High salt content organic wastewater treatment device

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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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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