Sewage sludge compost and preparation method of sewage sludge compost

A sludge and compost technology, applied in the field of fertilizers, can solve the problems of filter screen blockage, low dehydration efficiency, only reaching about 85%, etc., and achieves the effect of low cost, remarkable effect and cost reduction.

Inactive Publication Date: 2012-07-25
江苏田娘农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The dehydration rate of belt filter press equipment commonly used in sewage treatment plants can only reach about 85%. Centrifugal dehydration has problems such as filter blockage and low dehydration efficiency. Moisture in the sludge is not easy to escape

Method used

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  • Sewage sludge compost and preparation method of sewage sludge compost
  • Sewage sludge compost and preparation method of sewage sludge compost

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Embodiment Construction

[0028] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0029] A kind of sludge compost provided by the invention, the composition of this sludge compost and its weight ratio comprise:

[0030] 2-6 parts of sludge;

[0031] Plant ash 0.5-1.5 parts;

[0032] Straw powder 0.1-0.3 parts;

[0033] Mushroom residue 0.5-1.5 parts;

[0034] Chicken manure 0.5-1.5 parts;

[0035] 0.5-1.5 parts of starter.

[0036] The composition of preferred sludge compost and its weight ratio in the present invention comprise:

[0037] 4 parts of sludge;

[0038] 1 part plant ash;

[0039] 0.2 parts of straw powder;

[0040] 1 part mushroom residue;

[0041] 1 part chicken manure;

[0042] 1 part starter.

[0043...

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Abstract

The invention discloses sewage sludge compost. The compositions of the sewage sludge compost comprises the following components in proportion by weight: 2-6 parts of sewage sludge, 0.5-1.5 parts of plant ash, 0.1-0.3 part of straw powder, 0.5-1.5 parts of mushroom residue, 0.5-1.5 parts of chicken manure, and 0.5-1.5 parts of leavening agent. In the above way, the invention provides the sewage sludge compost and a preparation method of the sewage sludge compost, the sewage sludge is transformed into high-quality organic fertilizer for greening, reduce the cost, so that the environmental pollution is reduced, the cost of processing sewage sludge by dehydrating is reduced, and the fermentation treatment of the sewage sludge is accelerated; and the sewage sludge compost has the characteristics of obvious efficiency and low cost.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a sludge compost and a preparation method. Background technique [0002] With the growth of our country's population, economic development and urbanization, the urban sewage treatment industry has developed rapidly, and the amount of sludge discharged from urban sewage treatment plants has also increased rapidly. The problem of urban domestic sludge disposal is imminent. [0003] At present, there are four types of sludge disposal methods in foreign countries: landfill, incineration, throwing into the sea and resource utilization. Among the first three methods, throwing into the sea has been banned by international conventions, and the restrictions of the other two methods are gradually reduced due to environmental pressure and economic pressure, while the resource utilization of sludge is getting more and more attention. It is one of the outlets for sludge treatment and disposal th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F17/00
CPCY02W30/40
Inventor 黄任良王强陆裕夏伟肖磊
Owner 江苏田娘农业科技有限公司
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