Printing and dyeing industry sewage treating agent and preparation method thereof

Abstract

The invention discloses a printing and dyeing industry sewage treating agent and a preparation method thereof. The printing and dyeing industry sewage treating agent is prepared from, by weight, 20-25 parts of diatomite, 0.5-2 parts of alpha-bromocinnamaldehyde, 1-5 parts of Boc-L-tert-leucine, 5-8 parts of calcium carbonate, 10-25 parts of coal gangue, 5-8 parts of tobacco stalk, 1-3 parts of sodium tartrate, 0.5-5 parts of (diphenylhydroxymethyl)pyrrolidine, 8-15 parts of fly ash, 5-10 parts of wormcast and 5-10 parts of ethylenediaminetetraacetic acid disodium magnesium salt. According to the printing and dyeing industry sewage treating agent, a synergistic effect is exerted through raw material compounding, the content of COD, BOD, SS and NH3-N in printing and dyeing sewage can be effectively decreased, and the chromaticity and the dye concentration of the printing and dyeing sewage can be significantly reduced; the preparation method and the sewage treatment method are simple, the raw materials are easy to obtain, the cost is low, and the sewage treating agent is safe and effective; in addition, the printing and dyeing industry sewage treating agent has the advantages of being capable of rapidly achieving the effects and free of secondary pollution.

Description

technical field [0001] The invention relates to a sewage treatment machine, in particular to a printing and dyeing industrial sewage treatment agent and a preparation method thereof. Background technique [0002] Printing and dyeing wastewater is wastewater discharged from printing and dyeing factories that mainly process cotton, hemp, chemical fibers and their blended products. Printing and dyeing wastewater has a large amount of water, 100-200 tons of water is consumed per ton of textile printing and dyeing, and 80-90% of it becomes wastewater. Textile printing and dyeing wastewater has the characteristics of large water volume, high content of organic pollutants, high alkalinity, and large changes in water quality. It is one of the most difficult industrial wastewater to treat. Impurities, sand substances, inorganic salts, etc. The main methods used to treat printing and dyeing wastewater include physical and chemical methods, biochemical methods, chemical methods and a...

AI Technical Summary

Problems solved by technology

However, printing and dyeing wastewater is one of the industrial wastewater that is difficult to be treated due to its complex composition and good chemical stability, which is difficult to degrade in daily life.

[0003] At present, there are many sewage treatment products used in the sewage treatment and purification of the printing and dyeing industry in China, but there are generally disadvantages such as complicated preparation methods, low sewage treatment efficiency, and high finished sewage treatment products.