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Efficient compound powdered sewage treatment agent and preparation method thereof

A kind of sewage treatment agent and treatment agent technology, applied in the direction of water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., can solve the problem that the recovery rate can only reach 60- 70%, the removal rate can only reach 60-70%, can not meet the requirements of environmental protection and recycling, etc., to achieve the effect of excellent coagulation performance, high recovery rate, and easy production

Inactive Publication Date: 2017-03-08
WUHU YANGZHAN NEW MATERIAL TECH SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Desizing wastewater is the wastewater produced by removing the size of the fabric with chemicals, usually containing a large amount of PVA (polyvinyl alcohol), the composition of this wastewater is complex, and contains 1-10g / l of PVA, COD Concentration reaches 1×10 4 -100×10 4 mg / L, the chroma is more than 400 times. Since PVA is a non-ionic organic polymer, the charge generated by the usual sewage treatment agent containing basic aluminum chloride (PAC) is difficult to adsorb it, and the removal rate of COD can only reach 60- 70%, the recovery rate of PVA can only reach 60-70%, which cannot meet the requirements of environmental protection and recycling

Method used

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  • Efficient compound powdered sewage treatment agent and preparation method thereof
  • Efficient compound powdered sewage treatment agent and preparation method thereof
  • Efficient compound powdered sewage treatment agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 7 parts by weight of 80-mesh tartaric acid and 1 part by weight of 80-mesh ursodeoxycholic acid were mixed for 50 minutes, then 1 part by weight of 80-mesh 2-phenylthio-5-propionylphenylacetic acid was added, mixed for 50 minutes, and then 60 80 mesh calcium sulfate, mixed for 50 minutes, then added 10 weight parts of 80 mesh magnesium carbonate, mixed for 40 minutes, then added 10 weight parts of 80 mesh calcium carbonate and mixed for 40 minutes, then added 10 weight parts of 80 mesh ferric chloride, Mix for 40 minutes, then add 10 parts by weight of 80-mesh calcium oxide and mix for 40 minutes, then add 10 parts by weight of 80-mesh borax, and mix for 120 minutes.

Embodiment 2

[0021] 7 parts by weight of 200 mesh tartaric acid and 1.5 parts by weight of 200 mesh ursodeoxycholic acid were mixed for 90 minutes, then 1.6 parts by weight of 200 mesh 2-phenylthio-5-propionylphenylacetic acid was added, mixed for 90 minutes, and then 70 200 meshes of calcium sulfate in parts by weight, mixed for 90 minutes, then 20 parts by weight of 200 meshes of magnesium carbonate were added, mixed for 50 minutes, 20 parts by weight of 200 meshes of calcium carbonate were added and mixed for 50 minutes, then 20 parts by weight of 200 meshes of ferric chloride were added, Mix for 50 minutes, then add 20 parts by weight of 200-mesh calcium oxide and mix for 50 minutes, then add 20 parts by weight of 200-mesh borax, and mix for 130 minutes.

Embodiment 3

[0023] 8 parts by weight of 400 mesh tartaric acid and 2 parts by weight of 400 mesh ursodeoxycholic acid were mixed for 120 minutes, then 2 parts by weight of 400 mesh 2-phenylthio-5-propionyl phenylacetic acid were added, mixed for 120 minutes, and then 70 400 mesh calcium sulfate in parts by weight, mixed for 120 minutes, then added 15 parts by weight of 400 mesh magnesium carbonate, mixed for 60 minutes, then added 20 parts by weight of 400 mesh calcium carbonate and mixed for 60 minutes, then added 20 parts by weight of 400 mesh ferric chloride, Mix for 60 minutes, then add 20 parts by weight of 400-mesh calcium oxide and mix for 60 minutes, then add 16 parts by weight of 400-mesh borax, and mix for 150 minutes.

[0024] The technical index of embodiment 1-3 is as shown in table 1:

[0025] Table 1:

[0026] Example 1 Example 2 Example 3 Density g / cm 3 (20℃)

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Abstract

The invention discloses an efficient compound powdered sewage treatment agent and a preparation method thereof. The sewage treatment agent comprises tartaric acid, ursodesoxycholic acid, 2-thiophenyl-5-propiono phenylacetic acid, calcium sulfate, magnesium carbonate, calcium carbonate, ferric trichloride, calcium oxide and borax. The preparation method of the sewage treatment agent includes sequentially evenly mixing the materials above. Compared with the prior art, the efficient compound powdered sewage treatment agent has the advantages that when the sewage treatment agent is used to treat desizing sewage containing 1-10g / l of PVA and with COD concentration being 5*10<4>-10*10<4>mg / L and chrominance being 400 times, the removing rate reaches 75-80%, the recovery rate of the PVA reaches 85-90%, and the chrominance reaches below 100 times; the efficient compound powdered sewage treatment agent is wide in adaptive temperature range, good in treatment effect, high in recovery rate and evident in decoloring effect.

Description

technical field [0001] The invention belongs to a sewage treatment agent and a preparation method thereof, in particular to a treatment agent for PVA desizing wastewater and a preparation method thereof. Background technique [0002] Desizing wastewater is the wastewater produced by chemically removing the slurry carried by the fabric, usually containing a large amount of PVA (polyvinyl alcohol), the composition of this wastewater is complex, and contains 1-10g / l of PVA, COD The concentration reaches 1×10 4 -100×10 4 mg / L, the chromaticity is more than 400 times. Since PVA is a non-ionic organic polymer, the charge generated by the common sewage treatment agent containing basic aluminum chloride (PAC) is difficult to adsorb to it, and the removal rate of COD can only reach 60- 70%, the recovery rate of PVA can only reach 60-70%, which cannot meet the requirements of environmental protection and recycling. SUMMARY OF THE INVENTION [0003] The technical problem to be sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/50
CPCC02F1/52C02F1/50C02F1/54C02F2101/34C02F2103/30C02F2303/04C02F2303/08C02F2303/20
Inventor 吴长应
Owner WUHU YANGZHAN NEW MATERIAL TECH SERVICE CO LTD
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