Sand map of treatment plant

Effects of hydrogen sulphide

1. Odour problems
  - Sensitisation of population, > 0.1 ppm H₂S of wastewater channels

2. Sulphuric acid corrosion
  - Concrete removing rate up to 10 mm per year
  - High investment costs to repair

3. Health risk
  - Toxicity is comparable to cyanide

4. Reducing of biological stage of sewage plants
  - Increasing of bulking sludge within aeration tanks of waste water treatment plants

Toxicity

A solution must be found, how the danger can be permanently prevented!