期刊论文

中文

安全与环境学报

1009-6094

2015

15

4

191-196

10.13637/j.issn.1009-6094.2015.04.041

湖南省教育厅优秀青年项目（13B009） 湖南省高校产学研合作示范基地项目（湘教通[2014]239号）

本校为第一机构

以城市污水处理厂脱水干污泥为原料,以浓硫酸为活化剂,制备活化剩余污泥吸附剂,采用正交试验法考察了Pb~(2+)初始质量浓度、初始pH值、吸附温度、活化剩余污泥投加量对活化剩余污泥吸附性能的影响。结果表明,活化剩余污泥对Pb~(2+)的最佳吸附条件为Pb~(2+)初始质量浓度60 mg/L、初始pH值5、活化剩余污泥投加量100 mg、吸附温度288 K,影响从高到低的各因素为Pb~(2+)初始质量浓度、吸附温度、初始pH值、活化剩余污泥投加量。采用Langmuir、Freundlich、D-K-R吸附等温方程对不同温度下的吸附平衡试验数据进行拟合。Langmuir吸附等温方程可以较好地描述活化剩余污泥对Pb~(2+)的吸附平衡过程。其吸附...

The present article is aimed at a study of the sewage adsorption feature for the activating sewage sludge by using the activated sludge with sulphuric acid absorpting function. For the said demand,we have first of all made an exploration of the factors that may affect the adsorptive process,such as the initial Pb2 ＋mass concentration,the adsorption temperature,the initial p H and the dosage of the activation sewage sludge by using the orthogonal experiment（ L16（ 45））. Secondly,we have worked out the kinetic data by means of the pseudo firs...