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A kind of waste water treatment agent and its preparation method and application

A wastewater treatment agent and flocculant technology, which is applied in the process of wastewater treatment, water/sewage treatment, adsorbed water/sewage treatment, etc., can solve the problems of increased treatment cost, high suspended solids content, and difficulty in wastewater treatment, and achieves purification. Outstanding effect, enhanced flocculation, good treatment effect

Active Publication Date: 2021-11-23
珠海市建滔环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the treatment agents need to adjust the pH value of the wastewater to near the neutral value before putting them in, otherwise the effect will not be good
Adding acid and alkali will inevitably increase new pollution and increase treatment costs
At the same time, the high content of suspended solids in papermaking wastewater brings great difficulty to wastewater treatment

Method used

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  • A kind of waste water treatment agent and its preparation method and application
  • A kind of waste water treatment agent and its preparation method and application
  • A kind of waste water treatment agent and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A wastewater treatment agent consisting of the following components:

[0041]

[0042]

[0043] The macroporous resin model is YKHCN-2 (purchased from Tianjin Yunkai Resin Technology Co., Ltd.), with a diameter of 0.3-1.25mm, and the iron ion flocculant is polyferric sulfate.

[0044] A preparation method for waste water treatment agent, comprising the following steps:

[0045] (1) Weigh 50g of graphene and 500g of diatomite, stir for 3h at a stirring rate of 250 rpm to make it fully mixed; then roast at a temperature of 650°C for 3h, and carry out crushing after cooling, and then Grinding and passing through an 80-mesh sieve to obtain graphene-modified diatomite;

[0046] (2) Then disperse 80g of polyacrylamide in water, add the graphene-modified diatomite prepared in step (1), stir for 3h at a stirring rate of 300 rpm, make it fully mixed; then stand 5h, dried at 60°C for 3 hours to obtain modified diatomite.

[0047] (3) Take 200g modified diatomite, 30g nan...

Embodiment 2

[0049] A wastewater treatment agent consisting of the following components:

[0050]

[0051] The type of macroporous resin is YKHCN-2, the diameter is 0.3-1.25mm, and the iron ion flocculant is polysilicate ferric chloride.

[0052] A preparation method for waste water treatment agent, comprising the following steps:

[0053] (1) Weigh 50g of graphene and 500g of diatomite, stir for 3h at a stirring rate of 250 rpm to make it fully mixed; then roast at a temperature of 650°C for 3h, and carry out crushing after cooling, and then Grinding and passing through an 80-mesh sieve to obtain graphene-modified diatomite;

[0054] (2) Then disperse 80g of polyacrylamide in water, add the graphene-modified diatomite prepared in step (1), stir for 3h at a stirring rate of 300 rpm, make it fully mixed; then stand 5h, dried at 60°C for 3 hours to obtain modified diatomite.

[0055] (3) Get 280g of modified diatomite, 60g of nano-zinc oxide, 60g of nano-silicon oxide, stir for 2h at a s...

Embodiment 3

[0057] A wastewater treatment agent consisting of the following components:

[0058]

[0059] The type of macroporous resin is YKHCN-2, the diameter is 0.3-1.25mm, and the iron ion flocculant is polyferric sulfate.

[0060] A preparation method for waste water treatment agent, comprising the following steps:

[0061] (1) Weigh 50g of graphene and 500g of diatomite, stir for 3h at a stirring rate of 250 rpm to make it fully mixed; then roast at a temperature of 650°C for 3h, and carry out crushing after cooling, and then Grinding and passing through an 80-mesh sieve to obtain graphene-modified diatomite;

[0062] (2) Then disperse 80g of polyacrylamide in water, add the graphene-modified diatomite prepared in step (1), stir for 3h at a stirring rate of 300 rpm, make it fully mixed; then stand 5h, dried at 60°C for 3 hours to obtain modified diatomite.

[0063] (3) Get 350g of modified diatomite, 60g of nano-zinc oxide, 40g of nano-silicon oxide, stir for 2h at a stirring ...

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Abstract

The invention belongs to the technical field of wastewater treatment, and discloses a wastewater treatment agent, a preparation method and application thereof. The wastewater treatment agent includes modified diatomite, iron ion flocculant, nano oxide and macroporous resin; the modified diatom earth is prepared by co-modification of graphene and polyacrylamide; the nano oxide includes nano oxide Silicon and Nano Zinc Oxide. The invention uses graphene and polyacrylamide to jointly modify the diatomite, so that the structure of the modified diatomite is more stable, not affected by acidity and alkalinity, and has strong adsorption force. The invention also enhances the flocculation and adsorption effects through the modified diatomite composite iron ion flocculant and the macroporous resin, so that the treatment agent has a good treatment effect, especially the purification effect on suspended matter in wastewater is outstanding.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a wastewater treatment agent and its preparation method and application. Background technique [0002] The papermaking process includes key steps such as pulping, modulation, papermaking, and cutting. A large amount of waste liquid will be produced in papermaking, especially in the pulping process, including pulping cooking waste liquid, washing waste water, bleaching waste water and paper machine white water. Papermaking waste liquid has complex components and poor biodegradability, mainly including the following pollutants: (1) settleable suspended matter and non-settled suspended matter, mainly fibers and fiber fines; (2) easily biodegradable organic matter, such as hemicellulose, Methanol, acetic acid, formic acid, sugars, etc.; (3) Refractory organic matter: lignin and macromolecular carbohydrates contained in fiber raw materials; (4) Toxic substanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/56C02F1/28C02F103/28C02F101/30
CPCC02F1/288C02F1/5236C02F1/56C02F2101/30C02F2103/28
Inventor 孔庆健余劲梁海涛周堃贺鹏辉
Owner 珠海市建滔环保科技有限公司
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