Printing and dyeing wastewater is one of the main harmful and difficult to treat industrial wastewater in our country. The main pollutants are dyes, slurries, auxilaries, fiber impurities, oils, acid bases and inorganic salts. It is characterized by a large amount of wastewater, complex water quality, high concentration of organic matter, difficult biodegradation, deep color, rapid and irregular water quality, etc., especially the most serious pollution of dyes, even if the concentration of the remaining dye components is very low, it will cause the water transmittance is reduced, resulting in the destruction of the ecological environment.
Decolorizing agent plays a role in the treatment of printing and dyeing wastewater Important role
And its function should not be underestimated
It's time to meet our eco-friendly friend Cleanmaster multi-purpose sewage decolorizing agent.
Compared with other decolorizers on the market, the polymer compound polymer used in the WDR multi-purpose wastewater decolorizer is easily dissolved in water, and can form a multi-nuclear complex to polymerize the particles colloids and particulate suspended substances in water to form a large volume, high density and fast settling flocculant. It has the characteristics of high decolorization efficiency, less amount, COD removal, and less sludge, and does not affect the biochemical system of sewage treatment.
In anodizing, textile printing and dyeing, metal plating, paper making, pigment, oil wastewater, chemical wastewater, ink wastewater color treatment, while reducing other pollutants in the water, reduce sewage chroma to improve effluent quality.
At the same time, it is used in water reuse, pretreatment of a small amount of high-concentration colored wastewater, oil drilling and other water treatment fields.
It belongs to the principle of flocculation and decolorization, no metal ion residue, and solves the water pollution problem through sludge water separation at one time, no secondary pollution, and the dosing process is simple and adaptable.
Laboratory pilot procedure
1. Take an appropriate amount of wastewater (about 100ml) with a beaker and adjust the PH value 7-8
2. Drip adding agent: First add a certain amount of decolorizing agent (0.5‰ -3 ‰), stir, and then add 1-2% pam aqueous solution to stir, stand;
3. Observe whether the color of the supernatant meets the requirements, if not, adjust the dosage of the agent and repeat the third step
4. Calculate the amount of decolorizing agent and other agents in each ton of wastewater according to the test data.
Decoloring Agent common problems?
01 How to use decoloring agent?
A: When the machine is used, dilute the product with 10-40 water, and then directly add it to the water, stir for a few minutes after precipitation or air flotation, you can get the decolorization clear liquid: the PH value of the wastewater range 6-12 can have the ideal effect.
02 Do I need PAC to use decoloring agent?
A: No, it needs to be used with polyacrylamide, which can speed up the precipitation and clarification time.
03 Is it oxidation decolorization, is it harmful to the strain?
A: It has no effect on the strain and will not increase other indicators.
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