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Method for preparing compound organic fertilizer from river sludge

An organic fertilizer and river technology, which is applied in the field of environmental engineering to achieve the effect of low production cost and high sludge utilization rate

Inactive Publication Date: 2020-06-09
SHANGHAI FANGHEZHENG ENVIRONMENT ENG TECH DEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the prior art, there is a large amount of sludge in the polluted river, and the treatment of the river sludge in the prior art is only to salvage or suck the sludge, and the river sludge has been cleaned; the cleaned sludge Mud is usually dried and discarded

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  • Method for preparing compound organic fertilizer from river sludge
  • Method for preparing compound organic fertilizer from river sludge
  • Method for preparing compound organic fertilizer from river sludge

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Embodiment Construction

[0010] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0011] Such as figure 1 As shown, the present embodiment provides a method for utilizing river sludge to manufacture compound organic fertilizer, comprising the steps:

[0012] S1 is used to obtain the step of river sludge;

[0013] S2 is used for the step of pretreating river sludge;

[0014] S3 is used for the step of carrying out dehydr...

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Abstract

The invention discloses a method for preparing a compound organic fertilizer from river sludge. The method comprises the following steps: S1, obtaining river sludge; S2, pretreating the river sludge;S3, carrying out dewatering treatment on the river sludge; S4, removing heavy metals in the river sludge; and S5, carrying out fermentation treatment on the river sludge to form an organic fertilizer.According to the method for preparing the composite organic fertilizer by utilizing the river sludge, heavy metals in the river sludge are removed, and then fermentation treatment is carried out, sothat the organic fertilizer is formed, the river sludge is turned into wealth, the production cost is low, and the sludge utilization rate is high.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a method for producing compound organic fertilizer from river sludge. Background technique [0002] In the prior art, there is a large amount of sludge in the polluted river, and the treatment of the river sludge in the prior art is only to salvage or suck the sludge, and the river sludge has been cleaned; the cleaned sludge Mud is generally dried and discarded. If there is a method to process the sludge salvaged or suctioned to form organic fertilizer rich in organic nutrients, the sludge can be reused, which not only has low manufacturing cost, but also can turn waste into treasure. Contents of the invention [0003] The purpose of the invention is to provide a method for making compound organic fertilizer from river sludge. [0004] The method for producing compound organic fertilizer from river sludge provided by the present invention comprises the follo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F17/00C02F11/04C02F11/121
CPCC02F11/04C02F11/121C05F7/00C05F17/00C05F11/00C05F11/08Y02W30/40
Inventor 金方伟
Owner SHANGHAI FANGHEZHENG ENVIRONMENT ENG TECH DEV CO LTD
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