DE19527060A1 - Water treatment system - Google Patents

Abstract

The filtration system for treating liquids by capillary rise and gravity forces, has a clarifying filter insert which treats liquid and feeds it to troughs, which discharge to settling tank via channel and outlet. A high pressure nozzle and pump are used for back-flushing, the pump descending to a low level to pump away the contaminated flushing water from the nozzle.

Description

Application example

The invention relates to a clarification according to which the capillary ascension forces the liquid cleans and runs into a deeper nirvan.

Possible areas of application are water management, commercial and industrial Areas.

Known filter types are:

• - gravel bed filter
• - drum filter

In the known clarifying filter device P 19517435.6, the filtration is solved well, but the Backwashing is prolonged which means high pumping capacities and additional ones The result is turbulence. Furthermore, when overflowing to the clarifying filter; unstable Flakes destroyed.

The invention is therefore based on the object of the device improve that the pumping power is significantly reduced when backwashing and a gentle Flake filtration is given.

This object is achieved according to the invention in that not the total amount of water must be pumped into which the clarifying filter insert is attached.

The associated invention will be explained in more detail below using an exemplary embodiment will.

Fig. 1 shows a section of a circular clarifier with scraper bridge.

The filter housing 1, which is fastened all around in the round settling tank, contains the clarifying filter insert 2, which consists of a channel tube structure. In filter mode, the WS (a) that is also present in the clarifier lies in the tubes that are open at the top and bottom. The filter material cleans and conveys the water WS (a) in the channels WS (b), which are interrupted on both sides and continuously drain through the channel 4 to the clarifier 5 .

The high-pressure nozzle 6 and the pump 7 are attached to the all-round scraper bridge 8 and are activated when the backwashing is required. Here, the tightly sliding pump 7 lowers the WS (a) to the WS (c) and compensates for the internal leakage loss of the sliding device 9 , which can be adjusted via the valve 10 . The channel 4 and the overflow 11 are located at each point of interruption of the clarification filter insert and can also intercept the water level distortion of the round settling tank in strong winds, for example.

Reference list

1 clarifier housing
2 clarifying filter insert
3 filter material
4 channel
5 process
6 high pressure nozzle
7 pump
8 clearing bridge
9 sliding device
10 valve
11 overflow

Claims (3)

1. Device for the treatment of liquids by the Kapillaraszens- and gravitational forces, characterized in that the deeper collecting channel of the filtrate is attached side by side to the clarifying filter insert so that the liquid present in the clarifying filter insert and that rinsed water is pumped out through the nozzle by a tightly sliding suction device , with which the unrestricted inflow guarantees optimal filtration. 2. Device for the treatment of liquids according to claim 1, characterized in that that an overflow fitted for overloading is attached to the sewer connection. 3. Device for the treatment of liquids according to claim 2, characterized in that that resulting, extracted air-water mixture is adjustable via a valve.