NL2028958B1 - Integrated rural domestic sewage treatment apparatus in single-household/joint-household structure - Google Patents

Abstract

The present invention relates to the field of sewage treatment technologies, and provides an integrated rural domestic sewage treatment apparatus. The apparatus includes a single-household channel and a joint-household channel connected in 5 parallel. The single-household channel includes an adjustment chamber (101), a multi-level media biological contact oxidation chamber (102), a polyurethane sponge filler oxidation chamber (103), a deep filtration and gas deodorization chamber (106) and a disinfection chamber (107) which are connected in sequence, and the joint-household channel includes the adjustment chamber (101), an MBR 10 membrane reaction chamber (104), a sludge precipitation chamber (105), the deep filtration and gas deodorization chamber (106) and the disinfection chamber (107) which are connected in sequence, wherein the adjustment chamber (101), the deep filtration and gas deodorization chamber (106) and the disinfection chamber (107) are shared by the single-household channel and the joint-household channel. The 15 apparatus according to the present invention has small floor space, simple operation, good treatment effect, and has no influence on a surrounding environment. (FIG. 1) 1

Description

DESCRIPTION INTEGRATED RURAL DOMESTIC SEWAGE TREATMENT APPARATUS IN SINGLE-HOUSEHOLD/JOINT-HOUSEHOLD STRUCTURE

TECHNICAL FIELD The present disclosure relates to the field of sewage treatment technologies, and in particular, to an integrated rural domestic sewage treatment apparatus in a single- household/joint-household structure.

BACKGROUND ART In recent years, China has continuously paid attention to an improvement of rural human settlements and revitalization of rural ecology, wherein treatment of rural domestic sewage is a key link. With an improvement of living standards, a total amount of sewage generated in Chinese rural areas each year is increasing. A treatment rate of rural sewage in China is less than 10%, and a large amount of rural sewage is directly discharged without any treatment, which not only causes extremely low reuse rate, but also poses a great threat to rural water ecosystems and villagers’ drinking water safety. At present, rural domestic sewage treatment includes distributed treatment modes such as artificial wetlands, soil percolation, stabilization ponds and other ecological processes, and centralized treatment modes such as a mode of collecting by an underground pipe network and processing by a sewage treatment plant. The distributed treatment modes conform to rural geographical conditions, but have defects of large footprints, operation obstacles in winter and unstable treatment effects, while the centralized treatment modes have better treatment effects, but have a high hydraulic load, and a large number of rural areas do not have sufficient geographical and economic conditions for laying centralized underground pipe networks. For the above problems, an integrated sewage treatment apparatus with small footprints, good treatment effects, and easy management has become a common apparatus for treating rural domestic sewage. At present, there are many integrated treatment processes such as an 1

A/O process, an SBR process, a biological contact oxidation process and an MBR process. An integrated apparatus of the A/O process lacks a sludge return system, which makes it difficult to form bacterial colonies in the apparatus and may reduce treatment efficiency of the apparatus. An integrated apparatus of the SBR process has high requirements for its core components, a water filter, which increases its cost. An integrated apparatus of the biological contact oxidation process is prone to problems such as sludge expansion. And an integrated apparatus of the MBR process has better sewage treatment efficiency, but may require a higher treatment cost in sewage treatment of a single household with a small amount of sewage due to a high membrane cost.

CONTENT OF THE DISCLOSURE According to problems in the background art, the present invention provides an integrated rural domestic sewage treatment apparatus in single-household/joint-household structure, which includes a single-household channel and a joint-household channel connected in parallel. The single-household channel includes an adjustment chamber, a multi- level media biological contact oxidation chamber, a polyurethane sponge filler oxidation chamber, a deep filtration and gas deodorization chamber and a disinfection chamber which are connected in sequence, and the joint-household channel includes the adjustment chamber, an MBR membrane reaction chamber, a sludge precipitation chamber, the deep filtration and gas deodorization chamber and the disinfection chamber which are connected in sequence, wherein the adjustment chamber, the deep filtration and gas deodorization chamber and the disinfection chamber are shared by the single-household channel and the joint-household channel.

Optionally, respective chambers of either of the single-household channel and the joint- household channel are communicated in an overflow manner.

Optionally, the adjustment chamber is provided with a filter device and a fine grille, the filter device separates the adjustment chamber into two spaces, the fine grille is arranged on an overflow port between the adjustment chamber and the multi-level media biological 2 contact oxidation chamber, and the filter device has a lower portion which is an impermeable barrier plate and an upper portion which is a coarse grille.

Optionally, the multi-level media biological contact oxidation chamber is separated into an aeration pool, a coarse sand pool, a ceramite pool and a carbon source pool in sequence according to a flow direction of the sewage, and two adjacent pools are connected in an overflow manner.

Optionally, the aeration pool is provided with an aeration device therein, the coarse sand pool is filled with coarse sands, the ceramite pool is filled with ceramites, and the carbon source pool is filled with high-carbon substances.

Optionally, the aeration pool has a length of 10cm to 20cm, a width of 30cm to 50cm, and a height of 100cm to 130cm; the coarse sand pool has a length of 15cm to 30cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and is filled with coarse sands having a fineness modulus of 3.1 to 3.7 and an average particle diameter of 0.35 to 0.5mm in a filling ratio of 2/3 to 4/5; the ceramite pool has a length of 15cm to 30cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and is filled with ceramites having a particle diameter of 5mm to 20mm in a filling ratio of 2/3 to 4/5; and the carbon source pool has a length of 10cm to 20cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and is filled with activated carbons, straws or peat in a filling ratio of 1/2 to 2/3. Optionally, a vent pipe is installed above the deep filtration and gas deodorization chamber, and a fine grille is installed inside the deep filtration and gas deodorization chamber; the fine grille is arranged on an overflow port between the deep filtration and gas deodorization chamber and the disinfection chamber; and a lower layer of the deep filtration and gas deodorization chamber is a terminal sewage filter, and a upper layer of the deep filtration and gas deodorization chamber is a gas deodorization chamber filled with an odor filter element.

Optionally, the MBR membrane reaction chamber is provided with at least one layer of biofilm therein.

3

Optionally, the biofilm is removable, has a pore size of 0.2um to 0.5um, and is made of PE, PS or a ceramic membrane. Optionally, the adjustment chamber has a length of 15cm to 35cm, a width of 70cm to 100cm, and a height of 100cm to 130cm; the multi-level media biological contact oxidation chamber has a length of 30cm to 60cm, a width of 30cm to 50cm, and a height of 100cm to 130cm; the polyurethane sponge filler oxidation chamber has a length of 40cm to 60cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and is filled with polyurethane sponges in a filling ratio of 2/3 to 5/6, a selected bacteria agent being put into the sponge filler; the deep filtration and gas deodorization chamber has a length of 20cm to 40cm, a width of 70cm to 100cm, and a height of 100cm to 130cm; and the disinfection chamber has a length of 20cm to 40cm, a width of 30cm to 50cm, and a height of 100cm to 130cm. Beneficial effects of the present invention include: The apparatus according to the present invention has two independent channels for a single-household and a joint-household, and different channels are selected for different sewage treatment volumes, which saves energy and reduces emissions, decreases operating costs, and conforms to rural lifestyles. The apparatus according to the present invention has advantages of small footprints, simple operation, good treatment effects and no influence on a surrounding environment.

BRIEF DESCRIPTION OF THE DRAWINGS In order to make it easier to understand the present invention, the present invention is described in detail by referring to specific embodiments shown in accompany drawings. These accompany drawings only illustrate typical embodiments of the present invention, and shall not be considered as limiting the scope of protection of the present invention. FIG. 1 is a perspective diagram of a treatment apparatus of the present invention. FIG. 2 is a transverse cross-sectional view of a treatment apparatus of the present invention. Reference number list: 4

Water inlet 1, Adjustment chamber 101, Multi-level media biological contact oxidation chamber 102, Polyurethane sponge filler oxidation chamber 103, MBR membrane reaction chamber 104, Sludge precipitation chamber 105, Deep filtration and gas deodorization chamber 106, Disinfection chamber 107, First space 2, Filter device 3, Second space 4, Fine grille 5, First overflow port 6, Aeration pool 7, Eighth overflow port 8, Second overflow port 9, Coarse sand pool 10, Third overflow port 11, Ceramite pool 12, Biofilm 13, Fourth overflow port 14, Carbon source pool 15, Fifth overflow port 16, Biofilm 17, Ninth overflow port 18, Polyurethane sponge filler 19, Sixth overflow port 20, Fine grille 21, Tenth overflow port 22, Vent pipe 23, Seventh overflow port 24, Water outlet 25.

PREFERRED EMBODIMENTS The following describes embodiments of the present invention with reference to accompany drawings, in which same components are denoted by same reference numbers. In cases of no conflict, following embodiments and technical features in the embodiments may be combined with each other.

A small-scale integrated rural domestic sewage treatment apparatus in a single- household/joint-household structure according to the present invention includes two process flows and two sewage treatment channels to deal with problems of different number of farmer households that produce domestic sewage. The apparatus can realize purification of rural domestic sewage, and constitute a rural domestic sewage purification apparatus.

The following describes the present invention in detail with reference to accompany drawings and specific embodiments.

The apparatus of the present invention includes two independent domestic sewage treatment channels, which are used respectively in cases of different number of farmer households that produce domestic sewage. The two channels are described in detail respectively in two embodiments. The first embodiment As shown in FIG. 1 and FIG. 2, the apparatus of the present invention includes seven chambers according to a sequence of sewage treatment as follows: an adjustment chamber 5

101, a multi-level media biological contact oxidation chamber 102, a polyurethane sponge filler oxidation chamber 103, a deep filtration and gas deodorization chamber 106, and a disinfection chamber 107.

The adjustment chamber 101 has a water inlet 1, through which domestic sewage enters the adjustment chamber 101. A filter device 3 and a fine grille 5 are provided in the adjustment chamber 101. Optionally, a pore size of the filter device 3 may be, for example, 25*25 mm, and a pore size of the fine grille 5 may be, for example, 10*10 mm.

The filter device 3 separates the adjustment chamber 101 into a first space 2 and a second space 4. The domestic sewage enters the adjustment chamber 101 through the water inlet 1, and flows into the first space 2 firstly. A lower portion of the filter device 3 is an impermeable barrier plate for blocking filtered precipitate disposed in the bottom of the first space 2. The domestic sewage flows into the second space 4 through the filter device 3 in an overflow manner. The fine grille 5 is arranged in the second space 4 and filters the domestic sewage again. The fine grille 5 may be arranged on a first overflow port 6.

Optionally, the adjustment chamber 101 may have a length of 15cm to 35cm, a width of 70cm to 100cm, and a height of 100cm to 130cm. The filter device 3 is disposed at a middle position of the adjustment chamber 101, and a lower portion of the filter device 3 1s an impermeable barrier plate with a thickness of 1cm to 3cm and a height of 60cm to 80cm. A sludge removal port 1s provided between the water inlet 1 and a lower end of the impermeable barrier plate. An upper portion of the filter device 3 is a coarse grille. The coarse grille is mounted on the impermeable barrier plate and has a height of 30cm to 50cm.

The multi-level media biological contact oxidation chamber 102 is connected behind the adjustment chamber 101, and these two chambers are communicated through the first overflow port 6. Optionally, the multi-level media biological contact oxidation chamber 102 has a length of 30cm to 60cm, a width of 30cm to 50cm, and a height of 100cm to 130cm.

The multi-level media biological contact oxidation chamber 102 is separated into an aeration pool 7, a coarse sand pool 10, a ceramite pool 12 and a carbon source pool 15 in sequence. The aeration pool 7 and the coarse sand pool 10 are communicated with each other through a second overflow port 9. The coarse sand pool 10 and the ceramite pool 12 are 6 communicated with each other through a third overflow port 11. And the ceramite pool 12 and the carbon source pool 15 are communicated with each other through a fourth overflow port 14.

Sewage treated by the adjustment chamber 101 enters the aeration pool 7 through the first overflow port 6. An aeration device is installed in the aeration pool 7 for aeration treatment of the domestic sewage, which is beneficial to aerobic effects of aerobic microorganisms, thereby improving sewage treatment efficiency.

Optionally, the aeration pool 7 has a length of 10cm to 20cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and is provided therein with a blowing aeration device, a catheter type aeration device, or a mechanical aeration device for aeration treatment.

The coarse sand pool 10 is connected behind the aeration pool 7. Domestic sewage after aeration treatment enters the coarse sand pool 10 through the second overflow port 9. The coarse sand pool 10 is filled with coarse sands used for physical absorption, filtration and precipitation of the domestic sewage, thereby improving the sewage treatment efficiency.

Optionally, the coarse sand pool 10 has a length of 15cm to 30cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and 1s filled with coarse sands having a fineness modulus of 3.1 to 3.7 and an average particle diameter of 0.35 to 0.5mm in a filling ratio of 2/3 to 4/5.

The ceramite pool 12 is connected behind the coarse sand pool 10. Sewage treated by the coarse sand pool 10 flows into the ceramite pool 12 through the third overflow port 11 in an overflow manner. The ceramite pool 12 is filled with ceramites used for chemical precipitation and ion exchange of the domestic sewage, thereby improving the sewage treatment efficiency. Optionally, the ceramite pool 12 has a length of 15cm to 30cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and is filled with ceramites having a particle diameter of Smm to 20mm in a filling ratio of 2/3 to 4/5.

The carbon source pool 15 is connected behind the ceramite pool 12. Sewage treated by the ceramite pool 12 flows into the carbon source pool 15 through the fourth overflow port 14 in an overflow manner. The carbon source pool 15 is filled with grass peat, straws and activated carbons, etc., which may improve nitrification and denitrification capabilities of microorganisms by increasing a C/N ratio in the apparatus, thereby improving removal 7 efficiency of nitrogen in the sewage. Optionally, the carbon source pool 15 is filled with high- carbon substances such as activated carbons, straws or grass peat. For example, the carbon source pool 15 may has a length of 10cm to 20cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and may be filled with high-carbon substances such as activated carbons, straws or grass peat in a filling ratio of 1/2 to 2/3.

The polyurethane sponge filler oxidation chamber 103 is connected behind the multi- level media biological contact oxidation chamber 102, and these two chambers are connected through a fifth overflow port 16. Sewage treated by the carbon source pool 15 of the multi- level media biological contact oxidation chamber 102 flows into the polyurethane sponge filler oxidation chamber 103 through the overflow port 16 in an overflow manner. The polyurethane sponge filler oxidation chamber 103 is filled with polyurethane sponge filler 19, and the filler has aerobic microorganisms therein. The polyurethane sponge filler provides attachment sites for aerobic bacteria, increases a contact surface area between the sewage and aerobic bacteria, thereby improving the sewage treatment efficiency.

Optionally, the polyurethane sponge filler oxidation chamber 103 has a length of 40cm to 60cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and is filled with polyurethane sponges in a filling ratio of 2/3 to 5/6, wherein a selected bacteria agent is put into the sponge filler.

The deep filtration and gas deodorization chamber 106 is connected behind the polyurethane sponge filler oxidation chamber 103, and these two chambers are communicated through a sixth overflow port 20. Treated domestic sewage flows through the sixth overflow port 20 to the deep filtration and gas deodorization chamber 106 in an overflow manner. A vent pipe is installed above the deep filtration and gas deodorization chamber 106. An outlet of the vent pipe is provided with a membrane structure composed of highly enriched aerobic bacteria, anaerobes, and facultative bacteria to absorb and remove the smell of the sewage. An upper end of the vent pipe is covered with a rain cap to prevent rainwater from affecting the sewage treatment efficiency.

Optionally, the deep filtration and gas deodorization chamber 106 is separated into upper and lower layers. The lower layer is a terminal sewage filter, and the upper layer is a gas 8 deodorization chamber filled with an odor filter element.

Optionally, the deep filtration and gas deodorization chamber 106 has a length of 20cm to 40cm, a width of 70cm to 100cm, and a height of 100cm to 130cm. A vent pipe 23 installed above the deep filtration and gas deodorization chamber 106 has a diameter of 10cm to 15cm and a length of 30cm to 50cm.

Optionally, a fine grille 21 is installed in the deep filtration and gas deodorization chamber 106 to perform secondary filtration (deep filtration) on sewage, thereby improving water quality of the apparatus.

The disinfection chamber 107 is connected behind the deep filtration and gas deodorization chamber 106. Treated sewage flows through a seventh overflow port 24 to the disinfection chamber 107 in an overflow manner. There is a disinfectant in the disinfection chamber 107, and the sewage 1s mixed with the disinfectant in the disinfection chamber 107, so that the sewage subjected to harmless treatment may meet discharge requirements. Treated sewage flows out of the apparatus through a water outlet 25 in an overflow manner.

Optionally, the sterilization chamber 107 has a length of 20cm to 40cm, a width of 30cm to 50cm, and a height of 100cm to 130cm. The sewage is mixed with the disinfectant in the disinfection chamber 107, and then the disinfection is completed.

The second embodiment The second embodiment of the small-scale integrated rural domestic sewage treatment apparatus in the single-household/joint-household structure is different from the first embodiment in that internal treatment channels selected are different according to the number of farmer households that produce domestic sewage.

As shown in FIG. 1 and FIG. 2, an apparatus of the present invention includes 7 chambers as follows: the adjustment chamber 101, the multi-level media biological contact oxidation chamber 102, the polyurethane sponge filler oxidation chamber 103, the MBR membrane reaction chamber 104, the sludge precipitation chamber 105, the deep filtration and gas deodorization chamber 106, and the disinfection chamber 107.

When the number of farmer households that produce domestic sewage is 1 household (4-5 persons), sewage flows into the adjustment chamber 101, and the multi-level media 9 biological contact oxidation chamber 102, the polyurethane sponge filler oxidation chamber 103, the deep filtration and gas deodorization chamber 106 and the disinfection chamber 107, and then is discharged by the apparatus. This process is the same as that in the first embodiment, and is not repeated here. The MBR membrane reaction chamber 104 and the sludge precipitation chamber 105, which have different operations from those in the first embodiment, are described in detail below.

When the number of farmer households that produce domestic sewage is 2 or more households (5 to 8 persons), sewage flows into the adjustment chamber 101, and treated sewage flows to the MBR membrane reaction chamber 104 through the eighth overflow port 8 in an overflow manner. Thus, the multi-level media biological contact oxidation chamber 102 and the polyurethane sponge filler oxidation chamber 103 form one channel, while the MBR membrane reaction chamber 104 and the sludge precipitation chamber 105 form another channel, and these two channels are connected in parallel. The fine grille 5 is also arranged on the eighth overflow port 8.

The MBR membrane reaction chamber 104 is connected behind the adjustment chamber 101, and the two chambers are communicated through the eighth overflow port 8. Two layers of biofilm 13 and biofilm 17 are arranged in the MBR membrane reaction chamber 104. The biofilm 13 and the biofilm 17 are detachable, have a pore size of 0.2um to 0.5um, and are made of PE, PS or ceramic membranes. One layer of curtain film or two layers of curtain film may be used according to a hydraulic load and a pollution load of domestic sewage. The biofilm can efficiently intercept microorganisms in sewage, and microorganisms on the biofilm can degrade pollutants in sewage, thereby improving the sewage treatment capacity.

Optionally, the MBR membrane reaction chamber 104 has a length of 60cm to 80cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and is provided with two layers of detachable biofilm having a pore size of 0.2um to 0.5um and being made of PE, PS or ceramic membranes.

The sludge precipitation chamber 105 is connected behind the MBR membrane reaction chamber 104, and the two chambers are communicated through a ninth overflow port 18. Sewage treated by the MBR membrane reaction chamber 104 flows to the sludge precipitation 10 chamber 105 through the ninth overflow port 18 in an overflow manner. Since the sewage treated by the MBR membrane reaction chamber 104 carries some suspended particulate matter, the suspended particulate matter is precipitated in the sludge precipitation chamber 105 so as to improve water quality of the apparatus.

Optionally, the sludge precipitation chamber 105 has a length of 20cm to 40cm, a width of 30cm to 50cm, and a height of 100cm to 130cm, and is provided with a sludge removal port at its bottom.

The deep filtration and gas deodorization chamber 106 are connected behind the sludge precipitation chamber 105, and the two chambers are communicated through a tenth overflow port 22. Sewage treated by the sludge precipitation chamber 105 flows through the tenth overflow port 22 to the deep filtration and gas deodorization chamber 106 in an overflow manner.

Beneficial effects of the present invention may be confirmed from the following specific application examples: An apparatus of the present invention has been tested in homes of villagers in Ninghe District, Tianjin. Operation results of the apparatus show that total hydraulic retention time of the apparatus is short and an amount of sludge produced is small. For sewage of both single-household and joint-household, removal efficiency is high on total nitrogen, total phosphorus, ammonia nitrogen, COD, and BODs. Generally, treatment efficiency may be as follows: more than 90% for BODs and SS, more than 80% for total nitrogen, and more than 90% for phosphorus.

The above-mentioned embodiments are only preferred specific implementations of the present invention, and usual modifications and replacements made by those skilled in the art within the scope of technical solutions of the present invention shall be included in the protection scope of the present invention.

11

Claims (9)

Changed conclusions An integrated apparatus for treating rural domestic wastewater in a single-household/joint-household construction, characterized in that it comprises: a single-household channel and a joint-household channel connected in parallel, wherein the single household channel includes: a control chamber (101) for filtering precipitation, a multilevel media biological contact oxidation chamber (102), a polyurethane sponge filler oxidation chamber (103), a deep filtration and gas deodorization chamber (108) and a disinfection chamber (107) connected in sequence, and wherein the common household channel includes: the control chamber (101), an MBR membrane reaction chamber (104), a sludge precipitation chamber (105), the deep- filtration and gas deodorization chamber (106) and the disinfection chamber (107) connected in sequence, the control chamber (101), the deep filtration and gas deodorization chamber (106) and the disinfection chamber (107) becoming common shared by the single household channel and the joint household channel, the multi-level media biological contact oxidation chamber (102) is separated into an aeration basin (7) for aeration of the domestic waste water, a coarse sand basin (10) for physical absorption, a ceramite basin (12) for chemical precipitation and ion exchange of the domestic waste water, and a carbon source basin (15) for nitrogen removal in the sewer, the basins being in sequence according to a flow direction of the wastewater, and two adjacent basins are connected in overflow manner, a vent pipe is installed above the deep filtration and gas deodorization chamber (108), an outlet of the vent pipe is provided with a membrane structure composed of highly enriched aerobic bacteria, anaerobes and facultative bacteria to absorb and remove odor from the waste water. An integrated rural domestic sewage treatment apparatus in a single-household/joint-household structure according to claim 1, wherein respective chambers of either of the single-household channel and the joint-household channel are overflowed with are connected to each other. An integrated apparatus for treating rural domestic wastewater in a single-household/joint-household construction according to claim 1, wherein the control room (101) is provided with a filter device {3) and a fine grid (5), the filter device (3) separates the control chamber (101) into two spaces, with the fine grid (5) mounted on an overflow port between the control chamber (101) and the multilevel media biological contact oxidation chamber (102), and the filter device (3) has a lower portion which is an impermeable barrier plate and has an upper portion which is a coarse mesh. 40 The integrated rural domestic sewage treatment apparatus in a single-household/joint-household construction according to claim 1, wherein the aeration basin (7) has an aeration device therein, the coarse sand basin (10) being filled with coarse sands, the ceramite basin (12) is filled with ceramites, and the carbon source basin (15) is filled with high-carbon substances. An integrated apparatus for treating rural domestic sewage in a single-household/joint-household construction according to claim 4, wherein the aeration basin (7) has a length of 10cm - 20cm, a width of 30cm - 50cm, and a height of 100cm - 130cm has; the coarse sand basin (10) has a length of 15cm - 30cm, a width of 30cm - 50cm, and a height of 100cm - 130cm, and is filled with coarse sands that have a fineness modulus of 3.1 - 3.7 and have an average particle diameter of 0.35 - 0.5mm in a filling ratio of 2/3 - 4/5; the ceramite basin (12) has a length of 15cm - 30cm, a width of 30cm - 50cm, and a height of 100cm - 130cm, and is filled with ceramites having a particle diameter of 5mm - 20mm in a filling ratio of 2/3 - 4/ have 5; and the carbon source basin (15) has a length of 10cm - 20cm, a width of 30cm - 50cm, and a height of 100cm - 130cm, and is filled with activated carbons, straw or turf grass in a filling ratio of 1/2 - 2 /3. The integrated apparatus for treating rural domestic sewage in a single-household/joint-household structure according to claim 1, wherein a fine mesh is installed inside the deep filtration and gas deodorization chamber (106); the fine grid is mounted on an overflow port between the deep filtration and gas deodorization chamber (106) and the disinfection chamber (107); and a lower layer of the deep filtration and gas deodorization chamber (108) is a waste water final filter, and an upper layer of the deep filtration and gas deodorization chamber (108) is a gas deodorization chamber filled with an odor filter element. The integrated apparatus for treating rural domestic wastewater in a single-household/joint-household structure according to claim 1, wherein the MBR membrane reaction chamber (104) has at least one layer of biofilm therein. An integrated apparatus for treating rural domestic wastewater in a single-household/joint-household construction according to claim 7, wherein the biofilm is removable, has a pore size of 0.2um - 0.5um, and is made of PE, PS or a ceramic diaphragm. An integrated apparatus for treating rural domestic wastewater in a single-household/joint-household structure according to claim 1, wherein the control room (101) has a length of 15cm - 35cm, a width of 70cm - 100cm, and a height of from 100cm - 130cm; the multilevel media biological contact oxidation chamber (102) has a length of 30cm - 60cm, a width of 30cm - 50cm, and a height of 100cm - 130cm; the polyurethane sponge filler oxidation chamber (103) has a length of 40cm - 60cm, a width of 30cm - 50cm, and a height of 100cm - 130cm, and is filled with polyurethane sponges at a filling ratio of 2/3 - 5/6, wherein a selected bacterial agent is introduced into the sponge filler; the deep filtration and gas deodorization chamber (108) has a length of 20cm - 40cm, a width of 70cm - 100cm, and a height of 100cm - 130cm; and the disinfection chamber (107) has a length of 20cm - 40cm, a width of 30cm - 50cm, and a height of 100cm - 130cm.