Equipment and process for treating wastewater containing high content salt and oil
A waste water treatment, high salt content technology, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., to achieve high degree of automation, low energy consumption, and simple system construction
Pending Publication Date: 2019-09-17
JIUPEI SUZHOU ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a kind of high salinity and oily wastewater treatment equipment and wastewater treatment process to solve the problems existing in the prior art for the treatment of high salt and oily wastewater
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[0026] A high-salt and oily wastewater treatment equipment, including a sand filter device, an ultrafiltration device and an evaporation concentration device 18;
[0027] The sand filter device comprises a water inlet 1, a filtrate outlet 8, and a sand filter 4, the water inlet 1 is arranged on the top of the sand filter 4, the filtrate outlet 8 is arranged on the bottom of the sand filter 4, and the inside of the sand filter 4 is filled with filter material 6, so The top of the sand filter 4 is downwardly equipped with a lifting mechanism 3 that can move up and down from the top of the filter material 6 in the sand filter 4, and the bottom of the sand filter 4 is upwardly equipped with a stirring mechanism 7 that stirs the filter material 6;
[0028] Described ultrafiltration device comprises through pipeline 11, hollow fiber ultrafiltration membrane group 9, water collection box 12; Described hollow fiber ultrafiltration membrane group 9 lower ends connect the filtrate outlet...
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Abstract
The invention discloses equipment and a process for treating wastewater containing high content salts and oils. The equipment comprises a sand filtering device, an ultrafiltration device and an evaporation and concentration device; the technological process comprises the following steps: 1, treating the wastewater containing high content salt and oil by using the sand filtering device to remove the floating oil, the emulsified oil and suspended solids from the wastewater; 2, further removing the oils and the suspended solids from the wastewater, subjected to the treatment in the step 1, by means of the ultrafiltration device; 3, finally, enabling the wastewater, subjected to the treatment in the step 2, to enter the evaporation and concentration device for carrying out desalting treatment. The equipment and the process for treating the wastewater containing high content salt and oil adopt ultrafiltration treatment, thus being capable of removing almost all the oils and suspended solids in water body, and further effectively controlling the problems of low efficiency and poor effect in the subsequent evaporation, concentration and desalination processes. A mechanical vapor recompression (MVR) cryogenic vacuum efficient evaporator is used as the final desalting process, the salts can be effectively removed, and the energy consumption is lower.
Description
technical field [0001] The invention relates to equipment for treating high-salt and oily wastewater and a wastewater treatment process. Background technique [0002] Oily wastewater is a kind of wastewater with large volume and wide range and serious hazards. Its main sources are oily wastewater produced by oil refineries in the petroleum industry; cooling lubricants and emulsified oil wastewater produced in machinery manufacturing; textile industry, food processing industry, The catering industry also discharges a large amount of oily wastewater. Usually this type of oily wastewater has a relatively high salt content and complex components, and direct discharge without treatment will cause serious environmental pollution. [0003] This kind of high-salt and oily wastewater is difficult to treat. For the treatment of oily wastewater, according to the different forms of oil in water, there are usually filtration methods, air flotation methods, adsorption methods, and membra...
Claims
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IPC IPC(8): C02F9/10C02F101/30
CPCC02F1/001C02F1/041C02F1/046C02F1/44C02F9/00C02F2101/30
Inventor 张魁洋禹久泓李飞
Owner JIUPEI SUZHOU ENVIRONMENTAL PROTECTION TECH CO LTD