CN1141260C

CN1141260C - Circular efficient domestic sewage purifying methane apparatus

Info

Publication number: CN1141260C
Application number: CNB001285610A
Authority: CN
Inventors: 胡海良
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-14
Filing date: 2000-11-14
Publication date: 2004-03-10
Anticipated expiration: 2020-11-14
Also published as: CN1351970A

Abstract

The present invention relates to an annular biogas device for purifying domestic sewage with high efficiency, which is mainly composed of water-retaining walls and a circular ring-shaped fermentation chamber clamped by a plurality of concentric circles. The passing route of the domestic sewage in the device is more than three times than that of a general circular device so as to farthest increase the useful detention space of the domestic sewage, decrease construction volume, reduce the cost of purification engineering and greatly improve the purification efficiency of the domestic sewage.

Description

Circular efficient domestic sewage purifying methane apparatus

Technical field:

The present invention relates to a kind of improved purifying domestic sewage firedamp gas equipment, be suitable for efficiently handling sanitary sewages such as various dwelling houses, biotope, catering trade, make the sanitary sewage of handling reach waste discharge primary standard among the GB8978-1996 that State Bureau of Environmental Protection requires.

Background technology:

Can't reach the new the highest permission emission concentration standard of second pollutant GB8978-1996 by the design among the existing sanitary sewage purifying biogas generating pit standard collective drawings 90SS-1.Reach new emission standard and just must increase the design volume, prolong the sanitary sewage residence time, will increase considerably cost like this.

Summary of the invention:

The present invention is big for the construction volume that solves existing sanitary sewage purifying biogas generating pit existence, the difficult problem that cost is high, and through conscientiously research, the invention of circular efficient domestic sewage purifying methane apparatus has been finished in test finally.The objective of the invention is for a kind of efficient purifying domestic sewage firedamp gas equipment that annular sweathouse and waterwall combine that has is provided.It is less that its design volume increases the volumetrical part comparatively speaking, and sanitary sewage is long residence time, the purification efficiency height, and laid down cost is lower comparatively speaking.

The technical solution used in the present invention is: whole purifying methane apparatus is made of sand setting grease tank, one-level ring shaped anaerobic pond, catch-basin, secondary ring shaped anaerobic pond, aerobic filtering basin.A kind of circular efficient domestic sewage purifying methane apparatus, by sand setting grease tank, one-level ring shaped anaerobic pond, catch-basin, secondary ring shaped anaerobic pond, aerobic filtering basin connect to form with aqueduct, it is characterized in that: between sand setting grease tank [1] and one-level ring shaped anaerobic pond [2] and catch-basin [3] and secondary anaerobic pond [4] be by 30 cm diameters aqueduct successively order be connected; One-level ring shaped anaerobic pond and secondary ring shaped anaerobic pond all are respectively to constitute the peripheral annular passage by the folded ring wall of several concentric drums, sanitary sewage adopts clockwise from inside to outside from central authorities or the 1st circumference or advances along the annulus rotation counterclockwise, and the bottom of each annular sweathouse improves into successively that ladder is arranged or on same horizontal plane.

Technical process is as follows: water-in → sand setting grease tank [1] → one-level ring shaped anaerobic pond [2] → catch-basin [3] → secondary ring shaped anaerobic pond [4] → aerobic filter tank [5] → water outlet.

Below in conjunction with accompanying drawing invention is described in further detail.

Fig. 1 is the flow process floor map of one embodiment of the present invention.

Fig. 2 is a kind of enforcement concrete structure sectional view of the present invention.

Embodiment:

Circular efficient domestic sewage purifying methane apparatus shown in Figure 1 is made up of sand setting grease tank [1], one-level ring shaped anaerobic pond [2], catch-basin [3], secondary ring shaped anaerobic pond [4], Aerobic Pond [5].Aqueduct by 30 cm diameters is linked in sequence successively.

Sand setting grease tank [1] and one-level ring shaped anaerobic pond [2] are that 30 centimetres cement pipe is connected by diameter.Catch-basin [3] is connected with secondary ring shaped anaerobic pond [4], and secondary ring shaped anaerobic pond [4] is connected with Aerobic Pond [5].

One-level ring shaped anaerobic [2] and secondary ring shaped anaerobic pond [4] structure are basic identical, they all are respectively to be made of the annular of the folded one-tenth of several concentric drums and dash partition wall, sanitary sewage is 30 centimetres cement pipe introducing pond central authorities by diameter, begin clockwise or be rotated counterclockwise by pond central authorities or first circular circuit, sewage whenever revolve turn around must from last or under cross over 1～2 width of cloth dash partition wall, sewage enters first the circular circuit in secondary ring shaped anaerobic pond or the centre in secondary ring shaped anaerobic pond through aqueduct again through rotating 1 peripheries of flowing out annular pools to a few backs from inside to outside.

Sanitary sewage between the one-level anaerobically fermenting in clockwise or be rotated counterclockwise and advance, it must cover annular sweathouse whole process, just can reach secondary ring shaped anaerobic sweathouse.Because annular sweathouse is long and narrow especially, therefore each sanitary sewage that flows into all can make the sanitary sewage of whole sweathouse squeeze the moving effect of playing stirring forward.Sanitary sewage is every through a complete annular sweathouse passage, and promptly the distance that is flow through from the water-in to the water outlet is three times of typical circular anaerobically fermenting pond diameter.The typical circular anaerobically fermenting pond sanitary sewage distance L=D (pond diameter) that flows through, and distance L=2 π R＞3D that sanitary sewage is flowed through in the ring shaped anaerobic fermentation vat.The annular fermentation vat of two circles to three circle rotations arranged, and the sanitary sewage distance of flowing through is 6 times and 9 times of typical circular anaerobically fermenting pond diameter.Fermented substrate has adequate time to contact and the digestion that is decomposed with microorganism with the space.

With reference to Fig. 2, sanitary sewage is 30 centimetre every [1] through a diameter from desilting, length is that the aqueduct of anaerobic pond radius flows into one-level ring shaped anaerobic pond, through flowing into sedimentation basin [3] after three circumference of rotation, flow into secondary ring shaped anaerobic pond [4] through flowing into aerobic filter tank [5] after three circumference of rotation through aqueduct again, flow to total water outlet at last.The inner annular sweathouse constitutional features in one-level ring anaerobic pond and secondary ring shaped anaerobic pond is among Fig. 2, and pond central authorities are the darkest, and each rotates round structural base and improves into the ladder arrangement successively.Get final product effective sedimentation mud like this, when clearing up a sediment every year, can disposable most sediments be extracted out from central pond again.The constitutional features of the waterwall among Fig. 1 [6] is low 20 centimetres of its aspect ratio annular core wall.Its bottommost centre has one 10 * 100 centimetres dirty clean-up port, makes mud be easy to be taken away.The effect of waterwall is the resistance that increases current, and the speed of slowing down current, improves sewage purification and renders a service at the residence time of increase sanitary sewage.

Claims

1. circular efficient domestic sewage purifying methane apparatus, connect to form with aqueduct by sand setting grease tank, one-level ring shaped anaerobic pond, catch-basin, secondary ring shaped anaerobic pond, aerobic filtering basin, it is characterized in that: between sand setting grease tank [1] and one-level ring shaped anaerobic pond [2] and catch-basin [3] and secondary anaerobic pond [4] be by 30 cm diameters aqueduct successively order be connected; One-level ring shaped anaerobic pond and secondary ring shaped anaerobic pond all are respectively to constitute the peripheral annular passage by the folded ring wall of several concentric drums, sanitary sewage adopts clockwise from inside to outside from central authorities or the 1st circumference or advances along the annulus rotation counterclockwise, and the bottom of each annular sweathouse improves into successively that ladder is arranged or on same horizontal plane.

2. circular efficient domestic sewage purifying methane apparatus according to claim 1, it is characterized in that: in each the peripheral annular passage in one-level ring shaped anaerobic pond [2] and the secondary ring shaped anaerobic pond [4] 1～2 width of cloth dash partition wall [6] is arranged, low 20 centimetres of the aspect ratio annular walls of waterwall, waterwall bottom centre is reserved with 10 * 100 centimetres mud clean-up port, and mud is arbitrarily passed through.