摘要：

以过氧化氢为氧化剂、聚二甲基二烯丙基氯化铵（PDM）为混凝剂对高含硫废水进行控制氧化处理，考察了混凝强化机制对脱硫效果的影响。结果表明，在PDM投加质量浓度为1.0 mg/L，初始pH为6，过氧化氢投加量为9 mL/L，反应时间为15 min的条件下，混凝强化体系中硫化物去除率达99.09%，单质硫产量为1 588.5 mg/L，较普通反应体系分别提高了1%和14%；SO₄^2-产量为209.69 mg/L，较普通体系降低了8%。

关键词: 含硫废水, 单质硫, 氧化历程, 混凝强化

Abstract:

Using peroxide as oxidant,and poly dimethyl diallyl ammonium chloride(PDM)as coagulant,controlled oxidation treatment has been used on the highly concentrated sulfur-bearing wastewater. The influences of coagulation enhancement mechanism on desulfurization effect are investigated. The results show that under the following conditions the mass concentration of PDM added is 1.0 mg/L,initial pH 6,peroxide dosage 9 mL/L and reaction time 15 min,the sulfide removing rate in the coagulation enhancement system reaches 99.09%,and elemental sulfur output is 1 588.5 mg/L,compared with ordinary systems,increasing by 1% and 14%,respectively. The SO₄^2- output is 209.69 mg/L,compared with ordinary systems,decreasing by 8%.

Key words: sulfur-bearing wastewater, elemental sulfur, oxidation process, coagulation enhancement

中图分类号: 

• X703.1