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Deformer special for treating landfill leachate

A technology of landfill leachate and defoamer, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve problems such as loss, achieve convenient storage, and improve overall efficiency And economy, the effect of low processing cost

Inactive Publication Date: 2011-07-20
SHANGHAI HUALIZHEN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the improvement of emission standards in my country's environmental protection industry, GB16889-97 and GB16889-2008 have been promulgated and implemented within 10 years, and the leachate treatment process has gradually been finalized as pretreatment + biochemical treatment + membrane treatment; among them, in the implementation of the above two standards When the limit is stricter, the membrane treatment is generally MF / UF+RO, or MF / UF+NF+RO, no matter which one is used, the terminal filter membrane is basically a reverse osmosis membrane. Strict restrictions and requirements are put forward for the use of defoamers. If the principle of defoamer selection is violated, the subsequent membrane system, especially the reverse osmosis system, will bring serious losses. Therefore, an environmentally friendly and efficient landfill leachate treatment special Defoamer is quite necessary

Method used

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  • Deformer special for treating landfill leachate
  • Deformer special for treating landfill leachate
  • Deformer special for treating landfill leachate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Mixing: Mix 8 tons of raw materials according to the following mass parts, 30 parts of nonylphenol polyoxyethylene ether, 25 parts of polyoxypropyl polyoxyethyl glycerol ether, and 17 parts of alkylphenol polyoxyethylene ether. 4 parts of ethylene glycol, 8 parts of propanol, 2 parts of isobutanol and 20.8 parts of microbial flocculant AJ 700; the mixed components are added to a heat preservation device set at 30°C to form a mixed liquid.

[0026] (2) Stirring: Stir the mixed liquid slowly for 2.5 hours;

[0027] (3) Standing: the mixed liquid after stirring is left standing at room temperature for 4 hours;

[0028] (4) Preservation: The mixed solution after standing is sealed and stored in a light-tightening manner.

[0029] The finished product produced is A.

Embodiment 2

[0031] (1) Mixing: Mix 5 tons of raw materials according to the following mass parts, 45 parts of nonylphenol polyoxyethylene ether, 32 parts of polyoxypropyl polyoxyethyl glycerol ether, and 24 parts of alkylphenol polyoxyethylene ether. 5.4 parts of ethylene glycol, 10.8 parts of propanol, 1.8 parts of isobutanol and 2.4 parts of microbial flocculant PF101; the mixed components are added to a heat preservation device set at 30°C to form a mixed liquid.

[0032] (2) Stirring: Stir the mixed liquid slowly for 4 hours;

[0033] (3) Standing: the mixed liquid after stirring is left standing at room temperature for 6 hours;

[0034] (4) Preservation: The mixed solution after standing is sealed and stored in a light-tightening manner.

[0035] The finished product produced is B.

Embodiment 3

[0037] (1) Mixing: 3 tons of raw materials are mixed according to the following mass parts, 36 parts of nonylphenol polyoxyethylene ether, 30 parts of polyoxypropyl polyoxyethyl glycerol ether, and 21 parts of alkylphenol polyoxyethylene ether A mixture of parts, 5.7 parts of ethylene glycol, 7.6 parts of propanol, 1.9 parts of isobutanol, and a mixture of microbial flocculant AJ7002, 0.64 parts and PF101, 0.96 parts; add the mixed components to a heat preservation device set at 30°C , Forming a mixed liquid.

[0038] (2) Stirring: Stir the mixed liquid slowly for 3 hours;

[0039] (3) Standing: The mixed liquid after stirring is left standing at room temperature for 5 hours;

[0040] (4) Preservation: The mixed solution after standing is sealed and stored in a light-tightening manner.

[0041] The finished product produced is C.

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Abstract

The invention discloses a deformer special for treating landfill leachate, relates to the technical field of defoaming in the treatment process of high-concentration landfill leachate in environmental engineering, and belongs to the technical category of auxiliary medicaments for treating high-concentration organic waste water and preparation. The deformer comprises the following main components: nonylphenol ethoxylates, polyoxypropylene-polyoxyethylene glycerin ether, alkylphenol ethoxylates, low-carbon alcohol and microbial flocculant; the special deformer is used as an auxiliary process for treating the landfill leachate, so the problems of poor effluent water quality, high cost of production management, environmental pollution and the like are solved, and the deformer is easy and convenient to operate, efficient, energy-saving and low in operating cost, can be used in all main stream processes for treating the landfill leachate by a biochemical method, and has the wide applicationprospect.

Description

Technical field [0001] The invention relates to a medicament for eliminating foam generated during the treatment of landfill leachate, relates to the technical field of defoaming in the treatment of high-concentration landfill leachate in environmental engineering, and belongs to the technical category of high-concentration organic wastewater treatment medicament and its preparation . Background technique [0002] The use of defoamers can be traced back to the beginning of the last century. The large-scale development of industries such as papermaking, food fermentation, starch wastewater treatment, and coking wastewater treatment are increasingly dependent on defoamers, which have become a bottleneck restricting the development of these industries. . my country is a large country producing defoamers. At present, four types of conventional defoamers: polyether, polysilicon, polyester, and high-carbon alcohol defoamers are produced and used. The defoamers currently produced in o...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/52
Inventor 郑阳华魏振李素慧王莹曹源夏小洪李丽娜
Owner SHANGHAI HUALIZHEN ENVIRONMENTAL PROTECTION TECH
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