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Efficient domestic sewage treatment system

A domestic sewage and treatment system technology, applied in the field of water treatment, can solve the problems of sustainable utilization of unfavorable energy, increased cost of sewage treatment, low organic matter content, etc., to increase fermentation speed and gas production, enhance gas production activity, and improve biological volume effect

Active Publication Date: 2021-06-04
李霞芬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of urban domestic sewage is large, the content of organic matter is still relatively low, and the content of dissolved oxygen in the water is also high, resulting in low biogas production, which is not suitable for the production of biogas by traditional biogas production technology. Therefore, urban domestic sewage is often processed. Microorganisms are used to ammonify, nitrify, and denitrify before being discharged. This process not only consumes a lot of energy, but also needs to supplement carbon sources in the denitrification stage due to insufficient carbon sources, resulting in an increase in sewage treatment costs. The organic matter in sewage It is also directly decomposed by microorganisms, which is not conducive to the sustainable use of energy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A high-efficiency treatment system for domestic sewage, comprising:

[0032] 1) a collection pool, which is used to collect domestic sewage, and a water level monitoring device is arranged in the collection pool;

[0033] 2) biogas production system, which includes a deaeration tank and a biogas tank, the deaeration tank communicates with the collection tank through a pipeline, the pipeline is provided with an electric control valve, and the deaeration tank is provided with a stirring device, Heating device, temperature sensing device and first negative pressure generating device, the first negative pressure generating device is used to remove oxygen in the sewage; a first pump body is arranged between the biogas tank and the deaeration tank to The sewage in the deaeration pond is pumped into the biogas digester, the biogas digester is a closed cavity, the bottom of the biogas digester is in the shape of a pot bottom, and the bottom of the biogas digester is provided wi...

Embodiment 2

[0042] A high-efficiency treatment system for domestic sewage, comprising:

[0043] 1) a collection pool, which is used to collect domestic sewage, and a water level monitoring device is arranged in the collection pool;

[0044] 2) biogas production system, which includes a deaeration tank and a biogas tank, the deaeration tank communicates with the collection tank through a pipeline, the pipeline is provided with an electric control valve, and the deaeration tank is provided with a stirring device, Heating device, temperature sensing device and first negative pressure generating device, the first negative pressure generating device is used to remove oxygen in the sewage; a first pump body is arranged between the biogas tank and the deaeration tank to The sewage in the deaeration pond is pumped into the biogas digester, the biogas digester is a closed cavity, the bottom of the biogas digester is in the shape of a pot bottom, and the bottom of the biogas digester is provided wi...

Embodiment 3

[0053] A high-efficiency treatment system for domestic sewage, comprising:

[0054] 1) a collection pool, which is used to collect domestic sewage, and a water level monitoring device is arranged in the collection pool;

[0055] 2) biogas production system, which includes a deaeration tank and a biogas tank, the deaeration tank communicates with the collection tank through a pipeline, the pipeline is provided with an electric control valve, and the deaeration tank is provided with a stirring device, Heating device, temperature sensing device and first negative pressure generating device, the first negative pressure generating device is used to remove oxygen in the sewage; a first pump body is arranged between the biogas tank and the deaeration tank to The sewage in the deaeration pond is pumped into the biogas digester, the biogas digester is a closed cavity, the bottom of the biogas digester is in the shape of a pot bottom, and the bottom of the biogas digester is provided wi...

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Abstract

The invention discloses a high-efficiency treatment system for domestic sewage, comprising: 1) a collection pool for collecting domestic sewage; 2) a biogas production system for efficiently producing biogas; 3) a nitrogen removal system for cultivating in algae Nitrifying bacteria and chlorella are cultivated in the bend to absorb the nutrients in the biogas slurry; 4) The controller is used to control the operation of the system. The sewage treatment method of the present invention has the characteristics of high methane production, high sewage treatment capacity and the like.

Description

technical field [0001] The invention relates to the technical field of water treatment. More specifically, the present invention relates to a high-efficiency domestic sewage treatment system. Background technique [0002] Urban domestic sewage contains more organic matter, including carbohydrates, proteins, amino acids, fatty acids, oils, esters and other substances, which are highly biodegradable. However, the amount of urban domestic sewage is large, the content of organic matter is still relatively low, and the content of dissolved oxygen in the water is also high, resulting in low biogas production, which is not suitable for the production of biogas by traditional biogas production technology. Therefore, urban domestic sewage is often processed. Microorganisms are used to ammonify, nitrify, and denitrify before being discharged. This process not only consumes a lot of energy, but also needs to supplement carbon sources in the denitrification stage due to insufficient ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCC02F1/20C02F1/70C02F3/2806C02F3/325C02F9/00C02F2209/02C02F2209/03C02F2209/42C02F2301/063
Inventor 李霞芬
Owner 李霞芬