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Samavati Z, Goh PS, Fauzi Ismail A, Lau WJ, Samavati A, Ng BC, Sohaimi Abdullah M. Advancements in membrane technology for efficient POME treatment: A comprehensive review and future perspectives. J Environ Sci (China) 2025; 155:730-761. [PMID: 40246505 DOI: 10.1016/j.jes.2024.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 11/03/2024] [Accepted: 11/05/2024] [Indexed: 04/19/2025]
Abstract
The treatment of POME related contamination is complicated due to its high organic contents and complex composition. Membrane technology is a prominent method for removing POME contaminants on account of its efficiency in removing suspended particles, organic substances, and contaminants from wastewater, leading to the production of high-quality treated effluent. It is crucial to achieve efficient POME treatment with minimum fouling through membrane advancement to ensure the sustainability for large-scale applications. This article comprehensively analyses the latest advancements in membrane technology for the treatment of POME. A wide range of membrane types including forward osmosis, microfiltration, ultrafiltration, nanofiltration, reverse osmosis, membrane bioreactor, photocatalytic membrane reactor, and their combinations is discussed in terms of the innovative design, treatment efficiencies and antifouling properties. The strategies for antifouling membranes such as self-healing and self-cleaning membranes are discussed. In addition to discussing the obstacles that impede the broad implementation of novel membrane technologies in POME treatment, the article concludes by delineating potential avenues for future research and policy considerations. The understanding and insights are expected to enhance the application of membrane-based methods in order to treat POME more efficiently; this will be instrumental in the reduction of environmental pollution.
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Affiliation(s)
- Zahra Samavati
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia.
| | - Pei Sean Goh
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia.
| | - Woei Jye Lau
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia
| | - Alireza Samavati
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia
| | - Be Cheer Ng
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia
| | - Mohd Sohaimi Abdullah
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia
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Zhang S, Xu J. Multi-strain synergistic fermentation of waste biomass with bacterial cellulose fermentation wastewater to prepare sustainable detergents. Bioprocess Biosyst Eng 2025:10.1007/s00449-025-03172-y. [PMID: 40325272 DOI: 10.1007/s00449-025-03172-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2025] [Accepted: 04/16/2025] [Indexed: 05/07/2025]
Abstract
Synthetic surfactants threaten the environment and public health due to their difficult degradation and high toxicity, creating a need for low-energy, high-efficiency green alternatives. Preparing natural surfactants is often expensive, inefficient, and complex, while the resource utilization of bacterial cellulose (BC) fermentation wastewater is still tricky. In this study, waste biomass, including pineapple peel and Sapindus mukorossi Gaertn., was combined with BC fermentation wastewater using synergistic fermentation by Saccharomyces cerevisiae, Lactobacillus sp., and Acetobacter sp. to extract triterpene saponins and proteases. This process was used to prepare green detergents enriched with surface-active substances. The results showed that after 10 days of fermentation, the saponin extraction efficiency reached 84.29%, significantly outperforming traditional methods such as ultrasound-assisted alcoholic extraction (16.17%), ultrasound-water immersion (19.00%), double extraction (31.72%), and cellulase-assisted extraction (38.98%). Protease activity reached 36.92 ± 0.20 U/mg. The fermentation broth reduced surface tension by 36.95 mN/m compared to pure water, which improved emulsification and dispersion. It exhibited high surface activity and foam stability with a low critical micelle concentration (CMC) of 0.163 ± 0.01 mg/mL. Green detergents showed a 20.71-45.87% higher efficiency than synthetic detergents in removing carbon black oil (90.38%), sebum (100%), and protein stains (89%). Saponins contributed to this advantage by reducing surface tension (P ≤ 0.01) and enhancing wettability (P ≤ 0.05). This study provides a sustainable new solution for the high-value utilization of waste biomass and BC fermentation wastewater and exhibits the broad prospects of green detergents for environmental and industrial applications.
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Affiliation(s)
- Shuangfei Zhang
- College of Textile Science and Engineering, College of Textiles and Clothing, Jiangnan University, 1800 Lihu AVE, Wuxi, 214122, People's Republic of China
| | - Jin Xu
- College of Textile Science and Engineering, College of Textiles and Clothing, Jiangnan University, 1800 Lihu AVE, Wuxi, 214122, People's Republic of China.
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Nguyen GT, Iftekhar MS, Ratnasiri S, Roiko A, Beal CD. Supply, demand and the economic effectiveness of urine-diverting technologies and products: A systematic literature review. WATER RESEARCH 2024; 255:121478. [PMID: 38522400 DOI: 10.1016/j.watres.2024.121478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 03/26/2024]
Abstract
The broader adoption of urine-diverting technologies (UDTs) and related products has been proposed as a strategy for moving towards a more circular economy. While some studies have explored the performance of UDTs, the interconnected factors involving supply, demand, and economic feasibility of UDTs remain under-researched. Our systematic review addresses this gap. Our search identified only 64 relevant, peer-reviewed studies, 71 % of which addressed the supply side (primarily the technical aspect of UDTs) and 58 % of which addressed the demand side (focusing on consumers' perceptions). Approximately one-third (18) of these studies delved into the economic feasibility of UDTs, with only 9 employing a cost benefit analysis (CBA) framework. However, none of these studies have analysed the economic performance of UDTs that have been fully deployed, indicating a significant knowledge gap. Our review suggests that overcoming challenges in scaling up UDTs can be achieved by engaging those stakeholders driving the uptake, developing business cases that offer an overall understanding of both market and non-market benefits of UDTs, addressing technological constraints by optimising urine treatment options for efficiency and economic viability, and enhancing stakeholders' acceptance of UDTs.
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Affiliation(s)
- Gam T Nguyen
- Griffith Business School, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia; Cities Research Institute, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia.
| | - Md Sayed Iftekhar
- Griffith Business School, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia; Cities Research Institute, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia.
| | - Shyama Ratnasiri
- Griffith Business School, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia.
| | - Anne Roiko
- School of Pharmacy and Medical Sciences (Environmental Health), Griffith University, Parklands Drive, Southport Gold Coast Campus, QLD 4222, Australia; Cities Research Institute, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia.
| | - Cara D Beal
- Cities Research Institute, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia.
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Najam T, Hashmi I. Monitoring of university wastewater within the sewage system and its performance evaluation through integrated constructed wetlands. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:403. [PMID: 38556601 DOI: 10.1007/s10661-024-12575-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 03/23/2024] [Indexed: 04/02/2024]
Abstract
Rapid increase in population and industrialization has not only improved the lifestyle but adversely affected the quality and availability of water leading to ample amount of wastewater generation. The major contribution towards wastewater production is from sewage. Regular monitoring and treatment of sewage water is necessary to conserve and enhance the quality of water. The present study focuses on monitoring of sewage water within the sewage system of a residential university. A total of 16 samples from different manholes were collected for physicochemical and heavy metals analysis and compared with final effluent collected from integrated constructed wetlands (ICWs) to assess its removal efficiency. The mean concentrations of influent and effluent were compared with national environmental quality standards (NEQS) for municipal discharge (pH 6-9, COD 150 mg/L, TSS 200 mg/L and TDS 3500 mg/L) and international agricultural reuse standards (IARS) (pH 6-8, COD <150 mg/L, TSS < 100 mg/L) respectively. Among all physicochemical parameters, influent values for chemical oxygen demand (COD) (169.56-258.36) mg/L exceeded the limit of NEQS for discharge into inland waters, whereas for total suspended solids (TSS) the concentration exceeded for discharge into STP (406 mg/L) and inland waters (202.33 mg/L). However, effluent concentrations for all the parameters were found within the permissible limit set by IARS. The removal efficiency for different parameters such as phosphate- phosphorus (PO43-P), COD, TSS, total dissolved solids (TDS) and total kjeldahl nitrogen (TKN) were 52, 53, 54, 35, and 36%, respectively. Heavy metal concentrations were compared with WHO guidelines among which lead (Pb) in effluent and chromium (Cr) in influent exceeded the limit (Pb 0.01 and Cr 0.05 mg/L). Interpolation results showed that zone 2 was highly contaminated in comparison to zone 1 & 3. Statistical analysis showed that correlation of physicochemical parameters and heavy metals was found significant (p < 0.05).
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Affiliation(s)
- Talyaa Najam
- School of Civil and Environmental Engineering (SCEE), Institute of Environmental Sciences and Engineering (IESE), National University of Sciences and Technology (NUST), Sector H-12 Campus, Islamabad, Pakistan
| | - Imran Hashmi
- School of Civil and Environmental Engineering (SCEE), Institute of Environmental Sciences and Engineering (IESE), National University of Sciences and Technology (NUST), Sector H-12 Campus, Islamabad, Pakistan.
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Chang M, Zhu T, Xiao T, Wang J, Wang N, Song Y, Wang Y. Novel process for organic wastewater treatment using aerobic composting technology: Shifting from pollutant removal towards resource recovery. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169522. [PMID: 38141992 DOI: 10.1016/j.scitotenv.2023.169522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/05/2023] [Accepted: 12/17/2023] [Indexed: 12/25/2023]
Abstract
In this study, an organic wastewater treatment process based on aerobic composting technology was developed in order to explore the transition of wastewater treatment from pollutants removal to resource recovery. The novelty of the process focuses towards the microbial metabolic heat that is often ignored during the composting, and taking advantage of this heat for wastewater evaporation to achieve zero-discharge treatment. Meanwhile, this process can retain the wastewater's nutrients in the composting substrate to realize the recovery of resources. This study determined the optimum condition for the process (initial water content of 50 %, C/N ratio of 25:1, ventilation rate of 3 m3/h), and 69.9 % of the total heat generated by composting was used for wastewater treatment under the condition. The HA/FA ratio of composting substrate increased from 0.07 to 0.53 after wastewater treatment, and the retention ratio of TOC and TN was 52.3 % and 61.7 %, respectively, which proved the high recycling value of the composting products. Thermoduric and thermophilic bacteria accounted for 44.3 % of the community structure at the maturation stage, which played a pivotal role in both pollutant removal and resource recovery.
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Affiliation(s)
- Mingdong Chang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Tong Zhu
- School of Mechanical Engineering and Automation, Northeastern University, 3-11 Wenhua Road, Shenyang 110819, China; DongYuan Environment S&T, 400-19 Zhihui 2 Road, Shenyang 110004, China
| | - Tangfu Xiao
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Jianqiao Wang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Nana Wang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yang Song
- Liaoning Coning Testing Co. Ltd., No. 603, 16-6 Wensu Street, Shenyang, 110170, China
| | - Youzhao Wang
- School of Mechanical Engineering and Automation, Northeastern University, 3-11 Wenhua Road, Shenyang 110819, China.
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Muloiwa M, Dinka M, Nyende‐Byakika S. Application of Artificial Neural Network for predicting biomass growth during domestic wastewater treatment through a biological process. Eng Life Sci 2023; 23:e2200058. [PMID: 37153027 PMCID: PMC10158627 DOI: 10.1002/elsc.202200058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 03/05/2023] [Accepted: 03/12/2023] [Indexed: 05/09/2023] Open
Abstract
The biological treatment process is responsible for removing organic and inorganic matter in wastewater. This process relies heavily on microorganisms to successfully remove organic and inorganic matter. The aim of the study was to model biomass growth in the biological treatment process. Multilayer perceptron (MLP) Artificial Neural Network (ANN) algorithm was used to model biomass growth. Three metrics: coefficient of determination (R 2), root mean squared error (RMSE), and mean squared error (MSE) were used to evaluate the performance of the model. Sensitivity analysis was applied to confirm variables that have a strong influence on biomass growth. The results of the study showed that MLP ANN algorithm was able to model biomass growth successfully. R 2 values were 0.844, 0.853, and 0.823 during training, validation, and testing phases, respectively. RMSE values were 0.7476, 1.1641, and 0.7798 during training, validation, and testing phases respectively. MSE values were 0.5589, 1.3551, and 0.6081 during training, validation, and testing phases, respectively. Sensitivity analysis results showed that temperature (47.2%) and dissolved oxygen (DO) concentration (40.2%) were the biggest drivers of biomass growth. Aeration period (4.3%), chemical oxygen demand (COD) concentration (3.2%), and oxygen uptake rate (OUR) (5.1%) contributed minimally. The biomass growth model can be applied at different wastewater treatment plants by different plant managers/operators in order to achieve optimum biomass growth. The optimum biomass growth will improve the removal of organic and inorganic matter in the biological treatment process.
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Affiliation(s)
- Mpho Muloiwa
- Department of Civil EngineeringTshwane University of TechnologyPretoriaSouth Africa
| | - Megersa Dinka
- Department of Civil Engineering ScienceUniversity of JohannesburgJohannesburgSouth Africa
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Increase by Substitution of Galvanized Steel for Aluminum Mirrors in the UV Solar Radiation in Canal with Fins and Side Panels That Disinfect Wastewater. Processes (Basel) 2022. [DOI: 10.3390/pr11010084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The need arises to seek new depuration technological responses aimed at the reuse of wastewater, which requires the development and promotion of economically and environmentally sustainable technologies. In this paper, it studies an improvement to a disinfection system sustainable, low-cost, patented in 2019, and based on solar energy. The water passes through a canal of reflective material in the continuous regime, and in the batch regime, the water remains in the canal. The panels are located parallel to the lateral faces of the canal. The fraction of the radiation reflected outside the canal reaches the reflective side panels that return the radiation to the canal. These panels concentrate the radiation in the canal through reflection. The disinfectant canal with fins and side panels uses ultraviolet radiation to eliminate the bacterial load carried by treated wastewater. For this reason, the present work analyzes the incidence in the area of influence of the disinfectant canal. When reflective aluminum mirrors were installed on the sloping walls of the canal, global radiation increased by 4%, when they were used on the side panels, it increased 3%, and when the aluminum mirrors were used on the canal walls and side panels, it increased 8%. The important thing about this work is that it opens windows for improving the system through materiality so the new challenge is the search for the optimal material considering the impact on global radiation and consequently on the bacteriological elimination.
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Muloiwa M, Dinka M, Nyende-Byakika S. Impact of temperature and airflow rate on the removal of organic pollutants and inorganic pollutants in the biological treatment process. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1016/j.sajce.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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9
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Didecyldimethylammonium Chloride- and Polyhexamethylene Guanidine-Resistant Bacteria Isolated from Fecal Sludge and Their Potential Use in Biological Products for the Detoxification of Biocide-Contaminated Wastewater Prior to Conventional Biological Treatment. BIOLOGY 2022; 11:biology11091332. [PMID: 36138811 PMCID: PMC9495721 DOI: 10.3390/biology11091332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022]
Abstract
Simple Summary Every year, more than a million tons of fecal sludge (FS) containing biocides based on quaternary ammonium compounds and guanidine derivatives, which are widely used for FS deodorization and control of microbial activity, are generated in the environmentally safe toilet complexes of Russian Railways trains. Higher disposal costs for such biocide-contaminated FS due to activated sludge toxicity increases pressure on sanitary equipment servicing companies («Ecotol Service» LLC) to more efficiently discharge FS to wastewater treatment plants. In this work, we have developed a new environmentally friendly approach to reducing the toxicity of FS, based on the use of biological products from biocide-resistant bacterial strains isolated from FS. Our approach has proven to be effective in a series of FS biodegradation experiments, biological oxygen demand tests, and a newly developed disk-diffusion bioassay. Abstract Toxic shock caused by the discharge of biocide-contaminated fecal sludge (FS) from chemical toilets to conventional wastewater treatment plants (WWTP) can be a major problem in activated sludge operation. It is necessary to develop new environmental approaches to mitigate the toxicity of biocides in order to avoid degrading the performance of WWTP. “Latrina”, a chemical toilet additive containing didecyldimethylammonium chloride and polyhexamethylene guanidine, is widely used in environmentally safe toilet complexes (ESTC) on Russian railway trains to deodorize FS and control microbial activity. In this work, seven biocide-resistant bacterial strains were isolated and identified from the FS of ESTC. The values of the minimum inhibitory and bactericidal concentrations of biocides for the isolated strains were 4.5–10 times higher than for the collection microorganisms. The bacterium Alcaligenes faecalis DOS7 was found to be particularly resistant to “Latrina”, the minimum inhibitory concentration of which was almost 30 times higher than recommended for ESTC. Biological products based on isolated bacterial strains proved to be effective for FS biodegradation under both aerobic and anaerobic conditions. The results of the biochemical oxygen demand test and the newly developed disk-diffusion bioassay confirmed that isolated strains contribute to reducing toxicity of biocidal agents in FS. Hyper-resistance, non-pathogenicity, and potential plant growth-promoting ability make A. faecalis DOS7 promising for use in various biological products for wastewater treatment and bioremediation of soils contaminated with biocides, as well as in agriculture to increase plant productivity.
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A Review of Hybrid Process Development Based on Electrochemical and Advanced Oxidation Processes for the Treatment of Industrial Wastewater. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1155/2022/1105376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Nowadays, increased human activity, industrialization, and urbanization result in the production of enormous quantities of wastewater. Generally, physicochemical and biological methods are employed to treat industrial effluent and wastewater and have demonstrated high efficacy in removing pollutants. However, some industrial effluent and wastewater contain contaminants that are extremely difficult to remove using standard physicochemical and biological processes. Previously, electrochemical and hybrid advanced oxidation processes (AOP) were considered a viable and promising alternative for achieving an adequate effluent treatment strategy in such instances. These processes rely on the production of hydroxyl radicals, which are highly reactive oxidants that efficiently break down contaminants found in wastewater and industrial effluent. This review focuses on the removal of contaminants from industrial effluents and wastewater through the integration of electrochemical and advanced oxidation techniques. These processes include electrooxidation, electrocoagulation/electroflocculation, electroflotation, photo-Fenton, ozone-photo-Fenton, sono-photo-Fenton, photo-electro-Fenton, ozone/electrocoagulation, sono-electrocoagulation, and peroxi/photo/electrocoagulation. The data acquired from over 150 published articles, most of which were laboratory experiments, demonstrated that the hybrid process is more effective in removing contaminants from industrial effluent and wastewater than standalone processes.
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Norfarhana A, Ilyas R, Ngadi N, Sharma S, Sayed MM, El-Shafay A, Nordin A. Natural Fiber-Reinforced Thermoplastic ENR/PVC Composites as Potential Membrane Technology in Industrial Wastewater Treatment: A Review. Polymers (Basel) 2022; 14:2432. [PMID: 35746008 PMCID: PMC9228183 DOI: 10.3390/polym14122432] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 02/01/2023] Open
Abstract
Membrane separation processes are prevalent in industrial wastewater treatment because they are more effective than conventional methods at addressing global water issues. Consequently, the ideal membranes with high mechanical strength, thermal characteristics, flux, permeability, porosity, and solute removal capacity must be prepared to aid in the separation process for wastewater treatment. Rubber-based membranes have shown the potential for high mechanical properties in water separation processes to date. In addition, the excellent sustainable practice of natural fibers has attracted great attention from industrial players and researchers for the exploitation of polymer composite membranes to improve the balance between the environment and social and economic concerns. The incorporation of natural fiber in thermoplastic elastomer (TPE) as filler and pore former agent enhances the mechanical properties, and high separation efficiency characteristics of membrane composites are discussed. Furthermore, recent advancements in the fabrication technique of porous membranes affected the membrane's structure, and the performance of wastewater treatment applications is reviewed.
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Affiliation(s)
- A.S. Norfarhana
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia; (A.N.); (N.N.); (A.N.)
- Department of Petrochemical Engineering, Politeknik Tun Syed Nasir Syed Ismail, Pagoh Education Hub, Pagoh Muar 84600, Johor, Malaysia
| | - R.A. Ilyas
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia; (A.N.); (N.N.); (A.N.)
- Centre for Advanced Composite Materials (CACM), Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
- Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
| | - N. Ngadi
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia; (A.N.); (N.N.); (A.N.)
| | - Shubham Sharma
- Mechanical Engineering Department, University Center for Research & Development (UCRD), Chandigarh University, Mohali 140413, Punjab, India;
- Department of Mechanical Engineering, IK Gujral Punjab Technical University, Main Campus-Kapurthala, Kapurthala 144603, Punjab, India
| | - Mohamed Mahmoud Sayed
- Architectural Engineering, Faculty of Engineering and Technology, Future University in Egypt, New Cairo 11845, Egypt;
| | - A.S. El-Shafay
- Department of Mechanical Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Alkharj 16273, Saudi Arabia
| | - A.H. Nordin
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia; (A.N.); (N.N.); (A.N.)
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Jegatheesan V, Shu L, Rene ER, Lin TF. Challenges in Environmental Science/Engineering and fate and innovative treatment/remediation of emerging pollutants. CHEMOSPHERE 2022; 292:133497. [PMID: 34995630 DOI: 10.1016/j.chemosphere.2021.133497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Solid waste Management: There are two articles in this section. Shi et al. (2021) investigated the unbalanced status and multidimensional influences of municipal solid waste management in Africa. It was identified that economic growth, urbanization and geographical location are the most critical factors influencing the unbalanced statue of MSW management in Africa.
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Affiliation(s)
- Veeriah Jegatheesan
- School of Engineering and Water: Effective Technologies and Tools (WETT) Research Centre, RMIT University, Melbourne, VIC, 3000, Australia.
| | - Li Shu
- School of Engineering, Edith Cowan University, 70 Joondalup Drive, Joondalup, Perth, WA, 6027, Australia; LJS Environment, Parkville, VIC, 3052, Australia
| | - Eldon R Rene
- UNESCO-IHE Institute for Water Education, Westvest 7, 2611, AX Delft, the Netherlands
| | - Tsair-Fuh Lin
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
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Chen L, Qin J, Zhao Q, Ye Z. Treatment of dairy wastewater by immobilized microbial technology using polyurethane foam as carrier. BIORESOURCE TECHNOLOGY 2022; 347:126430. [PMID: 34843872 DOI: 10.1016/j.biortech.2021.126430] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 06/13/2023]
Abstract
The development of dairy industry is accompanied by large volumes of wastewater production, which is threaten to human's health and the biosphere. In this study, synthetic dairy wastewater was treated by immobilized microbial technology using polyurethane foam as carrier. Batch experiments were conducted to determine the effects of different operational parameters, and an up-flow immobilized microbial reactor was built to investigate long-term performance of the system. Batch experiments showed that COD, TN and NH3-N dropped from 1932, 51.33 and 51.42 mg·L-1 to 75.3, 5.17 and 4.54 mg·L-1 after 48 h, respectively, at the optimum conditions (25 °C, pH 6.0). Besides, the reactor can remove 97.33% of COD, 96.46% of TN and 99.55% of NH3-N with HRT of 24 h, which the average volume load was 1.93 kg COD·(m3·d)-1. The analysis of microbial community determined that dominant bacteria at genus level were Acinetobacter, Fusibacter, Nannocystis and norank _f_NS9_marine_group.
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Affiliation(s)
- Liuzhou Chen
- Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
| | - Jiangzhou Qin
- Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
| | - Quanlin Zhao
- Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
| | - Zhengfang Ye
- Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China.
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Ngo MTT, Diep BQ, Sano H, Nishimura Y, Boivin S, Kodamatani H, Takeuchi H, Sakti SCW, Fujioka T. Membrane distillation for achieving high water recovery for potable water reuse. CHEMOSPHERE 2022; 288:132610. [PMID: 34678340 DOI: 10.1016/j.chemosphere.2021.132610] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/15/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
Achieving high water recovery using reverse osmosis membranes is challenging during water recycling because the increased concentrations of organics and inorganics in wastewater can cause rapid membrane fouling, necessitating frequent cleaning using chemical agents. This study evaluated the potential of membrane distillation to purify reverse osmosis-concentrated wastewater and achieve 98% overall water recovery for potable water reuse. The results indicate that membrane fouling during membrane distillation treatment was low (4% reduction in permeability) until 98% water recovery. In contrast, membrane fouling during reverse osmosis treatments was high (73% reduction in permeability) before reaching 90% water recovery. Furthermore, membrane distillation showed superior performance in removing dissolved ions (99.9%) from wastewater as compared with reverse osmosis (98.9%). However, although membrane distillation removed most trace organic chemicals tested in this study, a negligible rejection (11%) was observed for N-nitrosodimethylamine, a disinfection byproduct regulated in potable water reuse. In contrast, RO treatment exhibited a high removal of N-nitrosodimethylamine (70%). Post-treatment (e.g., advanced oxidation) after reverse osmosis and membrane distillation may be needed to comply with the N-nitrosodimethylamine regulations. Overall, the membrane distillation process had the capacity to purify reverse osmosis concentrate with insignificant membrane fouling.
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Affiliation(s)
- My Thi Tra Ngo
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Binh Quoc Diep
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Hideaki Sano
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Yasuhisa Nishimura
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Sandrine Boivin
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Hitoshi Kodamatani
- Graduate School of Science and Engineering, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
| | - Haruka Takeuchi
- Research Center for Environmental Quality Management, Kyoto University, 1-2 Yumihama, Otsu, 520-0811, Japan
| | - Satya Candra Wibawa Sakti
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Campus C, Mulyorejo, Surabaya, 60115, Indonesia; Supramodification Nano-Micro Engineering Research Group, Universitas Airlangga, Campus C, Mulyorejo, Surabaya, 60115, Indonesia
| | - Takahiro Fujioka
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan.
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15
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Rajesh PP, Christine P, Ghangrekar MM. Optimum dose of Chaetoceros for controlling methanogenesis to improve power production of microbial fuel cell. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:257-264. [PMID: 35050881 DOI: 10.2166/wst.2021.510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The marine algae Chaetoceros contains hexadecatrienoic acid, which suppresses methanogen development and improves the coulombic efficiency (CE) of microbial fuel cells (MFC). To inhibit the methanogens, optimum concentration of marine algae should be added to the anaerobic sludge to enhance the performance of MFC. A varying concentration of Chaetoceros ranging from 1 to 20 mg/mL was carried out for pretreatment of an anaerobic-mix consortium to suppress methanogens. MFC inoculated with pretreated anaerobic sludge with 10 mg/mL Chaetoceros showed a maximum power density of 21.62 W/m3 and a maximum CE of 37.25%, which was considerably higher than the treatment with other concentrations. At 10 mg/mL concentration, Tafel analysis of the anode in the MFC showed a higher exchange current density of 66.35 mA/m2 and a lower charge transfer resistance of 0.97 Ω.m2, revealing higher bio-electrochemical activity. The performance of MFC improved when the concentration of Chaetoceros was increased up to 10 mg/mL, but then began to decline as the concentration increased further. Thus, the optimum dose of Chaetoceros to be added in the mix-anaerobic consortium to optimize the power performance of MFC was determined, which can be carried out in scaled-up MFCs.
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Affiliation(s)
- P P Rajesh
- PK Sinha Centre for Bioenergy, Indian Institute of Technology Kharagpur, Kharagpur 721302, India E-mail: ; Department of Biotechnology, Cochin University of Science and Technology, Kochi 682022, India
| | - P Christine
- Center for Green Technology, Institute of Chemical Technology, Mumbai 400019, India
| | - M M Ghangrekar
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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