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Inorganic-organic composite flocculant, preparation method and application thereof

A compound flocculant technology, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, natural water treatment, etc., can solve the complex process, difficult latex wastewater treatment, wastewater pollution and other problems, to achieve the preparation of raw materials Simple and easy to obtain, low price of raw materials, good treatment effect

Active Publication Date: 2013-01-30
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of wastewater pollution caused by the processing and production of natural rubber latex has become a bottleneck restricting the development of my country's rubber industry.
[0003] The composition of natural rubber latex processing wastewater is complex. In addition to rubber whey, there are also proteins, lipids, sugars and inorganic salts, which bring great difficulties to the treatment of latex wastewater.
At present, the treatment methods for latex processing wastewater at home and abroad mainly use anaerobic-oxidation pond natural aeration method, anaerobic-activated sludge mechanical forced aeration oxidation method, biological turntable method and aquatic biological method, etc., all of which have technological processes Complicated and imperfect, high treatment cost, long cycle, large floor area, greatly affected by water quality fluctuations, and accompanied by the generation of malodorous gas, etc.
The flocculation-sedimentation method has the advantages of fast speed, high efficiency, low investment, simple method, good treatment effect, and low cost. It plays an important role in the process of wastewater treatment. rare

Method used

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  • Inorganic-organic composite flocculant, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Under the condition of 35℃ and 260r / min continuous stirring, add 1g polyaluminum ferric chloride to 100g water, stir for 4 minutes; continue to add 0.02g polyvinylpyrrolidone, stir for 4 minutes; continue to add 0.02g chitosan, stir 10 minutes; finally add 0.05g of red clay and stir for 6 minutes to obtain inorganic-organic composite flocculant 1.

Embodiment 2

[0025] At 50°C and 260r / min under continuous stirring, add 1g of polyaluminum ferric chloride to 100g of water and stir for 4 minutes; continue to add 0.05g of polyvinylpyrrolidone and stir for 4 minutes; continue to add 0.04g of chitosan and stir 10 minutes; finally add 0.1 g of red clay and stir for 6 minutes to obtain inorganic-organic composite flocculant 2.

Embodiment 3

[0027] At 65°C and 260r / min under continuous stirring, add 1g of polyaluminum ferric chloride to 100g of water, and stir for 4 minutes; continue to add 0.08g of polyvinylpyrrolidone, and stir for 4 minutes; continue to add 0.06g of chitosan, and stir 10 minutes; finally add 0.15g of red clay and stir for 6 minutes to obtain inorganic-organic composite flocculant 3.

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Abstract

The invention discloses an inorganic-organic composite flocculant, a preparation method and an application thereof. The flocculant comprises, by mass, one part of poly aluminum ferric chloride, 0.02-0.08 part of polyvinylpyrrolidone, 0.02-0.06 part of chitosan and 0.05-0.15 parts of red clay. According to the inorganic-organic composite flocculant, the raw materials are simple and easy to obtain and environment-friendly, the preparation method is simple, all components are sequentially mixed and evenly stirred only; and in addition, the flocculant has good treatment effect on processing waste water of natural rubber and / or latex, the turbidity removal rate reaches more than 95%, and the removal rate of chemical oxygen demand (COD) reaches more than 70% and can reach up to 90%-92%.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an inorganic-organic composite flocculant, a preparation method and application thereof. Background technique [0002] Natural rubber latex is widely used in the preparation of various gloves (medical gloves, examination gloves, household gloves, etc.), condoms, catheters, blood transfusion hoses and other products. At present, my country's natural rubber consumption has leapt to the forefront of the world. However, a large amount of wastewater pollution caused by the processing and production of natural rubber latex has become a bottleneck restricting the development of my country's rubber industry. [0003] The composition of natural rubber latex processing wastewater is complex. In addition to rubber whey, there are also proteins, lipids, sugars and inorganic salts, which bring great difficulties to the treatment of latex wastewater. At present, the t...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56C02F103/38
Inventor 敖宁建李志敏
Owner JINAN UNIVERSITY
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