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Nitrogen-containing wastewater treatment system

A wastewater treatment system and deamination technology, applied in the direction of pathogenic microbial wastewater treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of reagent addition, high energy consumption, recycling, etc., to improve biochemical The effect of improving treatment efficiency and biochemical efficiency

Active Publication Date: 2021-11-12
江苏御镐智能制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Physicochemical methods generally have the advantage of being fast and efficient, but they usually require the addition of reagents and high operating costs
[0003] However, the current biochemical and physicochemical methods remove ammonia nitrogen as a pollutant, and do not recycle it as a resource. The current treatment method not only wastes nitrogen sources, but also has the characteristics of high energy consumption. Therefore, there is an urgent need for a method that can A low-energy treatment system that recovers nitrogen sources to treat nitrogen-containing wastewater

Method used

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Embodiment 1

[0035] A certain medical wastewater has about 493mg / L of ammonia nitrogen, about 1286mg / L of total nitrogen, about 4310mg / L of COD, and about B / C≈0.17. Then enter the pretreatment device to remove large particles in the wastewater, and then pass into the zeolite pool to absorb ammonia nitrogen. The ammonia nitrogen in the effluent is 129mg / L, and the total nitrogen is 713mg / L. 239mg / L, total nitrogen 321mg / L, the ammoniated effluent is transported to the second-stage zeolite pool for ammonia nitrogen adsorption, the effluent ammonia nitrogen concentration is 89mg / L, and then the wastewater enters the deamination pool for deamination to obtain wastewater with an ammonia nitrogen concentration of 23mg / L. The wastewater enters the Fenton pool and the biochemical pool for treatment in turn, and finally obtains effluent with a COD of 43mg / L.

[0036] Among them, the zeolite in the zeolite pool and the second-stage zeolite pool is regenerated in the regeneration pool to produce ammo...

Embodiment 2

[0038] A certain medical wastewater has about 43mg / L of ammonia nitrogen, about 1682mg / L of total nitrogen, about 6521mg / L of COD, and about B / C≈0.12. Then enter the pretreatment device to remove large particles in the wastewater. The effluent from the pretreatment device enters the ammoniation tank for ammoniation treatment. The ammonification effluent ammonia nitrogen is 211mg / L, and the total nitrogen is 431mg / L. The ammonification effluent is transported to the zeolite tank for ammonia nitrogen adsorption. The concentration of ammonia nitrogen in the effluent is 63mg / L, and then the wastewater enters the deamination tank for deamination to obtain wastewater with an ammonia nitrogen concentration of 19mg / L.

[0039] Among them, the zeolite in the zeolite pool is regenerated by the regeneration pool to produce ammonia liquid, which is transported to the iron-carbon pool for micro-electrolysis treatment, and the treated ammonia nitrogen wastewater is transported to the sedimen...

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Abstract

The invention relates to a nitrogen-containing wastewater treatment system. The system sequentially comprises an ammonification tank, a zeolite tank, a deamination tank, an iron-carbon tank and a sedimentation tank, outlet water of the iron-carbon tank is conveyed to the sedimentation tank, the deamination tank comprises an anode chamber (1) and a cathode chamber (2), a diaphragm (3) is arranged between the anode chamber (1) and the cathode chamber (2), the anode chamber (1) is provided with a water inlet (11), an anode (12) and a deamination liquid outlet (13), and the cathode chamber (2) is provided with an ammonia liquid outlet (21) and a cathode plate (22); the ammonia liquid outlet (21) is connected with the iron carbon tank, the deamination liquid outlet is connected with a Fenton pool, the Fenton pool is connected with a biochemical pool, and the sedimentation tank is provided with a sedimentation agent inlet. The nitrogen-containing wastewater treatment system disclosed by the invention can be used for effectively treating nitrogen-containing wastewater.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a nitrogen-containing wastewater treatment system. Background technique [0002] Nitrogen in wastewater mainly exists in four forms, organic nitrogen (protein, amino acid, urea, amine nitro compounds, etc.), ammoniacal nitrogen, nitrite nitrogen, and nitrate nitrogen. In untreated raw wastewater, organic nitrogen Nitrogen and ammoniacal nitrogen are the main forms of nitrogen. Nitrogen can cause eutrophication of water bodies, resulting in deterioration of water quality and even lake degradation. The oxidation of NH3-N will consume the dissolved oxygen in the water, causing the water to become black and smelly, and the water quality will decline, which will affect the survival of aquatic animals and plants. NO2-N and NO3-N in the water will be more harmful to humans and aquatic organisms . And under the action of microorganisms, the form of nitrogen is constantly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/16
CPCC02F9/00C02F1/469C02F1/66C02F1/28C02F1/5254C02F3/34C02F1/722C02F1/725C02F3/30C02F2101/16C02F2103/003C02F2305/10
Inventor 何力波周凯旋
Owner 江苏御镐智能制造有限公司