CN213537629U

CN213537629U - High-efficient unpowered sewage treatment system

Info

Publication number: CN213537629U
Application number: CN202021785794.4U
Authority: CN
Inventors: 马小兰; 傅永春
Original assignee: Individual
Current assignee: Xuzhou Heyang Technology Consulting Co.,Ltd.
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-06-25
Anticipated expiration: 2030-08-25

Abstract

The invention discloses a high-efficiency unpowered sewage treatment system which comprises an anaerobic reaction zone, a lifting water distribution pipe, an aerobic reaction zone, an anoxic reaction zone and a disinfection zone, wherein the anaerobic reaction zone is positioned at the lower end of an integrated device, sewage to be treated enters water through a water inlet at the upper part of the anaerobic reaction zone, the wastewater automatically flows to the anoxic reaction zone through a water outlet at the bottom of the aerobic reaction zone, the wastewater automatically flows to the disinfection zone, the disinfection zone contains a slow-release disinfectant, the system does not need any other kinetic energy in the whole process by utilizing the height difference of a water inlet and a water outlet, and the whole process does not need to be attended and has high automation degree. The high-efficiency unpowered sewage treatment system provided by the invention is simple, convenient, economic and stable, and is suitable for treating low-concentration easily-biochemical wastewater, especially suitable for treating domestic sewage or municipal sewage in small towns, remote mountain areas and residential areas which cannot be covered by urban sewage treatment plants.

Description

High-efficient unpowered sewage treatment system

Technical Field

The invention belongs to the technical field of sewage treatment, and particularly relates to a high-efficiency unpowered sewage treatment system.

Background

With the rapid development of economy, the total discharge amount of sewage is increased year by year, and the pollutants of domestic sewage account for 40-50% of the total urban water pollution amount according to statistics. The concentration of the domestic sewage pollutants is low, the properties of most of the domestic sewage are not greatly different, the biodegradability is strong, the quantity of the domestic sewage in general rural areas is small, except for small towns, the general rural areas are dispersed in population, the water quantity is relatively small, and the quantity of the generated domestic sewage is also small. And along with the stricter and stricter sewage discharge regulations of various countries, the sewage discharge treatment by adopting the traditional septic tank at present can not meet the requirements of discharge standards, and the more thorough treatment method is to introduce the sewage into the urban sewage treatment plant for centralized treatment. However, for rural domestic sewage or distributed urban domestic sewage, the design range is wide, the randomness is strong, the prevention and treatment are very difficult, a pipe network collection system is not perfect, and the coverage rate of a sewage treatment plant is low, so that the domestic sewage of a plurality of small towns, remote mountainous areas and residential communities with inconvenient traffic conditions can be directly discharged without treatment, and the environmental pollution is caused. Therefore, a sewage treatment facility which is stable and reliable in operation, low in operation cost and convenient to manage and maintain is urgently needed.

Disclosure of Invention

The invention aims to provide an efficient, stable, energy-saving and convenient unpowered sewage treatment system, which realizes unpowered treatment in the whole process by utilizing the height difference between a sewage discharge port and the top of the device. The device can be placed on the ground or buried underground according to conditions, and the size of the device can be flexibly designed according to the height difference between the sewage discharge port and the sewage receiving channel. The system is not only suitable for treating the remotely dispersed domestic sewage in small towns and rural areas, but also suitable for a biological treatment system of easily degradable wastewater, and is a simple, economic and reliable biological wastewater treatment system.

In order to achieve the purpose, the high-efficiency unpowered sewage treatment system comprises an anaerobic reaction zone 6, a lifting water distribution pipe 4, an aerobic reaction zone 9, an anoxic reaction zone 12 and a disinfection zone 13, wherein a water inlet 7 is positioned at the lower part of the anaerobic reaction zone 6, the wastewater enters the anaerobic reaction zone 6 through the water inlet 7 after passing through a front-mounted filtering device 16 and is lifted to the aerobic reaction zone 9 by the lifting water distribution pipe 4, the wastewater automatically flows to the anoxic reaction zone 12 through an aerobic water outlet channel 11, the anoxic reaction zone 12 is internally provided with fillers to realize the effects of nitrogen and phosphorus removal, the wastewater in the anoxic reaction zone 12 automatically flows to the disinfection zone 13 through an anoxic overflow hole 10, and the disinfection zone 13 is internally provided with a slow-release disinfectant and is discharged through the action of gravity after the wastewater is disinfected to reach the standard.

Wherein the anaerobic reaction zone 6 is filled with a filler for providing a carrier for the growth of microorganisms, the wastewater to be treated is subjected to anaerobic fermentation to remove certain organic matters, and meanwhile, the organic matters which are difficult to degrade are decomposed into micromolecular organic matters;

the lifting water distributor 4 is positioned in the central position of the high-efficiency unpowered sewage treatment system and can simultaneously play a supporting role, the water inlet 5 of the lifting water distributor is positioned at the upper part of the anaerobic tank, the water outlet 2 of the lifting water distributor is positioned at the upper part of the aerobic reaction zone 9, the lifting water distributor 4 can simultaneously play an anaerobic tank exhaust function, and the size and the water outlet of the lifting water distributor 4 are designed according to the amount of the wastewater to be treated;

the aerobic reaction zone 9 is in a step shape, each layer is provided with a water outlet weir and is suspended with filler, the filler is installed against the water flow direction, water flow is involved in air through turbulence formed by the filler and the step structure, and an aerobic water outlet channel 11 is arranged at the bottom of the aerobic reaction zone 9, so that the wastewater automatically flows to the bottom of the anoxic reaction zone 12.

The anoxic reaction zone 12 is filled with fillers and placed in a lifting basket, the wastewater to be treated flows through a packed bed from bottom to top to complete denitrification and dephosphorization, the sludge discharge port 14 is arranged in the tank, and sludge is discharged periodically;

the disinfection area 13 is internally provided with a slow-release disinfectant which is added periodically, and the wastewater after disinfection flows through the water outlet 15 of the device and is discharged into a sewage receiving channel;

the high-efficiency unpowered sewage treatment system can design the retention time of each part according to the quality and quantity of inlet water, does not need any power in the whole process, can be designed to be open and can also be closed, and vent holes are required to be reserved at the top when the top is closed; when the open design is carried out, aquatic plants can be planted in the aerobic reaction zone, so that the ornamental value and the treatment effect of the equipment are improved.

Compared with the prior art, the invention has the following technical effects:

1. the whole process has no power requirement, the requirement on the height difference of water inlet and outlet is low, the size of the equipment and the size of each part can be flexibly adjusted according to each parameter, and the composition of each part of the equipment can be flexibly adjusted;

2. the water inlet and outlet of the lifting water distribution pipe can be designed according to the size and layout of water inlet suspended matters, so that the requirement on water quality is low and the water distribution pipe is not easy to block;

3. the aerobic reaction zone is involved in micro air through stepped water flow scouring and turbulent flow formed by water flow on the filler, so that the operation is more stable and reliable compared with the operation of the conventional equipment of the same type;

4. the adsorption filler is arranged in the anoxic reaction zone, so that the aim of removing nitrogen and phosphorus can be fulfilled at the same time, and meanwhile, the filler is placed in the lifting basket, can be cleaned as required after a period of time, and is convenient to maintain;

5. the anaerobic reaction zone and the anoxic reaction zone are provided with sludge discharge ports, sludge can be discharged periodically through gravity, and the operation is simple;

6. the decorative plate can be designed to be round or square according to the field requirement, is attractive and has certain ornamental value;

the invention will be further explained with reference to the drawings.

Drawings

FIG. 1 is a schematic view of a cross-sectional structure of an efficient unpowered sewage treatment system according to the present invention;

FIG. 2 is a schematic top view of an aerobic reaction zone of the high-efficiency unpowered sewage treatment system according to the present invention;

FIG. 3 is a schematic top view of the anaerobic reaction zone, anoxic zone and disinfection zone of the high efficiency unpowered sewage treatment system of the present invention;

description of reference numerals: 1-pores; 2-lifting a water distribution outlet; 3-aerobic filling; 4-lifting the water distribution pipe; 5-lifting the water inlet of the water distribution pipe; 6-anaerobic reaction zone; 7-a water inlet; 8-disinfectant feeding port; 9-an aerobic reaction zone; 10-anoxic overflow holes; 11-aerobic water outlet channel; 12-an anoxic reaction zone; 13-a sterile field; 14-a sludge discharge port; 15-water outlet; 16-prefilter unit.

Detailed Description

The above and further features and advantages of the present invention are explained in more detail below with reference to the accompanying drawings and examples.

As shown in fig. 1, 2 and 3, the high-efficiency unpowered sewage treatment system of the invention comprises an anaerobic reaction zone 6, a lifting water distribution pipe 4, an aerobic reaction zone 9, an anoxic reaction zone 12 and a disinfection zone 13; the anaerobic reaction zone 6, the anoxic reaction zone 12 and the disinfection zone 13 are positioned at the lower part of the device, and the aerobic reaction zone 9 is positioned at the upper part of the device; the wastewater enters an anaerobic reaction zone 6 from a water inlet 7 after being filtered by a pre-filtering device 16, the anaerobic reaction zone 6 is filled with filler, the effluent of the anaerobic reaction zone 6 enters a lifting water distribution pipe 4 from a water inlet 5 of the lifting water distribution pipe, and the lifting water distribution pipe 4 simultaneously plays a role in supporting and exhausting the anaerobic reaction zone 6; the wastewater is lifted to an aerobic reaction zone 9 by the elevation difference of a drain outlet through a lifting water distribution pipe water outlet 2; the aerobic reaction zone 9 is in a step structure and is provided with aerobic suspended fillers 3, and when the wastewater flows through the aerobic reaction zone 9 from top to bottom, the wastewater is involved in air through turbulence formed by the fillers and the step structure to carry out microbial aerobic reaction; an aerobic water outlet channel 11 is arranged at the bottom of the aerobic reaction zone 9, wastewater flows to the bottom of the anoxic reaction zone 12 from the aerobic reaction zone by gravity, granular fillers are arranged in the anoxic reaction zone, and the wastewater enters a disinfection zone 13 through an anoxic overflow hole 10 after nitrogen and phosphorus removal; the slow-release disinfectant is arranged in the disinfection area 13 and is periodically put in through the disinfectant putting port 8, and the disinfected wastewater is discharged into the sewage receiving channel through the water outlet 15; regularly arrange mud through mud discharge port 14, set up row mud pipeline valve well, the mud that discharges can be used as fertilizer.

When the device is used, firstly, the circulating water tank 1 is filled with spraying water, the

valves

11 and 13 are closed, the valve 12, the drainage pump 8 and the water suction pump 10 are opened, the circulating water in the circulating water tank 1 is sprayed into the thermal desorption spray tower 2, the tail gas is cooled through the sand filter device 6, and the spraying wastewater flows back to the circulating water tank 1 from the bottom of the thermal desorption spray tower 2; and (3) carrying out online monitoring on the water temperature in the circulating water tank 1, closing the valve 12 when the water temperature rises to about 45 ℃, opening the circulating water pump 7, the valve 11 and the valve 13, carrying out heat exchange on the circulating water through the heat exchanger 4, reducing the temperature of the circulating water, returning the circulating water to the circulating water tank 1, and recycling the circulating water for tail gas spraying and cooling. The exchanged heat is absorbed by ground heating water (cold water end) of the greenhouse, pumped into a ground heating coil of the film structure greenhouse 3 through the circulating water pump 7 and then exchanged to the pre-treated pollution map soil, and the gas-fired boiler 14 is an auxiliary heat source.

Meanwhile, a medicament pump 9 is started, hydrogen peroxide in a medicament tank 5 is injected into the stopped circulating water pool 1 through a medicament injection pipe 16, the dosage of the hydrogen peroxide is 2-3% of the wastewater, and the hydrogen peroxide is added once a week. The medicament pump 9 is closed, and the hydrogen peroxide is uniformly mixed in the flowing process of the circulating spray water, so that pollutants in the circulating water are removed, and meanwhile, organic matters in partial tail gas can be removed.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope and application of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a high-efficient unpowered sewage treatment system which characterized in that: including anaerobic reaction district (6), promotion water distributor (4), aerobic reaction district (9), oxygen deficiency reaction district (12), disinfection district (13), anaerobic reaction district (6), oxygen deficiency reaction district (12), disinfection district (13) are located the sewage treatment system lower part, and waste water gets into through water inlet (7) anaerobic reaction district (6), anaerobic reaction district (6) with aerobic reaction district (9) by promote water distributor (4) and connect, aerobic reaction district (9) through good oxygen play ditch (11) with oxygen deficiency reaction district (12) link to each other, oxygen deficiency reaction district (12) through oxygen deficiency overflow hole (10) with disinfection district (13) link to each other.

2. The high efficiency unpowered sewage treatment system according to claim 1, wherein: the anaerobic reaction zone (6) is positioned at the bottom of the sewage treatment system, the water inlet (7) is positioned at the lower part of the anaerobic reaction zone (6), a filler is arranged in the anaerobic reaction zone (6) to provide a carrier for microbial growth biofilm formation, and the anaerobic reaction zone (6) is communicated with the aerobic reaction zone (9) through the lifting water distribution pipe (4).

3. The high efficiency unpowered sewage treatment system according to claim 1, wherein: the aerobic reaction zone (9) is in a step shape, each layer is provided with a water outlet cofferdam and is suspended with filler, the filler is installed in the direction opposite to the water flow, the water flow is involved with air through turbulence formed by the filler and the step structure, an aerobic water outlet channel (11) is arranged at the bottom of the aerobic reaction zone (9), a flow guide pipe is arranged in the aerobic water outlet channel (11), so that the wastewater automatically flows to the bottom of the anoxic reaction zone (12), and an air hole (1) is formed in the top of the aerobic reaction zone (9).

4. The high efficiency unpowered sewage treatment system according to claim 1, wherein: a filler is arranged in the anoxic reaction zone (12), and wastewater enters from the bottom; an anoxic overflow hole (10) is arranged at the upper part of the anoxic reaction zone (12), wastewater automatically flows to the disinfection zone (13), and the filler is arranged in the lifting basket.

5. The high efficiency unpowered sewage treatment system according to claim 1, wherein: the slow-release disinfectant is arranged in the disinfection area (13), and a water outlet (15) is formed in the bottom of the disinfection area (13).