Earthworm based rural decentralized sewage treatment system

A sewage treatment system and sewage treatment technology, which is applied in the field of water environmental pollution and treatment, can solve the problems of huge power consumption and inconformity with energy saving and emission reduction, achieve short process flow, promote nitrification and denitrification, and save engineering expenses Effect

Pending Publication Date: 2020-06-02
ANHUI UNIV OF SCI & TECH
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Problems solved by technology

[0004] The above-mentioned improved SBR treatment process suitable for decentralized sewage treatment still requires regular maintenance of the device due to the generation of a small amount of excess sludge, and the device has long relied on automation and remote control technology, which consumes a lot of electricity, which does not meet the national regulations. The call for energy saving and emission reduction for the whole people calls for the design of a rural decentralized sewage treatment system based on earthworms

Method used

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  • Earthworm based rural decentralized sewage treatment system

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Embodiment Construction

[0018] The present invention will be further explained below in conjunction with the accompanying drawings.

[0019] see figure 1 , the present invention comprises a grille 1, a regulating pool 2 is arranged under the grille 1, and the regulating pool 2 is connected to an earthworm biofilter 7 and an improved SBR system 16 suitable for decentralized sewage treatment through a temperature sensing system 3;

[0020] The temperature sensing system 3 includes a flowmeter 4, a temperature sensor 5 and a lift pump 6, the temperature sensor 5 is connected to the lift pump 6, a temperature sensor 5 is set behind the flow meter 4, and when the temperature is too low, the lift pump 6 will transfer the water Enter the improved SBR system 16 suitable for decentralized sewage treatment, otherwise the lift pump 6 pumps water into the earthworm biofilter 7;

[0021] The earthworm biofilter 7 comprises a water accumulation area 13 arranged at the bottom of the filter tank and a rotary water ...

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Abstract

The invention relates to an earthworm based rural decentralized sewage treatment system. The system is composed of a grille, an adjusting tank is arranged below the grille, the adjusting tank is connected to an earthworm biofilter and an improved SBR system suitable for decentralized sewage treatment through a temperature sensing system; the earthworm biofilter is used in warm seasons, by utilizing biodegradation of earthworms, the problems that a traditional biofilter is easily blocked by sludge and the sewage treatment effect is gradually reduced are solved, the sludge discharge amount is also greatly reduced, the improved SBR system suitable for decentralized sewage treatment is used in cold seasons, the technological process is short, the investment and operation cost is low, the impact resistance is high, and the water quality is stable; the two processes are alternately used in warm and cold seasons, so that the power consumption and sludge discharge of the device in the use process are effectively reduced, and the purposes of energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to the technical field of water environment pollution and treatment, in particular to a rural decentralized sewage treatment system based on earthworms. Background technique [0002] In recent years, the state has continued to increase its support for rural environmental contiguous improvement projects. Rural sewage treatment is one of the key contents of new rural construction and ecological civilization creation. At the same time, in response to the call for national energy conservation in the "Regulations of the People's Republic of China on Public Energy Conservation", attention should be paid to energy conservation while strengthening rural environmental improvement. At the present stage, there are very few projects in China that pay equal attention to rural sewage treatment and energy conservation, so projects that pay equal attention to rural sewage treatment and energy conservation are imperative. [0003] For example, a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/50C02F3/1263C02F3/32C02F3/34C02F9/00C02F2001/007
Inventor 周晨
Owner ANHUI UNIV OF SCI & TECH
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