涤纶织物碱减量工艺废水处理研究  

High-Rate Treatment of Polyester Fabric Alkali-Peeling Process Wastewater

作　　者：杨平平[1] 常宏宏[2] 

机构地区：[1]山西工程职业技术学院,030009 [2]太原理工大学化学化工学院,山西太原030024

出　　处：《水处理技术》2016年第12期96-98,102,共4页Technology of Water Treatment

摘　　要：针对某纺织工业涤纶织物碱减量工艺废水问题，采用酸化-沉淀及生物处理系统对废水进行处理。在酸化-沉降实验中，在废水中苯二甲酸（TA）质量浓度从19．8g／L减少到2．75g／L，去除率迭到86％，很大程度上减少了生物处理系统的负载，但是通过酸化-沉淀后废水中的TA使生物降解性能明显减弱，BOD5／COD量从0.37-0．40减少到0．27-0．31。在生物处理实验中，设定进水COD为2109mg／L、TA质量浓度为524mg／L，出水COD为63．17mg／L、TA质量浓度为5．14mg／L，去除率分别超过97％、99％。通过实验表明，在需氧型混合膜生物反应器（HMBR）中，生物降解TA物质达到97％；在厌氧型水解酸化生物反应器（HABR）中，生物降解TA仅达到2．3％。同时，在HABR和HMBR反应器中，COD除去率分别约为29．8％和67％。The polyester fabric alkali-peeling process wastewater was a new kind of textile industrial wastewater. Acidification-sedimentation and biological treatmentsystem were employed to treat the wastewater. In acidification-sedimentation experiment, TA in wastewater decreased sharply from 19.8 g/L to 2.75 g/L with a removal rate of 86%, which greatly reduced the load of following biological treatment. The biodegradability of wastewater decreased after TA was recovered from raw wastewater by acidification-sedimentation. The value of BOD5/COD decreased from 0.37 -0.40 to 0.27 -0.31. In biological treatment experiment, when the influent COD was 2109mg/L and TA was 524 mg/L, the total removal rate of COD and TA were beyond 97% and 99%, respectively. It came to a conclusion that TA was easily biodegraded in aerobic HMBR and poorly biodegraded in anaerobic HABR. Only 2.3% TA was biodegraded in anaerobic HABR, while up to 97% TA was biodegraded in aerobic HMBR. However, about 29.8% and 67% COD were removal in HABR and HMBR, respectively.

关 键 词：苯二甲酸 废水处理 酸化-沉淀 生物降解 

分 类 号：X703.1[环境科学与工程—环境工程]