CN201648122U

CN201648122U - Trickle-filtration and artificial wetland system for treating domestic sewage in villages and small towns

Info

Publication number: CN201648122U
Application number: CN2010201243915U
Authority: CN
Inventors: 魏俊; 陈国芬; 王银龙; 陶如钧; 许高金; 蒋波
Original assignee: Hydrochina East China Engineering Corp
Current assignee: Hydrochina East China Engineering Corp
Priority date: 2010-02-02
Filing date: 2010-02-02
Publication date: 2010-11-24
Anticipated expiration: 2020-02-02

Abstract

The utility model relates to a trickle-filtration and artificial wetland system for treating domestic sewage in villages and small towns, as well as a technology. The technical problem to be solved in the utility model is to provide the trickle-filtration and artificial wetland system for treating domestic sewage in villages and small towns, which has simple operation and low running cost, and leads the quality of output water to be stable and up to the standard, as well as the technology. The technical scheme for solving the technical problem is as follows: the trickle-filtration and artificial wetland system comprises an anaerobic jar treating unit, a trickle-filtration treating unit, an artificial wetland unit and a land infiltration system that are connected in sequence by pipelines, wherein the anaerobic jar treating unit is formed by a first-stage anaerobic tank and a second-stage anaerobic tank which are connected in series, the trickle-filtration treating unit consists of a trickle-filtration circulation jar and a trickle-filtration tank; the artificial wetland unit consists of a surface flow artificial wetland and a water level control well; and an effluent hoisting shaft is arranged between the outlet end of the wetland and the inlet end of the land infiltration system. The trickle-filtration and artificial wetland system can be used for treating domestic sewage in villages and small towns and improving the environmental sanitation of villages.

Description

Handle the trickling filtration artificial wet land system of domestic sewage of villages and small towns

Technical field

The utility model relates to a kind of trickling filtration artificial wet land system of handling domestic sewage of villages and small towns.Be applicable to the processing of domestic sewage of villages and small towns.

Background technology

The less energy-consumption that covets of existing domestic sewage of villages and small towns treatment process causes poor processing effect or failure of apparatus, is fit to integrated apparatus that the little water yield in villages and small towns handles simultaneously and has investment, problem that running cost is high again.

Summary of the invention

The technical problems to be solved in the utility model is: for overcoming the above problems, propose a kind of trickling filtration artificial wet land system of handling domestic sewage of villages and small towns, native system is simple to operate, working cost is low, and stable effluent quality is up to standard.

The technical scheme that the utility model adopted is: the trickling filtration artificial wet land system of handling domestic sewage of villages and small towns, it is characterized in that: this system comprises the anaerobic jar processing unit that connects in turn by pipeline, drip the filter processing unit, artificial swamp unit and land percolation system, described anaerobic jar processing unit is in series by first step anaerobic pond and second stage anaerobic pond, dripping the filter processing unit forms by dripping filter circulation tank and trickling filter, the artificial swamp unit is made up of surface current artificial wetland and water level control well, is provided with the water outlet winding shaft between the inlet end of the exit end of wetland and land percolation system.

The exit end of described filter processing unit and the exit end of water outlet winding shaft are respectively equipped with valve well, between the valve well of water outlet winding shaft exit end and the second stage anaerobic pond effluent recycling pipe are housed.

Described artificial swamp unit is in series by some surface current artificial wetlands, and every surface current artificial wetland's exit is provided with the water level control well.

Described trickling filter has some seats, and trickling filter is equipped with the inlet end that drips the filter circulation tank and drips the filter return water pipe, is provided with mud return line between trickling filter and the second stage anaerobic pond.

Described land percolation system has the pipeline that level is imbedded soil layer aeration zone inside, and the pipeline bottom is the soil layer aeration zone that 1m is thick at least, and the top covering of described pipeline can be planted the soil layer of plant.

The beneficial effects of the utility model are: with anaerobism, to drip filter, artificial swamp, land percolation technology combined, stable effluent quality; The utilization biotechnology is disposed of sewage efficient low-consume; One-piece construction is simple in addition, is convenient to management, has not only saved investment, and has handled domestic sewage of villages and small towns fast and effectively, has improved the rural health environment, has effectively promoted the construction of new socialist countryside.

Description of drawings

Fig. 1 is a system chart of the present utility model.

Embodiment

Embodiment one:

This example is an embodiment of the present utility model when in the sewage network septic tank not being set.As shown in Figure 1, native system comprise two first step anaerobic pond 8-1 that are in series connecting in turn by pipeline and second stage anaerobic pond 8-2, one drip filter circulation tank 1, two placed in-line surface current artificial wetlands 9, water outlet winding shaft 3 and land percolation systems 10.Drip filter circulation tank 1 and be connected with two trickling filters 2, between trickling filter and the second stage anaerobic pond mud return line 7 is housed, the mud of the trickling filter that is used to reflux is to anaerobic pond; Be equipped with between a trickling filter and the filter circulation tank and drip a filter return water pipe 6, the trickling filter treated water that is used to reflux is back to drip filters a circulation tank.The exit of two artificial swamps all is provided with water level control well 5, is used to regulate and control each unitary water level of native system.

All be provided with valve well 4 at the exit end that drips filter circulation tank 1 and the exit end of water outlet winding shaft 3, with the regulation and control that make things convenient for current and the maintenance of equipment.Wherein, be provided with effluent recycling pipe 11 between the valve well 4 of water outlet winding shaft exit end and the second stage anaerobic pond 8-2.

The artificial swamp of present embodiment is the surface current artificial wetland, and emergent in it and submerged plant are alternately arranged.

The technology that present embodiment is handled domestic sewage of villages and small towns is as follows:

1, sanitary sewage enters second stage anaerobic pond 8-2 after being introduced into the anaerobic treatment that first step anaerobic pond 8-1 carries out 12 hours, carry out 12 hours anaerobic treatment again, organic content reduces significantly in the sewage at this moment, sewage is pumped into to drip a filter circulation tank 1 then.

2, sewage stopped 2 hours in dripping filter circulation tank 1, the sewage that drips during this time in the filter circulation tank pumps into the filter processing of trickling filter 2 dos, obtain mud and sewage after dripping filter, mud flows into second stage anaerobic pond by mud return line 7, the sewage that drips after the filter is back to drip and pumps into trickling filter 2 again behind the filter circulation tank 1 and further handle by dripping a filter return water pipe 6, so circular treatment is three times, afterwards, drips sewage gravity inflow artificial swamp 9 in the filter circulation tank;

3, sewage enters water outlet winding shaft 3 after two artificial swamp waterpower stop 7 days altogether, the emergent of artificial swamp and submerged plant alternately arrange and form alternative aerobic/anaerobic environment, reach the good effect that N removes P of taking off.Make that finally water outlet reaches chemical oxygen demand COD≤100mg/l, biochemical oxygen demand (BOD) BOD≤30mg/l, suspended particulates total amount TSS≤30mg/l, the standard of total nitrogen content TN≤25mg/l promotes well pump to land percolation system 10 with water outlet by water outlet at last and carries out advanced treatment.Finally import underground water through the water behind the land percolation, water quality requirement is: at distance land percolation system edges 50m place, groundwater monitoring well water matter must not surpass quality of groundwater standard grade III Standard, when former underground water background value does not satisfy grade III Standard, must not surpass former underground water background value.

Embodiment two:

This example is an embodiment of the present utility model when being provided with septic tank in the sewage network, its structure and sewage treatment process and embodiment one are similar, different is, this programme has only an anaerobic pond, so external reflux circulation tube 11 and mud return line 7 all are communicated to first step anaerobic pond 8-1.

Claims

1. trickling filtration artificial wet land system of handling domestic sewage of villages and small towns, it is characterized in that: this system comprises the anaerobic jar processing unit that connects in turn by pipeline, drip the filter processing unit, artificial swamp unit and land percolation system (10), described anaerobic jar processing unit is in series by first step anaerobic pond (8-1) and second stage anaerobic pond (8-2), dripping the filter processing unit forms by dripping filter circulation tank (1) and trickling filter (2), the artificial swamp unit is made up of surface current artificial wetland (9) and water level control well (5), is provided with water outlet winding shaft (3) between the inlet end of the exit end of wetland and land percolation system.

2. the trickling filtration artificial wet land system of processing domestic sewage of villages and small towns according to claim 1, it is characterized in that: the exit end of described filter processing unit and the exit end of water outlet winding shaft (3) are respectively equipped with valve well (4), between the valve well (4) of water outlet winding shaft exit end and the second stage anaerobic pond (8-2) effluent recycling pipe (11) are housed.

3. the trickling filtration artificial wet land system of processing domestic sewage of villages and small towns according to claim 1, it is characterized in that: described artificial swamp unit is in series by some surface current artificial wetlands (9), and every surface current artificial wetland's exit is provided with water level control well (5).

4. dripping of processing domestic sewage of villages and small towns according to claim 1 filtered and artificial wet land system, it is characterized in that: described trickling filter (2) has some seats, trickling filter is equipped with the inlet end that drips filter circulation tank (1) and drips filter return water pipe (6), is provided with mud return line (7) between trickling filter and the second stage anaerobic pond (8-2).

5. according to the trickling filtration artificial wet land system of claim 1 or 2 or 3 or 4 described processing domestic sewage of villages and small towns, it is characterized in that: described land percolation system (10) has the pipeline that level is imbedded soil layer aeration zone inside, the pipeline bottom is the soil layer aeration zone that 1m is thick at least, and the top covering of described pipeline can be planted the soil layer of plant.