CN202156974U

CN202156974U - Rural domestic sewage emission reduction device

Info

Publication number: CN202156974U
Application number: CN201120113440XU
Authority: CN
Inventors: 周北海; 马方曙; 徐东勇; 王和祥; 郭佳佳
Original assignee: University of Science and Technology Beijing USTB
Current assignee: University of Science and Technology Beijing USTB
Priority date: 2011-04-18
Filing date: 2011-04-18
Publication date: 2012-03-07
Anticipated expiration: 2021-04-18

Abstract

The utility model relates to a rural domestic sewage emission reduction device, which belongs to the technical field of water treatment. The device is a contact anaerobic reaction chamber additionally provided with a cover plate at the top, and the reaction chamber comprises three units of an oil separation tank, an anaerobic tank and a sedimentation tank. An oil separation plate is arranged in the middle of the oil separation tank, and the top end of the oil separation plate is higher than a water outlet. The anaerobic tank is provided with a plurality of flow guide plates and divided into an upper flow chamber and a lower flow chamber, and top ends of flow guide plates are higher than the top end of a partition plate to enable waste water to flow back and pass through the anaerobic tank. The partition plate is additionally arranged in the sedimentation tank, and porous suspended sphere fillers or three-dimensional elastic fillers are hung in the whole reaction chamber. The rural domestic sewage emission reduction device has the advantages that flow guide plates are additionally positioned in the anaerobic tank, thereby achieving the purpose of evenly distributing water and buffering water flow; and fillers are additionally hung, thereby being favorable for growth of microorganism, improving removal rate, simultaneously reducing yield of sludge, prolonging cleaning period and bringing convenience to management and maintenance.

Description

A kind of domestic sewage in rural areas by using emission reduction device

Technical field

The utility model belongs to water-treatment technology field, relates to a kind of domestic sewage in rural areas by using that pipe network is difficult to collect that is used to handle, the domestic sewage in rural areas by using emission reduction device of contact anaerobism waste disposal plant.

Background technology

For a long time, because aspects such as economy, Environmental awareness, the improvement of sewage mainly concentrates on Urban areas densely populated and that the sewage collecting pipe network can be collected.The live on one's own life Rural areas of source of sewage of dispersive, the not treated receiving water body that directly enters of most of sewage arranged in that population is not too intensive.Domestic sewage in rural areas by using is one of reason that causes the Rural Water Environment pollution, is the main source of pollution of area source, is the important factor that causes lake eutrophication.In Chinese society doctrine new countryside construction, also proposed to handle the requirement of country sewage.

Domestic sewage in rural areas by using mainly comprises the waste water of flushing the toilet, bath wastewater, washes dish waste water and kitchen washes, have that the water yield is little, discharging disperses, intermittently, the characteristics of good biodegradability.The town sewage tupe that centralized collection focuses on is not suitable for applying in the Rural areas.Domestic sewage in rural areas by using should be according to the water yield and the distribution of local sewage, take technology simple, build that running cost is low, management maintenance is easy to technology and handles.

Present some abundant relatively or higher countries and regions of the level of economic development of soil owning amount per capita; Its country sewage treatment technology mainly concentrates on artificial swamp treatment technology, stabilization pond treatment technology, membrane technology, land treatment system, blodisc treatment technology, dribble-feed filtering technique etc.; Though these technology difference to some extent on principle all shows good treatment effect.In practical application, can select to use to different drainage patterns, water pollution characteristic and life style.

Practical situation according to China rural area; Foreign technology directly is applied in China's country sewage and handles upward some weakness of existence: the artificial swamp treatment technology of single type, stabilization pond treatment technology and soil filtration system are big to soil occupation of land demand; Easy blocking; Winter, treatment effect reduced, and other equipment treatment technology treatment facility is expensive, and the cost of investment of ton water is high; And China's land resources is poor relatively, and economic force is weak, and the waste water treatment project in China rural area is non-profile public welfare project, and it lacks normal commercialized running ability, difficulty in raising funds.

It is unit that most of artificial swamps, stabilization pond and soil filtration technology are taked with the village, and sewage is carried out collection and treatment, belongs to the country sewage treatment technology of concentrating relatively; The pipe network that needs to lay certain-length is collected sewage, but the house in rural area and road etc. are built the often planning of lack of uniform, and layout is more in disorder; Pipe network is laid difficulty, have in addition pipe network can't arrive, simultaneously; Part resident family is away from the centralized residence district; If its single pavement pipe network will certainly increase construction cost, therefore; To the area that these pipe networks are difficult to collect, take independent WWT measure that sewage collecting processing rate that improves full village and the look of a village village looks of improving full village are seemed very necessary.

Summary of the invention

In order to address the above problem, the purpose of the utility model provides a kind of country sewage that can collect, adopts contact anaerobic method, reaches the domestic sewage in rural areas by using emission reduction device of the purpose of COD and nitrogen phosphorus reduction of discharging.

The utility model technical scheme be: a kind of domestic sewage in rural areas by using emission reduction device, the rectangular parallelepiped reaction chamber of cover plate is added a cover at this device top, and the water inlet pipe and the rising pipe that are located at the reaction chamber two ends; Said reaction chamber is composed in series by oil trap, anaerobic pond and settling tank successively;

The medium position of said oil trap is provided with oil separating plate, and said oil separating plate is fixed in the said oil trap through two sides, and certain intervals is arranged at said oil separating plate bottom and said oil trap bottom;

Said anaerobic pond inherence is along being provided with polylith dividing plate and flow deflector on the water (flow) direction, said dividing plate is fixed on the said anaerobic pond bottom; Said flow deflector is fixed in the said anaerobic pond through two sides; Certain intervals is arranged at the bottom of said flow deflector and said anaerobic pond bottom; Said dividing plate and said flow deflector are divided into a plurality of placed in-line upstream rooms and downstream room with said anaerobic pond; Said upstream room width is greater than downstream room, and width is than being 3:1;

The medium position of said settling tank is provided with said dividing plate;

This device also comprises filler, and said filler is installed in the reaction chamber through stuffing frame.

Further, said oil separating plate is processed by galvanized sheet iron.

Further, said filler is porous suspended ball filler or 3 D elastic filler.

Further, the reaction chamber bottom is equipped with shore pipe, is used for periodic blow down mud; Be used to increase sewage and biomembranous contact area, reduce sludge quantity, prolong and draw clearly or sludge discharging period; Reinforcing mass transfer helps each reaction chamber to the holding back of mikrobe and suspended solids, and improves treatment effect.

According to practical situation, the utility model device can be built on the ground or be embedded in underground, for the ground type device, in its bottom shore pipe is set, regularly spoil disposal; Take the artificial mode spoil disposal of drawing clearly for underground or semi-underground type device.

The beneficial effect of the utility model is: owing to adopt technique scheme, the country sewage of collection adopts contact anaerobic method, reaches the domestic sewage in rural areas by using emission reduction device of the purpose of COD and nitrogen phosphorus reduction of discharging.

Description of drawings

Fig. 1 is the structural representation of the embodiment 1 of utility model.

Fig. 2 is the cross-sectional schematic of the embodiment 1 of utility model.

Fig. 3 is the structural representation of porous suspended ball filler.

Fig. 4 is the structural representation of 3 D elastic filler.

Among the figure:

1, reaction chamber	5, dividing plate
		11, oil trap	6, flow deflector
12, anaerobic pond	7, filler
		13, settling tank	8, filler frame
2, water inlet pipe	9, shore pipe
		3, rising pipe	10, upstream room
4, oil separating plate	14, downstream room

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Shown in Fig. 1-2, a kind of domestic sewage in rural areas by using emission reduction device of the utility model, this device comprise that this device top adds a cover the rectangular reaction chamber 1 of cover plate, water inlet pipe 2 and rising pipe 3, oil separating plate 4, dividing plate 5, flow deflector 6, filler frame 8 and shore pipe 9;

Reaction chamber 1 is composed in series by oil trap 11, anaerobic pond 12 and settling tank 13 successively, the water inlet pipe 2 and the rising pipe 3 at the two ends of reaction chamber 1, and filler 7 is installed in the reaction chamber 1 through filler frame 8, and the bottom of reaction chamber 1 is provided with shore pipe 9; The medium position of oil trap 11 is provided with oil separating plate 4; Two sides of oil separating plate 4 are fixed on the sidewall of oil trap 11; Certain intervals is arranged at the bottom of the bottom of oil separating plate 4 and oil trap 4, and sewage is passed through, and most vegetable and animals oils is trapped within the top of oil trap 11 in the sewage; Alleviate the restraining effect of vegetable and animals oils, prevent the biofilm detachment that causes attached to filling surface because of vegetable and animals oils microorganism growth;

Anaerobic pond 12 inherences are along being provided with polylith dividing plate 5 and flow deflector 6 on the water (flow) direction, dividing plate 5 is fixed on the bottom of anaerobic pond 12; Two sides that flow deflector 6 passes through are fixed in the anaerobic pond 12; Certain intervals is left in the bottom of the bottom of flow deflector 6 and anaerobic pond 12; Dividing plate 5 is divided into a plurality of placed in-line upstream rooms 10 and downstream room 14 with flow deflector 6 with anaerobic pond 12; Upstream room width 10 and downstream room 14 width are than being 3:1, settling tank 13 medium position dividing plate 5 is set.

As shown in Figure 3, after porous suspended ball filler 7 usefulness cords string, be fixed on the center iron wire of filler frame 8.

As shown in Figure 4, stereo-elastic is filled out 7 and can directly be fixed on the center iron wire of filler frame 8.

The principle of work of the utility model is:

Sewage enters into through water inlet pipe 2 in the oil trap 11 of reaction chamber 1, and effluent stream is through oil separating plate 4 and oil trap 11 intervals, and most vegetable and animals oils is trapped within the top of oil trap 11 in the sewage; The bigger suspended substance of particle is also held back and is precipitated in the while waste water, and water outlet gets in the anaerobic pond 12, and sewage gets in the upstream rooms 11 through downstream room 14 with fast speeds; Play certain stirring action, and in upstream room 11, flow velocity diminishes; A large amount of microbial solids is trapped within the upstream room 11; Water outlet is dammed after the deposition through settling tank 13 again, and through rising pipe 3 discharging, mud is from shore pipe 9 cleanings of reaction chamber bottom.

Present embodiment is that the sewage with Erhai, Bai Autonomous Prefecture of Dali Deng Chuan town, Yunnan Province project Deng Chuan workstation is a process object.The sewage index is as shown in table 1.

Table 1 water inlet index unit (mg/L)

PH	COD _Cr	TP	TN	NH ₄ ⁺-N
					6-9	299.03	4.94	49.39	43.58

The utility model is the rectangular parallelepiped reaction chamber of adding a cover cover plate with the top, and size dimension is 1000mm * 300mm * 800mm.Water inlet pipe 1 is installed in the reaction chamber two ends respectively with rising pipe 5.Reaction chamber is made up of oil trap (11), anaerobic pond (12) and (13) 3 unit of settling tank; Oil trap length is 300mm; The middle part is provided with 1 oil separating plate that is processed by galvanized sheet iron (4); Most vegetable and animals oils is trapped within the top of oil trap in the sewage, and the bigger suspended substance of particle is also held back at this reaction chamber and precipitated in the while waste water.The water outlet of oil trap gets into anaerobic pond, and anaerobic pond length is 400mm, and the middle part is provided with dividing plate (5) and the flow deflector of being made by galvanized sheet iron (6), and anaerobic pond is divided into 4 placed in-line sub-reaction chambers.The water outlet of anaerobic pond is dammed through settling tank and is precipitated discharging afterwards.Settling tank length is 400mm, and the middle part is provided with 1 dividing plate (5).In whole device, carry additionally porous suspended ball filler or 3 D elastic filler, intensifying treatment effect reduces sludge yield.

The residence time of waste water in reaction chamber is 21h, and volumetric loading is 0.32kgCOD/m ³D, sewage on average go out water concentration and are after emission reduction device is handled: COD _Cr126.12mg/L, TP3.36 mg/L, TN42.30 mg/L, NH ₄ ⁺-N37.76 mg/L, COD _CrClearance be 57.8%, the clearance of TP is 32%, the clearance of TN is 14.4%, NH ₄ ⁺The clearance of-N is 13.4%, and certain emission reduction effect is arranged.

Claims

1. a domestic sewage in rural areas by using emission reduction device is characterized in that, the rectangular parallelepiped reaction chamber (1) of cover plate is added a cover at this device top, and the water inlet pipe (2) and the rising pipe (3) that are located at said reaction chamber (1) two ends; Said reaction chamber (1) is composed in series by oil trap (11), anaerobic pond (12) and settling tank (13) successively;

The medium position of said oil trap (11) is provided with oil separating plate (4), and said oil separating plate (4) is fixed in the said oil trap (11) through two sides, and certain intervals is arranged at said oil separating plate (4) bottom and said oil trap (11) bottom;

Said anaerobic pond (12) is inherent along polylith dividing plate (5) and flow deflector (6) are set on the water (flow) direction, and said dividing plate (4) is fixed on said anaerobic pond (12) bottom; Said flow deflector (6) is fixed in the said anaerobic pond (12) through two sides; Certain intervals is arranged at the bottom of the bottom of said flow deflector (6) and said anaerobic pond (12); Said dividing plate (5) and said flow deflector (6) are divided into a plurality of placed in-line upstream rooms (10) and downstream room (14) with said anaerobic pond (12), and said upstream room (10) is 3:1 with downstream room (14) width ratio;

The medium position of said settling tank (13) is provided with said dividing plate (5);

This device also comprises filler (7), and said filler (7) is installed in the reaction chamber (1) through stuffing frame (8).

2. sewage emission reduction device according to claim 1 is characterized in that, said oil separating plate (4) is processed by galvanized sheet iron.

3. sewage emission reduction device according to claim 1 is characterized in that, said filler (9) is porous suspended ball filler or 3 D elastic filler.

4. sewage emission reduction device according to claim 1 is characterized in that, said reaction chamber (1) bottom is equipped with shore pipe (9), is used for periodic blow down mud.