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Nitrification of high salinity chemical effluents The problem While during the biotreatment of non inhibitory chemical effluents containing 30 to 60 g/L salt the main part of organic pollutants (TOC, COD) do become degraded, is the nitrification of the present NH4N by suspended biomass because of high osmotic pressure in the reactor not possible. The solution Lab scale tests have shown, that nitrification of these high saline effluents become possible by immobilising the nitrifying biomass. Nitrification of 55 g/L salt containing chemical effluents with suspended (days 1 to 10) and with immobilised nitrifying organisms (days 11 to 40) During the nitrification with suspended organisms the process crashed within one day because of the high osmotic pressure, respectively the resulting cell disrupture, indicated by increased concentrations of ammoniacal nitrogene and reduced dry solids.. After a new start in the presence of 12 vol.% LEVAPOR (day 12) nitrification has been established within 10 days, remaining stable also after a stepwise increased N-loading rate.
Nitrification of 55 g/L salt containing chemical effluents with suspended (days 1 to 10) and with immobilised nitrifying organisms (days 11 to 40)
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WHAT IS LEVAPOR? LEVAPOR - TYPES and PROPERTIES LEVAPOR-C adsorbing, porous carrier material for special microorganisms LEVAPOR-F for anaerobic reactors LEVAPOR - TYPES and PROPERTIES The LEVAPOR-Story OPERATIONAL AREAS LEVAPOR in OFF - GAS TREATMENT in BIO-TRICKLING FILTERS Biotreatment of off-gases from a waste water buffer Biotreatment of off-gases from a storage of plastic wastes Biotreatment of off-gases from a building for sludge presses Biotreatment of off gases containing styrene LEVAPOR IN WASTE WATER TREATMENT LEVAPOR in COD-elimination Treatment of toxic pulp mill effluents Treatment of chemical effluents Treatment of agrochemical effluents LEVAPOR in AOX-degradation LEVAPOR in nitrification Nitrification of municipal effluents Nitrifikation of complex industrial effluents Nitrification of inhibitory chemical effluents Nitrification of high salinity chemical effluents LEVAPOR in municipal effluent treatment Nitrification of municipal effluents LEVAPOR in small waste water treatment plants LEVAPOR in OFF - GAS TREATMENT in BIO-TRICKLING FILTERS Biotreatment of off-gases from a waste water buffer Biotreatment of off-gases from a storage of plastic wastes Biotreatment of off-gases from a building for sludge presses Biotreatment of off gases containing styrene BIOREACTORS for effluent treatment using LEVAPOR-carrier Biofilters Fluidised bed reactors NEWS IMPRINT LINKS CUSTOMER