CN113666577A

CN113666577A - Environment-friendly wastewater treatment system and equipment thereof

Info

Publication number: CN113666577A
Application number: CN202111004605.4A
Authority: CN
Inventors: 张礼武
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2021-11-19

Abstract

The invention provides an environment-friendly wastewater treatment system and equipment thereof, and relates to the technical field of wastewater treatment. The environment-friendly wastewater treatment equipment comprises a quick filtering mechanism, wherein the quick filtering mechanism comprises a first shell, a filter plate is fixedly connected inside the first shell, a first air bag is fixedly connected inside the first shell, a first piston is fixedly connected outside the first air bag, and a first recovery shell is fixedly connected to the bottom end of the first shell. This environment-friendly effluent disposal system and equipment admits air through the intake pipe, and the negative pressure will mix the air current of microbial powder and pass through the fixed tube and inhale elasticity arc shell, through repeated extrusion for the air current fully dissolves with the water, when increasing aeration area, improves the efficiency of denitrogenation dephosphorization, and the check valve of a casing inside is convenient for control, is convenient for absorb the dross, carries out a lot of filtration, detaches nitrogen phosphorus, improves membrane bioreactor's operating efficiency and working effect.

Description

Environment-friendly wastewater treatment system and equipment thereof

Technical Field

The invention relates to the technical field of wastewater treatment, in particular to an environment-friendly wastewater treatment system and equipment thereof.

Background

The environment-friendly wastewater treatment system and the equipment thereof in the prior art have the following problems:

first, prior art's CASS system, although the system flow is simple, area is less, but its system nitrogen and phosphorus removal inefficiency, prior art's AO technology, sludge concentration is higher in the sewage anaerobic digestion technology, when tertiary treatment easily, makes membrane bioreactor's diaphragm department take place the filth siltation, causes the membrane pollution among the membrane bioreactor, thereby restricts membrane bioreactor's operating efficiency and work effect, causes adverse effect for relevant dirty waste water high efficiency stable treatment.

Secondly, the aeration plate of the wastewater treatment equipment in the prior art is easy to be blocked under the condition of high sludge concentration, and the floating slag and floating oil on the surface of sewage are easy to block the decanter when the decanter is used for decanting water in the CASS equipment in the prior art, and the filtering times of the existing CASS equipment are less, so that the nitrogen and phosphorus removal efficiency is low, and the water quality is also influenced.

In order to solve the problems, the inventor provides an environment-friendly wastewater treatment system and equipment thereof, air is fed through an air inlet pipe, airflow mixed with microbial powder is sucked into an elastic arc-shaped shell through a fixed pipe by negative pressure, the airflow is fully dissolved with a water body through repeated extrusion, the nitrogen and phosphorus removal efficiency is improved while the aeration area is increased, a one-way valve in a shell I is convenient to control, scum is convenient to absorb, multiple times of filtration are carried out, nitrogen and phosphorus are removed, and the operation efficiency and the working effect of a membrane bioreactor are improved.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an environment-friendly wastewater treatment system and equipment thereof, which have the advantages of high practicability and high reliability and solve the problems of low practicability and low reliability.

In order to achieve the purposes of high practicability and high reliability, the invention provides the following technical scheme: the utility model provides an environment-friendly waste water treatment equipment, includes quick filtering mechanism, quick filtering mechanism is including casing one, the inside fixedly connected with filter plate of casing one, the inside fixedly connected with gasbag of casing one, the outside fixedly connected with piston one of gasbag, the shell is retrieved to the bottom fixedly connected with of casing one, consequently, is convenient for control through the inside check valve of casing one for water and inside flocculation and dross are inhaled, and the sieve mesh that is passed through casing one by the inspiratory water spills, is convenient for absorb the dross, and submerge through the biomembrane shell, make the water filter through getting into the biomembrane shell, detach nitrogen phosphorus.

Preferably, the first piston and the first shell are fixedly connected with the spring, the inside of the first shell is fixedly connected with the one-way valve, the direction of the one-way valve is the same, and sieve holes are formed in the recycling shell and the inside of the first shell, so that filtering is facilitated through the sieve holes.

Preferably, still including energy-conserving mechanism, energy-conserving mechanism is including the turbine, the inside of turbine is rotated and is connected with connecting axle one, the bottom of connecting axle one is provided with the connecting pipe, the outside of connecting pipe is rotated and is connected with casing three, the inside fixedly connected with elasticity arc shell of casing three, the fixed pipe of inside fixedly connected with of elasticity arc shell, the outside joint of connecting pipe has the turning block.

Preferably, connecting axle one all is connected with gear revolve with the connecting pipe, two gear intermeshing, connecting pipe and intake pipe swing joint, fixed pipe and connecting pipe swing joint, elasticity arc shell and turning block sliding connection, the inside and the check valve fixed connection of casing three, consequently, admit air through the intake pipe, the negative pressure will be mixed the air current of microorganism powder and inhale elasticity arc shell through the fixed pipe, through repeated extrusion for air current and water fully dissolve, when increasing the aeration area, improve the efficiency of nitrogen and phosphorus removal.

Preferably, the device further comprises a control mechanism, the control mechanism comprises a floater, the bottom end of the floater is connected with a second piston in a transmission mode, the inner thread of the second piston is connected with a screw rod, the outer side of the second piston is connected with an elastic shell in a sliding mode, one end, far away from the second piston, of the screw rod is movably connected with a support, one end, far away from the screw rod, of the support is connected with a biological membrane shell in a rotating mode, and the bottom end of the biological membrane shell is fixedly connected with a water outlet pipe.

Preferably, the right-hand member of support is moulded water storage shell fixed connection with light, the inside of biomembrane shell is provided with through-hole and biofiltration membrane, the outlet pipe is moulded water storage shell fixed connection with light, biomembrane shell and casing fixed connection.

Preferably, the filter further comprises a shell, the energy-saving mechanism is movably connected inside the shell, the control mechanism is movably connected inside the shell, the rapid filtering mechanism is movably connected inside the shell, and the partition plate is fixedly connected inside the shell.

An environment-friendly wastewater treatment system comprising: a wastewater tank, a grid, an equipment treatment subsystem, an aerobic reaction tank, a PH regulation tank, a disinfection tank, sludge discharge and dehydration;

the wastewater tank is used for collecting and idling sewage, so that high-temperature wastewater discharged in a short period can be balanced and cooled, and acidic sewage and alkaline sewage can be neutralized;

the grating is used for intercepting massive suspended solid pollutants and partial sludge through the mechanical transmission of the coarse grating and the mechanical transmission of the fine grating;

the equipment treatment subsystem is used for carrying out sand setting, aeration, filtration and water decanting treatment on the wastewater in a centralized manner;

an aerobic reaction tank for aerobic aeration reaction to treat the wastewater;

PH adjustment, namely adjusting the pH of the treated wastewater to enable the wastewater to reach a usable pH value;

the disinfection tank is used for carrying out disinfection treatment on the regulated wastewater and recycling the wastewater;

sludge is discharged, the wastewater treated by the equipment is filtered and then the sludge at the bottom is discharged for dehydration and landfill;

and (4) dewatering, namely dewatering the solid garbage treated by the grid and performing landfill treatment.

Wherein the treatment subsystem comprises anaerobic pre-reaction, aeration, filtration, anaerobic biomembrane filtration and decanting;

anaerobic pre-reaction, wherein anaerobic bacteria are discharged together through an air inlet pipe, and the anaerobic bacteria digest and decompose aged sludge;

aerating, wherein micro bubbles are generated in the sewage through air and are used as carriers, so that pollutants such as emulsified oil, micro suspended matters and the like in the sewage are adhered to the bubbles;

filtering, namely collecting emulsified oil, micro suspended matters and other pollutants in the bubbles;

the anaerobic biological membrane is used for filtering, and the wastewater flows on the surface of the biological membrane to form the back diffusion of oxygen and pollutants, so that the pollutants are effectively removed;

and (4) decanting, namely decanting the clear water from the interior of the equipment tank, and ensuring the quality of the effluent without stirring the sediment.

Wherein the grating is connected with the dehydration, the decanting water is connected with the sludge discharge, and the decanting water is connected with the aerobic reaction tank.

Advantageous effects

Compared with the prior art, the invention provides an environment-friendly wastewater treatment system and equipment thereof, which have the following beneficial effects:

1. this environment-friendly effluent disposal system and equipment thereof, admit air through the intake pipe, the negative pressure will mix the air current of microorganism powder and inhale elasticity arc shell through the fixed pipe, through repeated extrusion, make air current and water fully dissolve, when increasing aeration area, improve the efficiency of denitrogenation dephosphorization, improve quality of water, change at the inside atmospheric pressure of liquid through utilizing the object, make to strain the hydrophone before decanting, just can effectively go out the dross floating oil on sewage surface, avoid straining the diaphragm department of hydrophone jam and membrane bioreactor and take place the filth siltation, effectively collect dross floating oil simultaneously, improve equipment's practicality.

2. This environment-friendly effluent disposal system and equipment thereof is convenient for control through the inside check valve of casing for water and inside flocculation and dross are inhaled, are spilled through the sieve mesh of casing one by the inspiratory water, are convenient for absorb the dross, submerge through the biomembrane shell in, make the water filter through getting into the biomembrane shell, carry out multiple filtration, detach nitrogen phosphorus, improve membrane bioreactor's operating efficiency and work effect.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the kinematic structure of the present invention;

FIG. 3 is a schematic structural diagram of the energy saving mechanism of the present invention;

FIG. 4 is a schematic structural view of a control mechanism of the present invention;

FIG. 5 is a schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 6 is a schematic diagram of the overall system structure of the present invention.

In the figure: 1. a housing; 2. an energy-saving mechanism; 21. a turbine; 22. a first connecting shaft; 23. a connecting pipe; 24. a third shell; 25. an elastic arc shell; 26. a fixed tube; 27. rotating the block; 3. a control mechanism; 31. a float; 32. a second piston; 33. a screw; 34. an elastic shell; 35. a support; 36. a biofilm shell; 37. a water outlet pipe; 4. a rapid filtration mechanism; 41. a first shell; 42. filtering the plate; 43. a first air bag; 44. a first piston; 45. recovering the shell; 5. a separator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-6, an environment-friendly wastewater treatment device includes a rapid filtering mechanism 4, the rapid filtering mechanism 4 includes a first casing 41, a filter plate 42 is fixedly connected to the inside of the first casing 41, a first air bag 43 is fixedly connected to the inside of the first casing 41, a first piston 44 is fixedly connected to the outside of the first air bag 43, and a recovery casing 45 is fixedly connected to the bottom end of the first casing 41, so that the control is facilitated through a check valve inside the first casing 41, the water body and the internal flocculation and scum are sucked, the sucked water body leaks through a sieve mesh of the first casing 41, scum is conveniently absorbed, and the water body is submerged into the water through a biomembrane casing 36, and the water body is filtered through the biomembrane casing 36 to remove nitrogen and phosphorus.

Example two:

referring to fig. 1-6, an environment-friendly wastewater treatment device comprises a rapid filtering mechanism 4, the rapid filtering mechanism 4 comprises a first casing 41, a filter plate 42 is fixedly connected inside the first casing 41, a first air bag 43 is fixedly connected inside the first casing 41, a first piston 44 is fixedly connected outside the first air bag 43, and a recycling casing 45 is fixedly connected to the bottom end of the first casing 41, so that a water body and internal flocs and scum are sucked through a one-way valve inside the first casing 41, the sucked water body leaks through a sieve pore of the first casing 41 to absorb scum, and is submerged into water through a biomembrane casing 36 to filter the water body through entering the biomembrane casing 36 to remove nitrogen and phosphorus, the first piston 44 and the first casing 41 are fixedly connected with a spring, the inside of the first casing 41 is fixedly connected with the one-way valve, the direction of the one-way valve is the same, sieve pores are formed inside the recycling casing 45 and the first casing 41, therefore, the filtering is convenient through the sieve pores, the filtering is convenient, the energy-saving mechanism 2 is further included, the energy-saving mechanism 2 includes a turbine 21, the inside of the turbine 21 is rotatably connected with a first connecting shaft 22, the bottom end of the first connecting shaft 22 is provided with a connecting pipe 23, the outer side of the connecting pipe 23 is rotatably connected with a third shell 24, the inside of the third shell 24 is fixedly connected with an elastic arc shell 25, the inside of the elastic arc shell 25 is fixedly connected with a fixed pipe 26, the outer side of the connecting pipe 23 is clamped with a rotating block 27, the first connecting shaft 22 and the connecting pipe 23 are both rotatably connected with gears, the two gears are mutually meshed, the connecting pipe 23 is movably connected with an air inlet pipe, the fixed pipe 26 is movably connected with the connecting pipe 23, the elastic arc shell 25 is slidably connected with the rotating block 27, the inside of the third shell 24 is fixedly connected with a one-way valve, therefore, air is introduced through the air inlet pipe, airflow mixed with microorganism powder is sucked into the elastic arc shell 25 through the fixed pipe 26 by negative pressure, through repeated extrusion, the airflow and the water body are fully dissolved, and the nitrogen and phosphorus removal efficiency is improved while the aeration area is increased.

Example three:

referring to fig. 1-6, an environment-friendly wastewater treatment device comprises a rapid filtering mechanism 4, the rapid filtering mechanism 4 comprises a first casing 41, a filter plate 42 is fixedly connected inside the first casing 41, a first air bag 43 is fixedly connected inside the first casing 41, a first piston 44 is fixedly connected outside the first air bag 43, and a recycling casing 45 is fixedly connected to the bottom end of the first casing 41, so that a water body and internal flocs and scum are sucked through a one-way valve inside the first casing 41, the sucked water body leaks through a sieve pore of the first casing 41 to absorb scum, and is submerged into water through a biomembrane casing 36 to filter the water body through entering the biomembrane casing 36 to remove nitrogen and phosphorus, the first piston 44 and the first casing 41 are fixedly connected with a spring, the inside of the first casing 41 is fixedly connected with the one-way valve, the direction of the one-way valve is the same, sieve pores are formed inside the recycling casing 45 and the first casing 41, therefore, the filtering is convenient through the sieve pores, the filtering is convenient, the energy-saving mechanism 2 is further included, the energy-saving mechanism 2 includes a turbine 21, the inside of the turbine 21 is rotatably connected with a first connecting shaft 22, the bottom end of the first connecting shaft 22 is provided with a connecting pipe 23, the outer side of the connecting pipe 23 is rotatably connected with a third shell 24, the inside of the third shell 24 is fixedly connected with an elastic arc shell 25, the inside of the elastic arc shell 25 is fixedly connected with a fixed pipe 26, the outer side of the connecting pipe 23 is clamped with a rotating block 27, the first connecting shaft 22 and the connecting pipe 23 are both rotatably connected with gears, the two gears are mutually meshed, the connecting pipe 23 is movably connected with an air inlet pipe, the fixed pipe 26 is movably connected with the connecting pipe 23, the elastic arc shell 25 is slidably connected with the rotating block 27, the inside of the third shell 24 is fixedly connected with a one-way valve, therefore, air is introduced through the air inlet pipe, airflow mixed with microorganism powder is sucked into the elastic arc shell 25 through the fixed pipe 26 by negative pressure, through repeated extrusion, the air flow and the water body are fully dissolved, the aeration area is increased, and meanwhile, the nitrogen and phosphorus removal efficiency is improved, the nitrogen and phosphorus removal device further comprises a control mechanism 3, the control mechanism 3 comprises a floater 31, the bottom end of the floater 31 is in transmission connection with a second piston 32, the inner thread of the second piston 32 is connected with a screw 33, the outer side of the second piston 32 is in sliding connection with an elastic shell 34, one end, away from the second piston 32, of the screw 33 is movably connected with a support 35, one end, away from the screw 33, of the support 35 is rotatably connected with a biological membrane shell 36, the bottom end of the biological membrane shell 36 is fixedly connected with a water outlet pipe 37, the right end of the support 35 is fixedly connected with a light plastic water storage shell, a through hole and a biological filtration membrane are arranged inside the biological membrane shell 36, the water outlet pipe 37 is fixedly connected with the light plastic water storage shell, the biological membrane shell 36 is fixedly connected with a first shell 41, the shell 1 is further comprises a shell 1, the energy-saving mechanism 2 is movably connected inside the shell 1, the inside swing joint of shell 1 has control mechanism 3, and the inside swing joint of shell 1 has quick filter mechanism 4, and the inside fixedly connected with baffle 5 of shell 1.

Example four:

referring to fig. 6, an environment-friendly wastewater treatment system includes: a wastewater tank, a grid, an equipment treatment subsystem, an aerobic reaction tank, a PH regulation tank, a disinfection tank, sludge discharge and dehydration;

an aerobic reaction tank for aerobic aeration reaction to treat the wastewater;

Wherein, the grid is connected with the dehydration, the decantation water is connected with the sludge discharge, and the decantation water is connected with the aerobic reaction tank.

The working principle is as follows: when the device is used, water flow enters from the left side of the shell 1, the turbine 21 rotates through the power potential energy of the water flow, the turbine 21 drives the connecting shaft I22 to rotate, the connecting pipe 23 rotates through the mutual meshing of the two gears, the connecting pipe 23 drives the rotating block 27 to rotate through clamping, the rotating block 27 continuously extrudes the elastic arc shell 25, when the elastic arc shell 25 is extruded, the pressure of internal air flow is increased, the connecting plate of the one-way valve is pushed open, the internal air flow escapes upwards in a water body to generate negative pressure, the internal pressure of the one-way valve is smaller than that of the outside, the one-way valve is closed, air is introduced through the air inlet pipe, the negative pressure enables the air flow mixed with microbial powder to be sucked into the elastic arc shell 25 through the fixing pipe 26, the air flow is fully dissolved with the water body through repeated extrusion, and the nitrogen and phosphorus removal efficiency is improved;

through the increase of water, the floater 31 rises, the floater 31 pulls the second piston 32 to move to the left, the second piston 32 drives the screw 33 to move to the right through threaded connection, the screw 33 pushes the bracket 35 to rotate counterclockwise, the bracket 35 drives the biofilm shell 36 and the first shell 41 to move downwards, the first shell 41 is submerged in water, part of water enters the inside of the first shell 41 through the filter plate 42, and the depth of the first shell 41 to the lower side is deeper, which can be known through the formula:

p=p₀+pgh；

wherein:

p₀: initial air pressure;

p: the density of the liquid;

g: a proportionality coefficient;

h: the depth of the object in the water;

therefore, the following steps are carried out: the pressure intensity outside the first air bag 43 is larger, the first air bag 43 is extruded by the pressure intensity, air inside the first air bag 43 is compressed, the first piston 44 is pulled towards the first air bag 43, the pressure intensity of the area in the middle of the two adjacent first pistons 44 is relatively reduced, the pressure intensity on the upper side of the one-way valve on the upper side of the first shell 41 is larger than the pressure intensity on the lower side of the one-way valve on the lower side of the first shell 41, so that water and internal flocculation and scum are sucked, the sucked water leaks out through the sieve holes of the first shell 41 and is immersed into water through the biological membrane shell 36, the water enters the biological membrane shell 36 for filtration, nitrogen and phosphorus are removed, the water enters the light plastic water storage shell through the water outlet pipe 37, the bracket 35 is rotated clockwise through the lever principle, the biological membrane shell 36 is convenient for decanting water, the height is controlled, the first shell 41 moves upwards, and the opposite is realized, the area pressure intensity in the middle of the two adjacent first pistons 44 is relatively increased, the pressure of the upper side of the check valve at the lower side of the first housing 41 is higher than that at the lower side, and thus is opened, so that the filtered flocs and scum are pushed into the recovery housing 45 at the lower side, thereby preventing clogging.

In conclusion, the environment-friendly wastewater treatment system and the equipment thereof intake air through the air inlet pipe, negative pressure sucks the airflow mixed with the microbial powder into the elastic arc-shaped shell 25 through the fixed pipe 26, the airflow and the water body are fully dissolved through repeated extrusion, the aeration area is increased, the nitrogen and phosphorus removal efficiency is improved, the water quality is improved, the floating dross and floating oil on the surface of sewage can be effectively removed before the water decanter decants through utilizing the air pressure change of objects in the liquid, the blockage of the water decanter and the dirt deposition at the membrane of the membrane bioreactor are avoided, meanwhile, the floating dross and floating oil are effectively collected, and the practicability of the equipment is improved.

This environment-friendly effluent disposal system and equipment thereof, the check valve through casing 41 inside is convenient for control for water and inside flocculation and dross are inhaled, are leaked through casing 41's sieve mesh by the inspiratory water, are convenient for absorb the dross, submerge through biomembrane shell 36, make the water filter through getting into biomembrane shell 36, carry out a lot of filtration, detach nitrogen phosphorus, improve membrane bioreactor's operating efficiency and working effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an environment-friendly waste water treatment equipment, includes quick filtering mechanism (4), its characterized in that: the rapid filtering mechanism (4) comprises a first shell (41), a filter plate (42) is fixedly connected to the first shell (41), a first air bag (43) is fixedly connected to the first shell (41), a first piston (44) is fixedly connected to the outer side of the first air bag (43), and a first recovery shell (45) is fixedly connected to the bottom end of the first shell (41).

2. The environment-friendly wastewater treatment equipment as set forth in claim 1, wherein: the first piston (44) and the first shell (41) are fixedly connected with the spring, the inner portion of the first shell (41) is fixedly connected with the one-way valve, the direction of the one-way valve is the same, and sieve holes are formed in the recycling shell (45) and the inner portion of the first shell (41).

3. The environment-friendly wastewater treatment equipment as set forth in claim 1, wherein: still including energy-conserving mechanism (2), energy-conserving mechanism (2) are including turbine (21), the inside of turbine (21) is rotated and is connected with connecting axle one (22), the bottom of connecting axle one (22) is provided with connecting pipe (23), the outside of connecting pipe (23) is rotated and is connected with casing three (24), the inside fixedly connected with elasticity arc shell (25) of casing three (24), the inside fixedly connected with fixed pipe (26) of elasticity arc shell (25), the outside joint of connecting pipe (23) has turning block (27).

4. The environment-friendly wastewater treatment equipment as set forth in claim 3, wherein: connecting axle one (22) and connecting pipe (23) all are connected with gear revolve, two gear intermeshing, connecting pipe (23) and intake pipe swing joint, fixed pipe (26) and connecting pipe (23) swing joint, elasticity arc shell (25) and turning block (27) sliding connection, the inside and the check valve fixed connection of casing three (24).

5. The environment-friendly wastewater treatment equipment as set forth in claim 1, wherein: still including control mechanism (3), control mechanism (3) are including float (31), the bottom transmission of float (31) is connected with piston two (32), the internal thread of piston two (32) is connected with screw rod (33), the outside sliding connection of piston two (32) has elastic shell (34), the one end swing joint that piston two (32) were kept away from in screw rod (33) has support (35), the one end rotation that screw rod (33) were kept away from in support (35) is connected with biomembrane shell (36), the bottom fixedly connected with outlet pipe (37) of biomembrane shell (36).

6. The environment-friendly wastewater treatment equipment as set forth in claim 5, wherein: the right-hand member of support (35) moulds water storage shell fixed connection with light, the inside of biomembrane shell (36) is provided with through-hole and biological filtration membrane, water storage shell fixed connection is moulded with light in outlet pipe (37), biomembrane shell (36) and casing (41) fixed connection.

7. The environment-friendly wastewater treatment equipment as set forth in claim 1, wherein: still including shell (1), the inside swing joint of shell (1) has energy-conserving mechanism (2), the inside swing joint of shell (1) has control mechanism (3), the inside swing joint of shell (1) has quick filtering mechanism (4), the inside fixedly connected with baffle (5) of shell (1).

8. An environmentally friendly wastewater treatment system according to claim 1, comprising: a wastewater tank, a grid, an equipment treatment subsystem, an aerobic reaction tank, a PH regulation tank, a disinfection tank, sludge discharge and dehydration;

an aerobic reaction tank for aerobic aeration reaction to treat the wastewater;

9. The environment-friendly wastewater treatment system according to claim 8, wherein: the equipment treatment subsystem comprises anaerobic pre-reaction, aeration, filtration, anaerobic biological membrane filtration and water decanting;

10. The environment-friendly wastewater treatment system according to claim 9, wherein: the grating is connected with the dehydration tank, the decanting water is connected with the sludge discharge tank, and the decanting water is connected with the aerobic reaction tank.