Over the past few decades, more and more stringent standards are being enforced for the industries generating effluents with high organic and inorganic nitrogen. Biochemical nitrification of industrial wastewater is a two step process involving two different types of micro organisms. These microorgnisms have low cell yield and poor flocculating properties. Moreover, these micro organisms are sensitive to environmental conditions within the reactor e.g. pH, salinity, presence of toxic and inhibitory substances and COD:N ratios. Due to complex nature of industrial effluents, achieving stable nitrification is often a challenge due to frequent wash outs and inhibition effects of the wastewater matrix itself. Application of Levapor Technology allows for retention of very high amount of nitrification biomass within the biological reactor. Carbon impregnation and inner porosity of Levapor carriers also provides protection against toxic shock loads, changing hydraulic and organic loading conditions under a wide range of physico chemical properties specific to industrial effluents.
Factors affecting nitrification of industrial wastewater:
Problems associated with nitrification of industrial wastewater:
- Biomass washout due to poor flocculation
- Lower degree of nitrification due to disturbed process
- Complete inhibition due to qualitative and quantitative fluctuations of pollutants, changing pH and temperature
Levapor Carriers: An Ideal Solution For Industrial Nitrification
Due to its very high adsorbing capacity because of activated carbon and higher inner porosity along with fine pore structure, Levapor carriers offer distinct advantages over conventional suspended growth based technologies for nitrification of industrial effluents.
Benefits Of Levapor Supported Nitrification Process
- Faster colonization and retention of highly active nitrifying biomass
- Higher nitrification kinetics and removal rates
- Higher resistance against toxic and inhibitory substances due to activated carbon
- Faster biodegradation of inhibitory pollutants resulting in their reduced toxicity on nitrification
- Highly stable nitrification process over a wide range of pH, salinity, temperature, COD:N ratio
As shown in the graph above, by immobilizing biomass on Levapor carriers resulted in reduced negative effect of toxic substances and salinity. Due to combined impact of reduced inhibitory effect and higher amount of active biomass present on Levapor carriers, the removal rates and process stability increased remarkably for Levapor carriers based reactors compared to suspended growth only reactor.
For an agro chemical manufacturers, despite having active pesticides and toxic substances, high salinity and higher TKN levels in their effluent, Levapor supported nitrification process achieved lowest possible Ammonia (NH4.N < 5 ppm) in the treated effluent.
Our expert team of professionals comprising chair person of German DWA Industrial Nutrient removal committee can help your organization to develop efficient , economical and stable nitrification process which delivers results for your specific effluents. To know more, get in touch with our team.