CN210711184U - Facility for collecting and treating grey water of village building - Google Patents

Abstract

The utility model belongs to the field of environmental protection, and relates to a village building grey water collecting and processing facility, which is connected with a rural building discharged grey water source, and comprises a water inlet pipe communicated with the grey water source and a sludge collecting tank communicated with the water inlet pipe, wherein the sludge collecting tank is communicated with a grey water collecting box; one end of the inside of the biological detention pool, which is close to the water distributor, is a water accumulation layer, one side of the water accumulation layer, which is far away from the water distributor, is also sequentially provided with a planting packing layer, a water storage packing layer and a disinfection layer, and one end of the disinfection layer, which is far away from the water distributor, is also provided with a drain pipe on the biological detention pool; the utility model discloses a cost is handled lowly, and the treatment effeciency is high, and can effectively get rid of bacterium in the buck.

Description

Facility for collecting and treating grey water of village building

Technical Field

The utility model belongs to the environmental protection field relates to a facility is collected and handles to village building buck.

Background

At present, the water pollution problem in China is serious, the total amount of water resources is reduced, the per-capita water resource occupancy is small, the water resource distribution is not matched with population and economic layout, and the water pollution problem in rural areas is serious. Drainage water discharged by rural buildings can be divided into 2 types of black water and grey water according to different water qualities. The black water refers to toilet flushing drainage with high pollutant content, namely fecal sewage; the grey water refers to the waste water of bathing, kitchen, laundry and the like with light pollution. The grey water accounts for a large proportion in rural domestic sewage, has light pollution degree and has high recycling value. In the currently used grey water treatment technology, the disposal cost of the coagulating sedimentation technology is high; the treatment efficiency of the activated carbon is low; the physicochemical treatment method cannot completely remove the bacteria in the grey water, and the "anaerobic bacteria" in the water begin to multiply, resulting in the water becoming odorous.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a collecting and treating facility for grey water of village buildings, which has low disposal cost and high treatment efficiency and can effectively remove bacteria in the grey water.

In order to achieve the above purpose, the utility model provides a following technical scheme: a village building grey water collecting and processing facility is connected with a grey water source discharged by rural buildings and comprises a water inlet pipe communicated with the grey water source and a sludge collecting tank communicated with the water inlet pipe, wherein the sludge collecting tank is communicated with a grey water collecting tank;

the biological detention pond is internally provided with a water accumulation layer at one end close to the water distributor, the side of the water accumulation layer far away from the water distributor is sequentially provided with a planting packing layer, a water storage packing layer and a disinfection layer, and the other end of the disinfection layer far away from the water distributor is also provided with a drain pipe on the biological detention pond.

Optionally, a first gate valve is arranged between the sludge collection tank and the ash water collection tank, and one end of the first gate valve, which is far away from the sludge collection tank, is connected with a check valve.

Optionally, the sludge collection tank is provided with a grid for intercepting floating objects and suspended matter in the grey water.

Optionally, the grey water collecting tank is provided with at least one vent hole, the grey water collecting tank is further provided with a mud pipe, and one end of the mud pipe, which is far away from the grey water collecting tank, is provided with a second gate valve.

Optionally, the water storage filler layer comprises a fine sand and sawdust layer close to one end of the planting filler layer and a gravel layer close to one end of the disinfection layer; the height ratio of the fine sand and wood chip layer to the gravel layer is 2: 1.

Optionally, waterproof geotextiles are arranged between the planting filler layer and the fine sand sawdust layer, between the fine sand sawdust layer and the gravel layer, and between the gravel layer and the disinfection layer in the bioretention pond.

Optionally, the disinfection layer is filled with antibacterial filler zeolite loaded with copper oxide.

The beneficial effects of the utility model reside in that:

1. the utility model discloses well buck collecting box top is provided with the air vent and does benefit to the air and gives off, when the water level in the buck collecting box is higher than the U-shaped pipe on the courage of falling into the water, the siphon takes place for the courage of falling into the water, the ponding layer on biological detention pond is evenly sprayed through the water-locator on the outlet pipe of the courage of falling into the water bottom to the buck in the buck collecting box, the rural building buck of buck collecting one day is concentrated the discharge in this time quantum that the siphon takes place for the courage of falling into the water, thereby this can let biological detention pond produce the wet and dry phenomenon.

2. The utility model discloses planting the packing layer and adopting preferred ratio to construct, have stronger structural stability, the fine aggregate is difficult for the migration outflow, and high low water permeability filler structure helps forming good oxygen, anaerobic zone simultaneously, provides favourable environment for nitration and denitrification, has strengthened pollutant removal performance to fine sand in the water storage packing layer adds the saw-dust as additional carbon source, provides the condition for the denitrification process; the waterproof geotextile of each layer in the biological retention tank can effectively retain sand loss, discharge redundant liquid and gas in the filler layer and enhance the stability of the filler layer; the sterilizing layer is filled with antibacterial filler zeolite loaded with copper oxide, SS is removed by filtering the antibacterial filler when water flows through the sterilizing layer, and the zeolite can further remove phosphorus in sewage and efficiently kill pathogenic bacteria for sterilization.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of the whole structure of a facility for collecting and treating grey water of village buildings according to the present invention.

Reference numerals: the device comprises a water inlet pipe 1, a sludge collection tank 2, a first gate valve 3, a check valve 4, an ash water collecting tank 5, a vent hole 6, a water falling liner 7, a sludge discharge pipe 8, a second gate valve 9, a water outlet pipe 10, a water distributor 11, a water accumulation layer 12, a planting filler layer 13, a fine sand and wood chip layer 14, a gravel layer 15, a disinfection layer 16, a drain pipe 17, a biological detention tank 18, a water storage filler layer 19 and a grid 20.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1, a village building grey water collecting and processing facility is shown, which is connected to a source of grey water discharged from a village building, and comprises a water inlet pipe 1 connected to the source of grey water and a sludge collecting tank 2 connected to the water inlet pipe 1, wherein the sludge collecting tank 2 is provided with a grid 20 for intercepting floating objects and suspended objects in the grey water, and the grid 20 is used for intercepting larger floating objects and suspended objects in the grey water, such as: the device comprises a fiber, broken leather, hair, cloth strips, plastic products and the like, prevents pipelines from being blocked and wound, reduces scum generated by subsequent treatment, and ensures normal operation of a sewage treatment facility, wherein a sludge collection tank 2 is communicated with an ash water collection tank 5, a first gate valve 3 is arranged between the sludge collection tank 2 and the ash water collection tank 5, one end of the first gate valve 3 far away from the sludge collection tank 2 is connected with a check valve 4, the check valve 4 prevents ash water in the ash water collection tank 5 from flowing back into a water inlet pipe 1, the first gate valve 3 is closed when the ash water collection tank 5 is cleaned, at least one vent hole 6 is arranged on the ash water collection tank 5, a sludge discharge pipe 8 is also arranged on the ash water collection tank 5, a second gate valve 9 is arranged at one end of the sludge discharge pipe 8 far away from the ash water collection tank 5, the bottom of the ash water collection tank 5 is obliquely arranged along the direction of the sludge discharge pipe 8 for, the water falling liner 7 comprises a water outlet which is sequentially connected with a water outlet pipe 10 and a water distributor 11, and one end of the water distributor 11 far away from the grey water collecting tank 5 is provided with a biological detention pool 18 in a matching way; the inside of the biological retention tank 18 close to the water distributor 11 is provided with a water accumulation layer 12, one side of the water accumulation layer 12 far away from the water distributor 11 is also sequentially provided with a planting filler layer 13, a water storage filler layer 19 and a disinfection layer 16, and the water storage filler layer 19 comprises a fine sand and wood chip layer 14 close to one end of the planting filler layer 13 and a gravel layer 15 close to one end of the disinfection layer 16; the height ratio of the fine sand and wood chip layer 14 to the gravel layer 15 is 2:1, the ratio of fine sand to wood chips in the fine sand and wood chip layer 14 is 95:5, the particle size of the fine sand is 0.25mm-0.5mm, the gravel layer 15 is composed of gravel with the particle size of 3mm-6mm, a drain pipe 17 is further arranged on a biological retention pool 18 at one end of the disinfection layer 16, which is far away from the water distributor 11, antibacterial filler zeolite loaded with copper oxide is filled in the disinfection layer 16, and waterproof geotextiles are arranged between the planting filler layer 13 and the fine sand and wood chip layer 14, between the fine sand and wood chip layer 14 and the gravel layer 15, and between the gravel layer 15 and the disinfection layer 16 in the biological retention pool 18.

The specific embodiment is as follows:

when village building grey water in southwest is discharged, the grey water flows into a collecting facility through a water inlet pipe 1 and then flows to a processing facility, and a grid 20 in a mud collecting pool intercepts larger floating objects and suspended matters in the grey water, such as: the fiber, the broken skin, the hair, the cloth strips, the plastic products and the like are prevented from blocking and winding the pipeline, the scum generated by the subsequent treatment is reduced, and the normal operation of the sewage treatment facility is ensured. The check valve 4 is to prevent the grey water in the grey water collecting tank 5 from flowing backwards into the inlet pipe 1, the gate valve being closed when the grey water collecting tank 5 is cleaned. The average grey water discharge amount of one person in village buildings in the southwest region is 189.2L/d through measurement, the grey water discharge amount of one village building in the southwest region is calculated according to three persons, the grey water discharge amount of the village buildings in the five southwest regions is 567.6L/d, the grey water discharge amount of the village buildings in the five southwest regions is 2838L/d, and grey water collected by a grey water collecting box 5 is grey water of the village buildings in the five southwest regions. The length, width and height of the ash water collecting box 5 are as follows: 2000mm x 1500mm x 1000mm, the inner water falling container 7 is arranged at the center of the inner water falling container, the top of the U-shaped pipe in the inner water falling container 7 is positioned at 850mm, and the grey water collecting box 5 collects five village building grey water in the southwest region. When the water level of the grey water of five rural buildings in 1 day is higher than that of a U-shaped pipe on the water dropping liner 7, the water dropping liner 7 is siphoned, the grey water in the grey water collecting tank 5 is uniformly sprayed on a water accumulation layer 12 of the biological retention tank 18 through a water distributor 11 on a water outlet pipe 10 at the bottom of the water dropping liner 7, the grey water collecting tank 5 collects the grey water of village buildings in the southwest region of one day and is intensively discharged in the time period when the water dropping liner 77 is siphoned, and the biological retention tank 18 can generate a dry-wet alternation phenomenon, so that the grey water treatment is more efficient. The planting filler layer 13 is formed by mixing sandy loam, quartz sand and river sand at the filler depth of 300mm, and the proportion is sandy loam: quartz sand: river sand is 1: 2: 2; the depth of the water storage filler layer 19 is 300mm, wherein the depth of the fine sand and wood chip layer 14 is 200mm, and the depth of the fine sand is as follows: the wood chips are 95:5, the fine sand has the grain diameter of 0.25mm-0.5mm, the gravel layer 15 has the depth of 100mm and consists of gravels with the grain diameter of 3mm-6 mm; the depth of the disinfection layer 16 is 100mm, and antibacterial filler zeolite loaded copper oxide is filled in the disinfection layer. The vegetation in the planting filler layer 13 improves the hydraulic permeability of the medium layer through the root system and has obvious removal effect on TSS, COD, TN and TP. Meanwhile, the high-low water permeability filler structure is beneficial to forming an aerobic region and an anaerobic region, provides a favorable environment for nitrification and denitrification, enhances the pollutant removal performance, and provides conditions for the denitrification process by taking fine sand and sawdust in the water storage filler layer 19 as an external carbon source so as to improve the nitrogen removal rate. The NH4+ -N is removed by the adsorption of the filler (the planting filler layer 13 and the water storage filler layer 19), the absorption of the plants and the aerobic nitrification reaction in the planting filler layer 13. NO3- -N and TN are both removed mainly by nitrification and denitrification in the system. Phosphorus depends primarily on adsorption by fillers and absorption by plants. The TSS is trapped primarily by the layers of plant packing 13. COD is adsorbed by the microorganisms of the plant root system and is removed through assimilation and dissimilation, and meanwhile, the pollutants can be absorbed by the plants and the microorganisms through oxygen released by the plant root system and can also be removed through nitrification, accumulation, degradation, complexation, adsorption and other actions. The waterproof geotextile of each layer in the biological retention tank 18 can effectively retain sand loss, discharge redundant liquid and gas in the filler layer and enhance the stability of the filler layer. The sterilizing layer 16 is filled with antibacterial filling zeolite loaded with copper oxide, SS is removed by filtering the antibacterial filling when water flows through the sterilizing layer 16, phosphorus in sewage can be further removed by the zeolite, pathogenic bacteria can be efficiently killed for sterilization, and then the water is discharged through a water discharge pipe 17.

The rural building grey water treatment effect in the specific embodiment is as follows:

the effluent quality meets the secondary standard GB18918-2002 for pollutant discharge standard of urban sewage treatment plants. Wherein TSS, TN and TN meet the primary A standard of pollutant emission standard GB18918-2002 of urban sewage treatment plants.

The management and maintenance of the system can be divided into regular maintenance and irregular maintenance.

And (3) regular maintenance: cleaning the sludge collecting tank 2 once a year, cleaning the sludge collecting tank 5 once every five years, discharging and cleaning the sludge collecting tank 5 once every quarter, cleaning the surface waste and garbage of the biological filter, scraping a 2-5cm layer of the top of the medium when necessary, and replacing new filler to reduce blockage; meanwhile, weeds in the top growing area are removed; in addition, the sediment condition in the front end adjusting water tank should be checked regularly, and if the sediment is more, the sediment should be removed.

Irregular maintenance: mainly checks the growth condition of the plant, and if the growth condition of the plant is not good enough, the plant type which is more adaptive can be considered to be changed. At the same time, the lateral shell can be disassembled, the layers of filler and the permeable geotextile can be checked for plugging, to determine if replacement is required (unscheduled maintenance should be performed when there is a significant reduction in filtration capacity of the system, and at a minimum once a year).

The utility model discloses well buck collecting box top is provided with the air vent and does benefit to the air and gives off, when the water level in the buck collecting box is higher than the U-shaped pipe on the courage of falling into the water, the siphon takes place for the courage of falling into the water, the ponding layer on biological detention pond is evenly sprayed through the water-locator on the outlet pipe of the courage of falling into the water bottom to the buck in the buck collecting box, the rural building buck of buck collecting one day is concentrated the discharge in this time quantum that the siphon takes place for the courage of falling into the water, thereby this can let biological detention pond produce the wet and dry phenomenon.

The utility model discloses planting the packing layer and adopting preferred ratio to construct, have stronger structural stability, the fine aggregate is difficult for the migration outflow, and high low water permeability filler structure helps forming good oxygen, anaerobic zone simultaneously, provides favourable environment for nitration and denitrification, has strengthened pollutant removal performance to fine sand in the water storage packing layer adds the saw-dust as additional carbon source, provides the condition for the denitrification process; the waterproof geotextile of each layer in the biological retention tank can effectively retain sand loss, discharge redundant liquid and gas in the filler layer and enhance the stability of the filler layer; the sterilizing layer is filled with antibacterial filler zeolite loaded with copper oxide, SS is removed by filtering the antibacterial filler when water flows through the sterilizing layer, and the zeolite can further remove phosphorus in sewage and efficiently kill pathogenic bacteria for sterilization; the treatment cost is low, the treatment efficiency is high, and bacteria in the grey water can be effectively removed.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims (7)

1. A village building buck is collected and is handled facility, links to each other with rural building discharge buck water source, its characterized in that: the device comprises a water inlet pipe communicated with a grey water source and a sludge collecting tank communicated with the water inlet pipe, wherein the sludge collecting tank is communicated with a grey water collecting tank, a water falling liner is arranged in the grey water collecting tank, the water falling liner comprises a water outlet, the water outlet is sequentially connected with a water outlet pipe and a water distributor, and one end of the water distributor, which is far away from the grey water collecting tank, is matched with a biological retention tank;

the biological detention pond is characterized in that one end, close to the water distributor, inside the biological detention pond is a water accumulation layer, one side, far away from the water distributor, of the water accumulation layer is sequentially provided with a planting packing layer, a water storage packing layer and a disinfection layer, and one end, far away from the water distributor, of the disinfection layer is further provided with a drain pipe on the biological detention pond.

2. A village building grey water collection and treatment facility according to claim 1, wherein: a first gate valve is arranged between the sludge collection tank and the ash water collection tank in a communicated mode, and one end, far away from the sludge collection tank, of the first gate valve is connected with a check valve.

3. A village building grey water collection and treatment facility according to claim 1, wherein: the sludge collection tank is provided with a grid for intercepting floating objects and suspended matters in the grey water.

4. A village building grey water collection and treatment facility according to claim 1, wherein: the ash water collecting box is provided with at least one vent hole, the ash water collecting box is also provided with a mud discharging pipe, and one end of the mud discharging pipe, which is far away from the ash water collecting box, is provided with a second gate valve.

5. A village building grey water collection and treatment facility according to claim 1, wherein: the water storage filler layer comprises a fine sand and sawdust layer close to one end of the planting filler layer and a gravel layer close to one end of the disinfection layer; the height ratio of the fine sand and wood chip layer to the gravel layer is 2: 1.

6. A village building grey water collection and treatment facility according to claim 5, wherein: waterproof geotextiles are arranged between the planting filler layer and the fine sand and sawdust layer, between the fine sand and sawdust layer and the gravel layer and between the gravel layer and the disinfection layer in the bioretention pond.

7. A village building grey water collection and treatment facility according to claim 1, wherein: the disinfection layer is filled with antibacterial filler zeolite loaded copper oxide.

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