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Montmorillonite modified sodium polyacrylate printing and dyeing sewage treatment agent and preparation method thereof

A sodium polyacrylate, printing and dyeing sewage technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of reduction and limited effect, achieve excellent performance and improve chroma The effect of removal rate and efficient printing and dyeing sewage treatment effect

Inactive Publication Date: 2018-10-16
肇庆市创业帮信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The printing and dyeing sewage treatment agent disclosed in this patent has a limited effect on reducing the chromaticity, turbidity and COCcr of printing and dyeing sewage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of montmorillonite modified sodium polyacrylate printing and dyeing sewage treatment agent, comprising the following steps:

[0025] (1) Add disodium ethylenediamine tetraacetate, urea, azobisisobutylamidine hydrochloride and montmorillonite in sequence to the aqueous solution of sodium polyacrylate and mix well to control the pH value of the system between 10.5 and 11.5 , add ammonium persulfate and sodium formaldehyde sulfoxylate after passing through nitrogen to replace the air, wherein, the weight of ammonium persulfate, sodium formaldehyde sulfoxylate, azobisisobutylamidine hydrochloride, montmorillonite and sodium polyacrylate The ratio is: 37:32:83:2500:35000, airtight reaction, take out the colloid, dry and pulverize to obtain montmorillonite modified sodium polyacrylate powder;

[0026] (2) Crush coconut shells to obtain coconut shell powder, add coconut shell powder to phosphoric acid aqueous solution and soak for 25 hours at 75°C, then fi...

Embodiment 2

[0032] A preparation method of montmorillonite modified sodium polyacrylate printing and dyeing sewage treatment agent, comprising the following steps:

[0033] (1) Add disodium ethylenediamine tetraacetate, urea, azobisisobutylamidine hydrochloride and montmorillonite in sequence to the aqueous solution of sodium polyacrylate and mix well to control the pH value of the system between 10.5 and 11.5 , add ammonium persulfate and sodium formaldehyde sulfoxylate after passing through nitrogen to replace the air, wherein, the weight of ammonium persulfate, sodium formaldehyde sulfoxylate, azobisisobutylamidine hydrochloride, montmorillonite and sodium polyacrylate The ratio is: 37:32:83:2500:35000, airtight reaction, take out the colloid, dry and pulverize to obtain montmorillonite modified sodium polyacrylate powder;

[0034] (2) Crush coconut shells to obtain coconut shell powder, add coconut shell powder to phosphoric acid aqueous solution and soak for 20 hours at 80°C, then fi...

Embodiment 3

[0040] A preparation method of montmorillonite modified sodium polyacrylate printing and dyeing sewage treatment agent, comprising the following steps:

[0041] (1) Add disodium ethylenediamine tetraacetate, urea, azobisisobutylamidine hydrochloride and montmorillonite in sequence to the aqueous solution of sodium polyacrylate and mix well to control the pH value of the system between 10.5 and 11.5 , add ammonium persulfate and sodium formaldehyde sulfoxylate after passing through nitrogen to replace the air, wherein, the weight of ammonium persulfate, sodium formaldehyde sulfoxylate, azobisisobutylamidine hydrochloride, montmorillonite and sodium polyacrylate The ratio is: 37:32:83:2500:35000, airtight reaction, take out the colloid, dry and pulverize to obtain montmorillonite modified sodium polyacrylate powder;

[0042] (2) Crush coconut shells to obtain coconut shell powder, add coconut shell powder to phosphoric acid aqueous solution, soak at 70°C for 28 hours, then filte...

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PUM

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Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a montmorillonite modified sodium polyacrylate printing and dyeing sewage treatment agent and a preparation method thereof. Montmorillonite modified sodium polyacrylate is adopted to replace a traditional coagulating agent (sodium polyacrylate), and because the characteristic viscosity of the sodium polyacrylate is increased by virtue of montmorillonite modification, the printing and dyeing sewage treatment agent compounded by the montmorillonite modified sodium polyacrylate has a more efficient printing and dyeing sewage treatment effect, can obviously improve the chroma removing rate, the turbidity removing rate and the COCcr removing rate of the printing and dyeing sewage, and has excellent properties.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a montmorillonite modified sodium polyacrylate printing and dyeing sewage treatment agent and a preparation method thereof. Background technique [0002] The printing and dyeing industry is a large discharge of industrial wastewater. For a long time, printing and dyeing wastewater has been one of the most difficult industrial wastewater at home and abroad because of its large water volume, high content of organic pollutants, deep color, high acidity, and large changes in water quality. Printing and dyeing wastewater mainly comes from pretreatment, dyeing, printing, finishing and other processes. The pretreatment process includes desizing, scouring, bleaching and mercerizing. The discharged wastewater is collectively referred to as bleaching wastewater. Dyeing, printing and finishing processes discharge dyeing wastewater, printing Wastewater and finishing wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/28C02F1/52C02F1/56C02F101/30
CPCC02F1/00C02F1/281C02F1/283C02F1/5236C02F1/5263C02F1/56C02F2101/308
Inventor 贺士友刘海军
Owner 肇庆市创业帮信息技术有限公司
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