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High salt content organic wastewater treatment device

A technology for organic wastewater treatment and high salt content, applied in multi-stage water treatment, water/sewage treatment, heating water/sewage treatment, etc., can solve the problem of volatile organic compound removal in condensed water, not considered, evaporation chamber The feasibility of heat and moisture transfer solves problems such as structural damage of the evaporation chamber, achieving good application prospects, reducing energy consumption, and facilitating classification and recycling.

Active Publication Date: 2017-07-28
NANJING TECH UNIV
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Problems solved by technology

However, for the treatment of high-salt organic wastewater, no consideration has been given to the continuous evaporation of the solution in the evaporation chamber, the increase in the organic content of the solution, the increase in the viscosity of the solution, the limited feasibility of heat and moisture transfer in the evaporation chamber, and the structural damage of the evaporation chamber. problem; also does not consider the removal of volatile organic compounds carried by condensate water

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  • High salt content organic wastewater treatment device
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Embodiment Construction

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner.

[0040] The new type of high-salt organic wastewater treatment device in this embodiment originally utilizes the characteristics that the temperature of dry air increases, its saturated moisture content increases, and the rate of increase of saturated moisture content increases significantly after 50°C, making full use of the characteristics of air The huge humidity difference brought about by the temperature rise enables the air to absorb the moisture in the waste liquid.

[0041] The condensing sections of the condensing regenerator and the condensing-adsorption regenerator used in the present invention are finned tube heat exchangers with the same size and structure. Activated carbon is selec...

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Abstract

The invention discloses a high salt content organic wastewater treatment device. The device comprises an ultrafiltration pretreatment part, a low-temperature evaporation part and a high-efficiency adsorption and condensation part. According to the wastewater treatment method disclosed by the invention, moisture recovery in a low-temperature environment is realized by utilizing the characteristic that the moisture carrying capacity of air is obviously improved along with temperature rise, the evaporated steam and volatile organic compounds pass through the condenser and are condensed to enter an adsorber to be adsorbed, so that the BOG (Boil Off Gas) and COD (Chemical Oxygen Demand) are further reduced, and the recovery standard is reached. According to the device disclosed by the invention, the high salt content organic wastewater produced in the production processes of chemical industries such as petrochemical engineering, food industry, superfine processing and the like can be effectively solved. The device has the advantages of low energy consumption, zero pollution, high production efficiency and the like and has a good application prospect.

Description

technical field [0001] The invention relates to a high-salt organic wastewater treatment device, which can effectively solve the high-salt organic wastewater produced in the production processes of petrochemical, food industry, fine processing and other chemical industries by organically combining ultrafiltration, evaporation and adsorption. Background technique [0002] With the rapid development of modern economy, the contradiction between industrial development and environmental protection has become increasingly prominent. In particular, the large amount of wastewater produced in industrial production has always been the focus of attention. Industrial wastewater mainly comes from petrochemical, food, pharmaceutical, coal mine, paper and other industries. In addition to common soluble inorganic salts, microorganisms, and suspended solids, it also contains various organic matter, starch, clay, etc. If it is discharged directly without treatment, it will pose a huge threa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F101/30
CPCC02F9/00C02F2101/30C02F1/04C02F1/281C02F1/444C02F2201/007C02F2301/08
Inventor 凌祥柯廷芬李洋黄鑫刘威宏
Owner NANJING TECH UNIV
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