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.
出处
《过程工程学报》
CAS
CSCD
北大核心
2001年第1期90-94,共5页
The Chinese Journal of Process Engineering
关键词
草酸盐
厌氧降解
反应条件
氧化铝
oxalate
anaerobic degradation
reaction conditions
