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A solid carbon source micro-aeration device and its wastewater treatment method

A solid carbon source, micro-aeration technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as inability to efficiently remove waste water, and reduce the generation of nitrate nitrogen. , Overcome the difficult effect of dissolved oxygen concentration control

Active Publication Date: 2021-03-30
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing coal chemical industry wastewater treatment technology cannot efficiently remove total nitrogen from wastewater with a low carbon-to-nitrogen ratio, and to provide a solid carbon that improves the total nitrogen removal rate of wastewater with a low carbon-to-nitrogen ratio in coal chemical industry. Source micro-aeration device and wastewater treatment method thereof

Method used

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  • A solid carbon source micro-aeration device and its wastewater treatment method
  • A solid carbon source micro-aeration device and its wastewater treatment method
  • A solid carbon source micro-aeration device and its wastewater treatment method

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specific Embodiment approach 1

[0033] Specific implementation mode one: combine Figure 1~5 To illustrate this embodiment, a solid carbon source micro-aeration device for improving the total nitrogen removal rate of low-carbon-to-nitrogen ratio wastewater in coal chemical industry includes a water intake area 27, a short-range nitrification area 28, a nitrification sludge precipitation area 8, and a denitrification water intake area 11 and denitrification zone 29;

[0034] The tank body 26 is sequentially divided from left to right into an inlet area 27, a short-range nitrification area, and a short-range nitrification area. Area 28, nitrification sludge sedimentation area 8, denitrification water inlet area 11 and denitrification area 29; wall 7-2, the lower end of the upper left wall 7-1 of the nitrification sludge sedimentation tank is connected with the upper end of the lower left wall 7-2 of the nitrification sludge sedimentation tank, and the lower left wall 7-2 of the nitrification sludge sedimentat...

specific Embodiment approach 2

[0051] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the first solid carbon source 6-1 is polycaprolactone or polybutylene succinate; the second solid carbon source 6-1 is Source 6-2 is polycaprolactone or polybutylene succinate. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0052] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the first water distribution tray 4-1 is evenly distributed with a plurality of holes with a diameter of 2 mm to 3 mm, and the hole spacing is 10 mm to 3 mm. 12mm. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a solid carbon source micro-aeration device for improving the removal rate of total nitrogen in low-carbon-nitrogen-ratio wastewater produced in coal chemical industry and a wastewater treating method using the same, belonging to the field of wastewater treatment. The objective of the invention is to solve the problem that conventional treatment technologies for wastewater of the coal chemical industry are incapable of realizing highly-efficient removal of the total nitrogen in the wastewater with the low carbon-nitrogen ratio. The device provided by the invention comprises a wastewater inlet zone, a short-range nitrification zone, a nitrified sludge sedimentation zone, a denitrification water inlet zone and a denitrification zone. The method comprises the followingsteps: 1, water inflowing; 2, short-range nitrification; and 3, denitrification. The solid carbon source micro-aeration device and the wastewater treating method using the same provided by the invention are applicable to improving the removal rate of the total nitrogen in low-carbon-nitrogen-ratio wastewater produced in the coal chemical industry.

Description

technical field [0001] The invention belongs to the field of wastewater treatment. Background technique [0002] Coal-to-gas, one of the modern coal chemical industries, converts coal into clean combustible gas, which can meet the country's advocacy of clean energy, so it has been widely developed. However, coal-to-gas is a high-water-consuming industry with a large amount of wastewater discharged. As a typical coal chemical wastewater, its wastewater treatment has always been a difficult point in research at home and abroad. This is mainly because coal chemical wastewater contains high concentrations of unit phenols, multiple Phenols, heterocyclic aromatic hydrocarbons, long-chain alkanes, and ammonia nitrogen. At present, the physical and chemical process coupling biochemical process is mainly used to treat coal chemical wastewater at home and abroad. These methods include coagulation and adsorption treatment process, micro-electrolysis process, anaerobic biological trea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F101/16
CPCC02F3/302C02F2101/16
Inventor 韩洪军张正文徐春艳郑梦启
Owner HARBIN INST OF TECH