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Efficient compound powdery sewage treating agent and preparing method thereof

A technology of sewage treatment agent and treatment agent, which is applied in the direction of flocculation/sedimentation water/sewage treatment, sterilization/microdynamic water/sewage treatment, botany equipment and methods, etc. It can solve the problem that the recovery rate can only reach 60-70% , The removal rate can only reach 60-70%, and it cannot meet the requirements of environmental protection and recycling, etc., to achieve the effect of excellent coagulation performance, high recovery rate, and convenient production

Inactive Publication Date: 2017-01-04
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 powdery sewage treating agent and preparing method thereof
  • Efficient compound powdery sewage treating agent and preparing method thereof
  • Efficient compound powdery sewage treating agent and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix 7 parts by weight of 80 mesh tartaric acid and 1 weight part of 80 mesh ursodeoxycholic acid for 50 minutes, then add 60 parts by weight of 80 mesh calcium sulfate, mix for 50 minutes, then add 10 parts by weight of 80 mesh magnesium carbonate, and mix for 40 minutes , then add 10 parts by weight of 80 mesh calcium carbonate and mix for 40 minutes, then add 10 parts by weight 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, mixed for 120 minutes, can be.

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 70 parts by weight of 200 mesh calcium sulfate were added, mixed for 90 minutes, and 20 parts by weight of 200 mesh magnesium carbonate were added, and mixed for 50 minutes , then add 20 parts by weight of 200 mesh calcium carbonate and mix for 50 minutes, then add 20 parts by weight of 200 mesh ferric chloride, 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, mixed for 130 minutes, can be.

Embodiment 3

[0023] Mix 8 parts by weight of 400 mesh tartaric acid and 2 parts by weight of 400 mesh ursodeoxycholic acid for 120 minutes, then add 70 parts by weight of 400 mesh calcium sulfate, mix for 120 minutes, then add 15 parts by weight of 400 mesh magnesium carbonate, and mix for 60 minutes , then add 20 parts by weight of 400 mesh calcium carbonate and mix for 60 minutes, then add 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, mixed for 150 minutes, can be.

[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 / ㎝ 3 (20°C) 1.20 1.25 1.28

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Abstract

The invention discloses an efficient compound powdery sewage treating agent and a preparing method thereof. The sewage treating agent is prepared from tartaric acid, ursodesoxycholic acid, calcium sulfate, magnesium carbonate, calcium carbonate, ferric trichloride, calcium oxide and borax. The method includes the step that all the substances are mixed uniformly in sequence. Compared with the prior art, the removal rate of desizing sewage reaches 70-75%, wherein PVA of the sewage is 1-10 g / l, the COD concentration reaches 5*10<4>-10*10<4> mg / L, and the chromaticity reaches 400 times, the PVA recovery rate reaches 80-85%, and the chromaticity reaches 100 times or below. The efficient compound powdery sewage treating agent has the advantages of being wide in temperature application range, good in treatment effect, high in recovery rate and obvious 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 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 chromaticity 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%, does not reach the requirement of environmental protection and recovery. Contents of the invention [0003] The technical problem to be solved by the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/50A01N59/14A01N37/36A01N45/00A01N59/06A01P1/00C23F11/18
CPCC02F1/52A01N37/36A01N45/00A01N59/06A01N59/14C02F1/50C23F11/187A01N2300/00
Inventor 吴长应
Owner WUHU YANGZHAN NEW MATERIAL TECH SERVICE CO LTD
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