Biogas recirculation for simultaneous calcium removal and biogas purification within an expanded granular sludge bed system treating leachate

• Published in: Bioresource technology Vol. 173; pp. 317 - 323
• Main Authors: Luo, Jinghuan, Lu, Xueqin, Liu, Jianyong, Qian, Guangren, Lu, Yongsheng
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier 01.12.2014
• Subjects: Applied sciences; Biofuel production; Biofuels; Biogas; Biological and medical sciences; Biological Oxygen Demand Analysis; Bioreactors; Biotechnology; Calcium; Calcium - isolation & purification; Calcium carbonate; carbon dioxide; Carbonation; Energy; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; Hydrogen-Ion Concentration; Industrial applications and implications. Economical aspects; Methane; municipal solid waste; Pollution; Purification; Sewage; Sludge; Solid Waste; Wastes; EGSB; Calcium removal; MSW leachate; Purification; Calcium; Biogas purification; Biogas recirculation; Biogas; Recirculation; Wastes; Leachate; Granular bed

Biogas, generated from an expanded granular sludge bed (EGSB) reactor treating municipal solid waste (MSW) leachate, was recirculated for calcium removal from the leachate via a carbonation process with simultaneous biogas purification. Batch trials were performed to optimize the solution pH and imp...