Anti – Odour & VOCs Environmental Protection with The Bio-Trickling Filter Technology Daega Powder Systems CO., LTD CHEON-AN

Organisation Customer Customer KT & G KT & G Supplier Korean Companies Doosan Daega Pulverizing Machinery German Partners EDT AG ARNDT CPS IIANRDT

Biotrickling Technology Developped since 1991to combine the advantages of biofilter and bioscrubber Developped since 1991to combine the advantages of biofilter and bioscrubber Using an inert carrier Using an inert carrier Low energy consumption Low energy consumption Less maintenance costs Less maintenance costs Control of biomass and biological layer Control of biomass and biological layer Special nutrients for odour and vov elimination Special nutrients for odour and vov elimination Control of mass transfer Control of mass transfer

Applications of Biotrickling Technology Odour Removal Odour Removal Tobacco industry Tobacco industry Slaughterhouse Slaughterhouse Waste water treatment Waste water treatment Composting plant Composting plant Chocolate production Chocolate production VOC Removal Printing industry Cosmetic industry Coating industry Chemical industry Semiconducting industry

Processes and Kinetics Influences on kinetics and efficiency Influences on kinetics and efficiency Mass transfer Mass transfer Residence time Residence time Soluability in water Soluability in water Temperature Temperature Biological degradation Biological degradation Type of microorganism Type of microorganism

Pictures of microrganisms

Influence of Media Important characters of Biotrickling media Important characters of Biotrickling media Surface area Surface area Water storage capacity Water storage capacity Pore size Pore size Pressure drop Pressure drop Stability/physical data Stability/physical data Endless lifetime Endless lifetime Chemical and biological resistance Chemical and biological resistance

Temperature Influence Temperature has an important influence on the elimination rate Temperature has an important influence on the elimination rate best efficiency between 28 ˚C and 35 ˚C best efficiency between 28 ˚C and 35 ˚C Mesophilic bacterias Mesophilic bacterias Slow reaction/low influence on temperature changes over a short time Slow reaction/low influence on temperature changes over a short time

Influence of Humidity Humidity has an important influence on the efficiency Humidity has an important influence on the efficiency Clogging can appear by uncontrolled humidity Clogging can appear by uncontrolled humidity Kinetics can be influenced by humidity Kinetics can be influenced by humidity

Influence of Nutrients Special Nutrients for different applications Special Nutrients for different applications C:N:P:S ratio important C:N:P:S ratio important Influence of ammonia elimination and growth of biomass Influence of ammonia elimination and growth of biomass Control mechanism to avoid clogging Control mechanism to avoid clogging

Influence of Variations in Concentration Concentration influences the kinetics of the reaction Concentration influences the kinetics of the reaction Limitation in elimination possible Limitation in elimination possible Most applications are working with a kinetics of 0 or 1 order Most applications are working with a kinetics of 0 or 1 order

Reemtsma Flow Diagram

Flow Diagram - KT&G Project

Main Equipment Scrubber Scrubber High efficiency in dust separation High efficiency in dust separation Inert Media Inert Media Polyurethane foam with high surface area and physical, and chemical stability Polyurethane foam with high surface area and physical, and chemical stability Biotrickling reactor Biotrickling reactor Anti corrosive material Anti corrosive material Measuring and control system Automatically controlled Cooling equipment Guarantee a temperature lower 45 ˚C Nutrient Station pH controlled

Materials Reactor Reactor Stainless steel Stainless steel Coated steel Coated steel Plastic fibre grid Plastic fibre grid Inert Carrier Inert Carrier Polyurethane Foam Polyurethane Foam Scrubber Scrubber Plastic fibre Plastic fibre Polyethylene Polyethylene Dosage tanks Polypropylene Polyethylene Ductwork Stainless steel Polyethylene Polypropylene PVC PTFE hoses

Dust Separation Due to the character of the filter media it is important to avoid dust on the surface of the polyurethane foam Due to the character of the filter media it is important to avoid dust on the surface of the polyurethane foam Character of the scrubber Character of the scrubber High efficiency High efficiency Tangential feed construction Tangential feed construction Controllable quantity of water Controllable quantity of water Capable of temperature reduction Capable of temperature reduction High water separation High water separation

Waste Water Low COD/BOD Low COD/BOD In Germany acceptable for our Government In Germany acceptable for our Government pH- controlled in a range of 5,5 to 7,5 pH- controlled in a range of 5,5 to 7,5 Less particles and slurry Less particles and slurry In Germany also acceptable In Germany also acceptable Low discharge quantity Low discharge quantity Advantage of biological cycle of nutrient Advantage of biological cycle of nutrient

Installation Phases of a Biotrickling Plant – Deinstallation of Biofilter

Installation Phases of a Biotrickling Plant – Installation of Reactors

Installation Phases of a Biotrickling Plant – Filling with Media layer 2

Installation Phases of a Biotrickling Plant – Installation of sprinkling system/ Airinlet

Installation Phases of a Biotrickling Plant – Separation of special particles/Cooling unit

Installation Phases of a Biotrickling Plant – Water and nutrient station

Installation Phases of a Biotrickling Plant – Connecting Ductwork

Installation Phases of a Biotrickling Plant – Final Situation

Investment Costs Comparison of different Technologies based on German Prices 2002

Maintenance Cost Comparison of different technologies