Biofiltration uses shellfish byproduct for odour control
The MónaShell Biofiltration System from Ireland-based Bord na Móna is a unique patented technology which allows for the biological treatment of airstreams with high concentrations of reduced sulphur compounds. Traditionally, biotrickling filters have been similar to chemical scrubbers in that they employ randomly packed plastic packing. As with biofilters, pH control becomes a limiting factor in airstream treatment due to acidic byproducts of odour oxidation. Bord na Móna’s MónaShell enhanced biotrickling filter uses shells (a byproduct from the shellfish processing industry) in place of plastic media. Shells slowly release calcareous compounds, which neutralize acidic sulphur compounds. The result is effective pH control and sustained odour oxidation. MónaShell achieves up to 99 percent removal of odours, H2S, organic sulphides, and VOCs. Although the shell media is eventually consumed, with the exception of very high concentration regimes, life spans are similar to conventional filter media.
Applications for this product include municipal solid waste treatment and storage facilities, composting facilities, wastewater pumping stations and inlet works, sludge handling and treatment processes, animal by-products processes, and industrial effluent treatment and process emissions.
Crushed peat can also be used as the filter media, and the technology features offsite or onsite modular construction for ease of installation. Additionally, Mó-naShell features low running costs, a lower footprint than a conventional biofilter, low maintenance, and very high performance on a broad range of compounds.
Applications for this product include municipal solid waste treatment and storage facilities, composting facilities, wastewater pumping stations and inlet works, sludge handling and treatment processes, animal by-products processes, and industrial effluent treatment and process emissions.
Crushed peat can also be used as the filter media, and the technology features offsite or onsite modular construction for ease of installation. Additionally, Mó-naShell features low running costs, a lower footprint than a conventional biofilter, low maintenance, and very high performance on a broad range of compounds.