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Papermaking wastewater treating agent and preparing method thereof

A technology for papermaking sewage and treatment agent, which is applied in water/sewage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. Secondary pollution and other problems, to achieve the effect of good treatment effect, good effluent quality and good economic benefits

Inactive Publication Date: 2016-07-20
许婷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are various methods such as physical, chemical, and biological to deal with the pollution of papermaking sewage, but most of the physical methods have problems of poor treatment effect and unstable treatment rate; the cost of biological methods is too high to be popularized and used; more chemical methods are used method to treat sewage, but the existing sewage treatment agent has the problem of secondary pollution in its reagent components, which will also have a certain impact on the environment

Method used

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  • Papermaking wastewater treating agent and preparing method thereof

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Embodiment 1

[0022] A papermaking sewage treatment agent, the components according to parts by weight are: 60 parts of diatomite, 20 parts of activated sludge, 20 parts of porous gravel, 15 parts of modified cassava starch, 5 parts of gypsum powder, 40 parts of sodium acetate, 20 parts of bamboo charcoal, 10 parts of xanthan gum, 5 parts of chitosan, 15 parts of modified cellulose adsorbent, 2 parts of composite flocculant, 2 parts of microbial biofilm, 1 part of sodium lauryl sulfate; The method for preparing tapioca starch comprises the following steps: gelatinizing tapioca starch, mixing and ultrasonically treating the gelatinized tapioca starch solution, soda powder, sodium carboxymethyl cellulose and polyvinyl alcohol, and finally adding monomer two Vinylbenzene and butyl acrylate are stirred and reacted at a constant temperature to obtain modified tapioca starch; the preparation method of the modified cellulose adsorbent comprises the following steps: 1) activating straw cellulose in ...

Embodiment 2

[0030] A papermaking sewage treatment agent, the components according to parts by weight are: 60 parts of diatomite, 20 parts of activated sludge, 20 parts of porous gravel, 20 parts of modified tapioca starch, 8 parts of gypsum powder, 50 parts of sodium acetate, 25 parts of bamboo charcoal, 15 parts of xanthan gum, 5 parts of chitosan, 20 parts of modified cellulose adsorbent, 6 parts of composite flocculant, 6 parts of microbial biofilm, 2 parts of sodium lauryl sulfate; The method for preparing tapioca starch comprises the following steps: gelatinizing tapioca starch, mixing and ultrasonically treating the gelatinized tapioca starch solution, soda powder, sodium carboxymethyl cellulose and polyvinyl alcohol, and finally adding monomer two Vinylbenzene and butyl acrylate are stirred and reacted at a constant temperature to obtain modified tapioca starch; the preparation method of the modified cellulose adsorbent comprises the following steps: 1) activating straw cellulose in...

Embodiment 3

[0038]A papermaking sewage treatment agent, the components according to parts by weight are: 70 parts of diatomite, 25 parts of activated sludge, 25 parts of porous gravel, 20 parts of modified tapioca starch, 8 parts of gypsum powder, 50 parts of sodium acetate, 25 parts of bamboo charcoal, 15 parts of xanthan gum, 8 parts of chitosan, 20 parts of modified cellulose adsorbent, 6 parts of composite flocculant, 6 parts of microbial biofilm, 2 parts of sodium lauryl sulfate; The method for preparing tapioca starch comprises the following steps: gelatinizing tapioca starch, mixing and ultrasonically treating the gelatinized tapioca starch solution, soda powder, sodium carboxymethyl cellulose and polyvinyl alcohol, and finally adding monomer two Vinylbenzene and butyl acrylate are stirred and reacted at a constant temperature to obtain modified tapioca starch; the preparation method of the modified cellulose adsorbent comprises the following steps: 1) activating straw cellulose in ...

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Abstract

The invention discloses a papermaking wastewater treating agent and a preparing method thereof.The papermaking wastewater treating agent is prepared from, by weight, 60-80 parts of kieselguhr, 20-30 parts of activated sludge, 20-30 parts of porous rubble grains, 15-25 parts of modified cassava starch, 5-10 parts of land plaster, 40-60 parts of sodium acetate, 20-30 parts of bamboo charcoal, 10-20 parts of xanthan gum, 5-10 parts of chitosan, 15-25 parts of modified cellulose adsorbent, 2-10 parts of composite flocculant, 2-10 parts of microorganism biological film and 1-2 parts of lauryl sodium sulfate.The physicochemical index of papermaking wastewater can meet the GB18918-2002 standard, and the content of COD, BOD, SS and metal ions is effectively reduced; treatment process is simple, agent dosage is small, treatment effect is good, performance is stable, the quality of discharged water is good, water treatment cost can be effectively reduced, and economic benefits and social benefits are high.

Description

technical field [0001] The invention relates to the technical field of a sewage treatment agent, in particular to a papermaking sewage treatment agent and a preparation method thereof. Background technique [0002] Papermaking wastewater mainly comes from the two production processes of pulping and papermaking in the papermaking industry. Pulping is to separate the fibers in plant raw materials, make slurry, and then bleach it; papermaking is to dilute, shape, and Pressed, dried, and made into paper. These two processes all discharge a large amount of wastewater, and the wastewater produced by pulping is the most polluted. The wastewater discharged during pulp washing is dark brown, which is called black water. The concentration of pollutants in black water is high, the content of BOD is high, and it contains a lot of fibers, inorganic salts and pigments. The wastewater discharged from the bleaching process also contains a large amount of acid and alkali substances. The w...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F103/28
CPCC02F3/34C02F1/281C02F1/286C02F1/56C02F2003/003C02F2103/28
Inventor 许婷
Owner 许婷