天津工业大学学报2017，Vol.36Issue(5)：64-67,4.DOI:10.3969/j.issn.1671-024x.2017.05.013
混凝沉淀法预处理种衣剂废水工艺优化
Process optimization of coagulation in pretreatment of seed coating wastewater
摘要
Abstract
According to the characteristics of the seed coating wastewater(SCW)which has high chroma and high concentra-tion of organics,and through the analysis of the water quality,the coagulation process by using three kinds of co-agulants such as PAC,FeCl3and Al2(SO4)3was severally applied to treat SCW for improving its biodegradabil-ity.The Zeta potential,the removal efficiencies of COD and other indicators after treatment were evaluated.The results showed that the effect of PAC/PAM was favourable.During the best coagulation process(pH value of 8.0-9.0,PAC dosage of 1.5 g/L and PAM dosage of 1.5 mg/L), the removal efficiencies of COD and chroma were 81.7% and 56.3%, respectively. And the ratio of BOD5/COD was improved from 0.28 to 0.43, implying the biodegradability of SCW was improved.关键词
种衣剂废水/可生化性/混凝沉淀/预处理Key words
seed coating wastewater/biodegradability/coagulation/pretreatment分类
化学化工引用本文复制引用
文晨,郑兆晴,徐晓漪..混凝沉淀法预处理种衣剂废水工艺优化[J].天津工业大学学报,2017,36(5):64-67,4.基金项目
天津北方科润种衣剂有限公司项目"种衣剂废水处理关键技术研究与工程设计"(15021030166) （15021030166）
