Method and device for performing combined treatment on sewage and bottom mud in black-odor riverway

A technology for combined treatment and river bottom sludge, applied in chemical instruments and methods, aerobic process treatment, biological sludge treatment, etc., can solve the problems of secondary pollution of chemicals, increase treatment costs, etc., and achieve low output and impact load resistance. The effect of strong ability and large biomass

Active Publication Date: 2016-03-23
JIANGSU YULONG ENVIRONMENTAL PROTECTION
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Problems solved by technology

In this way, not only the processing cost is increased, but also the added chemicals are likely to cause secondary pollution

Method used

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  • Method and device for performing combined treatment on sewage and bottom mud in black-odor riverway

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Technical scheme of the present invention comprises the following steps:

[0022] 1) Collect the black and odorous river sewage into the reaction tank, use microorganisms to degrade the organic matter in the water, and convert the ammonia nitrogen in the water into nitrate nitrogen;

[0023] 2) Pump the river sediment into another tank and mix it with the treated water in step 1), use the injected acid-producing bacteria and denitrifying bacteria to convert nitrate nitrogen into nitrogen gas and remove it, and make the sediment in the sediment Heavy metals and phosphates are removed by chemical precipitation;

[0024] 3) After sedimentation of the mixed water after the reaction in step 2), discharge the effluent and sludge separately, and return part of the effluent to the pool in step 1) to further reduce the total nitrogen of the effluent; at ...

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Abstract

The invention relates to a method for performing combined treatment on sewage and bottom mud in a black-odor riverway. The method includes the following steps that sewage in the black-odor riverway is collected into a reaction tank, organic matter in the water is degraded through microorganisms, ammonia nitrogen in the water is converted into nitrate nitrogen, bottom mud in the riverway is mixed in the water, treatment is performed through acid production bacteria and denitrifying bacteria, and nitrate nitrogen in water and heavy metal and phosphate in the bottom mud are removed. Then, proper anaplerosis is performed on the treated water and the treated sludge. Meanwhile, a device applying the method is disclosed. The device comprises an aerobiotic MBBR reaction tank and a riverway bottom mud fermentation coupling denitrifying pool which are adjavcently connected. The method and the device are reasonable in design, the technology is advanced, riverway sewage treatment and riverway bottom mud treatment can be coupled in one system, sewage and sludge can be treated at the same time, the treatment efficiency is improved, and secondary pollution is eliminated.

Description

technical field [0001] The invention relates to a sewage treatment method and device, in particular to a method and device capable of simultaneously treating sewage and sediment in black and odorous rivers, specifically a method for jointly treating sewage and sediment in black and odorous rivers Methods and Apparatus. Background technique [0002] At present, the main cause of black and odorous urban rivers is that the pollutants entering the river exceed the self-purification capacity of the river, causing the dissolved oxygen in the water to be below 0.2 mg / L, making the water anoxic and anaerobic. In anoxic and anaerobic conditions, the pollutants in the river channel are transformed into malodorous substances such as ammonia nitrogen, hydrogen sulfide, and volatile acids, as well as iron sulfide and manganese sulfide, which make the water black, seriously affecting the life and health of residents, as well as the appearance of the city. For river channel management, on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/08C02F3/12C02F11/04
CPCC02F3/08C02F3/1268C02F11/04C02F2103/001C02F2301/043Y02W10/10
Inventor 黄东辉苏高强赵勇史群毓蒋燕
Owner JIANGSU YULONG ENVIRONMENTAL PROTECTION
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