DE2559476A1 - Sewage treatment plant - with bell shaped concentric aeration and preclarification zones inside funnel shaped final clarification basin - Google Patents

Abstract

A sewage treatment plant consists of a single funnel-shaped basin with a sludge collecting it at the bottom and a vertical sludge suction pipe. The central part is turned by a bell-shaped shell with aeration pipes inside into an activation tank. This is surrounded by another concentric pear-shaped shell to produce a preliminary and a final clarification tank. The treatment plants saves cost for the excavation and the appts. The plant operates reliably and has a very low power consumption.

Description

Description The subject matter of the invention is a construction and a set of components for the production of structural and procedural systems as well as one on it coordinated process for the purification of waste water.

Sewage treatment plants of various types and procedures are known and in action. Overall, they mainly solve the problems that arise very imperfect in the interaction of the components, the manufacture and the function. On the one hand, they are too expensive to build, too little elastic in use, too energy-consuming, and @ imißetrieb too complicated.

The subject matter resolves in progressive, novel and in astonishingly simple way the problem, in a cost-saving way, in the simplest possible way creating, operationally safe, energy-saving plant, sewage treatment plants and operate.

The subject of the invention is essentially in the accompanying drawing systematically presented. The figures show: FIG. 1 a vertical section. FIG. 2 a Top view Fig .: 3 a detail for the air supply element Fig .: 4 a detail for the air outlet opening Fig.t 5 a detail section through Nandwickeleiement Fig .: 6 a wall detail for a variant of the wall production.

The task at hand is solved as follows: A funnel pit is created excavated, the cone shell (1) in one direction (towards the drain) by a flat pitch area (2) is expanded. The pit is surrounded by a berm path t), than went over to money (4). The funnel tip is widened to a mud shaft (5) from precast concrete parts, which at Grubenb; serve to drain water; the shaft bottom (6) is tight, but contains a buoyancy relief valve (7).

The shaft (5) is also the foundation for the supports (8) of the service bridge (9,10), which is preferably from outside the Pit at the other End of pile foundation (25).

The walls of the pit are fixed, preferably with a bitumen-sand-gravel mixture, whereby in the tip area (11) the fixation is to be chosen stronger than in the pitch area (12). Sheets made of plastic can also be used for the lining.

The sludge suction pipe (13) is arranged concentrically in the cone axis for this purpose a tulip body (14) is built in, adjustable in height by sliding it, to control the dynamic effect of the stimulation energy with regard to the dynamic sludge recirculation.

A concentric bell (15 - closed up; or 16 - after open at the top) encloses the activation space and carries the air supply elements (24), which can pierce the bell wall from the outside to the inside when the bell is closed Execution). The rest of the space is subdivided by a dome (20, 21) that is open at the bottom. in the pre-clarification room and the post-clarification room, which itself has a cover (22). The sown outer surfaces are made of specially shaped (36,37,38) profile coupling tubes made of materials such as PVC or PE wrapped in rings or spirals, or even made of deformable platinum (39) made of suitable plastic or aluminum, which is glued (40) or screwed (41).

The ventilation units can be installed on the covered access platform (9, 10) (23), preferably air demand - can be controlled or controlled depending on the requirements. The drainage device is a Rchr (26), the diving rings (27,28,29) are rewritten hanging.

The cleaning process begins at the inlet pipe (19). The clarification room will ringwoise operated by both the inflowing wastewater through a guide wall (17) is performed as well as the water arriving in the ring closure gives space again.

Openings (18) in the bell, preferably behind the guide wall (17) establish the electrical connection to the activation room.

Concentrate in the central space under the bell (15,16) and the dome (20,21) the settling substances from the primary clarification room, the secondary clarifier and the activated sludge tank, whereby the corresponding position of the tulip body (14) the essential pollutants are fed into the aeration room in a dynamic way will. Pumps in pipes or freely suspended can still promote this supply.

The air supply elements (24) are hoses (31) in protective tubes (30) can be performed and which have a ball-shaped structure (32) as an introduction closure obtain.

Through openings (33) which are preferably funnel-shaped or trapezoidal (Conical: 34S35) penetrate the ball (32) wall, air is introduced in fine bubbles.

Claims (14)

Claims 1. Sewage treatment plant with a basin in which by concentrically arranged Walls an activation room, a primary clarification room and a secondary clarification room are formed thereby characterized in that the activation space is penetrated by a sludge suction pipe (13) which opens down into a sludge shaft (5) provided at the bottom of the basin. 2. Sewage treatment plant according to claim 1, characterized in that in the the lower area of the activation chamber a sludge suction pipe (13) enclosing sliding height-adjustable tulip body (14) is arranged. 3. Sewage treatment plant according to one of the preceding claims, characterized in that that the wall between the activation room and the primary clarification room has the shape of a having open at the bottom, open at the top or closed bell (15, 16). 4. Sewage treatment plant according to one of the preceding claims, characterized in that that in the activation room at least one controlled according to the air requirement Air supply element (24) opens. 5. Sewage treatment plant according to one of the preceding claims, characterized in that that the wall between the primary clarifier and the secondary clarifier has the shape of a downwards has open dome (20, 21). 6. Sewage treatment plant according to claim 5, characterized in that the dome (20, 21) carries a cover (22). 7. Sewage treatment plant according to one of the preceding claims, characterized in that that on the outside next to the separating the activation room from the primary clarification room Wall (15, 16) in the circumferential direction of this wall (15, 16) a sewage inlet pipe (19) tastes. 8. Sewage treatment plant according to claim 7, characterized in that in the outflow direction At the rear of the mouth of the sewage inlet pipe (19), a flow control wall (17) is arranged is. 9. Sewage treatment plant according to claim 7 or 8, characterized in that in the outflow direction on the back of the mouth of the sewage inlet pipe (19) in the wall (15, 16) openings (18) are provided. 10. Sewage treatment plant according to claim 9, characterized in that the openings (18) lie in front of the Sromlcitwand (17) in the direction of flow. 11. Sewage treatment plant according to one of claims 4 to 10, characterized in that that the air supply element (24) is a hose guided in a protective tube (30) (31) is provided. 12. Sewage treatment plant according to one of claims 4 to 10 and 11, characterized in that that the air supply element (24) is ball-shaped, with air outlet openings (33) provided insertion termination (32). 13. Sewage treatment plant according to claim 12, characterized in that in the Wall of the insertion end (32) funnel-shaped or trapezoidal openings (33) are provided, the largest cross section (35) is on the outside. 14. Sewage treatment plant according to one of claims 7 to 13, characterized in that that the sewage inlet pipe (19) limited in one by the walls (15, 16, 20, 21) Wedge space opens.