Anaerobic -aerobic treatment of toxic agrochemical effluents from the by microorganisms immobilised on adsorbing carrier
1. The problem
Effluents with remarkably salinity, polluted with biologically active agrochemicals ans solvents (methanol, aromates, dichlormethane, methyl-isobutyl-ketone, etc.).
COD ~ 5,0 to 10,0 g/L, TKN ~ 0,3 g/L to 1,0 g/L NaCl ~ 10 to 28 g/L (remarkably fluctuating) Up to 1,0 g/L of COD-components are inhibiting active substances.
2. The solution
Lab scale tests pointed to feasibility of anaerobic-aerobic treatment with biomass, immobilised on LEVAPOR carrier, results of pilot scale tests served as basis for design of a technical scale plant.
COD-elimination ~ 88-93%
Nitrification ~ > 99 %