Excrement centralized processing method

A technology for centralized treatment and excrement, which is applied in the field of resource treatment, reduction, and harmless urban excrement. It can solve the problems of difficult urban excrement treatment and achieve the effect of reducing load.

Active Publication Date: 2010-02-24
北京昊业怡生科技有限公司
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Problems solved by technology

[0004] The purpose of the invention is to solve the difficult problem of existing urban excrement treatment

Method used

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  • Excrement centralized processing method

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Embodiment Construction

[0032] Such as figure 1 Shown, the method for concentrated treatment of feces of the present invention adopts the following steps:

[0033] (1) Solid-liquid separation

[0034] Fecal sewage enters the fecal solid-liquid separation system through the excrement discharge port. The solid-liquid separation system has a treatment capacity of 1.5-2.5m 3 / min, shock tolerance 3m 3 / min. The solid matter with a particle size of more than 10mm in the fecal debris is removed, the solid content in the treated filtrate is lower than 5%, and the moisture content of the separated solid matter is between 45% and 70%. The separated solid waste is transported in a closed manner, and transported to a landfill for disposal. The filtrate enters the first regulating tank, which mainly plays the role of homogenizing, equalizing and temporarily storing in the treatment system, so as to prepare for entering the next processing unit for processing. The height of the final solid material outlet is...

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Abstract

The invention relates to an excrement centralized processing method, comprising the steps of solid-liquid separation, flocculation water removing, aerobic compost treatment, anaerobic sewage treatment, facultative anaerobic sewage treatment, aerobic sewage treatment, membrane anaerobic reacting sewage treatment and odor treatment. Treated with the processing method of the invention, the urban night soil is 100% decontaminated, is 99.7% minimized and the excrement sludge is completely changed into resource.

Description

technical field [0001] The invention relates to an urban feces treatment process, in particular to a harmless, volume reduction and resourceful treatment process for urban excrement. Background technique [0002] With the acceleration of the urbanization process, excrement has increasingly become a problem in major cities. According to the statistical results of 2006 in Beijing alone, there are more than 16.5 million people. If each person discharges 500g of feces per day, 8.25 million kilograms of feces are produced every day. The feces discharged by each person per day contain 18.6 grams of nitrogen and 1.74 grams of phosphorus. It can pollute 10 tons of water, and 8.25 million kilograms of feces can pollute 8.25 million tons of water. Feces cannot be allowed to pollute the water source, but the direct entry of feces into the municipal pipe network will bring huge pressure to the municipal sewage treatment system, resulting in substandard water output and even paralysis o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/12C05F17/00C02F9/14C02F3/30C02F1/52C05F3/04
CPCY02A40/20Y02E50/30Y02W30/40
Inventor 于景成田丹靳国良
Owner 北京昊业怡生科技有限公司
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