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Waste generation is increasing day-by-day with the growth of population which directly affects the environment and economy. Organic municipal solid waste (MSW) and agriculture sectors contribute towards maximum waste generation in India. Thus, management of organic waste is very much essential with the increasing demand for energy. The present paper mainly focusses on reviewing waste to energy (WtE) potentials, its technologies, and the associated challenges. Different substrates are utilized through various technological options in India. Organic waste has good potential to attain sustainable energy yields with and without affecting the environment. A realistic scenario of WtE technologies and their challenges in line with the existing Indian condition is presented in this paper.
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http://dx.doi.org/10.1016/j.biortech.2017.08.159 | DOI Listing |
Sci Rep
March 2025
Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.
Agricultural waste (AW) presents significant environmental challenges if not effectively managed. Recycling AW as bio-organic fertilizers (BIOs) offers a sustainable solution, improving soil health, reducing dependence on chemical fertilizers, and stimulating crop growth. This study investigated the effectiveness of BIOs generated from AW composted with plant growth-promoting rhizobacteria (PGPR), including Enterobacter sp.
View Article and Find Full Text PDFJ Hazard Mater
March 2025
State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China. Electronic address:
Engineering high-performance N-doped carbon catalysts for peroxymonosulfate (PMS) activation and elucidating their activation mechanism are crucial for the degradation of emerging pollutants. In this study, we propose a novel self-template carbonization strategy (NSCS) based on a N-containing conjugated microporous polymer (NCMP, poly(triphenylamine)) to fabricate high-performance N-doped porous carbon catalysts. Owing to the unique N-mediated catalytic sites within the confined micropores of the NCMP precursor, the NSCS approach enables the investigation of reactive oxygen species evolution and their formation mechanisms as carbonization temperature increases from 200 to 1400 °C.
View Article and Find Full Text PDFJ Hazard Mater
March 2025
College of Energy, Xiamen University, Xiamen 361102, PR China; Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China.
This study addresses the critical challenge of safe disposal and resource utilization of pig waste from intensive farming by investigating its pyrolysis behavior, product mechanisms, and heavy metal immobilization. The pyrolysis process was divided into four distinct stages, with kinetic parameters determined using the model-free FWO and KAS methods, ensuring accuracy without prior assumptions, complemented by the master plot method to elucidate reaction mechanisms. The optimal kinetic models identified as f(α)=4α, f(α)=3(1-α)[-ln(1-α)], f(α)=3α, f(α)=2α.
View Article and Find Full Text PDFWater Sci Technol
March 2025
Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, Jiangsu Environmental Engineering Technology Co. Ltd, Jiangsu Environmental Protection Group Co., Ltd, Nanjing 210019, China.
A novel integration of the electrochemical process with electrodialysis and electro-oxidation (IEDEO) was designed for the effective pretreatment of chlorpyrifos manufacturing wastewater, with high concentrations of both salts and organic compounds. The effects of operating parameters including initial pH and constant voltage on the IEDEO process performance were investigated. The IEDEO process showed excellent performance for the simultaneous removal of bio-refractory organics and inorganics in the chlorpyrifos wastewater.
View Article and Find Full Text PDFWater Sci Technol
March 2025
School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China E-mail:
The production of short-chain fatty acids (SCFAs) through anaerobic fermentation is a significant strategy for the resource utilization of excess sludge (ES). However, the limitations of low temperatures and slow ES hydrolysis rates have resulted in less than optimal volatile fatty acid (VFA) accumulation. This study reports a new method for improving ES low-temperature anaerobic fermentation for VFA production using peracetic acid (PAA) pretreatment and elucidates the underlying mechanisms.
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