Assessment and characterization of solid and hazardous waste from inorganic chemical industry: Potential for energy recovery and environmental sustainability.

Autor: Trivedi K; Department of Environmental Science and Engineering, Marwadi University, Rajkot, 360003, Gujarat, India; Quality Assurance & Environment Department, Nirma Limited, Bhavnagar, 364313, Gujarat, India., Marvaniya K; CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India., Dobariya P; CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India., Pathak KC; Quality Assurance & Environment Department, Nirma Limited, Bhavnagar, 364313, Gujarat, India., Patel K; CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India., Sutariya B; CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India., Sharma A; Department of Agriculture, Marwadi University, Rajkot, Gujarat, 360003, India. Electronic address: archana.sharma@marwadieducation.edu.in., Kushwaha S; CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India. Electronic address: shilpik@csmcri.res.in.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2024 Sep; Vol. 367, pp. 122036. Date of Electronic Publication: 2024 Aug 01.
DOI: 10.1016/j.jenvman.2024.122036
Abstrakt: Rapid global urbanization and economic growth have significantly increased solid waste volumes, with hazardous waste posing substantial health and environmental risks. Co-processing strategies for industrial solid and hazardous waste as alternative fuels highlight the importance of integrated waste management for energy and material recovery. This study identifies and characterizes solid and hazardous industrial wastes with high calorific values from various industrial processes at Nirma Industries Limited. Nine types of combustible industrial wastes were analyzed: discarded containers (W1), plastic waste (W2), spent ion exchange resins from RO plants (W3), sludge from effluent treatment in soap plants (W4), glycerine foot from soap plants (W5), rock wool puff material (W6), fiber-reinforced plastic waste (W7), spent activated carbon (W8), and spent cartridges from reverse osmosis plants (W9). Physical characterization, proximate and ultimate analysis, heavy metal concentration evaluation, and thermogravimetric analysis were conducted to assess their properties, revealing high calorific values exceeding 2500 kcal/kg. Notably, W1 and W2 exhibited the highest calorific values (∼10,870 kcal/kg), followed by W6 and W8 (∼6000 kcal/kg) and W9 (∼8727 kcal/kg). Safe heavy metal levels are safe, and high calorific values support the prospects of energy recovery and economic and environmental benefits, reducing landfill reliance and enhancing sustainable waste management.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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