亚洲
之前我们为大家介绍过了废水的一些基本特征以及危害，大家都知道，印染行业的废水以有机污染为主，成分比较复杂，而且它的可生化性普遍比较差，目前主要的处理方法以生物处理法为主，同时辅助一些预处理和物理、化学的深度处理。今天我们主要来讲一下治理的几种方法，使用不锈钢过滤网，帮助我们净化受到污染的水源。废铬液处理：在采用印花工艺的印染厂中，印花滚筒镀筒时要使用重铬酸钾等物质，滚筒剥铬时会产生铬污染，这些含铬的废水必须要进行单独处理，以控制铬的污染。中和：印染废水的pH值很高，除了使用调节池进行均化之外，一般还要设置一个中和池，主要对废水的pH值进行处理，使其满足后续生产工艺的需求。调节：印染废水的处理流程中通常都会设置调节池，其作用是均化水质、水量，防止纤维屑、浆料物质等沉淀于池底，池内一般使用水力、空气或机械设备来进行搅拌，水力的停留时间为7小时左右。染料浓脚水预处理：染色换品种的时候排放出的染料废水数量少，但是浓度很高，要对这一部分的废水进行单独处理，可以减少废水的浓度。
Before we introduce the basic characteristics of the wastewater and harm, as everybody knows, printing and dyeing industry wastewater is given priority to with organic pollution, the composition is complicated, and it can be less biological sex is generally, the main processing method is given priority to with biological treatment, and some pretreatment and the depth of the physical and chemical processing. Today we mainly talk about several methods of governance, the use of stainless steel filter, to help us purify polluted water.
Waste chromium liquid treatment: in the printing process of the printing and dyeing factory, the printing drum plating cylinder to use potassium dichromate and other substances, chromium stripping cylinder will produce chromium pollution, these chromium containing wastewater must be treated separately to control the pollution of chromium. Neutralization: Printing and dyeing wastewater has a high pH value. In addition to using the regulating pool for homogenization, it is generally necessary to set up a neutralization pool, mainly treating the pH value of the wastewater, so that it can meet the needs of the subsequent production process. Regulation: printing and dyeing wastewater treatment process is usually set up a regulation pool, its role is to equalize the water quality and quantity, to prevent fiber chips, slurry materials and other precipitation at the bottom of the pool, the pool generally uses hydraulic, air or mechanical equipment to stir, the residence time of hydraulic is about 7 hours. Dye thick foot water pretreatment: when dyeing for varieties, the amount of dye wastewater discharged is small, but the concentration is very high. To treat this part of wastewater separately, the concentration of wastewater can be reduced.