摘要：

烧杯搅拌实验和混凝前后水样中有机污染物的GC/MS分析结果表明,焦化废水中有机污染物的混凝去除机理主要是络合沉降和絮体吸附。各有机污染物的去除率与其分子结构密切相关,易在氢氧化物絮体上吸附或具有络合基团且无空间位阻的有机污染物,易被混凝去除。

关键词: 焦化废水, 混凝, 有机污染物, 去除机理

Abstract:

The results of jar stirring test and the concen tration change of each organic compound detected by GC/MS analysis in source and after-treatment wastewater suggest that organic pollutants are mainly remove d by complex-sedimentation and floc-adsorption mechanisms. The removal rate of each organic pollutant is highly depending on its molecular structure. Generall y, organic pollutant having a strong ability to adsorb on hydroxide flocs or hav ing a complex function group without steric hindrance is easy to be removed.

Key words: coking-plant wastewater, coagulation, pollutant, re moval mechanisms

中图分类号: 

• X784