摘要
印染废水具有成分复杂、色度高、有毒物质多、处理难度大的问题,采用絮凝剂进行处理是工程中最普遍的方法。以常武地区某印染废水为研究对象,通过对无机与有机混凝剂复配,处理常武地区某印染废水,探讨pH值条件、絮凝剂投加量、絮凝剂种类及复配方式对COD_(Cr)去除效果的影响。试验结果表明,PAC、PAFC和PAFCS三种无机混凝剂对于COD_(Cr)去除率随着投加量的增加而表现出先增加后降低的趋势。pH值对PFCAS的影响并不显著,PAFCS在碱性范围内有较大的适用性。常温下,pH值9,PAFCS与PAMC复配,投加量分别为100 mg/L和4 mg/L,COD_(Cr)去除率可达71.3%,该方法处理印染废水具有显著的效果。
The treatment of printing and dyeing wastewater poses challenges due to its complex composition,high chromaticity,abundance of toxic substances,and difficulty in treatment.The utilization of coagulants is the prevalent approach in engineering.This study focuses on a specific printing and dyeing wastewater found in the ChangWu area.It investigates the impact of pH conditions,coagulant dosage,coagulant types,and compounding methods on the removal efficiency of COD_(Cr)(Chemical Oxygen Demand).The test results indicate that the three inorganic coagulants PAC,PAFC,and PAFCS show a trend of increasing COD_(Cr)removal efficiency with increasing dosage,followed by a decrease.The influence of pH on PFCAS is not significant,and PAFCS exhibits greater applicability within an alkaline range.At room temperature,at a pH of 9,the co-treatment of PAFCS and PAMC at dosages of 100 mg/L and 4 mg/L respectively,achieves a COD_(Cr)removal rate of 71.3%.This method has a significant effect on treating dyeing wastewater.
作者
董亮亮
王玲玉
李烨菲
胡悦
吴炎
Dong Liangliang;Wang Lingyu;Li Yefei;Hu Yue;Wu Yan(Changda Lvheng Environmental Engineering Co.,Ltd.,Changzhou 213164,China;Changzhou Municipal Engineering Design and Research Institute Co.,Ltd.,Changzhou 213164,China;Department of Architecture and Environmental Engineering,Changzhou University Huaide College,Taizhou 214500,China)
出处
《山东化工》
CAS
2024年第14期273-275,278,共4页
Shandong Chemical Industry
