Polyacrylamide sewage treating agent and preparation method thereof

A sewage treatment agent, polyacrylamide technology, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as occupation, threat, local environmental damage, etc.

Active Publication Date: 2015-01-07
格润化学(东营)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to incomplete statistics, my country produces hundreds of millions of tons of industrial wastewater with high heavy metal content every year. The organic pollutants and heavy metals in these industrial wastewater, such as phenols, dyes, cadmium, chromium, mercury, etc., are often highly toxic. Therefore, The water environment in the area is seriously polluted, causing damage and threat to the local environment
[0003] Although the domestic sewage has a small content of heavy metals, when it is discharged into rivers and lakes, it often causes algae to g

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of above-mentioned sewage treatment agent, prepare according to the following steps:

[0021] Step 1, accurately weighing each component according to parts by weight;

[0022] Step 2, adding 10 parts of dimethyl diallyl ammonium chloride, acrylamide, EDTA, polyethylene glycol 2000, polysorbate 80 and deionized water into the reaction kettle, stirring and mixing evenly;

[0023] Step 3: Introduce nitrogen gas into the reaction kettle, stir and heat up to 40°C in an atmosphere protected by nitrogen gas, add fatty amine, and stir and mix evenly at 80 rpm;

[0024] Step 4, adding sodium hydroxypropyl methylcellulose to the mixture in step 3, keeping the temperature at 40°C, stirring and reacting for 2 hours, then lowering to normal temperature to obtain Intermediate 1;

[0025] Step 5, adding polyaluminum chloride, polyacrylamide, quartz sand and diatomaceous earth to the remaining deionized water, and stirring at room temperature for 30 minutes to o...

Embodiment 2

[0029] The preparation method of above-mentioned sewage treatment agent, prepare according to the following steps:

[0030] Step 1, accurately weighing each component according to parts by weight;

[0031] Step 2, adding 15 parts of dimethyl diallyl ammonium chloride, acrylamide, EDTA, polyethylene glycol 2000, polysorbate 60 and deionized water into the reaction kettle, stirring and mixing evenly;

[0032] Step 3: Introduce nitrogen into the reactor, stir and heat up to 42°C in an atmosphere protected by nitrogen, add aliphatic amine, and stir and mix evenly at 85 rpm;

[0033] Step 4, adding sodium hydroxypropyl methylcellulose to the mixture in step 3, keeping the temperature at 42°C, stirring and reacting for 3 hours, then cooling down to normal temperature to obtain Intermediate 1;

[0034] Step 5, adding polyaluminum chloride, polyacrylamide, quartz sand and diatomaceous earth to the remaining deionized water, and stirring at room temperature for 36 minutes to obtain in...

Embodiment 3

[0038] The preparation method of above-mentioned sewage treatment agent, prepare according to the following steps:

[0039] Step 1, accurately weighing each component according to parts by weight;

[0040] Step 2, adding 20 parts of dimethyl diallyl ammonium chloride, acrylamide, EDTA, polyethylene glycol 2000, polysorbate 80 and deionized water into the reaction kettle, stirring and mixing evenly;

[0041] Step 3: Introduce nitrogen gas into the reaction kettle, stir and heat up to 46°C in a nitrogen-protected atmosphere, add fatty amine, and stir and mix evenly at 90 rpm;

[0042] Step 4, adding sodium hydroxypropyl methylcellulose to the mixture in step 3, keeping the temperature at 46°C, stirring and reacting for 3 hours, then lowering to normal temperature to obtain Intermediate 1;

[0043] Step 5, adding polyaluminum chloride, polyacrylamide, quartz sand and diatomaceous earth to the remaining deionized water, and stirring at room temperature for 40 minutes to obtain in...

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PUM

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Abstract

The invention discloses a polyacrylamide sewage treating agent and a preparation method thereof. The sewage treating agent is prepared from the following components in parts by weight: 30-40 parts of aluminum polychlorid, 15-25 parts of polyacrylamide, 3-8 parts of quartz sand, 1-5 parts of diatomite, 3-6 parts of dimethyl diallyl ammonium chloride, 5-10 parts of acrylamide, 0.5-2 parts of fatty amine, 0.5-1 part of polyethylene glycol 2000, 0.8-1.5 parts of polysorbate, 0.1-0.5 part of EDTA, 1-5 parts of hydroxypropyl methyl cellulose and 60-70 parts of deionized water. The preparation method comprises the following steps: respectively adding 10-20 parts of dimethyl diallyl ammonium chloride, acrylamide, EDTA, polyethylene glycol 2000, polysorbate and deionized water into a reaction kettle, uniformly stirring, adding fatty amine under nitrogen protection, and heating to react to obtain an intermediate I; and mixing the residual components to obtain an intermediate II, and finally mixing the intermediates I and II to obtain the polyacrylamide sewage treating agent.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a polyacrylamide sewage treatment agent and a preparation method thereof. Background technique [0002] With the improvement of people's living standards in our country and the rapid acceleration of the urbanization process, the growth rate of various wastewater such as industrial wastewater and domestic sewage is astonishing, and the amount is huge. According to incomplete statistics, the industrial wastewater with high heavy metal content produced in my country every year amounts to hundreds of millions of tons. The organic pollutants and heavy metals in these industrial wastewater, such as phenols, dyes, cadmium, chromium, mercury, etc., are often highly toxic. Therefore, The water environment in the area is seriously polluted, causing damage and threat to the local environment. [0003] Although domestic sewage has a small content of heavy metals, when it is discha...

Claims

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Application Information

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IPC IPC(8): C02F1/00
CPCC02F1/00
Inventor 李海涛李恒滨
Owner 格润化学(东营)有限公司
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