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Method for removing formaldehyde, methyl alcohol and phenol in wastewater of phenolic resin workshop

A phenolic resin and waste water technology, applied in methanol and phenol to remove formaldehyde in phenolic resin workshop waste water, can solve the problems of high cost, high production cost, low extraction rate, etc. low cost effect

Inactive Publication Date: 2016-03-23
王春望
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The biochemical decomposition method must first dilute the sewage hundreds of times before carrying out biochemical treatment. The investment is large, and the average treatment of one ton of wastewater costs 300 yuan. The production cost is high and a lot of water resources are wasted.
[0005] Chemical oxidation, using potassium permanganate or ozone oxidation, has high cost and high technical requirements, and is difficult to popularize
[0006] The extraction recovery method uses organic solvents (such as coal tar) as the extraction agent, the extraction rate is low, the highest is less than 90%, and the phenol content in the treated wastewater still exceeds the standard by thousands of times, and biological dephenolization treatment is required, and the process is complicated. High cost and unsatisfactory treatment effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A method for removing formaldehyde, methanol and phenol in wastewater from a phenolic resin workshop,

[0064] Step 1: Add the following substances in parts by mass to the waste water:

[0065] 10 parts of 2-tridecanone,

[0066] 15 parts of sodium 4-chlorophenoxyacetate,

[0067] 0.6 parts of dehydropeimine,

[0068] 8 parts of didodecyl thiodipropionate,

[0069] 4 parts ferric hollylic acid,

[0070] After stirring for 5-15 minutes, let it stand for 30-40 minutes, and then filter to obtain the supernatant;

[0071] Step 2: Add the following substances in parts by mass to the supernatant obtained in Step 1:

[0072] 16 parts of 1,3,3-trimethyl-2-oxabicyclo[2.2.2]octane,

[0073] 10 parts of calcium dihydrogen phosphate,

[0074] 0.5 parts of lobeliadine hydrochloride,

[0075] 8 parts of 4-octylphenol ethoxylate,

[0076] 3 parts of 3',4'-dihydroxy-2-(methylamino)acetophenone hydrochloride,

[0077] After stirring for 5-15 minutes, let it stand for 30-40 min...

Embodiment 2

[0089] A method for removing formaldehyde, methanol and phenol in wastewater from a phenolic resin workshop,

[0090] Step 1: Add the following substances in parts by mass to the waste water:

[0091] 18 parts of 2-tridecanone,

[0092] 19 parts of sodium 4-chlorophenoxyacetate,

[0093] 1.0 part of dehydropeimine,

[0094] 8 parts of didodecyl thiodipropionate,

[0095] 4 parts ferric hollylic acid,

[0096] After stirring for 5-15 minutes, let it stand for 30-40 minutes, and then filter to obtain the supernatant;

[0097] Step 2: Add the following substances in parts by mass to the supernatant obtained in Step 1:

[0098] 16 parts of 1,3,3-trimethyl-2-oxabicyclo[2.2.2]octane,

[0099] 10 parts of calcium dihydrogen phosphate,

[0100] 0.5 parts of lobeliadine hydrochloride,

[0101] 8 parts of 4-octylphenol ethoxylate,

[0102] 3 parts of 3',4'-dihydroxy-2-(methylamino)acetophenone hydrochloride,

[0103] After stirring for 5-15 minutes, let it stand for 30-40 minu...

Embodiment 3

[0115] A method for removing formaldehyde, methanol and phenol in wastewater from a phenolic resin workshop,

[0116] Step 1: Add the following substances in parts by mass to the waste water:

[0117] 14 parts of 2-tridecanone,

[0118] 17 parts of sodium 4-chlorophenoxyacetate,

[0119] 0.8 part of dehydropeimine,

[0120] Didodecyl Thiodipropionate 11 parts,

[0121] 6 parts of iron hollylic acid,

[0122] After stirring for 5-15 minutes, let it stand for 30-40 minutes, and then filter to obtain the supernatant;

[0123] Step 2: Add the following substances in parts by mass to the supernatant obtained in Step 1:

[0124] 18 parts of 1,3,3-trimethyl-2-oxabicyclo[2.2.2]octane,

[0125] Calcium dihydrogen phosphate 15 parts,

[0126] 0.8 parts of lobeliadine hydrochloride,

[0127] 10 parts of 4-octylphenol ethoxylate,

[0128] 4 parts of 3',4'-dihydroxy-2-(methylamino)acetophenone hydrochloride,

[0129] After stirring for 5-15 minutes, let it stand for 30-40 minutes...

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PUM

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Abstract

The invention relates to a method for removing formaldehyde, methyl alcohol and phenol in wastewater of a phenolic resin workshop. 2-tridecanone, sodium 4-chlorophenoxyacetate, fritillarine, thiodipropionicacid dilauryl ester, rotundic acid, 4-acetoxyl-3-methoxyl-(2-allyl) benzene, lobelanidine hydrochloride, 4-octyl phenol ethoxylate, 3',4'-dyhydroxy-2-(methylamino) acetophenone hydrochloride and the like are sequentially added to the wastewater. The complexing power of the treatment method and target matter is high, the sedimentation speed of formed complex is high, the removal rate can reach 99.9%, the use amount is small, and no harm is generated to water.

Description

technical field [0001] The invention relates to a method for removing formaldehyde, methanol and phenol in wastewater from a phenolic resin workshop, and belongs to the technical field of environmental protection. Background technique [0002] Phenolic resins are polymerized from phenol and formaldehyde under certain conditions, and are widely used in bakelite composite materials, anti-corrosion materials, binders and paints. A large amount of high-concentration phenol-containing wastewater is produced in the production process of phenolic resin. Because phenol is a highly toxic and highly corrosive chemical substance, it is extremely toxic to most organisms, can cause protein denaturation and coagulation, and eventually lead to tissue failure and death. Therefore, if these wastewaters are directly discharged into natural water bodies without treatment, it will cause serious damage to the natural environment on which we live. The U.S. National Environmental Protection Agen...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/54C02F1/58C02F101/34
CPCC02F1/5272C02F1/542C02F1/58C02F2101/34C02F2101/345
Inventor 王春望
Owner 王春望
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