基于分质回用的印染生产过程节水方法

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清华大学辅仁网/2017-07-07

基于分质回用的印染生产过程节水方法

周律, 徐昆, 邱照景

清华大学环境学院, 北京 100084

Water conservation approaches in printing and dyeing production processes based on wastewater treatment and graded reuse

ZHOU Lu, XU Kun, QIU Zhaojing

School of Environment, Tsinghua University, Beijing 100084, China

摘要:

输出: BibTeX | EndNote (RIS)

摘要针对目前棉针织印染生产废水回用率低的问题，结合间歇式生产及排放废水水质、水量变化大等特征，建立了企业级数据库管理系统。数据库基于企业原有信息采集系统，并采用实时并行运算技术分析数据，利用COD浓度、电导率等指标对企业废水进行分类排放与回收来实现水资源调度。以企业实际订单生产的排水为分析对象，通过对废水的调度及回用，实现了总废水排放量的减少和废水回用率的提高。对国内某典型棉针织印染企业进行案例研究，结果表明：该系统可以减少38.72%的生产耗水，节水效益显著，同时能够降低排放废水的水质和水量波动，为后续水处理工艺稳定运行起到了良好的作用。

关键词 ：印染废水,间歇生产,分质回用,数据库,节水

Abstract：A water conservation database was developed to improve the wastewater reuse rate in printing and dyeing production for batch production processes having drastic fluctuations in wastewater flowrate and pollutant concentrations. The water conservation data was analyzed using a real-time parallel computations based on the textile company's information collection system. The wastewater quality parameters such as the chemical oxygen demand (COD) and conductivity were monitored during wastewater treatment to evaluate the reuse potential for water resource management. A scheduling and reuse system using the production processes as the analysis object was developed to improve the total wastewater discharge and reuse rates. A typical knit cotton dyeing enterprise was used for a case analysis. The results show that the system reduces water consumption by 38.72% and also reduces the quality fluctuations and wastewater flowrate. This has a positive effect on the operating stability of the water treatment processes.

Key words：textile wastewater batch production graded reuse database water conservation

收稿日期: 2016-05-05 出版日期: 2017-03-25

ZTFLH:

X703.1

引用本文:

周律, 徐昆, 邱照景. 基于分质回用的印染生产过程节水方法[J]. 清华大学学报（自然科学版）, 2017, 57(3): 331-336.
ZHOU Lu, XU Kun, QIU Zhaojing. Water conservation approaches in printing and dyeing production processes based on wastewater treatment and graded reuse. Journal of Tsinghua University(Science and Technology), 2017, 57(3): 331-336.

链接本文:

http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2017.26.018或 http://jst.tsinghuajournals.com/CN/Y2017/V57/I3/331

图表:

图1 不同温度条件下印染废水处理效果

图2 针织印染企业数据库系统构成

表1 某针织印染企业一个生产车间某日订单信息

图3 废水分质处理与回用系统

图4 棉针织印染各阶段用水情况

表2 废水分质回用对比表

表3 废水分质回用效益分析

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