CN205473172U - Novel recycled water system - Google Patents

Abstract

A new type of reclaimed water system, including a regulation tank, anoxic tank, MBR biochemical reaction tank, sludge tank and clean water disinfection tank arranged in sequence. Oxygen tank, anoxic tank and MBR biochemical reaction tank adjacent to the pool wall is provided with an outlet pipe, the MBR biochemical reaction tank is equipped with a submerged flat membrane module, the upper end of the submerged flat membrane module is connected to the top of the pool body through a suction pipe The lower end of the suction pump is connected to the Roots blower through the ventilation pipe, and the ventilation pipe is connected to the aeration pipe network at the bottom of the MBR biochemical reaction tank. The mud pump is provided with a mud discharge pipeline connected to the sludge tank, the clean water disinfection tank is provided with a pipeline connected to the ultraviolet sterilizer, and the clean water tank is provided with a clean water pipeline connected to the reclaimed water pipe network. There is a discharge pipe.

Description

A New Type of Reclaimed Water System

technical field

The utility model relates to the field of sewage treatment, in particular to a reclaimed water recycling system for flat membrane filtration.

Background technique

The rapid development of membrane technology has had a major impact on many fields, especially in the sewage treatment process. Membrane bioreactors combine the biodegradation function of traditional biological treatment technology and the efficient separation function of membrane separation technology. It has significant advantages such as high pollutant removal efficiency in sewage, stable effluent quality, convenient operation and management, and small footprint, and its application prospects are very broad. However, in the MBR membrane technology for sewage treatment, the MBR membrane pollution treatment is complicated and expensive, and the conventional physical cleaning method is simple, but the cleaning is not thorough enough; and the external immersion chemical cleaning needs to consume manpower and resources, and the membrane module is taken out for cleaning. Slow and inconvenient, and incomplete cleaning; MBR membrane treatment system of the prior art, the membrane is easily polluted during long-term use, resulting in a continuous decline in membrane flux, which seriously affects the treatment efficiency, high membrane loss, and a substantial increase in cost.

Contents of the invention

Aiming at the deficiencies of the prior art, the utility model provides an integrated treatment process, which can be buried shallowly in the ground or placed on the surface. The sludge treatment efficiency is high, and there is basically no sludge generated. The membrane is aerated while filtering. The system washes and beats the membrane to prevent pollution, prolong the service life of the membrane, and realize a new type of recycled water system for recycling.

In order to realize the purpose of this utility model, the following technical solutions are provided: a new type of reclaimed water system, which is characterized in that it includes a regulating pool, anoxic pool, an MBR biochemical reaction pool, a sludge pool, and a clean water disinfection pool arranged in sequence, and the regulating pool There is a grid pool near the upper left end of the body, the grid pool and the adjustment pool share the pool wall, the water inlet pipe is set on the shared pool wall, the mechanical grid is installed in the grid pool, and the outlet is opened near the bottom of the right end of the grid pool. At the mouth of the water tank, an aeration pipeline is arranged at the bottom of the regulating pool, and the aeration pipeline is connected to a fan. There is an outlet pipe on the wall adjacent to the MBR biochemical reaction pool. The MBR biochemical reaction pool is equipped with a submerged flat-plate membrane module, and the upper end of the submerged flat-plate membrane module is connected to the suction pump above the pool body through the suction pipe The lower end is connected to the Roots blower through the ventilation pipe, and the ventilation pipe is connected to the aeration pipe network at the bottom of the MBR biochemical reaction tank at the same time. There is a backwash pipeline, which is connected to the clean water tank, and the suction pump is also provided with an outlet pipeline connected to the clean water disinfection tank. The sludge discharge pump at the bottom of the MBR biochemical reaction tank is equipped with a sludge discharge pipeline connected to the sludge tank, and the clean water disinfection tank is equipped with pipelines The ultraviolet sterilizer is connected, and the clean water tank is provided with a clean water pipeline connected to the reclaimed water pipe network. The top of the anoxic tank is provided with a sealing end cover, and a pressure discharge pipe is provided on the sealing end cover.

Preferably, the top of the pressure discharge pipe is a tapered nozzle, and a rubber ball is arranged in the nozzle, and the diameter of the rubber ball is larger than the minimum diameter of the tapered nozzle.

Preferably, a supernatant return pipe is provided near the top of the sludge tank, and the supernatant return pipe is connected to the adjustment tank.

Beneficial effects of the utility model: the utility model greatly simplifies the equipment structure by concentrating the whole process equipment in one shell, and sets the aeration pipe network in the MBR biochemical reaction tank, and makes the membrane The sheets beat each other to shake off the calcified sludge attached to the surface of the membrane pores, which greatly increases the membrane flux, prolongs the service life of the membrane, effectively prevents membrane pollution, increases the membrane flux, has high treatment efficiency and low production cost.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

Embodiment 1: a kind of novel regenerated water system, comprises regulating pond 1, anoxic pond 2, MBR biochemical reaction pond 3, sludge pond 4 and clear water disinfection pond 5 arranged successively, and the near upper left end in regulating pond 1 pond body body is provided with The grid pool 1.1, the grid pool 1.1 and the adjustment pool 1 share the pool wall, the water inlet pipe 1.2 is set on the shared pool wall, the mechanical grid 1.3 is set in the grid pool 1.1, and the right end of the grid pool 1.1 is opened near the bottom of the pool wall There is a water outlet slot 1.4, the bottom of the adjustment pool 1 is provided with an aeration pipeline 1.5, and the bottom of the pool is provided with two sewage lifting pumps 1.6, and the sewage lifting pump 1.6 is connected to the anoxic pool 2 through a pipeline, and the anoxic pool 2 is equipped with a submersible Mixer 2.1, an outlet pipe 2.2 is provided on the pool wall adjacent to the anoxic tank 2 and the MBR biochemical reaction tank 3, and the submerged flat membrane module 3.1 is arranged in the MBR biochemical reaction tank 3, and the upper end of the submerged flat membrane module 3.1 passes through The suction pipe 6 is connected to the suction pump 7 above the pool body, and the lower end is connected to the Roots blower 9 through the ventilation pipe 8, and the ventilation pipe 8 is connected to the aeration pipe network 10 at the bottom of the MBR biochemical reaction tank 3 at the same time, and the MBR biochemical reaction tank 3 The bottom end is provided with a return sludge pump 3.2 pipes connected to the anoxic pool 2, the suction pipe 6 is provided with a backwash pipe 11, the backwash pipe 11 is connected to the clean water tank 12, and the suction pump 7 is also provided with an outlet pipe 13 connected to The clear water disinfection pool 5, the mud discharge pump 3.3 at the bottom of the MBR biochemical reaction pool 3 is provided with a mud discharge pipeline 14 connected to the sludge pool 4, the clear water disinfection pool 5 is provided with a pipeline connected to the ultraviolet sterilizer 15, and the clear water pool 5 is provided with a clear water pipeline 16 connected to the middle Water pipe network, the top of the anoxic pool 2 is provided with a sealing end cover 2.3, and the sealing end cover 2.3 is provided with a pressure discharge pipe 2.4. The top of the pressure discharge pipe 2.4 is a tapered nozzle, and a rubber ball 2.5 is arranged in the nozzle, and the diameter of the rubber ball 2.5 is larger than the minimum diameter of the tapered nozzle. A supernatant return pipe 17 is arranged near the top of the sludge tank 4 , and the supernatant return pipe 17 is connected to the regulating tank 1 .

Claims (3)

1. A novel reclaimed water system, characterized in that it comprises a regulating tank, an anoxic tank, an MBR biochemical reaction tank, a sludge tank and a clear water disinfection tank arranged in sequence, and a grid tank is arranged at the upper left end of the regulating tank body. The grid pool and the adjustment pool share the same pool wall, the shared pool wall is provided with a water inlet pipe, the grid pool is equipped with a mechanical grille, the right end of the grid pool is provided with a water outlet near the bottom of the pool wall, and the bottom of the adjustment pool is provided with an exposure The air pipeline and the aeration pipeline are connected to the fan, and two sewage lifting pumps are installed at the bottom of the pool. The sewage lifting pump is connected to the anoxic pool through the pipeline. A submersible mixer is installed in the anoxic pool. There is an outlet pipe on the top, and the MBR biochemical reaction tank is equipped with a submerged flat membrane module. The upper end of the submerged flat membrane module is connected to the suction pump above the pool body through the suction pipe, and the lower end is connected to the Roots blower through the ventilation pipe. At the same time, it is connected to the aeration pipe network at the bottom of the MBR biochemical reaction tank. The bottom of the MBR biochemical reaction tank is provided with a return sludge pump pipeline connected to the anoxic tank, and a backwash pipeline is also provided on the suction pipeline, and the backwash pipeline is connected to the clean water tank. , the suction pump is also provided with an outlet pipe connected to the clean water disinfection tank, the sludge discharge pump at the bottom of the MBR biochemical reaction tank is provided with a mud discharge pipe connected to the sludge tank, the clean water disinfection tank is provided with a pipe connected to the ultraviolet sterilizer, and the clean water tank is provided with a clean water pipe connection To the reclaimed water pipe network, a sealing end cover is arranged on the top of the anoxic tank, and a pressure discharge pipe is arranged on the sealing end cover. 2. A new type of reclaimed water system according to claim 1, characterized in that the top of the pressure discharge pipe is a tapered nozzle, and a rubber ball is arranged inside the nozzle, and the diameter of the rubber ball is larger than the minimum diameter of the tapered nozzle. 3. A new type of reclaimed water system according to claim 1, characterized in that a supernatant return pipe is provided near the top of the sludge tank, and the supernatant return pipe is connected to the regulating tank.