Saving precipitants and avoiding methane emissions – Article in wwt Praxismagazin

Article in the wwt practical Praxismagazin for drinking and wastewater management issue 10/22 about the scarcity of chemicals for water purification and the bottlenecks in precipitants and a permanent solution for sewage treatment plants to avoid this pro

Water purification chemicals are becoming scarce

Dramatically increased energy prices have meant that the costs to produce precipitating agents such as hydrochloric acid have increased tenfold. As a result, the purchase prices for hydrochloric acid have increased significantly and, in some cases, it has become uneconomical for producers so therefore no longer available.

What are the effects of the shortage of chemicals for sewage treatment plants?

Iron salts are used for P-elimination in wastewater and for sludge conditioning. If these are insufficiently available, there will be dramatic consequences for the environment, especially if this means that limit values can no longer be met. The press reports that politicians are already working on raising the limit values for wastewater. The risk of dead zones in rivers therefore increases significantly (Der Spiegel, September 8, 2022).

Specialist article in the wwt practical magazine for drinking and wastewater management

Find out more about the challenges of the shortage of precipitating agents and the effects on biological and P-elimination in our specialist article in the October issue of wwt - practical magazine for drinking and wastewater management. The article also shows a permanent alternative to conventional methods that saves precipitants and reduces the environmentally harmful methane in sewage treatment plants.

Read the full article



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