Lava-rock.com has recently won the contract to supply 86m3 of Lava Rock Odour Control for an Wastewater Treatment Works in Sussex.
Lava Rock is chemically inert and is not affected by either acids (except hydrofluoric acid) or alkali. Lava Rock is strong enough physically to be used in biofilters with a bed depth of up to three metres. A typical empty bed contact time (EBCT) would be 30-35 seconds although some plants that are seeded using specific bacteria use a much lower EBCT.

Typical installations using lava rock will remove about 95-98% of H2S and mercaptans found in sewage works gases. It is important to develop and maintain a good level of biomass by providing a constant level of H2S if possible, so that good performance will be maintained during periods of very low concentrations or during times when very high concentrations are expected, for example sludge imports.

For more information or to speak to a member of our Technical Team, please click on the following link: Contact Us