Method for making organic biological flower pots and granules from dewatered sludge

A technology for dewatering sludge and organic organisms, applied in the direction of sewage/sludge fertilizer, organic fertilizer, application, etc., to achieve the effect of reducing fertilization, good social benefits, and reducing secondary pollution

Inactive Publication Date: 2011-11-30
CHINA MACHINERY INT ENG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sludge treatment method of "adding curing agent - mixing and stirring - moisture content below 60% - landfill" is simple and easy to implement, but this method fails to make resource utilization of dewatered sludge

Method used

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  • Method for making organic biological flower pots and granules from dewatered sludge
  • Method for making organic biological flower pots and granules from dewatered sludge

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Experimental program
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Embodiment Construction

[0013] Dewater the sludge formed by domestic sewage treatment, so that the moisture content of the dewatered sludge is not higher than 80%, and the dewatered sludge containing the organic components of the maintenance plants and the moisture content is not higher than 80% is placed in the stirring container. Add CaO as curing and disinfectant, add degradable plant fiber material as molding core material, mix and stir with mixing equipment, solidify and disinfect the sludge, and the mixing time is generally 15-15 according to the difference in the moisture content of the sludge. After 30 minutes, it is transported to pressing equipment for pressing and forming, and after forming, it is naturally air-dried for 5 to 7 days (the moisture content is reduced to 40% to 45%) to become a finished product.

[0014] The weight ratio of the dewatered sludge is 90%-93%, the added amount of CaO is 5%-8%, and the added amount of degradable plant fiber is 2%-4%.

[0015] Dewatered sludge cont...

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Abstract

The method for making organic biological flower pots and granules from dewatered sludge, using dehydrated sludge containing organic components for plant maintenance and having a moisture content not higher than 80%, adding CaO as a curing and disinfectant, and adding degradable plant fiber substances as molding The core bone material is mixed and stirred by mixing equipment, and the sludge is solidified and sterilized, and then transported to the pressing equipment for pressing and forming, and after forming, it is naturally air-dried to become a finished product; the weight ratio of the dewatered sludge is 90% to 93% , the addition of CaO is 5% to 8%, and the addition of degradable plant fiber material is 2% to 4%.

Description

Technical field [0001] The invention relates to a method for manufacturing organic biological flower pots or granules by using dewatered sludge treated with domestic sewage. Background technique [0002] Invention Patent Application No. 200810035009.0 published on September 3, 2008 discloses "a method for treating dewatered sludge from a domestic sewage treatment plant". The treatment method is that the moisture content of the dewatered sludge is not higher than 80%, adding MgO and MgCl 2 As a curing agent, mix and stir evenly for curing, so that the moisture content is lower than 60%, and landfill treatment is carried out after reaching the landfill standard. The sludge treatment method of "adding solidifying agent—mixing and stirring—water content lower than 60%—landfilling" is simple and easy to implement, but this method fails to make resource utilization of dewatered sludge. Contents of the invention [0003] The purpose of the present invention is to provide a meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/10C05F7/00
CPCY02A40/20
Inventor 王梅强李大毅吴玉华黄茂林
Owner CHINA MACHINERY INT ENG DESIGN & RES INST
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