Treatment agent for textile dyeing waste water

Abstract

A treating agent for the sewage generated by fabric printing and dyeing is prepared from active bentone, active palygorskite clay, aluminum polychloride and polyacrylamide through pre-treating, proportional mixing, and stirring to obtain powder.

Description

Textile printing and dyeing wastewater treatment agent Technical field: The invention relates to wastewater treatment, in particular to a textile printing and dyeing wastewater treatment agent. Background technique: At present, textile printing and dyeing wastewater treatment technologies include physical and chemical methods, biochemical methods, electrochemical methods, chemical methods and photochemical methods, among which biochemical methods are the main ones, and some chemical methods are also connected in series, which is basically the same in foreign countries. But so far, although various treatment technologies have their own characteristics and limitations for the treatment of textile printing and dyeing wastewater, their effects are different. Especially in recent years, with the development of chemical fiber fabrics, the rise of imitation silk and the finishing of printing and dyeing With the advancement of technology, PVA pulp, rayon alkali hydrolyzate (mainly...

AI Technical Summary

Problems solved by technology

1. Selected raw materials: calcite, zeolite, attapulgite, bentonite and bauxite. Although they have been beneficiated and called "concentrate", they are actually roughed and their grades are not high;

2. The activity of zeolite, attapulgite and bentonite cannot be improved or the activity is not greatly improved by calcination without acidification and other treatments; the same is true for calcite; only bauxite has an effect, but its proportion smaller

3. Send the non-metallic minerals calcite, zeolite, attapulgite, bentonite and bauxite into the calciner for calcination according to a certain ratio. Most of the minerals have been melted, and the original structure is completely destroyed, so that another new phase mineral is formed. It is impossible to use the original mineral adsorption and other characteristics, which will reduce its effect on water purification.

It is impossible to use raw mineral adsorption and other properties, but it may reduce its effect on water purification treatment

4. The grinding fineness of more than 600 meshes does not improve the purification effect of "ultrafine water quality improvement powder", but increases the production and processing costs