有机硅琥珀酸酯加脂剂的生物降解性研究  

Biodegradability of Silicone Succinate Fatliquor Agent

作　　者：王学川[1] 雒香[1] 贺宝元[1] 强涛涛[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》2011年第13期7-10,共4页China Leather

基　　金：国家自然科学基金项目(20876090);咸阳市科技计划项目(XK0909-3);陕西科技大学研究生创新基金

摘　　要：以有机硅琥珀酸酯(PMPS)加脂剂为基质,采用COD30法、呼吸曲线法和BOD5/CODCr法对其生物降解性进行了研究。试验结果表明:当基质浓度为0～1000mg/L时,随着基质浓度的增加,基质的生物降解性逐渐变好,当pH值为7.1,污泥质量浓度为1000mg/L,不外加NaCl,基质浓度为1000mg/L时,基质最终生物降解率为89%。盐度、pH、污泥浓度对基质的生物降解性均有明显影响。通过单因素法对微生物降解性的影响因素进行了优化,基质生物降解的最佳盐度为0.4%、pH值为10,污泥质量浓度为2000mg/L。The methods of COD30, respiratory curve and BODs/CODcr were adopted to evaluate the biodegradability of the anionic silicone （PMPS） fatliquor. The results show that when the range of substrate concentration is 0 - 1 000mg/L, the biodegrad- ability of the substrate gradually becomes better with the increase of substrate concentration. When the pH is 7.1, the sludge con- centration is 1 000mg/L and the concentrations of the substrate is 1 000mg/L, the substrate is biodegradable and the biodegrada- tion rate is up to 89%. Moreover, the effect of salinity, pH and the sludge concentration on the biodegradability of the substrate is obvious. The appropriate biodegradation conditions were optimized by single factor experiment： pH is 10 ,salinity is 0.4% and the range of inoculation amount is 2 000mg/L.

关 键 词：加脂剂 生物降解 COD30法 呼吸曲线法 BODs/CODcr 法 

分 类 号：X703[环境科学与工程—环境工程]