Fenton氧化及微电解法对栲胶废水可生化性的影响  

Effect of Fenton oxidation and micro- electrolysis methods on tannin wastewater biodegradability

作　　者：丁绍兰[1] 贾思静 汪晶[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021

出　　处：《中国皮革》2016年第1期10-14,共5页China Leather

摘　　要：研究Fenton高级氧化和微电解对改善几种皮革栲胶溶液可生化性的效果，考察主要参数对处理效果的影响。3种栲胶溶液在Fenton氧化条件下反应的最佳时间是40～60min，最佳pH值是3，COD去除率大于70％，BOD，／CODCr，大于0．36。3种栲胶溶液在微电解条件下反应的最佳时间是40～60min，最佳pH是4，COD去除率大于66％，可生化性也大大提高，荆树皮栲胶和栗木栲胶溶液可生化性超过了0．4，说明微电解反应预处理栲胶溶液效果很好。对Fenton氧化和微电解对栲胶溶液处理效果进行对比，Fenton氧化的COD去除率高于微电解处理，而可生化性低于微电解反应。Fenton advanced oxidation and micro - electrolysis methods were used to improve the biodegradability of leather tan- nin, and the main factors of treatment effect were investigated. The best time of three kinds of extracts solution under the condition of Fenton oxidation reaction is 40 - 60min, optimum pH is 3, COD removal rate is more than 70%, BODJCODcr is more than 0. 36. Under micro - electrolysis reaction, the best reaction time of three extracts solution is 40 to 60 rain, optimum pH is 4, COD removal rate is more than 66%. Biodegradability is also greatly improved, wattle extract and chestnut tannin solution＇s biodegrad- ability are more than 0. 4, which shows that the pretreatment effect of micro - electrolysis reaction to extract solution is very good. Compared the results of Fenton oxidation and micro - electrolysis of tannin solution treatment, COD removal rate of Fenton oxida- tion is higher than that of micro - electrolysis treatment, however, the biodegradability is lower than that of micro - electrolysis reaction.

关 键 词：FENTON氧化 微电解 栲胶溶液 COD去除率 BOD5/CODcr 可生化性 

分 类 号：X794[环境科学与工程—环境工程]