Discussion on how to treat hotel sewage

The biological contact method mainly fills the tank with filler. When the oxygenated sewage flows through the biofilm on the filler at a certain speed, it will be absorbed and utilized by microorganisms on the biofilm, thus removing pollutants in the sewage and purifying the sewage.

Two: coalescence filtration method

Coalescence filtration method mainly adopts lipophilic and hydrophobic materials. When oily wastewater passes through this material, tiny oil droplets gather on its surface to form an oil film. When it reaches a certain thickness, it leaves the surface of the filter material under the buoyancy and shear force of the water flow, forming relatively large oil droplets floating to the water surface, thus separating oil from water.

Three: electrochemical methods

In this method, when the electrolyte solution undergoes electrochemical reaction under the action of current, the toxic substances in the solution undergo redox reaction at the anode and cathode, and are reduced to low molecular weight organic substances or directly oxidized to CO2 and H2O.