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A kind of water purifying agent for industrial waste water and preparation method thereof

A technology of industrial wastewater and water purifiers, applied in water/sewage treatment, water treatment parameter control, chemical instruments and methods, etc., can solve the problems of low adsorption performance, reduce COD, improve sterilization performance, and improve adsorption and flocculation performance effect

Active Publication Date: 2022-05-27
YANGZHOU POLYTECHNIC INST
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  • Description
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Problems solved by technology

Due to its low adsorption performance, it has not been widely used in water treatment.

Method used

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  • A kind of water purifying agent for industrial waste water and preparation method thereof
  • A kind of water purifying agent for industrial waste water and preparation method thereof

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Embodiment 1

[0023] Embodiment 1: a kind of water purifying agent for industrial wastewater, obtained by the following steps:

[0024] Step 1: Add 10 parts of water to the mixer, set the temperature to 35°C, adjust the rotation speed to 80-100r / min, add 13 parts of attapulgite and 6 parts of polysilicate, mix and stir for 10 minutes;

[0025] Step 2: Add 38 parts of modified starch and 7 parts of carboxylated nanocellulose, at the same time add 12 parts of water, mix and stir for 20min;

[0026] Step 3: adding 5 parts of biological sterilizing agent and 12 parts of water, mixing and stirring for 30 minutes, to prepare the water purifying agent.

[0027] Wherein, the synthetic process of described carboxylated nanocellulose is as follows:

[0028] Take 2g of microcrystalline cellulose and 50ml of 2.0mol / L ammonium persulfate solution, mix well, stir ultrasonically at 70 °C for 2h, then add 100ml of water to stop the reaction, and repeat centrifugation after the reaction to obtain milky whi...

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Abstract

This case relates to a water purifying agent for industrial wastewater and a preparation method thereof. Each 100 parts of the water purifying agent includes the following raw materials in parts by mass: 30-40 parts of modified starch, 3-8 parts of carboxylated nanocellulose , 4-8 parts of polysilicate, 8-15 parts of attapulgite, 3-6 parts of biological sterilizing agent and the balance of water; wherein, the modified starch is caprolactone graft modified corn starch, An amide bond is attached to the graft chain. The invention uses caprolactone as the bridge connecting the amide bond with the corn starch to provide cohesion-flocculation for the polymer starch; the carboxylated nanocellulose is also a natural polymer with a structure similar to that of starch, which can assist the modified starch to promote The flocs settle quickly, and its nano-size effect helps to load the biological sterilizer, which further reduces COD and improves the sterilization performance; polysilicate and attapulgite are used together as inorganic substances to further improve the adsorption and flocculation performance. , to achieve the effect of comprehensive management.

Description

technical field [0001] The invention relates to the field of industrial wastewater treatment, in particular to a water purifying agent for industrial wastewater and a preparation method thereof. Background technique [0002] The progress of human society benefits from the rapid development of industrialization. However, while enjoying the convenience brought by industrialization and modernization, various environmental pollution problems also follow. The increasing amount of industrial water consumption and wastewater discharge not only destroys the balance of ecological resources, but also affects people's living environment. At present, the main treatment method of industrial wastewater is coagulation-flocculation method. Through the synergistic effect of inorganic metal salts and organic macromolecular polymers, the pollutants in wastewater are destabilized and aggregated into separable precipitates, so that industrial wastewater can be obtained. Purify. [0003] Howeve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/56C02F1/52C02F1/50C02F1/28
CPCC02F1/56C02F1/5236C02F1/5263C02F1/50C02F1/285C02F1/286C02F2209/08
Inventor 陈华进华丽周寅飞
Owner YANGZHOU POLYTECHNIC INST
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