棉染色残液补加量及其洗涤废水中染料回用限值的测定  

Cotton dyeing residue replenishment and determination of reuse limits for dyes in washing wastewater

作　　者：李艳 龚龑 王然[2] 王刚[2] 汪芳[3] LI Yan;GONG Yan;WANG Ran;WANG Gang;WANG Fang(College of Textile and Clothing,Xinjiang University,Urumqi,Xinjiang 830046,China;College of Materials Design and Engineering,Beijing Institute of Fashion Technology,Beijing 100025,China;Zhejiang Industry Polytechnic College,Shaoxing,Zhejiang 312000,China)

机构地区：[1]新疆大学纺织与服装学院,新疆乌鲁木齐830046 [2]北京服装学院材料设计与工程学院,北京100025 [3]浙江工业职业技术学院,浙江绍兴312000

出　　处：《毛纺科技》2024年第5期18-25,共8页Wool Textile Journal

基　　金：新疆维吾尔自治区重大科技计划项目(2020A03002-4);新疆生产建设兵团科技攻关计划项目(2019AB014)。

摘　　要：印染行业中传统的印染废水集中处理方式增加了废水回用难度,且存在一定的废水过度处理问题。为了探索印染废水分质处理方式,提升其重复利用率,对M型染料活性红195染色残液补加染料和助剂并进行废水回用,当染色后残液中染料、盐、碱补加量为首次用量的97.5%、25%、25%时,回用废水所染织物染色色差小于0.6,且干、湿耐摩擦色牢度和耐洗色牢度未发生变化,节约了染料、助剂及水资源。将末道洗涤废水回用至初道水洗环节,在不影响织物质量的前提下,探究满足回用条件的洗涤废水中染料含量的限值。结果表明:废水中染料质量浓度不超过100 mg/L可回用至1%(owf)染色后的初道水洗环节;废水中染料质量浓度不超过450 mg/L可回用至2%(owf)染色后的初道水洗环节,且水洗后织物与标样相比色差低于0.6,干、湿耐摩擦色牢度及耐洗色牢度均与标样保持一致。In the printing and dyeing industry,the traditional printing and dyeing wastewater treatment is centralized,which increases the difficulty of wastewater reuse,and there is a certain amount of wastewater over-treatment.In order to explore the printing and dyeing wastewater quality treatment to improve its reuse rate,the M-type reactive red 195 dyeing residue replenishment of dyes and additives in wastewater was studied and reused,when the amount of dye,salt and alkali added in the residual liquid after dyeing is 97.5%,25%and 25%of the initial amount,the dyeing color difference of the fabric dyed by the recycled wastewater is less than 0.6,and the color fastness to dry and wet friction and washing does not change,saving dyes,additives and water resources.The final washing wastewater was reused to the first washing process,and the limit value of the dye content in the washing wastewater to meet the reuse conditions was investigated without affecting the quality of the fabrics.The results show that the mass concentration of dye in wastewater was not more than 100 mg/L,which could be reused to the first washing process after dyeing(owf).The mass concentration of the dye in the wastewater is not more than 450 mg/L,which can be reused to the initial washing process after 2%(owf),and the color difference between the washed fabric and the standard sample is less than 0.6,and the color fastness to dry and wet friction and washing are consistent with the standard sample.

关 键 词：棉织物 残液补加回用 洗涤废水回用 直接回用 污染指标 

分 类 号：TS190.3[轻工技术与工程—纺织化学与染整工程]