DT-F 609加脂剂生物降解性研究  

Study on the Biodegradability of DT-F 609 Fatliquor

作　　者：王学川[1,2] 任永强[1,2] 强涛涛[1,2] 翟丽媛[1,2] 晏岚 黄良莹 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]陕西科技大学轻化工助剂教育部重点实验室,陕西西安710021 [3]德美亭江精细化工有限公司,广东佛山528300

出　　处：《皮革科学与工程》2009年第4期40-44,共5页Leather Science and Engineering

基　　金：国家科技支撑计划项目(2006BAC02A09);国家自然科学基金(20876090)

摘　　要：DT-F609加脂剂作为基质，采用COD30法、呼吸曲线法、BOD5／CODcr法对其生物降解性进行了研究。结果表明，当基质质量浓度为0～1000mg／L时，随着基质质量浓度的增大，基质的生物降解性逐渐变好，当pH为7．2，污泥质量浓度为1000mg/L，不外加NaCl，基质质量浓度为750mg／L和1000mg／L时，基质的最终生物降解率分别为95．2％和96．5％。pH、盐度、污泥浓度对基质的生物降解性均有明显影响。经试验筛选，基质生物降解的最佳pH为11，盐度为0．5％，污泥质量浓度为1500—2000mg/L。The methods of COD30, respiratory curve and BODs/CODcr were adopted to evaluate the biodegradability of DT-F 609 fatliquor. The results showed that when the range of substrate concentration was 0 -1000 mg/L, the biodegradability of the substrate gradually becomes better with the increase of substrate concentration. When the pH was 7.2 and the dosage of unacclimated activated sludge was 1000 mg/L and the concentrations of the substrate were 750 mg/L and 1000 mg/L, the substrate was biodegradable and the biodegradation rate was up to 95.2% and 96.5%, respectively. Moreover, the effect of pH, inoculation amount and salinity on the biodegradability of the substrate was obvious. Through experiments, the optimum conditions for the substrate to be degraded could be listed as follows ： pH 11, salinity 0. 5% and the range of inoculation amount 1500-2000 mg/L.

关 键 词：加脂剂 生物降解 COD30法 呼吸曲线 

分 类 号：TS529.4[轻工技术与工程—皮革化学与工程]