FILTRATION TYPE

As a result of the activities of anaerobic bacteria in the manhole, gases such as H2S and CFL released accumulate in the chimney over time and cause pressure increase. As a result, a gas flow occurs through the manhole, where the
pressure is high, into the atmosphere where the pressure is lower. H2S, an acidic gas, causes both a very unpleasant odor and is very harmful to health.

If TASOTFİLT manhole filter is placed on the manhole, it continues without obstructing the gas from the manhole. However, the special active carbon components contained in the filter contain all of the disturbing H2S components
present in the exhaust gas. It is also retained by the filter component in a portion of the CFL component which is nonodorous but which may be hazardous to health.

The most important feature of activated carbon is its incredibly large surface area due to its very complex internal structure. This complex internal structure makes it possible for the activated carbon to retain other components.
The active carbon used in TASOTFİLT manhole chimney air treatment systems has a surface area of 1000 grams and a mass of 1 gr.

Objects larger than 20 microns cannot pass through the filter structure. In this way, the ways in which the insects living and breeding in the sewerage go out of the sewerage are prevented. This situation makes the pesticides to be
applied to the sewers more effective, but the higher efficiency is obtained from the spraying activities

CLEANING THE FILTER

The filter does not interfere with rainwater flow. Rain water can pass through the filter. Rain water does not damage the filter. However, components such as sand and leaves that come with rainwater can clog the filter grids.If the filters
are checked periodically and accumulations that cause clogging are observed, they may need to be cleaned by washing with water.

FILTER ASSEMBLY AND DISASSEMBLY

Filters are very easy to remove and assemble. The filter body is designed to fit into standard manhole manholes. There is a sponge gasket around the filter body. This sponge covers the gap between the manhole and the filter during installation. Then, the polyurethane foam supplied with the filter is applied on the sponge to provide sealing between the filter body and the manhole. Installation is completed in less than 10 minutes.

When the manhole must be inspected, the TASOTFİLT manhole filter can be removed by applying a very small force. After the maintenance process on the manhole, the filter unit is simply put back into place and polyurethane foam is applied around it and its usage is continued without any problem.