High-salt and high-nitrogen wastewater treatment device

A wastewater treatment and high nitrogen technology, which is applied in water/sewage treatment, multi-stage water/sewage treatment, heating water/sewage treatment, etc. It can solve the problems of difficult treatment of high-salt and high-nitrogen wastewater and large area of ​​the treatment system. , to achieve the effect of less scaling, reduced floor space, and easy expansion

Pending Publication Date: 2022-06-24
武汉中测联环境技术有限公司
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Problems solved by technology

[0003] Therefore, the present invention provides a high-salt and high-nitrogen wastewater treatment device to solve the problems in the prior art that high-salt and high-nitrogen wastewater is difficult to treat and the treatment system occupies a large area

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Embodiment Construction

[0023] The following specific embodiments are used to illustrate the embodiments of the present invention. Those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Terms such as "up", "down", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. The change or adjustment of the relative relationship shall also be regarded as the scope of the present invention without substantially changing the technical content.

[0024] see Figures 1 to 2 , The high-salt ...

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Abstract

The invention discloses a high-salt and high-nitrogen wastewater treatment device, and relates to the technical field of wastewater treatment. The high-salt and high-nitrogen wastewater treatment device comprises an air flotation pretreatment device and an MVR evaporator, the MVR evaporator comprises a compressor, a separator, a plate heat exchanger and a circulating pump, the circulating pump is connected between the plate heat exchanger and the separator, and a water outlet of the air flotation pretreatment device is connected with the separator through a wastewater conveying pipe. According to the invention, firstly, the air flotation pretreatment device is used for carrying out air flotation treatment on the wastewater to complete heavy metal removal and air flotation oil removal, then the MVR evaporator is used for carrying out evaporation concentration on the wastewater, and one MVR evaporator can replace one traditional wastewater treatment production line, so that the occupied space of the device is greatly reduced, and the effluent reaches the standard by 100%; the circulating pump is arranged between the separator and the plate heat exchanger, forced circulation is achieved, and the device has the advantages of being high in heat conduction efficiency, easy to expand, high in concentration rate, not prone to scaling and the like.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a high-salt and high-nitrogen wastewater treatment device. Background technique [0002] The total nitrogen in the wastewater produced by precious metal processing includes ammonia nitrogen, organic nitrogen and nitrate nitrogen, so the nitrate nitrogen content in the pickling nitric acid wastewater is relatively high, and the total nitrogen concentration reaches 40,000 mg / l, but the COD and BOD5 are low, and it contains Cu, Hg, Pb and other heavy metal pollutants, so the waste water from precious metal processing belongs to high-salt and high-nitrogen waste water. The existing sewage treatment system covers a large area and still has a high salt content, which cannot meet the environmental protection discharge standards. SUMMARY OF THE INVENTION [0003] Therefore, the present invention provides a high-salt and high-nitrogen wastewater treatment device to solve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10F28D9/00F28F3/02C02F101/16C02F101/20
CPCC02F9/00F28D9/00F28F3/02C02F2101/16C02F2101/20C02F1/24C02F1/04C02F1/40C02F1/5281
Inventor 魏彬彬胡宏明
Owner 武汉中测联环境技术有限公司
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