• Stop the Rot! Reduce Toxic Odours to Safe Levels

Health & Safety

Stop the Rot! Reduce Toxic Odours to Safe Levels

Jul 12 2017

The UK’s sewer system delivers millions of litres of water each day to homes and businesses and removes wastewater to process at treatment plants.

Wastewater contains grease, food wastes plus ordinary sewage. Rapidly decaying wastes plus ordinary sewage coupled with low flow, contributes to an environment for heavy production of liquid sulphides and the perfect recipe for the release of extremely high levels of Hydrogen Sulphide (H2S).

The result will cause significant odour complaints to neighbouring populations because of its notorious strong egg-like odour that it produces but also corrosive damage and decay to the sewer structure, manholes and grids.

To determine the extent of the potential problems, baseline measurements are required to be taken within the sewer. This can be done by using the OdaLog L2 H2S datalogger which has been specifically designed for use in these rancid wastewater applications.

Following the initial tests, a controlled chemical dosing system can be setup to deliver chemicals directly into the sewer to control levels of H2S. The OdaLog L2 dataloggers using a long life sensor remain in place for up to a month, regularly recording the H2S data readings to accurately calculate how much chemical is required for the dosing process.

As H2S levels reduce, chemical dosing is reduced too to effectively save costs. As H2S levels reach levels of less than 10ppm, odour complaints will be eliminated and corrosive damage is limited.

The OdaLog®

The OdaLog® is designed to be corrosion-resistant, robust and able to log data for extended periods of time.

With intrinsically safe, wireless data logging, low range detection and multi-gas monitoring options, there is an Odalog® solution to meet any Hydrogen Sulphide monitoring needs.

The OdaLog is available from a1-cbiss, the UK and Ire master distributor. Please click here for further information.


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IET 33.5 Sept/Oct 2023

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