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Anoxic reactor for effectively improving denitrification and denitrification effects

A reactor and denitrification technology, used in chemical instruments and methods, anaerobic digestion treatment, water treatment parameter control, etc. Improve denitrification efficiency and improve the effect of shock load resistance

Pending Publication Date: 2020-03-24
DAJIANG ENVIRONMENT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the concentration of nitrogen in some industrial wastewater is very high, seriously exceeding the standard, and difficult to treat, the nitrogen pollution of industrial wastewater has attracted much attention
Directly discharging high-concentration nitrate wastewater into rivers pollutes surface water and groundwater, leading to the death or even extinction of aquatic animals and plants. If it pollutes domestic water, it will endanger your health in light cases, and cause death in severe cases, seriously affecting the local economy. Rapid and harmonious development
The traditional sewage treatment process has low efficiency, long process, and high investment and operating costs. For waste liquid denitrification, biological denitrification and denitrification to convert nitrate nitrogen into nitrogen is the most economical and thorough treatment technology. However, the existing industrial The concentration of activated sludge treated by wastewater treatment equipment is limited, the volume of the denitrification section is large, the equipment occupies a large area, and the cost is high; and it has no interception function for activated sludge and bacterial liquid, resulting in low denitrification effect, resulting in low operating efficiency. Unstable, in addition, in the wastewater treatment process in the anoxic reactor, it is necessary to set up a submersible mixer to quickly homogenize the biological bacteria and raw water, and there are problems of high operating costs and difficult maintenance of the submersible mixer

Method used

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  • Anoxic reactor for effectively improving denitrification and denitrification effects
  • Anoxic reactor for effectively improving denitrification and denitrification effects
  • Anoxic reactor for effectively improving denitrification and denitrification effects

Examples

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Effect test

Embodiment 1

[0029] Such as figure 1 , an anoxic reactor for effectively improving the effect of denitrification and denitrification, comprising a reactor tank 1 and a gas-liquid separator 8 at the top of the reactor tank 1; the interior of the reactor tank 1 is sequentially arranged from bottom to top A reaction zone, a three-phase separation zone and a precipitation outlet area; a three-phase separator 5 is arranged in the three-phase separation zone, and an inclined plate / pipe 6 and an outlet weir 7 are arranged from bottom to top in the precipitation outlet zone; the three-phase separation zone The device 5 is connected to the gas-liquid separator 8 through the gas collecting pipe 16, and the bottom end of the gas-liquid separator 8 leads to the bottom of the reactor tank 1 through the return pipe 17; the bottom end of the reactor tank 1 is provided with a water inlet pipe 11, and the waste water passes through The water inlet pipe 11 enters the reactor tank body 1 for purification, an...

Embodiment 2

[0034]The anoxic reactor effectively improving the effect of denitrification and denitrification described in Example 1 is used to treat industrial wastewater. The working process is: the wastewater enters through the water inlet pipe 11, and the sewage is evenly introduced into the reactor tank 1 by the water distribution device 2. In the zone, the high-concentration nitrate in the wastewater is denitrified in the reaction zone. The denitrifying bacteria use nitrate as an electron acceptor, use organic matter as a carbon source and electron donor to provide energy and obtain oxidation stability, and reduce nitrate It is nitrogen, when pH8.0) and carbon-nitrogen ratio2 ) enters the gas-liquid separator 8 through the gas collecting pipe 16, and the waste water enters the sedimentation outlet area from the three-phase separation area further. The loss of sludge and functional bacteria keeps the denitrifying bacteria in a stable working environment for a long time, which is conduc...

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Abstract

The invention discloses an anoxic reactor for effectively improving the denitrification and denitrification effects. The anoxic reactor comprises a reactor tank body and a gas-liquid separator at thetop end of the reactor tank body; a reaction zone, a three-phase separation zone and a precipitation water outlet zone are sequentially arranged in the reactor tank body from bottom to top; a three-phase separator is arranged in the three-phase separation area, and an inclined plate / pipe and an effluent weir are arranged in the precipitation water outlet area from bottom to top; the three-phase separator is connected to the gas-liquid separator through a gas collecting tube, and the bottom end of the gas-liquid separator leads to the bottom of the reactor tank body through a return tube; and awater inlet tube is arranged at the bottom end of the reactor tank body, wastewater enters the reactor tank body through the water inlet tube and is purified, and the purified water flows out from the effluent weir. The anoxic reactor has the advantages of effective avoiding of loss of sludge and special strains, improved volume load, increase of the denitrification efficiency, high nitrate removal rate, saving of the volume and the occupied area of the reactor, and avoiding of the problems of high operation cost and difficult maintenance caused by a submersible stirrer.

Description

technical field [0001] The invention relates to the technical fields of environmental protection engineering and water treatment, and more specifically relates to an anoxic reactor for effectively improving the effect of denitrification and denitrification. Background technique [0002] With the rapid development of the national economy, the water quality of the water body is deteriorating more and more seriously. One of the main pollution factors is nitrogen. The source of nitrogen in the water body is mainly domestic sewage, aquaculture wastewater and industrial wastewater. Because the concentration of nitrogen in some industrial wastewater is very high, seriously exceeding the standard, and difficult to treat, the nitrogen pollution of industrial wastewater has attracted much attention. Directly discharging high-concentration nitrate wastewater into rivers pollutes surface water and groundwater, leading to the death or even extinction of aquatic animals and plants. If it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F101/16
CPCC02F3/2866C02F3/28C02F2209/06C02F2209/04C02F2209/40C02F2101/163
Inventor 马祥刘雪洁王士林胡玖坤
Owner DAJIANG ENVIRONMENT CORP
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