Magnetic suction type treatment process for oil-containing industrial wastewater

Abstract

The invention discloses a magnetic suction type treatment process for oil-containing industrial wastewater, which belongs to the technical field of wastewater treatment, and can ensure that the oil-containing wastewater is in contact with oil drops in the wastewater in the sinking process in a mode of firstly adding magnetized microspheres in the standing process of the oil-containing wastewater; then the disintegration action is triggered and thus suspending in the oil drops by utilizing lipophilicity, and the oil drops are forced to indirectly have magnetism; then, an oil searching fiber rod is added, the oil searching fiber rod is forced to actively get close to the oil drops and make contact with the oil drops through the magnetic adsorption effect of the oil drops, adsorption and recovery of the oil drops in the wastewater are achieved, meanwhile, leakage-proof protection is conducted on absorbed oil dirt, and thus continuing to sink to the bottom; after observing that all the oil-finding fiber rods sink to the bottom, the oil-finding fiber rods sink to the water bottom to recover the magnetized microspheres and the oil-finding fiber rods in a magnet block binding manner, so that unlayered oil drops in the wastewater can be fully recovered, the recovery efficiency is high, the effect is good, the cost is low, secondary pollution is avoided, and the invention can be applied to treatment of oil-containing industrial wastewater on a large scale.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a magnetic treatment process for oily industrial wastewater. Background technique [0002] Sewage refers to the effluent water from domestic and production that is polluted to a certain extent. Water that has lost its original function is simply called sewage. It is mainly the water after daily use, which contains more organic matter and is easier to handle. [0003] From the viewpoint of the source of sewage, sewage can be defined as waste-carrying liquid or water discharged from residential, institutional, commercial or industrial areas mixed with groundwater, surface water, snowstorms, etc. There are many types of sewage, and correspondingly there are many technologies and processes to reduce the impact of sewage on the environment. According to the source of sewage, sewage can be divided into these four categories. [0004] The first category: Industrial wast...

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Problems solved by technology

[0006] Category III: Commercial sewage is non-toxic and harmless sewage from commercial facilities and some components exceed domestic sewage

[0008] General industrial sewage usually contains oil pollution. When the sewage is being treated, the impact and fluctuation of the liquid level will occur continuously when the sewage is passed into the sewage tank, so that many small oil droplets will be doped and sink in the sewage instead of floating in the sewage. On the surface, in the prior art, the sewage in the sewage pool is generally subjected to a certain static treatment, but due to the large amount of sewage and the long standing time, the overall treatment efficiency is likely to be low, and the residual oil droplets in the water cannot be processed. Separation, and the separation efficiency is too low if the oil-water separator is used, it is not suitable for the application of large-scale industrial wastewater

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