期刊论文

中文

湖南生态科学学报

2095-7300

2017

4

3

15-18

10.3969/j.issn.2095-7300.2017.03-015

湖南省自然科学基金（编号:2015JJ2018）；

本校为第一机构

为充分利用剩余污泥,利用碱法从污水处理厂二沉池取回的沉降污泥提取生物絮凝剂,以浊度及COD去除率参考,通过生物絮凝剂的投加量(A)、搅拌速度(B)、搅拌时间(C)、污泥浓度(D)4个因素进行正交试验,结果表明:浊度去除试验中,正交表最大去除率63.21%,最佳组合A2B1C3D1浊度去除率可达66.71%,COD去除率为61.13%;COD去除试验中,正交表最大去除率71.20%,最佳组合A3B3C2D3COD去除率可达75.57%,浊度去除率为60.48%.说明活性污泥提取生物絮凝剂具有较理想的絮凝效果,可以推广应用.表4,参15.

In order to make full use of the residual sludge,biological flocculant was extracted by alkali method from the secondary settling tank of the sewage treatment plant,referenced by the removal rate of urbidity and COD,through orthogonal test with the dosage of flocculant（A）,stirring speed（B）,stirring time（C）,and sludge concentration（D）.The results showed that in orthogonal test of the turbidity removal experiment,the maximum removal rate was 63.21% and the best combination of A2、B1、C3、D1 turbidity removal rate could reach 66.71% and th...