Bentonite sewage water treating method

A bentonite sewage and treatment method technology, which is applied in the field of sewage treatment, can solve the problems of high price of cetyltrimethylammonium bromide, unfavorable survival and reproduction of microorganisms, slow sedimentation speed, etc., and achieve strong adsorption and flocculation capabilities and low cost , the effect of less sludge

Active Publication Date: 2008-09-03
浙江华特新材料有限公司
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Problems solved by technology

The cetyltrimethylammonium bromide used in this patent has a high price, and the sedimentation speed is slow, and more sludge is deposited. The bromi

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  • Bentonite sewage water treating method

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[0007] The present invention is described in further detail below in conjunction with the examples: the following table is the required ratio of bentonite, surfactant, flocculant raw materials and the number of kilograms per ton of sewage purification treatment.

[0008]

[0009] Now take the hotel sewage as an example to illustrate its treatment method: first measure and calculate the total amount of sewage with the volume of the sewage tank, and then compare the raw materials and kilograms of the hotel sewage in Example 1 in the table: input calcium base (or sodium base) per ton of sewage Or acid) 0.2kg of bentonite was stirred for 15 minutes, then the input concentration was 0.18kg of octadecyltrimethylammonium chloride of 24%, stirred for 20 minutes, and then the concentration of input was 1% of polyacrylamide 0.2kg and polychlorinated Aluminum 0.1kg, stirred for 15 minutes, settled for 30 minutes, the supernatant liquid was pumped out with a water pump, and the lower la...

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Abstract

A bentonite sewage handling method is to grind the calcium base or the sodium base or the acid bentonite into 101 to 600 meshes and then pour the calcium base or the sodium base or the acid bentonite into the awaiting sewage to stir. Then, 24 percent of octadecyl trimethyl ammonium chloride is poured into the sewage and stirred; then a flocculent is poured into the sewage and stirred and settled, and the water-soil separation, microorganism treatment and standard discharge are carried out. The weight ratio of the sewage and any kind of bentonite is 1000:0.1 to 1000:1.0; the dosage ratio of the bentonite and the octadecyl trimethyl ammonium chloride is 1:1 to 1.5:1; the dosage ratio of the bentonite and the flocculent is 1:1.5 to 4:1. The method can be used for treating hotel sewage and oilfield sewage and has the advantages of low treatment cost, wide application range, and less sludge deposit. Furthermore, the method does not affect the successive microorganism treatment.

Description

technical field [0001] The invention relates to a method for treating sewage by using bentonite, surface active agent and flocculant to act together to combine adsorption and coagulation. Background technique [0002] CN1462726 discloses the patented technology of "organic bentonite synthesis-wastewater treatment integrated method" of Zhejiang University, which uses organic bentonite as adsorbent and cetyltrimethylammonium bromide as surfactant, and puts it into sewage in a certain proportion for purification deal with. The cetyltrimethylammonium bromide used in this patent has a high price, a slow settling speed, and more sludge deposited. Its bromide ions are not good for the survival and reproduction of microorganisms, and have negative effects on the subsequent biological purification treatment. Contents of the invention [0003] The purpose of the present invention is to aim at the above-mentioned deficiency of prior art, provide a kind of bentonite sewage treatment ...

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Application Information

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IPC IPC(8): C02F1/28C02F1/52C02F9/14
Inventor 王春伟单小松汤静芳姚珍莲
Owner 浙江华特新材料有限公司
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