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Yoon K, Lee H, Kwon G, Song H. Pyrolytic conversion of cattle manure and acid mine drainage sludge into biochar for oxidative and adsorptive removal of the antibiotic nitrofurantoin. ENVIRONMENTAL RESEARCH 2025; 265:120488. [PMID: 39617152 DOI: 10.1016/j.envres.2024.120488] [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: 10/10/2024] [Revised: 11/15/2024] [Accepted: 11/28/2024] [Indexed: 12/13/2024]
Abstract
Antibiotics in aquatic environments can foster the development of antibiotic-resistant bacteria, posing significant risks to both living organisms and ecosystems. This study explored the thermo-chemical conversion of cattle manure (CM) into biochar and assessed its potential as an environmental medium for removing nitrofurantoin (NFT) from water. The biochar was produced through the co-pyrolysis of CM and acid mine drainage sludge (AMDS) in a N2 condition. The gaseous and liquid products generated during pyrolysis were quantified and characterized. The biochar exhibited both catalytic and adsorptive capability in NFT removal. It effectively activated persulfate to drive oxidative degradation of NFT via radical (SO4•- and •OH) and non-radical (1O2) pathways. NFT adsorption on the biochar involved multiple binding mechanisms, including electrostatic, hydrogen bonds, and π-π EDA interactions, as evidenced by XPS analysis before and after the reaction. Furthermore, the biochar's performance stability was demonstrated through five cycles of reuse and leaching tests. These findings present a viable approach to generate energy from waste by co-pyrolyzing of livestock manure and metal-containing industrial waste, while also producing environmental media capable of removing antibiotics from wastewater through diverse mechanisms.
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Affiliation(s)
- Kwangsuk Yoon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Heuiyun Lee
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Gihoon Kwon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Hocheol Song
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea.
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Chen Z, Zhang Y, Yang B, Fan S, Li L, Yang P, Zhang W. Revealing the interplay of dissolved organic matters variation with microbial symbiotic network in lime-treated sludge landscaping. ENVIRONMENTAL RESEARCH 2024; 263:120216. [PMID: 39442659 DOI: 10.1016/j.envres.2024.120216] [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: 07/29/2024] [Revised: 09/29/2024] [Accepted: 09/30/2024] [Indexed: 10/25/2024]
Abstract
Lime pretreatment is commonly used for sludge hygienization. Appropriate lime dosage is crucial for achieving both sludge stabilization (lime dosage >0.2 g/g-TS) and promoting plant and soil health during subsequent landscaping (lime dosage <0.8 g/g-TS). While much research has been conducted on sludge lime treatment, few studies have examined the effects of lime dosing on integrating sludge stabilization and plant growth promotion during landscaping. In this study, we investigated microbial dynamics and dissolved organic matter (DOM) transformation during sludge landscaping with five lime dosage gradients (0, 0.2, 0.4, 0.6, 0.8 g lime/g-TS) over 90 days. Our results showed that a lime dosage of 0.4 g/g-TS is the lower threshold for achieving waste activated sludge (WAS) stabilization during landscaping, leading to maximum humic substance formation and minimal phytotoxicity. Specifically, at 0.4 g/g-TS lime dosage, protein degradation and decarboxylation-induced humification were significantly enhanced. The predominant microbial genera shifted from Aromatoleum to Exiguobacterium and Romboutsia (both affiliated with the phylum Firmicutes). Reactomics analysis further indicated that a 0.4 g/g-TS lime dosage promoted the hydrolysis of proteins (lyase reactions on C-C, C-O, and C-N bonds), amino acid metabolism, and decarboxylation-induced humification (e.g., C1H2O2, C2H4O2, C5H4O2, C6H4O2). The co-occurrence network analysis suggested that the phyla Firmicutes, Proteobacteria, and Bacteroidetes were key players in DOM transformation. This study provides an in-depth understanding of microbe-mediated DOM transformation during sludge landscaping and identifies the optimal lime dosage for improving sludge landscaping efficiency.
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Affiliation(s)
- Zexu Chen
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Yu Zhang
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Boyuan Yang
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Sen Fan
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Lanfeng Li
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Peng Yang
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, Jilin, China
| | - Weijun Zhang
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, Hubei, China; National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
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Yu D, Li Z, Li J, Li B, Yu H, He J, Wang Y. Role of municipal solid waste incineration fly ash components in co-pyrolysis of oily sludge: Pyrolysis products and catalytic mechanism. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134368. [PMID: 38657512 DOI: 10.1016/j.jhazmat.2024.134368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/08/2024] [Accepted: 04/18/2024] [Indexed: 04/26/2024]
Abstract
The co-pyrolysis of oily sludge (OS) and municipal solid waste incineration fly ash (IFA) is a promising strategy for sustainable waste management. This study delves into the distinct catalytic roles of individual IFA components during co-pyrolysis and assesses their impact on the inherent Fe species in OS, highlighting their contributions to overall catalytic activity. Notably, in comparison to IFA, CaCl2 and KCl significantly enhance pyrolysis oil upcycling, while IFA components collectively exhibit a positive catalytic effect on pyrolysis gas and coke production. Ca(OH)2 notably boosts H2 yield by 137.16 %. Alkali chlorides facilitate gaseous hydrocarbon formation and convert oxygen-containing compounds to CO and CO2 which are subsequently consumed and absorbed by CaO and Ca(OH)2. CaCl2 and KCl promote heavy compound decomposition and alkane aromatization, reducing coke formation and increasing light aromatic production. Conversely, NaCl increases alkane proportions. However, CaSO4 and CaCO3 hinder catalytic reactions, promoting carbon conversion to coke. Importantly, IFA compounds aid the dispersion of inherent Fe-based species from OS on char surface, enhancing in-situ catalytic pyrolysis. Additionally, the augmented H2 production accelerates the reduction of Fe-based species. The findings expand waste utilization possibilities and provide insights for co-processing solid wastes.
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Affiliation(s)
- Di Yu
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China; Department of Civil Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Zhiwei Li
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Jie Li
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Bo Li
- Department of Civil Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Hao Yu
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Jun He
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China; Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, Ningbo 315100, China.
| | - Yin Wang
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China.
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Zhu G, Wang X, Yin X, Zhu M, Li J, Cao L, Sun Z, Zeng H. Influence of inherent minerals on metalworking fluids sludge pyrolysis: Products characterization and heavy metals behavior. Heliyon 2024; 10:e26256. [PMID: 38380051 PMCID: PMC10877409 DOI: 10.1016/j.heliyon.2024.e26256] [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: 01/12/2024] [Revised: 01/26/2024] [Accepted: 02/08/2024] [Indexed: 02/22/2024] Open
Abstract
Safely and appropriately disposing of metalworking fluids sludge (MFS) remains a challenge owing to its highly hazardous properties, this work investigated MFS pyrolysis at various temperatures (500, 600, 700, 800, and 900 °C) for energy recovery and safety treatment of MFS. The experimental results indicated that inherent minerals at higher temperatures could enhance the gas yields and promote the qualities of oil and gas from MFS pyrolysis. The highest pyrolysis gas yield was achieved at 18.86 wt% after MFS pyrolysis at 900 °C. GC-MS analysis revealed that the inherent minerals facilitated a decrease in oxygenated and nitrogenated compounds within the oil, while simultaneously leading to a substantial increase in hydrocarbon contents. Notably, the highest content of aromatics (61.16%) was attained during pyrolysis at 900 °C. Moreover, inherent minerals improved carbon sequestration and the characteristics of biochar during the MFS pyrolysis. The leaching contents of heavy metals in biochars were reduced, thereby reducing the heavy metals associated environmental risk. This research suggests that the pyrolysis process was a promising approach for simultaneous energy recovery and MFS disposal with low environmental risk.
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Affiliation(s)
- Guidan Zhu
- School of Chemistry and Chemical Engineering, Changji University, Changji, 831100, China
| | - Xingdong Wang
- Department of Civil Engineering, 23 College Walk, Monash University, Victoria, 3800, Australia
| | - Xuan Yin
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Mengmeng Zhu
- Xinjiang Qinghua Energy Group Co., Ltd., Yining, 835100, China
| | - Jiaying Li
- School of Chemistry and Chemical Engineering, Changji University, Changji, 831100, China
| | - Ling Cao
- School of Chemistry and Chemical Engineering, Changji University, Changji, 831100, China
| | - Zhiyang Sun
- School of Chemistry and Chemical Engineering, Changji University, Changji, 831100, China
| | - Hehua Zeng
- School of Chemistry and Chemical Engineering, Changji University, Changji, 831100, China
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Zhang W, Li Q, He Y, Wang Y, Wang L, Zhu Y. Effects of inherent components and disposal temperature on the melting behavior of petrochemical sludge char during CO 2 gasification. JOURNAL OF HAZARDOUS MATERIALS 2024; 463:132922. [PMID: 37939566 DOI: 10.1016/j.jhazmat.2023.132922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 10/27/2023] [Accepted: 11/01/2023] [Indexed: 11/10/2023]
Abstract
Pyrolysis-coupled gasification-melting is a promising technology as it can dispose of the petrochemical sludge (PS) and recover the leftover energy. Unfortunately, there has been little research investigating the effects of pyrolysis degree on melting characteristics of the pyrolysis residue (PR) and the transformation properties of the heavy metal (HM). In this study, the function of inherent components and disposal temperature were elucidated. The results show that the moisture and light volatile could disperse the melting residue (MR) during gasification-melting treatment, causing different morphology and color of the MR. In addition, as pyrolysis temperature increased, the HMs speciation (e.g. Zn, Cu, and Cr) in the PR was transformed from bioavailable to a stable state, and the yield of PR decreased from 66.8% to 36.5%. The PR produced at 800 °C could decrease about 0.9 ∼ 1.9 potential ecological risk of releasing substances during the subsequent high-temperature gasification-melting owing to its stable HMs state and less char composition. Moreover, the gasification at 1250 °C could realize the safe disposal of the PR. Further increasing the gasification temperature to 1450 °C could not improve the acid-leaching resistance of the HMs, although the apparent concentration of C and the acid dissolution proportion of slag decreased by 6.3% and 1.7%, respectively.
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Affiliation(s)
- Wenqi Zhang
- School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China; Jiangsu Province Engineering Research Center of Organic Solid Wastes Deeply Treatment and Hydrogen Production, Jiangsu, China
| | - Qingdong Li
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China; Jiangsu Province Engineering Research Center of Organic Solid Wastes Deeply Treatment and Hydrogen Production, Jiangsu, China
| | - Yahui He
- School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China; Jiangsu Province Engineering Research Center of Organic Solid Wastes Deeply Treatment and Hydrogen Production, Jiangsu, China
| | - Yinfeng Wang
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China; Jiangsu Province Engineering Research Center of Organic Solid Wastes Deeply Treatment and Hydrogen Production, Jiangsu, China.
| | - Lei Wang
- Jiangsu Province Engineering Research Center of Organic Solid Wastes Deeply Treatment and Hydrogen Production, Jiangsu, China; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Yuezhao Zhu
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China; Jiangsu Province Engineering Research Center of Organic Solid Wastes Deeply Treatment and Hydrogen Production, Jiangsu, China
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