FI122412B - Chemical-mechanical purification device for leachate water - Google Patents

Description

CHEMICAL-MECHANICAL CLEANER FOR WATERWATER

The present invention relates to a wastewater purification device according to the preamble of claim 1.

5

Known devices require a long run-off of runoff water and a large tank size for purification. During run-offs, the devices are required to have a quick throughflow, which reduces their cleaning performance.

An object of the invention is to remove runoff solids during continuous flow-through.

This object, according to the invention, can be achieved by subjecting the running water to a rotating, slowing, downward and upward movement which causes the solid to separate from the running water, due to its slowing down motion, centrifugal, gravity and anti-settling chemical.

More specifically, the chemical mechanical purification device for runoff water according to the invention is characterized in what is stated in the characterizing part of the patent claim.

Figure 1 shows a schematic diagram of a chemical-mechanical purification system for run-off waters. Ko. the device consists of containers of different sizes 1. The diameter and height of the containers 1 increase as you move forward. The diameter of the first container 1 in the exemplary case is 60 cm, the middle 90 cm and the last 120 cm.

5 The height of the first container 1 in the example case is 73 cm, the middle one 108 cm and the last one 143 cm.

The containers 1 and their parts can be made, for example, of PVC plastic. The joints of the parts can be made by the hot soldering method. The tanks 1 are connected by an overflow-10 pipe 2, e.g. 9 cm in diameter, by means of which the water is brought upwardly.

The overflow tube 2 is guided inside the container 1 in a wall direction and is directed downwardly at an angle of about 45 degrees from the horizontal by the curve guide tube 3.

From the top of the last container 1, an overflow conduit 2 leaves. 4x4 mm. In the mesh wall container 4 is placed a chemical that enhances sedimentation.

In accordance with the inventive idea, the running water enters the tank 1 where it is brought into a rotating, downward motion by a curved guide tube 3 25 The rotating movement of the running water separates heavier fractions on the outer periphery of the tank 1 for a slower flow. Due to the slower speed, downward movement of 2 and the chemical to enhance sedimentation, the heavier solids particles 30 remain at the bottom of the container 1. The runoff water, containing lighter particles, rises to the next by means of an overflow pipe 2. to a container of larger diameter and height 1. As a result of the upward movement, the separation of particles is enhanced by gravity. The process described above is repeated, in addition to which the flow rate of the runoff water 35 continues to slow due to the larger and larger tank 1.

At the same time, prolonged runoff delay increases sedimentation and solids separation increases.

The purification of run-off water can be enhanced by increasing the size of the tanks 1 by 40. Finally, the purified runoff water is removed from the last container 1 just below the water level of the previous container 1. By means of the sediment level 5, the solids separated from the runoff water are removed by lifting the rod 7.

Claims (4)

3 A chemical-mechanical purification device for run-off waters, comprising: 5. containers (1) of various sizes, the diameter and height of which increase with the passage of time, - a mesh chemical assembly (4), a lid (6) of a container (1), ) connecting the overflow pipe (2), - the sediment plane (5) at the bottom of the tank (1) and the lifting rod (7) attached thereto, characterized in that the curved guide tube (3) is fixed inside the upper part of each tank (1); which is directed downwardly at an angle of about 45 degrees for moving the running water into a downward movement, and which is directed towards the inner wall of the tank (1) to make the running water rotatable. 2. A chemical-mechanical purification device for runoff water according to claim 1, characterized in that the diameter and height of the tanks (1) increase as they go forward, by which the runoff water can be brought into slow motion. A chemical-mechanical purifying device according to claim 1, characterized in that an overflow pipe (2) is attached to the upper part of each tank (1), by means of which the running water can be brought upwardly and extended by a curved guide pipe (3). A chemical-mechanical cleaning device for run-off waters according to claim 1, characterized in that a chemical connection (4) is provided, e.g. 4