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Preparation method of printing and dyeing wastewater purifying agent

A printing and dyeing wastewater and purification agent technology, which is applied in chemical instruments and methods, textile industry wastewater treatment, water/sewage treatment, etc., can solve the problems of poor printing and dyeing wastewater treatment ability, achieve good dehydration performance, simple process, and high adsorption performance Effect

Inactive Publication Date: 2018-10-19
FOSHAN LINGXIE ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology

[0003] Technical problem to be solved by the present invention: Aiming at the problem of poor treatment ability of printing and dyeing wastewater at present, a preparation method of printing and dyeing wastewater purification agent is provided

Method used

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preparation example Construction

[0018] A preparation method of printing and dyeing wastewater purification agent, comprising the steps of:

[0019] (1) Take the blast furnace slag, crush it with a pulverizer, pass it through a 200-mesh sieve, collect the sieved particles, add it to the dilute hydrochloric acid solution at a weight ratio of 1-2:3-5, stir for 1 hour, and add blast furnace slag at a weight ratio of 3-5 : 0.5-1.5 calcium aluminate powder, heated for 0.5h, dried after cooling, collected the dry matter, obtained the base material, and set aside;

[0020] (2) Put the natural zeolite into a solution with a sodium chloride concentration of 5-15wt% at room temperature at a weight ratio of 2.5-7:10-15, and add sodium hydroxide with a weight ratio of 5-8:0.75-1.5 of the zeolite, Soaked, activated by microwave for 10 minutes, and then circulated and cleaned with deionized water to obtain the finished product of modified zeolite;

[0021] (3) The surfactant is dodecylamine propionate and polysorbate mixe...

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Abstract

The invention discloses a preparation method of a printing and dyeing wastewater purifying agent, and belongs to the technical field of sewage treatment. Compared with the prior art, the preparation method of the printing and dyeing wastewater purifying agent uses blast furnace slag as a raw material to prepare a base material containing polyaluminum ferric chloride. After cooling, polyaluminum ferric chloride is adsorbed by the blast furnace slag, modified zeolite is added, the surface of the zeolite is modified to become rough, the average adsorption pore size becomes smaller, the specific surface area becomes larger, and the zeolite has no toxic and side effects on the environment, has a wide adaptive range to acidity, can be recycled, can absorb fiber impurities and the like in printing and dyeing wastewater; polyacrylamide can act as a adsorption bridging precipitation net catches, and increases the effect of alumen ustum. Compared with the conventional cationic polyacrylamide, the polyacrylamide emulsion used in the printing and dyeing wastewater purifying agent has a wider pH range, higher charge stability, and better flocculation effect. The preparation method of the printing and dyeing wastewater purifying agent solves a problem of poor treatment ability for the printing and dyeing wastewater currently.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a preparation method of a printing and dyeing wastewater purifying agent. Background technique [0002] At present, with the vigorous development of industry, the rapid expansion of cities, and the acceleration of rural urbanization, the use of resources is also increasing, especially water resources. my country is a country with scarce water resources. How can we save water? The reuse of resources and water resources has become a concern of people, and in the reuse of water resources, sewage treatment is the most important. More than 95% of cities and enterprises in my country still use the traditional activated sludge method to treat sewage, which has the disadvantages of complex process, large investment, high energy consumption, cumbersome operation and management, and poor treatment effect. At the same time, a large amount of activated sludge will be produced. Sludge...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/56C02F103/30
CPCC02F1/281C02F1/56C02F2103/30
Inventor 胡丽春顾一笑李莉
Owner FOSHAN LINGXIE ENVIRONMENTAL PROTECTION TECH CO LTD
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