Filter unit for wastewater treatment and production of drinking water

Abstract

A filter unit for sewage treatment and drinking water provision and components which are suitable for the production and the use of such filter units are described. The filter unit has at least one ceramic filter(3) and at least one holder for liquid-tight fixing of the filter in the holder(2), the filter being fixed in the holder by adhesive bonding with the aid of an adhesive. At the same time, the holder is adjusted to the design of the filter, especially to its design as a flat filter. A separate filtrate collecting channel (21)and a holding device (18)for the filter units or other components allow the provision of a finished filter system which is also suitable for retrofitting of already existing plants.

Description

technical field [0001] The invention relates to a filter unit for waste water treatment and drinking water production and to components suitable for the manufacture and use of such a filter unit. Background technique [0002] Typically, a conventional wastewater treatment plant includes a settling tank, an activated sludge tank, and a secondary clarification tank in which coarse components are removed from wastewater in a first step. In activated sludge tanks, microorganisms are used to break down fecal matter or other organic matter contained in wastewater. In the secondary clarification tank, these microorganisms are usually separated again from the waste water by sedimentation after the activated sludge tank and, if appropriate, recycled at least partially into the activated sludge tank. In this case, however, a complete separation of the microorganisms is usually not possible, in particular by means of a sedimentation process, and thus entails the risk that the microorg...

AI Technical Summary

Problems solved by technology

[0004] The requirement that only biologically clarified wastewater that is substantially free of microorganisms be discharged into the environment poses problems in particular in that the resulting wastewater is not or cannot be fed in Public Wastewater Network

Furthermore, there is the problem here that the filter systems of existing plants that are still in operation should and must be retrofitted, for example by depositing microorganisms during secondary clarification run in a manner

Thus making it impossible to replace damaged filter plates / membranes in a simple manner

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