Compost and Biogas Managers Survey on Efficiencies of Technologies to Remove Contamination Question Title * 1. What Country are you from? Question Title * 2. What techniques / technology do you use in your plant(s) use to remove contamination from unprocessed feedstocks? Packaged / unpacked food Biowaste (food & garden waste) Hand Picking Contamination by People on Unprocessed Feedstock Hand Picking Contamination by People on Unprocessed Feedstock Packaged / unpacked food Hand Picking Contamination by People on Unprocessed Feedstock Biowaste (food & garden waste) Magnet Magnet Packaged / unpacked food Magnet Biowaste (food & garden waste) Trommel Screen Trommel Screen Packaged / unpacked food Trommel Screen Biowaste (food & garden waste) Wind Sifter Wind Sifter Packaged / unpacked food Wind Sifter Biowaste (food & garden waste) Ballistic Separator Ballistic Separator Packaged / unpacked food Ballistic Separator Biowaste (food & garden waste) Paddle Depacker Paddle Depacker Packaged / unpacked food Paddle Depacker Biowaste (food & garden waste) Separator to Remove Plastic Separator to Remove Plastic Packaged / unpacked food Separator to Remove Plastic Biowaste (food & garden waste) Hammermills – physical contaminants on size – plastics and others Hammermills – physical contaminants on size – plastics and others Packaged / unpacked food Hammermills – physical contaminants on size – plastics and others Biowaste (food & garden waste) Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones Packaged / unpacked food Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones Biowaste (food & garden waste) Other (please specify) Question Title * 3. Unprocessed Feedstock at Compost Plants:Based on your experience, what is the approximate level of efficiency of the technologies below in removing plastic contamination? <60% <70% <80% <90% <95% <97.5% <99% Hand Picking Contamination by People on Unprocessed Feedstock Hand Picking Contamination by People on Unprocessed Feedstock <60% Hand Picking Contamination by People on Unprocessed Feedstock <70% Hand Picking Contamination by People on Unprocessed Feedstock <80% Hand Picking Contamination by People on Unprocessed Feedstock <90% Hand Picking Contamination by People on Unprocessed Feedstock <95% Hand Picking Contamination by People on Unprocessed Feedstock <97.5% Hand Picking Contamination by People on Unprocessed Feedstock <99% Magnet Magnet <60% Magnet <70% Magnet <80% Magnet <90% Magnet <95% Magnet <97.5% Magnet <99% Trommel Screen Trommel Screen <60% Trommel Screen <70% Trommel Screen <80% Trommel Screen <90% Trommel Screen <95% Trommel Screen <97.5% Trommel Screen <99% Wind Sifter Wind Sifter <60% Wind Sifter <70% Wind Sifter <80% Wind Sifter <90% Wind Sifter <95% Wind Sifter <97.5% Wind Sifter <99% Ballistic Separator Ballistic Separator <60% Ballistic Separator <70% Ballistic Separator <80% Ballistic Separator <90% Ballistic Separator <95% Ballistic Separator <97.5% Ballistic Separator <99% Other (please specify) Question Title * 4. Unprocessed Feedstock at Biogas Plants:Based on your experience, what is the approximate level of efficiency of the technologies below in removing plastic contamination? <60% <70% <80% <90% <95% <97.5% <99% Hand Picking Contamination by People on Unprocessed Feedstock Hand Picking Contamination by People on Unprocessed Feedstock <60% Hand Picking Contamination by People on Unprocessed Feedstock <70% Hand Picking Contamination by People on Unprocessed Feedstock <80% Hand Picking Contamination by People on Unprocessed Feedstock <90% Hand Picking Contamination by People on Unprocessed Feedstock <95% Hand Picking Contamination by People on Unprocessed Feedstock <97.5% Hand Picking Contamination by People on Unprocessed Feedstock <99% Paddle Depacker Paddle Depacker <60% Paddle Depacker <70% Paddle Depacker <80% Paddle Depacker <90% Paddle Depacker <95% Paddle Depacker <97.5% Paddle Depacker <99% Separator to Remove Plastic Separator to Remove Plastic <60% Separator to Remove Plastic <70% Separator to Remove Plastic <80% Separator to Remove Plastic <90% Separator to Remove Plastic <95% Separator to Remove Plastic <97.5% Separator to Remove Plastic <99% Hammermills – physical contaminants on size – plastics and others Hammermills – physical contaminants on size – plastics and others <60% Hammermills – physical contaminants on size – plastics and others <70% Hammermills – physical contaminants on size – plastics and others <80% Hammermills – physical contaminants on size – plastics and others <90% Hammermills – physical contaminants on size – plastics and others <95% Hammermills – physical contaminants on size – plastics and others <97.5% Hammermills – physical contaminants on size – plastics and others <99% Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones <60% Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones <70% Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones <80% Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones <90% Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones <95% Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones <97.5% Sedimentation Tank with Air Injection – heavies including grit like glass, eggshells, bones <99% Other (please specify) Question Title * 5. What techniques / technology do you use in your plant(s) use to remove contamination from the final compost or digestate? Compost Whole Digestate Separated Digestate Fibre Separated Digestate Liquor Air lift Separators Air lift Separators Compost Air lift Separators Whole Digestate Air lift Separators Separated Digestate Fibre Air lift Separators Separated Digestate Liquor Picking Stations Picking Stations Compost Picking Stations Whole Digestate Picking Stations Separated Digestate Fibre Picking Stations Separated Digestate Liquor Star Screens Star Screens Compost Star Screens Whole Digestate Star Screens Separated Digestate Fibre Star Screens Separated Digestate Liquor Hand Sorting Hand Sorting Compost Hand Sorting Whole Digestate Hand Sorting Separated Digestate Fibre Hand Sorting Separated Digestate Liquor Conveyor Separation with Air Conveyor Separation with Air Compost Conveyor Separation with Air Whole Digestate Conveyor Separation with Air Separated Digestate Fibre Conveyor Separation with Air Separated Digestate Liquor Flotation Separation Flotation Separation Compost Flotation Separation Whole Digestate Flotation Separation Separated Digestate Fibre Flotation Separation Separated Digestate Liquor Air Classifiers Air Classifiers Compost Air Classifiers Whole Digestate Air Classifiers Separated Digestate Fibre Air Classifiers Separated Digestate Liquor Gravity Separation Gravity Separation Compost Gravity Separation Whole Digestate Gravity Separation Separated Digestate Fibre Gravity Separation Separated Digestate Liquor Optical Sorting Optical Sorting Compost Optical Sorting Whole Digestate Optical Sorting Separated Digestate Fibre Optical Sorting Separated Digestate Liquor Magnets Magnets Compost Magnets Whole Digestate Magnets Separated Digestate Fibre Magnets Separated Digestate Liquor Trommel Screens Trommel Screens Compost Trommel Screens Whole Digestate Trommel Screens Separated Digestate Fibre Trommel Screens Separated Digestate Liquor Vibrating Screens – screened at less than 2mm – plastics Vibrating Screens – screened at less than 2mm – plastics Compost Vibrating Screens – screened at less than 2mm – plastics Whole Digestate Vibrating Screens – screened at less than 2mm – plastics Separated Digestate Fibre Vibrating Screens – screened at less than 2mm – plastics Separated Digestate Liquor Other (please specify) Question Title * 6. COMPOST: Based on your experience, what is the approximate level of efficiency of the technologies below in removing plastic contamination from compost? <60% <70% <80% <90% <95% <97.5% <99% Air lift Separators Air lift Separators <60% Air lift Separators <70% Air lift Separators <80% Air lift Separators <90% Air lift Separators <95% Air lift Separators <97.5% Air lift Separators <99% Picking Stations Picking Stations <60% Picking Stations <70% Picking Stations <80% Picking Stations <90% Picking Stations <95% Picking Stations <97.5% Picking Stations <99% Star Screens Star Screens <60% Star Screens <70% Star Screens <80% Star Screens <90% Star Screens <95% Star Screens <97.5% Star Screens <99% Hand Sorting Hand Sorting <60% Hand Sorting <70% Hand Sorting <80% Hand Sorting <90% Hand Sorting <95% Hand Sorting <97.5% Hand Sorting <99% Conveyor Separation with Air Conveyor Separation with Air <60% Conveyor Separation with Air <70% Conveyor Separation with Air <80% Conveyor Separation with Air <90% Conveyor Separation with Air <95% Conveyor Separation with Air <97.5% Conveyor Separation with Air <99% Flotation Separation Flotation Separation <60% Flotation Separation <70% Flotation Separation <80% Flotation Separation <90% Flotation Separation <95% Flotation Separation <97.5% Flotation Separation <99% Air Classifiers Air Classifiers <60% Air Classifiers <70% Air Classifiers <80% Air Classifiers <90% Air Classifiers <95% Air Classifiers <97.5% Air Classifiers <99% Gravity Separation Gravity Separation <60% Gravity Separation <70% Gravity Separation <80% Gravity Separation <90% Gravity Separation <95% Gravity Separation <97.5% Gravity Separation <99% Magnets Magnets <60% Magnets <70% Magnets <80% Magnets <90% Magnets <95% Magnets <97.5% Magnets <99% Trommel Screens Trommel Screens <60% Trommel Screens <70% Trommel Screens <80% Trommel Screens <90% Trommel Screens <95% Trommel Screens <97.5% Trommel Screens <99% Other (please specify) Question Title * 7. DIGESTATE: Based on your experience, what is the approximate level of efficiency of the technologies below in removing plastic contamination from digestate? <60% <70% <80% <90% <95% <97.5% <99% Vibrating Screens – screened at less than 2mm – plastics Vibrating Screens – screened at less than 2mm – plastics <60% Vibrating Screens – screened at less than 2mm – plastics <70% Vibrating Screens – screened at less than 2mm – plastics <80% Vibrating Screens – screened at less than 2mm – plastics <90% Vibrating Screens – screened at less than 2mm – plastics <95% Vibrating Screens – screened at less than 2mm – plastics <97.5% Vibrating Screens – screened at less than 2mm – plastics <99% Other (please specify) Question Title * 8. What particle sizes (mm) do you screen the final compost or digestate at? Question Title * 9. If you would like to receive a copy of the final report or details on the upcoming online workshop on the 23rd February on the draft conclusions of the study, please enter your email below. Your email address and responses to the questionnaire will be received separately meaning your responses remain anonymous. Next