Evogen Sulphide Controller has been specially formulated to tackle odours and issues associated with reduced sulphur compounds (rotten egg smell) within oxygen depleted zones.
The product is a liquid that features a sodium nitrate base combined with different Bacillus species with a diverse metabolic capability.
How it works
Evogen Sulphide Controller uses both a chemical component and a biological component to deliver a multi-pronged challenge to the most common cause of reduced sulphur compounds – sulfate reducing bacteria (SRB).
The delivery of sodium nitrate into zones favouring sulphate reduction offers the resident microbes a better, higher energy electron acceptor. This means the bacteria can gain more from their food using nitrate rather than sulphate. This decreases sulphate reduction because instead of ‘breathing’ sulphate the microbes instead breathe nitrate, and thus, instead of expelling reduced sulphur compounds the bacteria produce nitrogen via denitrification.
The biological component contains a blend of Bacillus strains that have been selected through both laboratory and genomic methods to outcompete and disrupt the growth of sulphate reducing bacteria (SRB). The diverse metabolic capability of the Bacillus combined with a wide range of extracellular enzymes ensure that potential fuel for SRB is strongly competed for. Furthermore, a broad range of antimicrobial secondary metabolites expressed by the Bacillus help suppress the growth of SRB. In turn, this could prevent corrosion, particularly with regards to biofilms formed upon steel and metal surfaces, where dosing of the Bacillus consortia within Evogen Sulphide Controller has been shown to lower biofilm coverage and interfere with biofilm-based sulphate reduction.
In addition to helping to combat reduced sulphur odours, the product will also help with improving effluent parameters by contributing to BOD/COD removal as well as impacting a range of other potential odour compounds such as volatile fatty acids like propionic and valeric acid.
