Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Water purifier adopted in nitrile rubber production and wastewater treatment method

A technology of nitrile rubber and water purifying agent, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, natural water treatment, etc. It can solve the problems of difficult decomposition, poor biodegradability, reduction of reoxygenation rate and oxygenation To achieve the effect of improving the ability to resist shock loads, avoiding secondary pollution, and reducing emissions

Inactive Publication Date: 2016-04-20
SHANDONG YONGTAI CHEM GROUP
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sources of wastewater in nitrile rubber are mainly SS, COD, pull-off powder, butadiene, acrylonitrile, etc. Among the above-mentioned wastewater components, pull-off powder is an anionic surfactant containing a naphthalene ring, and its main component is 1, Sodium 2-dibutyl-6-naphthalenesulfonate is a branched-chain anionic surfactant, which will produce a lot of foam in water, reduce the reoxygenation rate and oxygenation degree of water, inhibit and kill microorganisms, and give Biological treatment of wastewater poses great difficulties
The structure of the opened powder is quite stable, with poor biodegradability and difficult to decompose, because it is difficult to achieve satisfactory results by conventional physical and chemical methods (such as adsorption, flocculation sedimentation, chemical oxidation, biodegradation, etc.)
[0003] Therefore, it is necessary to treat the above-mentioned wastewater, but the effect of a single physical precipitation is not ideal, and the chemical treatment method is likely to bring new pollution and produce other chemical substances

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The following waste water is taken from a rubber manufacturer. This waste water is specifically the waste water produced by the above-mentioned manufacturer when producing nitrile rubber. There are more suspended solids in the water body of the waste water, and the water body has peculiar smell. The method of the present invention is used to carry out the following treatment (the waste water samples taken in the following embodiments 2 and 3 are the same batch):

[0033] First add solid adsorption materials into the wastewater, stir evenly at a speed of 15 rpm, stir for 0.6 hours, and let it stand for 3 hours. The wastewater is stratified into the upper layer of clear water and the lower layer of precipitation; the solid adsorption materials are: medical stone 24, slag 15 , polyacrylamide 15;

[0034] Release the upper layer of clear water in the above-mentioned wastewater, remove the precipitated pollutants at the bottom, add microbial water purifiers to the upper laye...

Embodiment 2

[0041] First add solid adsorption materials into the waste water, stir evenly at a speed of 10 rpm, stir for 0.2 hours, and let stand for 2 hours, the waste water is stratified into the upper layer of clear water and the lower layer of precipitation; the solid adsorption materials are: medical stone 10, slag 10 , polyacrylamide 5;

[0042] Release the upper layer of clear water in the above-mentioned waste water, remove the precipitated pollutants at the bottom, add microbial water purifiers to the upper layer of clear water, stir evenly at a speed of 10 rpm, stir for 0.2 hours, and let stand for 2 hours; the microbial water purifiers are : Sphingomonas paucimobilis bacteria powder 0.5, sulfate reducing bacteria bacteria powder 0.5, Rhodococcus erythrococcus bacteria powder 0.2, Paracoccus ammonophilus bacteria powder 0.5;

[0043] Then adjust the pH of the wastewater in the above steps to 4.5, keep the temperature of the wastewater at 35°C, then add enzyme preparations to the...

Embodiment 3

[0049] First add solid adsorption materials into the waste water, stir evenly at a speed of 20 rpm, stir for 1 hour, and let stand for 5 hours, the waste water is stratified into the upper layer of clear water and the lower layer of precipitation; the solid adsorption materials are: medical stone 25, slag 20 , polyacrylamide 15;

[0050] Release the upper layer of clear water in the above-mentioned wastewater, remove the precipitated pollutants at the bottom, add microbial water purifiers to the upper layer of clear water, stir evenly at a speed of 20 rpm, stir for 1 hour, and leave standstill for 6 hours; the microbial water purifiers are : Sphingomonas paucimobilis powder 2.0, sulfate reducing bacteria powder 1.5, Rhodococcus erythrococcus powder 1.0, Paracoccus ammonophilus powder 1.5;

[0051] Then adjust the pH of the wastewater in the above steps to 6.0, keep the temperature of the wastewater at 45°C, then add enzyme preparations to the above wastewater, stir evenly at a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of rubber wastewater treatment, and particularly relates to a water purifier adopted in nitrile rubber production and a wastewater treatment method. The water purifier is composed of a solid adsorption material, a microorganism water purifier and an enzymic preparation. The solid adsorption material is prepared from, by weight, 10-25 parts of medical stone, 10-20 parts of slag and 5-20 parts of polyacrylamide. The microorganism water purifier is prepared from, by weight, 0.5-2.0 parts of sphingomonas paucimobilis powder, 0.5-1.5 parts of sulfate reducting bacterium powder, 0.2-1.0 part of rhodococcus ruber powder and 0.5-1.5 parts of paracoccus aminovorans powder. The enzymic preparation is prepared from, by weight, 0.05-0.1 part of thioesterase, 0.04-0.15 part of aldehyde dehydrogenase, 0.03-0.2 part of mannose and 0.02-0.1 part of lipoxygenase. The solid water purifier, the composite microbial agent and the enzymic preparation act on wastewater together, secondary pollution caused by chemical treatment is avoided, sewage discharge is reduced, and the quality of wastewater is improved; by the adoption of the method, CODcr discharge meets the national standard.

Description

technical field [0001] The invention belongs to the technical field of rubber wastewater treatment, and in particular relates to a water purifying agent used in the production of nitrile rubber and a wastewater treatment method. Background technique [0002] The sources of wastewater in nitrile rubber are mainly SS, COD, pull-off powder, butadiene, acrylonitrile, etc. Among the above-mentioned wastewater components, pull-off powder is an anionic surfactant containing a naphthalene ring, and its main component is 1, Sodium 2-dibutyl-6-naphthalenesulfonate is a branched-chain anionic surfactant, which will produce a lot of foam in water, reduce the reoxygenation rate and oxygenation degree of water, inhibit and kill microorganisms, and give Biological treatment of wastewater poses great difficulties. The structure of the opened powder is quite stable, with poor biodegradability and difficult to decompose, because it is difficult to achieve satisfactory results by convention...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C02F3/34C02F103/38
CPCC02F3/34C02F2103/38
Inventor 尤晓明王显涛张新平曹佃波冯小波
Owner SHANDONG YONGTAI CHEM GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com