Toward zero waste to landfill: an effective method for recycling zeolite waste from refinery industry

2nd International Conference on Energy Materials and Applications

材料科学;能源学

Homchuen, K.^1 ; Anuwattana, R.^2 ; Limphitakphong, N.^3 ; Chavalparit, O.^1,3

Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok

10330, Thailand^1

Environment and Resources Department, Thailand Institute of Scientific and Technological Research, Pathumthani

12120, Thailand^2

Research Unit of Environmental Management and Sustainable Industry, Faculty of Engineering, Chulalongkorn University, Bangkok

10330, Thailand^3

关键词: Alkaline solutions;    Chemical process;    Chemical solutions;    Chloride adsorption;    Electrochemical process;    Landfill wastes;    Optimum conditions;    Refinery industry;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/222/1/012006/pdf
DOI  :  10.1088/1757-899X/222/1/012006

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

One-third of landfill waste of refinery plant in Thailand was spent chloride zeolite, which wastes a huge of land, cost and time for handling. Toward zero waste to landfill, this study was aimed at determining an effective method for recycling zeolite waste by comparing the chemical process with the electrochemical process. To investigate the optimum conditions of both processes, concentration of chemical solution and reaction time were carried out for the former, while the latter varied in term of current density, initial pH of water, and reaction time. The results stated that regenerating zeolite waste from refinery industry in Thailand should be done through the chemical process with alkaline solution because it provided the best chloride adsorption efficiency with cost the least. A successful recycling will be beneficial not only in reducing the amount of landfill waste but also in reducing material and disposal costs and consumption of natural resources as well.