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Method of achieving zero-emission to high salt wastewater generated in industrial production

A high-salt wastewater, zero-discharge technology, applied in the field of zero-discharge of high-salt wastewater, can solve the problem of lack of treatment technology for reverse osmosis concentrated water, and achieve the effect of improving wastewater concentration efficiency, reducing scaling and corrosion.

Inactive Publication Date: 2017-08-29
北京必可测科技股份有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, reverse osmosis concentrated water lacks effective treatment technology and still needs external drainage

Method used

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  • Method of achieving zero-emission to high salt wastewater generated in industrial production
  • Method of achieving zero-emission to high salt wastewater generated in industrial production

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Embodiment 1

[0034] This embodiment provides a method for zero discharge of high-salt wastewater produced in industrial production, such as figure 1 As shown, when the discharge quantity Q of high-salt wastewater per unit time in industrial production is less than or equal to the quantity Q of high-salt wastewater that can be evaporated by the flue gas treatment device per unit time 0 When the high-salt wastewater is directly treated with flue gas evaporation;

[0035] When the amount Q of high-salt wastewater discharged per unit time in industrial production is greater than the amount Q of high-salt wastewater that can be evaporated per unit time by the flue gas treatment device 0 When the high-salt wastewater is concentrated by a low-temperature multi-effect evaporation concentration device, it is then evaporated and concentrated;

[0036] The heating steam of the low-temperature multi-effect evaporation and concentration device adopts the waste heat steam in industrial production. The ...

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Abstract

The invention discloses a method of achieving zero-emission to high salt wastewater generated in industrial production. The method includes the steps of: feeding the high salt wastewater into a flue gas treatment device, through which water in the high salt wastewater is heated and is completely evaporated to form water vapor; the pollutants in the high salt wastewater are converted into solid crystallized salts; and feeding the water vapor into a desulfurization absorption column for a desulfurization reaction. The method can completely achieve zero-emission to high salt wastewater generated in industrial production, thus achieving the effect of saving energy and reducing emission.

Description

technical field [0001] The invention relates to the technical field of waste water recycling, in particular to a method for zero discharge of high-salt waste water generated in industrial production. Background technique [0002] In recent years, with the acceleration of my country's industrialization and urbanization, the contradiction between water resource shortage and environmental constraints and economic development has become increasingly prominent, and the country is gradually implementing stricter and stricter energy conservation and emission reduction policies and pollutant discharge control standards . During the "Twelfth Five-Year Plan" period, the country will continue to increase energy conservation and emission reduction, vigorously promote clean production, develop circular economy and ecological civilization construction, and require enterprises to change to the development mode of "low investment, low consumption, high efficiency and low emission". The mana...

Claims

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Application Information

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IPC IPC(8): C02F1/16
CPCC02F1/16
Inventor 黄俊飞何立荣
Owner 北京必可测科技股份有限公司
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