Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Urban manure disposal method

A treatment method and feces technology, applied in the direction of sludge treatment, separation method, phosphate material treatment, etc., to achieve the effect of improving the working environment and running smoothly and efficiently

Inactive Publication Date: 2013-11-27
ATK HLDG GRP CO LTD
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of treating urban feces, the present invention provides a method for treating urban feces. On the one hand, the method performs harmless treatment on feces, and on the other hand, recycles phosphorus in the feces.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Urban manure disposal method
  • Urban manure disposal method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The following methods are used to treat the feces, which are sourced from urban manure:

[0041] A. In order to ensure the continuous operation of the feces pretreatment device and avoid waiting for the excrement suction truck to unload, a dung discharge tank is set up, and a stirring device is installed in the dung discharge tank. The operation of the stirring device can homogenize the feces. Install coarse grids (fixed grids with a spacing of 15mm) to pre-separate the larger solids and bulky waste materials (fibers and sanitary products, etc.) that still exist in the feces after stirring, so as to protect the good operation of the subsequent equipment;

[0042] B. Use a squeezer to squeeze the large pieces of garbage separated from the coarse grid in step A, so that the large fibers in the feces and other materials are squeezed and dehydrated;

[0043]C. The excrement passing through the coarse grid in step A flows through the fine grid filter, and the fine grid filt...

Embodiment 2

[0052] The following methods are used to treat the manure, and the manure comes from township manure:

[0053] A. In order to ensure the continuous operation of the feces pretreatment device and avoid waiting for the excrement suction truck to unload, a dung discharge tank is set up, and a stirring device is installed in the dung discharge tank. The operation of the stirring device can homogenize the feces. Install coarse grids (fixed grids with a spacing of 15mm) to pre-separate the larger solids and bulky waste materials (fibers and sanitary products, etc.) that still exist in the feces after stirring, so as to protect the good operation of the subsequent equipment;

[0054] B. Use a squeezer to squeeze the large pieces of garbage separated from the coarse grid in step A, so that the large fibers in the feces and other materials are squeezed and dehydrated;

[0055] C. The excrement passing through the coarse grid in step A flows through the fine grid filter, and the fine g...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention provides an urban manure disposal method. According to the method, on one hand, harmless disposal can be performed on manure; on the other hand, phosphorus element in the manure can be recovered. After the manure passes through a manure unloading slot, a coarse grid and a solid-liquid separation integrated machine, manure slurry filtrate can form a mud cake with the solid content of 35-45% after being subjected to flocculation and dehydration treatment, the mud cake can be used as an agricultural fertilizer and can also be used for recovering phosphorus, liquid produced during the treatment process is fed into a sewage treatment plant to be treated, and disgusting odor can be treated specially.

Description

technical field [0001] The invention relates to the technical field of urban excrement treatment methods, in particular to a method for extracting phosphorus from urban excrement. Background technique [0002] With the rapid increase of my country's urban population, urban excrement has also increased in large quantities. Human manure is a resource that has historically been the best organic fertilizer. However, since urban buildings and public toilets are gradually converted to water-flushing types, there are three major problems in the management and utilization of feces: First, urban feces are pulled by fecal suction trucks to rural areas to directly raise fish and vegetables without treatment, which not only pollutes the environment but also spreads Second, some cities use boilers to heat biogas digesters to process urban manure, which not only wastes energy, but also has high operating costs, making it difficult to operate for a long time; third, a few coastal cities i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/12C02F11/14B01D53/85B01D53/52B01D53/58B01D53/72C01B25/01
CPCY02A50/20
Inventor 徐畅潘翼陈立民吕优技
Owner ATK HLDG GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com