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Application of Geopolymer in Stabilization/Solidification of Hazardous Pollutants: A Review. Molecules 2022; 27:molecules27144570. [PMID: 35889449 PMCID: PMC9317415 DOI: 10.3390/molecules27144570] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/09/2022] [Accepted: 07/13/2022] [Indexed: 02/04/2023] Open
Abstract
Geopolymers, as a kind of inorganic polymer, possess excellent properties and have been broadly studied for the stabilization/solidification (S/S) of hazardous pollutants. Even though many reviews about geopolymers have been published, the summary of geopolymer-based S/S for various contaminants has not been well conducted. Therefore, the S/S of hazardous pollutants using geopolymers are comprehensively summarized in this review. Geopolymer-based S/S of typical cations, including Pb, Zn, Cd, Cs, Cu, Sr, Ni, etc., were involved and elucidated. The S/S mechanisms for cationic heavy metals were concluded, mainly including physical encapsulation, sorption, precipitation, and bonding with a silicate structure. In addition, compared to cationic ions, geopolymers have a poor immobilization ability on anions due to the repulsive effect between them, presenting a high leaching percentage. However, some anions, such as Se or As oxyanions, have been proved to exist in geopolymers through electrostatic interaction, which provides a direction to enhance the geopolymer-based S/S for anions. Besides, few reports about geopolymer-based S/S of organic pollutants have been published. Furthermore, the adsorbents of geopolymer-based composites designed and studied for the removal of hazardous pollutants from aqueous conditions are also briefly discussed. On the whole, this review will offer insights into geopolymer-based S/S technology. Furthermore, the challenges to geopolymer-based S/S technology outlined in this work are expected to be of direct relevance to the focus of future research.
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Yap ZS, Khalid NHA, Haron Z, Mohamed A, Tahir MM, Hasyim S, Saggaff A. Waste Mineral Wool and Its Opportunities-A Review. MATERIALS 2021; 14:ma14195777. [PMID: 34640174 PMCID: PMC8510145 DOI: 10.3390/ma14195777] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 11/16/2022]
Abstract
Massive waste rock wool was generated globally and it caused substantial environmental issues such as landfill and leaching. However, reviews on the recyclability of waste rock wool are scarce. Therefore, this study presents an in-depth review of the characterization and potential usability of waste rock wool. Waste rock wool can be characterized based on its physical properties, chemical composition, and types of contaminants. The review showed that waste rock wool from the manufacturing process is more workable to be recycled for further application than the post-consumer due to its high purity. It also revealed that the pre-treatment method—comminution is vital for achieving mixture homogeneity and enhancing the properties of recycled products. The potential application of waste rock wool is reviewed with key results emphasized to demonstrate the practicality and commercial viability of each option. With a high content of chemically inert compounds such as silicon dioxide (SiO2), calcium oxide (CaO), and aluminum oxide (Al2O3) that improve fire resistance properties, waste rock wool is mainly repurposed as fillers in composite material for construction and building materials. Furthermore, waste rock wool is potentially utilized as an oil, water pollutant, and gas absorbent. To sum up, waste rock wool could be feasibly recycled as a composite material enhancer and utilized as an absorbent for a greener environment.
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Affiliation(s)
- Zhen Shyong Yap
- School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; (Z.S.Y.); (Z.H.); (A.M.)
| | - Nur Hafizah A. Khalid
- Centre for Advanced Composite Materials (CACM), School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- Correspondence:
| | - Zaiton Haron
- School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; (Z.S.Y.); (Z.H.); (A.M.)
| | - Azman Mohamed
- School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; (Z.S.Y.); (Z.H.); (A.M.)
| | - Mahmood Md Tahir
- UTM Construction Research Centre, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia;
| | - Saloma Hasyim
- UTM Construction Research Centre, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia;
| | - Anis Saggaff
- Civil Engineering Department, Faculty of Engineering, Sriwijaya University, Kota Palembang 30128, Sumatera Selatan, Indonesia; (S.H.); (A.S.)
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Sustainable Material Management of Industrial Hazardous Waste in Taiwan: Case Studies in Circular Economy. SUSTAINABILITY 2021. [DOI: 10.3390/su13169410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In recent years, the rapid economic development in Taiwan has resulted in greater complexity in handling industrial hazardous waste. The main aim of this paper was to present a trend analysis of the online reported amounts of industrial hazardous waste from the official database over the past decade (2010–2020). In addition, this study focused on the environmental policies and regulatory measures for the mandatory material resources from industrial hazardous waste according to the promulgation of the revised Waste Management Act. It was found that the annual reported amounts of industrial hazardous waste ranged from 1200 thousand metric tons to 1600 thousand metric tons, reflecting a balanced relationship between the industrial production and waste management. Based on the principles of resource recycling and circular economy, some case studies for specific types of industrial hazardous waste (including spent acid etchant, spent pickling liquid, and spent dimethyl formamide-contained liquid) were compiled to echo the government efforts in sustainable material management. In Taiwan, recycling amounts in 2020 were recorded up to 92,800, 130,460, and 54,266 metric tons, respectively. It was suggested to be a successful circular economy model in the printed circuit boards, steel/iron processing, and synthetic leather industries. In order to effectively reduce the environmental loadings and conserve material resources from industrial hazardous waste, some recommendations were also addressed to provide for the policy makers, environmental engineers and process manager.
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Reuse of the Materials Recycled from Renewable Resources in the Civil Engineering: Status, Achievements and Government's Initiatives in Taiwan. MATERIALS 2021; 14:ma14133730. [PMID: 34279298 PMCID: PMC8269877 DOI: 10.3390/ma14133730] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 11/26/2022]
Abstract
Growing concerns about the circular economy and sustainable waste management for civil applications of non-hazardous mineral industrial waste have increased in recent years. Therefore, this study presents a trend analysis of industrial waste generation and treatment during the years of 2010–2020, and focused on promotion policies and regulatory measures for mandatory renewable resources from industrial sources in Taiwan, including reclaimed asphalt pavement (RAP) material, water-quenched blast furnace slag, and ilmenite chlorination furnace slag. According to the official database of the online reported statistics during the period of 2010–2020, approximately three million metric tons per year of renewable resources were totally reused in civil engineering or related cement products, reflecting a balanced supply chain in the domestic market. Among these, water-quenched blast furnace slag accounted for about 90% (about 2.7 million metric tons) in Taiwan. Currently, the legislative framework of sustainable waste management in Taiwan is based on the Waste Management Act and the Resource Recycling Act, but there are some problems with them. In order to effectively reduce environmental loadings and conserve natural resources to mitigate climate change, some recommendations are addressed from different points of view.
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Tian Q, Guo B, Sasaki K. Immobilization mechanism of Se oxyanions in geopolymer: Effects of alkaline activators and calcined hydrotalcite additive. JOURNAL OF HAZARDOUS MATERIALS 2020; 387:121994. [PMID: 31901840 DOI: 10.1016/j.jhazmat.2019.121994] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/26/2019] [Accepted: 12/28/2019] [Indexed: 06/10/2023]
Abstract
Geopolymers have been widely adopted to stabilize the cationic pollutants. However, few studies have focused on the immobilization of anionic species. In this study, the immobilization of SeO32- and SeO42- was explored for the first time using geopolymer activated by different alkaline solutions (NaOH and Na2SiO3) with and without calcined hydrotalcite (CHT), characterized by TCLP, XRD, FTIR, TG, NMR, XAFS, and N2 adsorption-desorption isotherm. Na2SiO3-activated geopolymers without CHT additive showed lower leaching percentages of SeO32- and SeO42- (approximately 10 % and 18 %) than NaOH-activated geopolymers (approximately 58 % and 74 %). It has been proven that electrostatic interaction is the main association mode of SeO32- and SeO42- in both NaOH- and Na2SiO3-activated geopolymers. Hence, compactness plays a vital role in the Se leaching from geopolymer. The addition of CHT reduced the compactnesses of both NaOH- and Na2SiO3-geopolymers. Due to the formation of hydrotalcite, the CHT additive contributed to immobilize SeO32- and SeO42- in NaOH-activated geopolymers. However, this phenomenon was not observed in Na2SiO3-activated geopolymers. Thus, the leaching amount of Se greatly increased from Na2SiO3-activated geopolymers with CHT additive. This study provides new insights on the application of geopolymer to immobilize anionic pollutants.
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Affiliation(s)
- Quanzhi Tian
- Department of Earth Resources Engineering, Kyushu University, Fukuoka, 819-0395, Japan.
| | - Binglin Guo
- Department of Earth Resources Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Keiko Sasaki
- Department of Earth Resources Engineering, Kyushu University, Fukuoka, 819-0395, Japan.
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Liu Y, Chang J, Liu L, Kang L, Ran F. Study on the voltage drop of vanadium nitride/carbon composites derived from the pectin/VCl 3 membrane as a supercapacitor anode material. NEW J CHEM 2020. [DOI: 10.1039/d0nj00997k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The adsorption of metal ions and the further utilization of adsorbent materials help solve serious environmental pollution; therefore, transforming them into supercapacitor electrode materials could be a promising possibility.
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Affiliation(s)
- Ying Liu
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals
- School of Material Science and Engineering
- Lanzhou University of Technology
- Lanzhou 730050
- P. R. China
| | - Jianguo Chang
- Yantai Andre Pectin CO., LTD
- Yantai 264100
- P. R. China
| | - Lingyang Liu
- Laboratory of Clean Energy Chemistry and Materials
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese of Academy of Sciences
- Lanzhou 730000
| | - Long Kang
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals
- School of Material Science and Engineering
- Lanzhou University of Technology
- Lanzhou 730050
- P. R. China
| | - Fen Ran
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals
- School of Material Science and Engineering
- Lanzhou University of Technology
- Lanzhou 730050
- P. R. China
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Fulekar MH. Microbial degradation of petrochemical waste-polycyclic aromatic hydrocarbons. BIORESOUR BIOPROCESS 2017; 4:28. [PMID: 28725525 PMCID: PMC5493705 DOI: 10.1186/s40643-017-0158-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 06/16/2017] [Indexed: 11/17/2022] Open
Abstract
Background Petrochemical industry is one of the fastest growing industries. This industry has immense importance in the growth of economy and manufacture of large varieties of chemicals. The petrochemical industry is a hazardous group of industry generating hazardous waste containing organic and inorganic compounds. In spite of the present treatment process, the hazardous waste compounds are found untreated to the acceptable level and found discharged at soil–water environment resulting into the persistent organic–inorganic pollutant into the environment. The bioremediation will be the innovative techniques to remove the persistent pollutants in the environment. Result Petrochemical contaminated site was found to be a rich source of microbial consortium degrading polycyclic aromatic hydrocarbons. Indigenous microbial consortiums were identified and used for bioremediation of polycyclic aromatic hydrocarbons (naphthalene and anthracene) at the concentrations of 250, 500, and 750 ppm. The potential microorganism was also identified for naphthalene and anthracene, and their bioremediation was studied at varying concentrations. The bioremediation with consortium was found to be comparatively more effective than the potential microorganism used for bioremediation of each compound. Pseudomonas aeruginosa a potential organism was identified by 16S rRNA and further studied for the gene responsible for the PAH compounds. Conclusion Indigenous microorganism as a consortium has been found effective and efficient source for remediation of organic compound—Polycyclic aromatic hydrocarbon and this will also be applicable to remediate the toxic compounds to clean up the environment.
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Affiliation(s)
- M H Fulekar
- School of Environment and Sustainable Development, Central University of Gujarat, Sector 30, Gandhinagar, 382030 India.,Environmental Biotechnology Laboratory, Department of Life Sciences, University of Mumbai, Vidyanagari, Santacruz (E), Mumbai, 400098 India
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Hu Y, Hao X, Zhao D, Fu K. Enhancing the CH4 yield of anaerobic digestion via endogenous CO2 fixation by exogenous H2. CHEMOSPHERE 2015; 140:34-9. [PMID: 25455677 DOI: 10.1016/j.chemosphere.2014.10.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 07/10/2014] [Accepted: 10/05/2014] [Indexed: 05/20/2023]
Abstract
A large amount (25-60%) of degraded organics is converted directly to CO2 during anaerobic digestion (AD) process, which substantially lowers the energy (methane, CH4) yield. In this study, endogenous CO2 fixation by H2 from in-situ iron corrosion was explored to enhancing the CH4 yield. The results demonstrated that a substantial enhancement (up to 61%) in the CH4 yield could be achieved with both nano-scale zero-valent iron (NZVI) and waste iron scraps (WIS) being the added iron. Additionally, the added iron could also achieve effective phosphorus removal from the AD supernatant.
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Affiliation(s)
- Yuansheng Hu
- Beijing University of Civil Engineering and Architecture/Beijing Climate Change Research and Education Centre, Beijing 100044, PR China
| | - Xiaodi Hao
- Beijing University of Civil Engineering and Architecture/Beijing Climate Change Research and Education Centre, Beijing 100044, PR China.
| | - Dan Zhao
- Beijing University of Civil Engineering and Architecture/Beijing Climate Change Research and Education Centre, Beijing 100044, PR China
| | - Kunming Fu
- Beijing University of Civil Engineering and Architecture/Beijing Climate Change Research and Education Centre, Beijing 100044, PR China
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9
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Zhang HJ, Zhang JH, Xu J, Tang L, Mao ZG. A novel recycling process using the treated citric acid wastewater as ingredients water for citric acid production. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.06.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Evangelinos KI, Allan S, Jones K, Nikolaou IE. Environmental management practices and engineering science: a review and typology for future research. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2014; 10:153-162. [PMID: 24243581 DOI: 10.1002/ieam.1504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 11/14/2012] [Accepted: 09/16/2013] [Indexed: 06/02/2023]
Abstract
Current literature describes a number of environmental management practices and cleaner production methods that facilitate different industrial sectors to address their various environmental impacts. The high number of present practices makes their use especially difficult and complicated. This paper aims to shed light on this field by providing a typology of those environmental management practices (such as environmental management systems, environmental indicators assessment methodologies, and cleaner productions methods) and their limitations. It also describes the strengths and weaknesses of using such tools and thoughts for future research.
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Li N, Zhang T, Liang S. Reutilisation-extended material flows and circular economy in China. WASTE MANAGEMENT (NEW YORK, N.Y.) 2013; 33:1552-1560. [PMID: 23499387 DOI: 10.1016/j.wasman.2013.01.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 01/02/2013] [Accepted: 01/23/2013] [Indexed: 06/01/2023]
Abstract
Circular economy (CE), with its basic principle of Reduce, Reuse, and Recycle, has been determined as the key strategy for the national development plan by the Chinese government. Given the economy-wide material flow analysis (EW-MFA) that leaves the inner flow of resource reutilisation unidentified, the reutilisation-extended EW-MFA is first introduced to evaluate and analyse the material input, solid waste generation, and reutilisation simultaneously. The total amount of comprehensive reutilisation (CR) is divided into three sub-flows, namely, reutilisation, recycle, and reuse. Thus, this model is used to investigate the resource CR in China from 2000 to 2010. China's total amount of CR and its sub-flows, as well as the CR rate, remain to have a general upward trend. By the year 2010, about 60% of the overall solid waste generation had already been reutilised, and more than 20% of the total resource requirement was reutilised resource. Moreover, the growth patterns of the CR sub flows show different characteristics. Interpretations of resource reutilisation-related laws and regulations of CE and the corresponding policy suggestions are proposed based on the results.
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Affiliation(s)
- Nan Li
- School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China
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12
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Applications of Polymers in Construction Technology (PART VI): Effects of Recycled Textile fibers on reinforcement of cement. POLYM ADVAN TECHNOL 2013. [DOI: 10.1201/b14949-26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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13
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Salihoglu G. Industrial hazardous waste management in Turkey: current state of the field and primary challenges. JOURNAL OF HAZARDOUS MATERIALS 2010; 177:42-56. [PMID: 20015592 DOI: 10.1016/j.jhazmat.2009.11.096] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Revised: 10/15/2009] [Accepted: 11/18/2009] [Indexed: 05/28/2023]
Abstract
A holistic evaluation of a country's hazardous waste management (HWM) practices is useful in identifying the necessary actions to focus on. Based on an analysis of industrial hazardous waste (HW) generation in Turkey, this paper attempts to critically evaluate and report current Turkish HWM practices and discuss the primary challenges to be addressed. The generation of industrial HW for Turkey reported in 2004 was 1.195 million tons, which accounted for 7% of the total industrial solid waste (ISW) generated by the manufacturing industry, and for nearly 4.9% of the total solid waste generated in the country. The HW generated by the top five manufacturing product categories--basic metals, chemicals and chemical products, food and beverages, coke and refined petroleum, motor vehicles and trailers--accounted for 89.0% of total industrial HW. 21% of the HW generated in 2004 was recycled or reused, and 6% was sold or donated, whereas 73% was sent to ultimate disposal. 67% of the HW sent to ultimate disposal was disposed of at municipal landfills. The total capacity of the existing regional HW facilities is 212,500 tons/year, which accounts for about 24% of the HW to be disposed. Turkey has identified the HW problem in the country and enacted legislation, designated a lead agency, and promulgated rules and regulations. Several new initiatives are planned for improving HW management nationally; however, some HWM problems will be persistent due to previous and existing industrial development plans. These development policies led to the concentration of industry in regions marked by precious agricultural fields and high population density. This occurred because the government previously exhibited a default prioritization towards industrial development, leading to insufficient implementation of regulations on HW generators. Some of the problems may also be rooted in other countries that allow illegal trans boundary HW movements despite international regulations.
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Affiliation(s)
- Güray Salihoglu
- Environmental Engineering Department, Faculty of Engineering & Architecture, Uludag University, 16059 Bursa, Turkey.
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Singh D, Fulekar MH. Benzene bioremediation using cow dung microflora in two phase partitioning bioreactor. JOURNAL OF HAZARDOUS MATERIALS 2010; 175:336-343. [PMID: 19896765 DOI: 10.1016/j.jhazmat.2009.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2009] [Revised: 10/02/2009] [Accepted: 10/04/2009] [Indexed: 05/28/2023]
Abstract
Bioremediation of benzene has been carried out using cow dung microflora in a bioreactor. The bioremediation of benzene under the influence of cow dung microflora was found to be 100% and 67.5%, at initial concentrations of 100mg/l and 250 mg/l within 72 h and 168 h respectively; where as at higher concentration (500 mg/l), benzene was found to be inhibitory. Hence the two phase partitioning bioreactor (TPPB) has been designed and developed to carry-out biodegradation at higher concentration. In TPPB 5000 mg/l benzene was biodegraded up to 50.17% over a period of 168 h. Further the Pseudomonas putida MHF 7109 was isolated from cow dung microflora as potential benzene degrader and its ability to degrade benzene at various concentrations was evaluated. The data indicates 100%, 81% and 65% degradation at the concentrations of 50mg/l, 100mg/l, 250 mg/l within the time period of 24h, 96 h and 168 h respectively. The GC-MS data also shows the presence of catechol and 2-hydroxymuconic semialdehyde, which confirms the established pathway of benzene biodegradation. The present research proves the potential of cow dung microflora as a source of biomass for benzene biodegradation in TPPB.
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Affiliation(s)
- Dipty Singh
- Environmental Biotechnology Laboratory, Department of Life Sciences, University of Mumbai, Vidyanagari Campus, Santacruz (E), Mumbai-400 098, India
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Geng Y, Zhu Q, Haight M. Planning for integrated solid waste management at the industrial park level: a case of Tianjin, China. WASTE MANAGEMENT (NEW YORK, N.Y.) 2007; 27:141-50. [PMID: 17055715 DOI: 10.1016/j.wasman.2006.07.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2005] [Revised: 05/11/2006] [Accepted: 07/13/2006] [Indexed: 05/12/2023]
Abstract
Industrial parks play a significant role in the production and use of goods and services. The proper management of solid waste is a major challenge for industrial parks due to the large quantity of wastes and the variability of waste characteristics from these types of developments. Therefore, integrated solid waste management has become very crucial to the industrial park managers. Such an approach requires industrial park managers to assess the overall use of resources, and to seek waste reduction, reuse and recycling opportunities both at the individual company level and among different tenant companies. The adoption of this method can bring both economic and environmental benefits. This paper introduces the planning efforts of a real case in China. It first presents the basic information on Tianjin Economic Development Area (TEDA), and then introduces its current practices on solid waste management. The main focus of this paper is to describe how to plan an integrated solid waste management system at TEDA. Benefits and challenges are all identified and analyzed. The experiences and methods from this case study should be applied in other industrial parks so as to improve the overall eco-efficiency of the whole industrial park.
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Affiliation(s)
- Yong Geng
- Institute for Eco-planning and Development, School of Management Building, Dalian University of Technology, Dalian, Liaoning Province 116024, PR China.
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16
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Rout TK, Sengupta DK, Besra L. Flocculation improves uptake of 90Sr and 137Cs from radioactive effluents. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.minpro.2006.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Fan KS, Chang TC, Ni SP, Lee CH. Transboundary hazardous waste management. Part I: Waste management policy of importing countries. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2005; 23:505-13. [PMID: 16379119 DOI: 10.1177/0734242x05060965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Mixed metal-containing waste, polychlorinated biphenyls (PCB) containing capacitors, printed circuit boards, steel mill dust and metal sludge were among the most common wastes exported from Taiwan. Before the implementation of the self-monitoring model programme of the Basel Convention (secretariat of the Basel Convention 2001) in the Asia region, Taiwan conducted a comprehensive 4-year follow-up project involving government authorities and the waste disposal facilities of the importing countries. A total of five countries and nine plants were visited in 2001-2002. The following outcomes can be drawn from these investigations. The Chinese government adopts the strategies of 'on-site processing' and 'relative centralization' on the waste management by tightening permitting and increasing site inspection. A three-level reviewing system is adopted for the import application. The United States have not signed the Basel Convention yet; the procedures of hazardous waste import rely on bilateral agreements. Importers are not required to provide official notification from the waste exporting countries. The operation, administration, monitoring and licensing of waste treatment plants are governed by the state environmental bureau. Finland, France and Belgium are members of the European Union. The procedures and policies of waste import are similar. All of the documents associated with transboundary movement require the approval of each government involved. Practically, the notification forms and tracking forms effectively manage the waste movement.
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Affiliation(s)
- Kuo-Shuh Fan
- Department of Safety, Health, and Environmental Engineering, National Kaohsiung First University of Science and Technology, Taiwan, ROC.
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Casares ML, Ulierte N, Matarán A, Ramos A, Zamorano M. Solid industrial wastes and their management in Asegra (Granada, Spain). WASTE MANAGEMENT (NEW YORK, N.Y.) 2005; 25:1075-82. [PMID: 15936934 DOI: 10.1016/j.wasman.2005.02.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2003] [Revised: 05/14/2004] [Accepted: 02/09/2005] [Indexed: 05/02/2023]
Abstract
ASEGRA is an industrial area in Granada (Spain) with important waste management problems. In order to properly manage and control waste production in industry, one must know the quantity, type, and composition of industrial wastes, as well as the management practices of the companies involved. In our study, questionnaires were used to collect data regarding methods of waste management used in 170 of the 230 businesses in the area of study. The majority of these companies in ASEGRA are small or medium-size, and belong to the service sector, transport, and distribution. This was naturally a conditioning factor in both the type and management of the wastes generated. It was observed that paper and cardboard, plastic, wood, and metals were the most common types of waste, mainly generated from packaging (49% of the total volume), as well as material used in containers and for wrapping products. Serious problems were observed in the management of these wastes. In most cases they were disposed of by dumping, and very rarely did businesses resort to reuse, recycling or valorization. Smaller companies encountered greater difficulties when it came to effective waste management. The most frequent solution for the disposal of wastes in the area was dumping.
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Affiliation(s)
- M L Casares
- Department of Civil Engineering, E.T.S. I.C.C.P., University of Granada (Spain), Campus Universitario de Fuentenueva s/n, 18071 Granada, Spain
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Veit HM, Diehl TR, Salami AP, Rodrigues JS, Bernardes AM, Tenório JAS. Utilization of magnetic and electrostatic separation in the recycling of printed circuit boards scrap. WASTE MANAGEMENT (NEW YORK, N.Y.) 2005; 25:67-74. [PMID: 15681180 DOI: 10.1016/j.wasman.2004.09.009] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/28/2004] [Indexed: 05/24/2023]
Abstract
The progress of the technology is directly related to the growth of production and consumption of electrical/electronics equipment, especially of personal computers. This type of equipment has a relatively short average lifetime, 2-3 years. The amount of defective or obsolete equipment has been increasing substantially; consequently its disposition and/or recycling should be studied. In this work, printed circuit boards, which are used in personal computers, were studied in order to recover the metals in the circuit boards through mechanical processing, such as crushing, screening, as well as magnetic and electrostatic separation. The results obtained demonstrate the feasibility of using these processes to separate metal fractions from polymers and ceramics, and that it is possible to obtain a fraction concentrated in metals containing more than 50% on average of copper, 24% of tin and 8% of lead.
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Affiliation(s)
- H M Veit
- LACOR-PPGEM, Universidade Federal do Rio Grande do Sul, Brasil Av. Osvaldo Aranha 99/706, 90035-190 Porto Alegre - RS, Brazil.
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Tsai WT, Hsien KJ, Lai CW. Chemical Activation of Spent Diatomaceous Earth by Alkaline Etching in the Preparation of Mesoporous Adsorbents. Ind Eng Chem Res 2004. [DOI: 10.1021/ie0400651] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wen-Tien Tsai
- Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan
| | - Kuo-Jong Hsien
- Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan
| | - Chi-Wei Lai
- Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan
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Tsai WT, Chou YH. A review of environmental and economic regulations for promoting industrial waste recycling in Taiwan. WASTE MANAGEMENT (NEW YORK, N.Y.) 2004; 24:1061-1069. [PMID: 15567671 DOI: 10.1016/j.wasman.2004.07.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/29/2004] [Indexed: 05/24/2023]
Abstract
The objective of this paper is to present a compilation of recent Taiwan government laws/regulations to promote industrial waste recycling. The description is thus centered on legislation/regulations concerning general industrial wastes recycling in the policies of environmental protection, economic incentives and engineering technologies (3E) that have become effective since 2001. The regulatory system, including Waste Disposal Act, Resource Recycling/Reuse Act, Environmental Basis Law, and Statute for Upgrading Industries, not only gives financial incentives, but also provides technical assistance and information transfer on promoting industrial waste recycling. In order to further utilize the recyclable resources and upgrade the environmental technology, Taiwan's Environmental Protection Administration (EPA), in cooperation with the Ministry of Economic Affairs (MOEA), has jointly ventured some promotion programs, which highlight an Industrial Waste Exchange Information Center and Environmental Technology Park Development Program, also described in the paper.
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Affiliation(s)
- W T Tsai
- Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan.
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