CN110790458A

CN110790458A - Economic, environment-friendly and efficient septic tank treatment station and use method

Info

Publication number: CN110790458A
Application number: CN201911170450.4A
Authority: CN
Inventors: 张广富
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-02-14

Abstract

The invention discloses an economic, environment-friendly and efficient septic tank treatment station and a use method thereof. The economic, environment-friendly and efficient septic tank treatment station adopts the treatment process of 'septic tank + mechanical grating well + regulating tank + hydrolytic acidification + biological contact oxidation + MBR membrane bioreactor + disinfection', and has the beneficial effects that: the occupied area is small; the nitrification and denitrification process is improved, short flow is prevented, the full denitrification and dephosphorization functions are realized, the effluent quality is good, and the national first-level standard can be achieved; automatic control is adopted, so that the failure rate is low, and manual management is not needed; the service life is long, and the cost is low; is suitable for various water quantities and scales; the process technology is mature and reliable, economical and feasible, and the engineering application range is wider.

Description

Economic, environment-friendly and efficient septic tank treatment station and use method

Technical Field

The invention relates to the technical field of sewage treatment, in particular to an economical, environment-friendly and efficient septic tank treatment station and a using method thereof.

Background

With the increasing shortage of water resources, the purification and reuse of sewage becomes an important development direction indispensable to the development of economic society, and various sewage treatment devices are continuously applied to the field of wastewater treatment. Rural septic tank sewage is because a great variety, composition are complicated, and the processing degree of difficulty is great, has the huge area of occupation of land, operation cost height, the processing time is long or have problems such as treatment effect is not good, the quality of effluent water is poor to rural septic tank current sewage treatment equipment.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the technical defects and provides an economic, environment-friendly and efficient septic tank treatment station and a using method thereof.

In order to achieve the purpose of the invention, the invention adopts the technical scheme that: the utility model provides an economic environmental protection high-efficient septic tank treatment station, includes septic tank, grid well, equalizing basin, A level biological pond, O level biological pond, MBR membrane cisterna, the disinfection pond that connects gradually, O level biological pond, MBR membrane cisterna are equipped with the fan, the MBR membrane cisterna lets in the sludge impoundment to MBR membrane cisterna communicates A level biological pond, be equipped with chlorine dioxide generator in the disinfection pond.

The use method of the economic, environment-friendly and efficient septic tank treatment station adopts a treatment process of septic tank, mechanical grating well, regulating tank, hydrolytic acidification, biological contact oxidation, MBR membrane bioreactor and disinfection, and specifically comprises the following steps:

(1) firstly, after domestic sewage is collected into a septic tank in a centralized manner and fermented and decomposed, excrement is transported to a treatment plant and is disinfected at high temperature to be made into organic fertilizer, and the organic fertilizer is effectively utilized again; after the sewage is treated by the grid well from the septic tank, the coarse grains, insoluble COD, SS and the like in the water are greatly reduced, and grid slag is cleaned periodically by manpower and transported safely;

(2) the sewage enters an adjusting tank after being treated by a grid, and then enters an anaerobic tank of equipment for degrading organic matters in the sewage by using anaerobic microorganisms so as to oxidize macromolecular composite chain organic matters into micromolecular single-chain organic matters;

(3) phosphorus is released from the sewage and the phosphorus-containing sludge reflowing from the MBR membrane tank in an anaerobic state, and a large amount of phosphorus can be absorbed in the aerobic tank, so that the phosphorus is removed by discharging the sludge, part of ammonia nitrogen in the sewage is converted into NH3-N in the aerobic tank, and the sewage passes through the MBR membrane tank after passing through the aerobic tank;

(4) after the sewage is further biochemically filtered by the MBR membrane tank, the polluted organic matters in the sewage are basically degraded by microorganisms, and in order to ensure the sludge concentration of the biochemical tank, the sludge in the MBR membrane tank flows back to the front tank;

(5) and (4) disinfecting the water treated by the MBR membrane tank, and then discharging the water up to the standard.

The invention has the beneficial effects that: the occupied area is small and is only about 1/5 of a wetland system; the nitrification and denitrification process is improved, short flow is prevented, the full denitrification and dephosphorization functions are realized, the effluent quality is good, and the national first-level standard can be achieved; automatic control is adopted, so that the failure rate is low, and manual management is not needed; the service life is long, and the operation cost is low; is suitable for various water quantities and scales; the process technology is mature and reliable, economical and feasible, and the engineering application range is wider.

Drawings

FIG. 1 is a process flow chart of the treatment process of the economical, environment-friendly and efficient septic tank treatment station.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood 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.

Combine figure 1, an economic environmental protection high efficiency septic tank processing station, including septic tank, grid well, equalizing basin, A level biological pond, O level biological pond, MBR membrane cisterna, the disinfection pond that connects gradually, O level biological pond, MBR membrane cisterna are equipped with the fan, the MBR membrane cisterna lets in the sludge impoundment to MBR membrane cisterna intercommunication A level biological pond, be equipped with chlorine dioxide generator in the disinfection pond.

The sewage treatment project adopts a treatment process of septic tank, mechanical grating well, regulating tank, hydrolytic acidification, biological contact oxidation, MBR membrane bioreactor and disinfection. Firstly, after domestic sewage is collected into a septic tank in a centralized manner and fermented and decomposed, excrement is transported to a treatment plant and is disinfected at high temperature to be made into organic fertilizer, and the organic fertilizer is effectively utilized again; after the sewage is treated by the grid well from the septic tank, the coarse grains, insoluble COD, SS and the like in the water are greatly reduced, and grid slag is cleaned periodically by manpower and transported safely. The sewage enters the regulating tank after being treated by the grating for regulating and homogenizing the water quantity and the water quality, the balance and the stability of the water quantity and the water quality of a subsequent biochemical treatment system are ensured, organic matters in the sewage play a certain degradation effect, the shock resistance and the treatment effect of the whole system are improved, and then the sewage enters the anaerobic tank of the equipment, and the organic matters in the sewage are degraded by anaerobic microorganisms, so that the organic matters in the macromolecular composite chain are oxidized into small-molecular single-chain organic matters. The sewage and the phosphorus-containing sludge reflowing from the MBR membrane tank release phosphorus in an anaerobic state, and a large amount of phosphorus can be absorbed in the aerobic tank, so that the phosphorus can be removed by discharging the sludge. Part of ammonia nitrogen in the sewage is converted into NH3-N in the aerobic tank. After passing through the aerobic tank and the MBR membrane tank, the MBR membrane bioreactor can keep the concentration of high-activity sludge and improve the biological treatment organic load, thereby reducing the occupied area of sewage treatment facilities and reducing the amount of excess sludge by keeping low sludge load. The membrane bioreactor can retain microorganisms with longer generation period due to effective interception effect, can realize deep purification of sewage, simultaneously nitrifying bacteria can be fully propagated in the system, the nitrification effect is obvious, and the deep phosphorus and nitrogen removal efficiency is higher. After the sewage is further biochemically filtered by the MBR membrane tank, the polluted organic matters in the sewage are basically degraded by microorganisms, and in order to ensure the sludge concentration of the biochemical tank, the sludge in the MBR membrane tank is reduced and flows back to the front tank.

MBR membrane treatment method is the core of the membrane bioreactor combined process. The membrane technology is applied in the wastewater treatment, can effectively purify the wastewater and recover some useful substances, and has the characteristics of energy conservation, no phase change, simple equipment, convenient operation and the like. The water treated by the MBR membrane tank is timely qualified, and in order to ensure the stability after treatment and improve the quality of the effluent, the MBR membrane effluent is subjected to chlorine dioxide disinfection treatment and then is discharged after reaching the standard.

The present invention and the embodiments thereof have been described above, but the description is not limited to the embodiments, but only one of the embodiments of the present invention, and the actual embodiments are not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an economic environmental protection high-efficient septic tank treatment station which characterized in that: septic tank, grid well, equalizing basin, A level biological pond, O level biological pond, MBR membrane cisterna, the disinfection pond of connecting gradually are included, O level biological pond, MBR membrane cisterna are equipped with the fan, the MBR membrane cisterna lets in the sludge impoundment to MBR membrane cisterna intercommunication A level biological pond, be equipped with chlorine dioxide generator in the disinfection pond.

2. An application method of an economic, environment-friendly and efficient septic tank treatment station is characterized by comprising the following steps: the treatment process of septic tank, mechanical grating well, regulating tank, hydrolytic acidification, biological contact oxidation, MBR membrane bioreactor and disinfection comprises the following steps: