Concave convex rod sewage treatment agent and its production method

A technology of sewage treatment agent and production method, which is applied in adsorption water/sewage treatment, flocculation/sedimentation water/sewage treatment, separation method, etc. And the effect of wide pH value range, good dehydration performance, easy storage and transportation

Inactive Publication Date: 2005-03-23
许庆华
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  • Abstract
  • Description
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Problems solved by technology

"The processing method is not described in detail. For example, whether bentonite, kaolin, and carnallite use raw ore or processed products; 20-26% concentrated hydrochloric acid by weight percentage (the actual concentration of concentrated hydrochloric acid is not clear) , without dilution, directly added to the mixture of bentonite, iron powder, aluminum ash, kaolin, and carnallite, it is difficult to stir evenly, because bentonite, iron powder, aluminum ash, kaolin, and carnallite The water absorption rate of the above-mentioned invention is extremely strong; whether the finished product of the above invention is granular or powder is not specified; sewage treatment is a wide-ranging and large-scale work, which requires the use of a large amount of sewage treatment agent, and some of the above-mentioned inventions are purchased raw materials, there will be some difficulty

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with embodiment.

[0023] 1. Material selection: There are many types of attapulgite clay, and attapulgite clay with better adsorption performance should be selected to remove visible miscellaneous stones and other foreign matter, and let it weather naturally for 45 days to continuously disintegrate into smaller irregularities Lumps, and to dry, moisture should be ≤ 13%, alum should use better quality crystal alum, general starch can not be used, must be modified starch.

[0024] 2. Ingredients (1) (percentage by weight): attapulgite clay 60%, water 37% and sulfuric acid (concentration is 98%) 3%.

[0025] 3. Acidification: Slowly add sulfuric acid to water, spray it on the attapulgite clay, put it into the mixer, stir it evenly and pile it together, the sulfuric acid and various substances in the attapulgite clay react chemically to achieve the purpose of activation , Activated at room temperature fo...

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Abstract

A sewage treating agent with high speed and effect is prepared from attapulgite clay through acidifying, baking, adding alum and modified starch, and grinding. The generated mud is a good organic fertilizer.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to an attapulgite sewage treatment agent and a production method. Background technique [0002] With the development of industry and agriculture, strengthening the scientific and technological development of environmental protection has become an important subject of relevant scientific research departments. Various new products for environmental protection have been put into production continuously, and good results have been achieved. At present, there are many kinds of materials used for sewage treatment in chemical, brewing, pharmaceutical, papermaking and other industries, mainly including: activated carbon, diatomaceous earth, zeolite, bentonite, attapulgite clay, and other chemical preparations. [0003] Chinese Patent No. 99118670, date of authorization announcement February 19, 2003, title of invention: "Preparation method of an industrial sewage treatment agent", di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/01C02F1/28C02F1/52
Inventor 许庆华
Owner 许庆华
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