混凝剂循环使用及化学混凝处理乳化废液的研究  

Study on treatment of waste emulsion by coagulant recycling and non-fully chemical coagulation

作　　者：费庆志[1] 许芝[1] 

机构地区：[1]大连铁道学院环境科学与工程系,大连116028

出　　处：《环境污染治理技术与设备》2004年第4期70-72,94,共4页Techniques and Equipment for Environmental Pollution Control

摘　　要：对乳化废液进行了不完全的化学混凝处理 ,优化出的混凝剂为PAC +PAM ,最佳条件为 :PAC ,1 0～ 2 0g/L ;PAM ,2 0mg/L ;pH ,6 5～ 8 5 ;混凝后的出水COD在 5 0 0～ 5 6 0 0mg/L之间 ,可以用来重新配制乳化液 ,性能指标达到国家规定要求 ;混凝产生的絮渣采用浓硫酸处理 ,每升乳化废液混凝产生的絮渣用 4 5mL浓硫酸 ,处理后回收油品 15mL/L ,混合液可循环使用处理乳化废液 ;将出水回用于配制新乳化液 ,实现了废水循环利用。Waste emulsion of O/W was treated by means of non fully chemical coagulation. The optimized coagulant was PAC+PAM. The best coagulating conditions were as following: PAC: 1.0～2.0 g/L; PAM: 20 mg/L; pH: 6.5～8.5. The COD of effluent after coagulation was 500～5600 mg/L. The effluent can be reused to prepare new emulsion. The coagula produced by coagulation of one liter of waste emulsion were treated by 4.5 mL concentrated sulfuric acid. After treatment, 15 mL/L oil was reclaimed. The mixing liquid can be recycled to treat waste emulsion.

关 键 词：混凝剂 乳化废液 废水处理技术 回收系统 机械工业 

分 类 号：X760.3[环境科学与工程—环境工程]