草酸盐厌氧降解途径及其反应条件  

Anaerobic Degradation Route of Oxalate and the Reaction Conditions

作　　者：于杨 沈颐身[2] 叶树峰[3] 

机构地区：[1]山西太原亚乐士新技术有限公司,山西太原030009 [2]北京科技大学能源与环境工程研究所,北京100083 [3]中国科学院化工冶金研究所,北京100080

出　　处：《过程工程学报》2001年第1期90-94,共5页The Chinese Journal of Process Engineering

摘　　要：用厌氧消化法对氧化铝冶炼过程中产生的草酸盐废弃物进行处置. 实验结果表明，草酸盐可以转化成无害的甲烷和HCO3(，反应需在温和的条件下进行并辅以外来碳源. 底物浓度过高或pH值过高均会抑制草酸盐降解. 当底物浓度超过0.25 mol/L或pH(10时，草酸盐的降解完全停止. 外加碳源乙酸可以极大促进草酸盐的降解.To dispose the oxalate waste from the alumina refining process effectively and economically, the method of oxalate anaerobic digestion is presented. The results indicate that oxalate was converted to harmless methane and bicarbonate under anaerobic conditions. However, moderate conditions must be provided for oxalate degradation. When the oxalate concentration was over 0.25 mol/L or pH above 10, the oxalate degradation was totally inhibited. Acetate, as an external carbon source, is found to promote degradation.

关 键 词：草酸盐 厌氧降解 反应条件 氧化铝 

分 类 号：X758[环境科学与工程—环境工程] X172