高COD二噻烷生产废水预处理研究  

Pretreatment of Dithiane Wastewater with High COD

作　　者：王元芳 孙寿武 马淑敏 耿启金[2] WANG Yuan-fang;SUN Shou-wu;MA Shu-min;GENG Qi-jin(Weifang University,261061 Weifang,China)

机构地区：[1]潍坊学院化学化工与环境工程学院,山东潍坊261061 [2]潍坊学院,山东潍坊261061

出　　处：《潍坊学院学报》2020年第2期27-31,共5页Journal of Weifang University

基　　金：潍坊市科学技术发展计划项目(2019GX010);潍坊高新区科技惠民计划项目(2019KJHM14);潍坊学院博士科研基金(2017BS09);山东省自然科学基金(ZR2017MB057)。

摘　　要：为了提高某制药厂二噻烷生产废水的可生化性,对二噻烷生产废水应用Fenton氧化法与混凝法进行预处理实验,研究了H2O2投加量、反应时间、Fenton药剂量比,混凝剂投加量等因素与COD去除率的关系。经实验数据推测最佳反应条件是:H_2O_2(30%)投加量是100mL·L^(-1),反应时间是6h,FeSO_4·7H_2O投加量是39.25g·L^(-1),H_2O_2氧化法的COD去除率可达53.8%,Fenton氧化COD去除率可达62%,并用PAC作为混凝剂对氧化后废水进行混凝实验,Fenton氧化-PAC混凝联合对COD的去除率可提升至69.2%。H_2O_2氧化-PAC混凝联合工艺对COD去除率可提升至70.7%。实验结果表明,在实际工厂二噻烷生产废水生化处理的预处理手段中,Fenton氧化法—PAC混凝与H_2O_2氧化法—PAC混凝联合工艺均可应用。In this study,Fenton oxidation and coagulation were used to pretreat dithiane industrial wastewater in order to improve the biodegradability of dithiane industrial wastewater in a pharmaceutical factory.In addition,the dosage of H2O2,dosage of FeSO)4·7 H2 O,optimum time,ratio of Fenton,dosage of coagulant were investigated for removing COD.The optimum reaction conditions obtained from the study were 100 mL·L-1 of H2O2,39.25 g·L-1 of FeSO4·7 H2 O,and 6 h of reaction time.The removal rate of COD was up to 53.8%by oxidation using H2O2,and the removal rate of COD reached 62%by Fenton oxidation.Furthermore,PAC was used as coagulant and the removal rate of COD can be increased to 69.2%by Fenton oxidation-PAC coagulation.The removal rate of COD was increased to 70.7%by H2O2 oxidation-PAC coagulation.Therefore,Fenton oxidation combined with coagulation or H2O2 oxidation combined with coagulation were effective for the pretreatment of dithiane wastewater.

关 键 词：二噻烷废水 COD去除 氧化法 混凝 

分 类 号：TU20[建筑科学—建筑设计及理论]