Treatment method of sewage in refined oil depot
A treatment method and oil depot technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as difficult treatment of finished oil depot sewage, and facilitate transportation, installation, and treatment The effect of good effect and good technical effect
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Embodiment 1
[0019] After the sewage from the finished oil depot passes through the grease trap, the effluent is sequentially pre-filtered, first-stage coalescing separator, second-stage coalescing separator, and electro-adsorption reactor.
[0020] The filter element is filled in the pre-filter separator, and the material of the filter element is polymer material, the polymer material is polyethylene, and the filtration precision is 20 μm. In the pre-filter separator, on the one hand, a small amount of slick oil directly rises to the top of the separator to be removed, and on the other hand, the fine particles are intercepted by the filter element, which provides guarantee for the normal operation of the subsequent coalescence oil removal unit.
[0021] The first-stage coalescing separator is filled with a special high-density structured packing, which uses the characteristics of the different affinity of the packing for the oil-water two phases, so that the oil droplets are captured by th...
Embodiment 2
[0026] According to the conditions and steps described in Example 1, a filter element is filled in the pre-filter separator, and the material of the filter element is glass fiber. The first-stage coalescence separator is filled with special high-density structured packing, the material is ceramic, the inclination angle of the packing is 45°, and the corrugation spacing is 100mm. The modified polymer material in the coalescing filter element filled in the secondary coalescing separator is polyacrylonitrile, and the modification method is grafting. During the adsorption reaction process in the electrosorption reactor, the applied cell voltage is 5V, the cathode uses carbon steel electrodes, the anode uses graphite electrodes, the distance between the plates is 100mm, and the columnar activated carbon is filled with a diameter of 6mm and a length of 10mm, and inert particles It is ceramsite, the average particle size is 4mm, the ratio between columnar activated carbon and inert p...
Embodiment 3
[0029]According to the conditions and steps described in Example 1, a filter element is filled in the pre-filter separator. The material of the filter element is glass fiber and polymer material, the polymer material is polyacrylonitrile, and the filtration accuracy is 200 μm. The first-stage coalescing separator is filled with special high-density structured packing, made of stainless steel, the inclination angle of the packing is 40°, and the corrugation spacing is 50mm. The modified polymer material in the coalescing filter element filled in the secondary coalescing separator is polyacrylonitrile, and the modification method is grafting. During the adsorption reaction process in the electrosorption reactor, the applied cell voltage is 10V, the cathode is made of carbon steel electrodes, the anode is made of graphite electrodes, the distance between the plates is 100mm, and the granular activated carbon is filled with an average particle size of 3mm, and the inert particles a...
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