Ammonia-nitrogen wastewater resourceful treatment system and treatment method of ammonia-nitrogen wastewater resourceful treatment system

A treatment system, ammonia nitrogen wastewater technology, applied in multi-stage water treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problem of high consumption of iron carbon and hydrogen peroxide, decreased total nitrogen content of ammonium salts, and secondary pollution of the surrounding environment and other problems, to achieve the effect of small solid waste output, small floor space and simple installation

Active Publication Date: 2016-05-25
南京颐维环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This process can effectively reduce the probability of sticky tubes caused by long-term operation of the evaporator, but it has the following disadvantages: (1) The pretreatment process is long, and the pH must be adjusted frequently, which increases the operating intensity; (2) The pH of the iron-carbon micro-electrolysis process The value is constantly increasing, and a certain amount of aeration is required at the same time, so the loss of ammonia nitrogen in the ammonium salt-containing wastewater is caused, t

Method used

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  • Ammonia-nitrogen wastewater resourceful treatment system and treatment method of ammonia-nitrogen wastewater resourceful treatment system

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Embodiment 1

[0041] A resource-based treatment system for ammonia-nitrogen wastewater according to the present invention, the system includes a water collection tank 1, a buffer tank 2, a regulating tank 3, a first buffer tank 4, an MVR evaporation system 5, a regulating tank 6, and an adsorption system 7. The second buffer tank 8, ammonia nitrogen removal system 9; the sump 1, the buffer tank 2, the regulating tank 3, the first buffer tank 4, the MVR evaporation system 5, the regulating tank 6, the adsorption system 7, the second buffer tank 8. The ammonia nitrogen removal system 9 is equipped with an inlet and an outlet;

[0042] The outlet of the sump 1 is connected with the inlet of the buffer tank 2, the outlet of the buffer tank 2 is connected with the inlet of the regulating tank 3, and the outlet of the regulating tank 3 is connected with the inlet of the first buffer tank 4, The outlet of the first buffer tank 4 is connected to the inlet of the MVR evaporation system 5, the outlet...

Embodiment 2

[0070] The difference between embodiment 2 and embodiment 1 is that: the front portion of the sump 1 is provided with a grid device; For large suspended solids, the outlet of the coarse grid is connected to the inlet of the fine grid through pipes, the gap of the fine grid is 8mm, and the outlet of the fine grid is connected to the pipeline sump 1;

[0071] The adjusting kettle 3 adjusts the pH value of the wastewater to 6 during the stirring process; the residence time of the wastewater in the adjusting kettle 3 is 80min, and thiourea dioxide is first added in the kettle, and the added quality of the thiourea dioxide is 0.3% of the wastewater quality, and then the adsorption Powdered activated carbon, the mass of activated carbon added is 0.8% of the waste water quality, the anti-coking agent inhibits the oxidation and polymerization of aromatic organic matter in waste water to produce tar-like substances under high temperature conditions, activated carbon absorbs and removes ...

Embodiment 3

[0094] The difference between embodiment 3 and embodiment 1 is that: the front portion of the sump 1 is provided with a grid device; For large suspended solids, the outlet of the coarse grid is connected to the inlet of the fine grid through pipes, the gap of the fine grid is 10mm, and the outlet of the fine grid is connected to the pipe sump 1;

[0095] The regulating kettle 3 is stirring to adjust the pH value of the wastewater to 5, and the residence time of the wastewater is 30min. In the kettle, dimethyl disulfide is first added, and the quality of dimethyl disulfide is 0.5% of the wastewater quality, and then the adsorbent is added Powdered activated carbon, the mass of activated carbon added is 1.5% of the waste water quality. The anti-coking agent inhibits the oxidation and polymerization of aromatic organic matter in waste water to produce tar-like substances under high temperature conditions. Activated carbon absorbs and removes organic matter in waste water, thereby ...

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Abstract

The invention discloses an ammonia-nitrogen wastewater resourceful treatment system and a treatment method of the ammonia-nitrogen wastewater resourceful treatment system. The ammonia-nitrogen wastewater resourceful treatment system comprises a water collection tank, a buffering tank, an adjusting kettle, a first buffering tank, an MVR evaporation system, an adjusting tank, an adsorption system, a second buffering tank and an ammonia-nitrogen removing system, which are connected in sequence, wherein each of the water collection tank, the buffering tank, the adjusting kettle, the first buffering tank, the MVR evaporation system, the adjusting tank, the adsorption system, the second buffering tank and the ammonia-nitrogen removing system is provided with an inlet and an outlet. The ammonia-nitrogen wastewater resourceful treatment system has the advantages of concise pre-treatment device, small occupied area, convenience for operation, sanitary working environment, good purification effect, no secondary pollution and small solid waste output, and can be used for efficiently recycling ammonia-nitrogen resources in wastewater in an ammonium salt form; output water of the system can be reused as reclaimed water.

Description

technical field [0001] The invention relates to the field of salty wastewater treatment, in particular to an ammonia nitrogen wastewater resource treatment system and a treatment method thereof. Background technique [0002] As an emerging industrial country, China produces a wide variety of industrial wastewater with a huge volume. The discharge of wastewater has seriously affected the watershed environment and the health of residents. Among them, the direct discharge of high-ammonia nitrogen wastewater will damage the local ecological environment. The eutrophication of the waters has caused the death of a large number of fish and shrimp, and wasted valuable ammonia nitrogen. Therefore, when treating this type of wastewater, not only the wastewater must be discharged up to the standard, but also the ammonia nitrogen resources must be recovered. [0003] At present, the treatment methods of ammonia nitrogen wastewater mainly include stripping method, steam stripping method, ...

Claims

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Application Information

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IPC IPC(8): C02F9/10
CPCC02F1/001C02F1/04C02F1/283C02F1/285C02F1/42C02F1/52C02F1/66C02F9/00C02F2001/425C02F2101/16C02F2301/08
Inventor 付博张涛周乔杨光辉
Owner 南京颐维环保科技有限公司
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