Ballast Water Management Systems
The Envirocleanse inTankTM BWTS utilizes salt water and Electrochemical Activation (ECA) to generate Sodium Hypochlorite (NaOCl) as the active substance to achieve ballast water discharge standards. The circulation module mixes one tank at a time where ballast water quality is assessed and the generated disinfectant is applied until the target Total Residual Oxidant (TRO) level is reached. The Envirocleanse inTankTM BWTS is effective in all water types including fresh, brackish, and marine water.
The circulated ballast water is returned through the patented in-tank nozzle mixing system that ensures even chemical distribution (see figure below). After an initial hold time, the circulation module rechecks the TRO in each tank, applying more NaOCl if required. This is repeated for all ballast tanks that require treatment. Prior to discharge, the circulation module checks the remaining TRO in the ballast tanks and applies Sodium Thiosulfate to neutralize any remaining active substance.
The inTankTM BWTS does not filter the ballast water on uptake, which is different than most in-line systems. To ensure consistent and effective kill of target organisms and pathogens, the Concentration-Time (CT) treatment approach is utilized. The recirculation capacity enables monitoring and re-dosing to meet the target combination of oxidant dose and hold time. The ability to dose in-tank and re-dose ensures effective treatment regardless of organic and inorganic loads in the ballast water.