摘要
采用破乳-芬顿氧化预处理废矿物油废水。通过考察多种破乳剂对矿物油废水的破乳效果,确定了氯化钙-PAC组合投加的破乳方式,并且对影响破乳效果的因素进行了讨论;通过改变p H值、芬顿试剂投加量、投加比例、投加方式等因素,考察了对芬顿氧化的处理效果的影响。实验证明:矿物油废水在物化预处理过程中,COD由36 270 mg/L降至4 094 mg/L,COD去除率达88.71%,氨氮、硫化物等其他指标均符合生化要求,可直接进入生化系统。
The mineral oil wastewater were pretreated by demulsification-Fenton oxidation.By investigating the demulsification effect of various demulsifiers on mineral oil wastewater,the demulsification method of calcium chloride-PAC combination was determined,and the factors affecting the demulsification effect were discussed.The treatment effect on the Fenton oxidation was investigated by changing the p H value,the dosage of Fenton reagent,the dosage ratio and the dosage method.The results show that COD is reduced from 36 270 to 4 094 mg/L in the process of mineral oil wastewater physico-chemical pretreatment,COD removal rate is 88.71%,and other indexes,such as ammonia nitrogen and sulfide,are in accordance with biochemical requirements,and the teated waste water can enters into the biochemical system directly.
出处
《煤炭与化工》
CAS
2017年第10期71-75,共5页
Coal and Chemical Industry
关键词
矿物油废水
破乳
芬顿氧化
预处理
mineral oil wastewater
demulsification
Fenton oxidation
pretreatment
作者简介
么瑞静（1990-），女，河北保定人，助理工程师。E—mail：1257849497@qq．com
