Sewerage: Little water, lots of smell

Low rainfall and summer heat cause the sewers to smell. But municipalities can take countermeasures.

The unpleasant smell coming out of the sewers on many days is due to bacteria that decompose organic components in wastewater. They produce fission products such as hydrogen sulphide and ammonia — the typical sewage smell.

Even in the medium term, there is little chance that the canals will carry more water again. On the contrary, everything points to an increase in drought in the network. This also leads to secondary damage due to microbacterially induced corrosion (MIC). So what should be done to preserve the substance, appease local residents and not scare off visitors?

Some cities have already had good experiences with filter systems. This approach is comparatively inexpensive, can be implemented quickly and can be expanded flexibly. Solutions to this problem were recently presented at IFAT. Including at the stand of COALSI, a brand of Fritzmeier Umwelttechnik GmbH & Co. KG from Großhelfendorf, Bavaria. The manufacturer combines three filter technologies into one effective unit.

The bio-power stage stands out: Microorganisms metabolize the odor-causing agents, leaving virtually “pure” air. The filters are safe, maintenance-free and last a long time. They are not only available as a replacement insert for sewer shafts and road drains, but also as an attachment or attachment for pipes and pipes, sometimes with a legally secure bait box against rats. For emissions from sewage treatment plants, the manufacturer supplies large appliances with active extraction.

Decision-makers can find out live at KommTec from October 12 to 13 in Offenburg. There, the exhibitor will also show how to work with”Aquastop“faces the opposite situation - namely when too much water penetrates the shafts after the drought.

Further information can be found at COALSI solutions for odour problems.

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