Fiber bed sewage treatment method and sewage treatment device

Abstract

The invention provides a fiber bed sewage treatment method and a sewage treatment device for realizing the fiber bed sewage treatment method. During back washing, a fiber bed is unfolded to loosen fibers, so that a back washing medium more easily enters and permeates the fibers to take away dirt permeated into the fibers, and the back washing effect is improved; two ends of the sewage treatment fibers are respectively fixed on a first frame body and a second frame body, and the first frame body and the second frame body can be close to each other or far away from each other, so that the fiber bed is unfolded or closed; and the first frame body and the second frame body can be divided into a first fiber frame, a second fiber frame, a first installation frame and a second installation frame, the first fiber frame, the second fiber frame and sewage treatment fibers fixed between the first fiber frame and the second fiber frame form a sewage treatment plate set, and the sewage treatment plate set can be pushed in and pulled out through guide rails arranged on the installation frames and is convenient to install.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a fiber bed sewage treatment method and a sewage treatment device. Background technique [0002] With the strict requirements of environmental protection, sewage treatment technology has been paid more and more attention to and applied. The use of fiber bed is a relatively new method. "Coalescence Technology and Its Progress for Oil-Water Separation" includes the coalescence method of fiber bed and The effect was discussed, "Study on the Effect of Oil-Water Separation Based on Coalescing Technology" conducted theoretical and experimental discussions on the use of coalescing fibers for sewage treatment, and "Experimental Research on Coalescing and Separation of Emulsified Water in Oil" conducted a theoretical and experimental discussion on coalescing materials compared and analyzed, and proposed a design structure for fiber bed treatment, as well as an optimal scheme for ...

AI Technical Summary

Problems solved by technology

[0002] With the strict requirements of environmental protection, sewage treatment technology has been paid more and more attention to and applied. The use of fiber bed is a relatively new method. "Coalescence Technology and Its Progress for Oil-Water Separation" includes the coalescence method of fiber bed and The effect was discussed, "Study on the Effect of Oil-Water Separation Based on Coalescing Technology" conducted theoretical and experimental discussions on the use of coalescing fibers for sewage treatment, and "Experimental Research on Coalescing and Separation of Emulsified Water in Oil" conducted a theoretical and experimental discussion on coalescing materials compared and analyzed, and proposed a design structure for fiber bed treatment, as well as an optimal scheme for coalescing fibers; the fiber coalescing bed is a kind of packed coalescing bed, the existing fiber coalescing bed, the bed body is fixed , the fiber needs to be laid manually in the tank. In the process of sewage treatment, the oil and suspended solids accumulated in the filter bed gradually increase, the porosity of the filter bed decreases, and the filtration rate increases under the condition of constant flow rate, and the oil droplets on the filter material The driving force of the water flow in the filter increases, and some oil droplets permeate through the filter bed, resulting in a decrease in the oil-water separation efficiency, and a gradual increase in the pressure drop of the filter bed. Generally, the backwash flow rate is several times that of the normal oil-water separation. Under the joint action of water flow driving force and buoyancy, the oil and suspended matter overcome the viscous force, gravity and capillary force, so that the oil and suspended matter are desorbed from the filter bed and float to the top; but the colloidal asphaltenes and large particles in the sewage The diameter polymer will adhere to the filter material, and high-strength backwashing may not be able to wash off some of them. Long-term operation may lead to a decrease in the efficiency of the filter material. Washing method, backwashing and restoring the filter bed; 202010179557.1 A continuous oilfield binary and three-way flooding sewage treatment system proposes a way to restore the system by backwashing

Images