Abstract
This project investigates the weight reduction of biodegradable household waste for different types of collections systems. The report is based on empirical experiments simulating the path taken by biodegradable waste through the different systems, from kitchen to final treatment. Data from the empirical experiments have been coordinated with existing data covering the quantities of bio waste collection received by final treatment facilities. This project has resulted in updated data, which reflects the quantities of the biodegradable waste generated at household level. Through this data, it has been possible to calculate the effectiveness of the different systems for collecting biodegradable waste, including their effectiveness as a source for biogas and soil conditioner. The results regarding waste weight reduction show that systems that use paper bags give a substantial weight reduction in both the kitchen (12%) as well as in the garbage disposal container, resulting in an average total weight reduction of 27%. For the bio-plastic bag, there is a small, measurable weight reduction of 7% in the kitchen. One-family household containers also show a reduction but for multiple households contains (typically used for apartment blocks) the reduction was much smaller. The average total weight reduction for bio-plastic systems was 10%. The
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Ternald, Olle
[1]
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Citation Formats
Ternald, Olle.
Weight reduction, energy loss and gaseous emissions for different collection systems for food waste from households; Viktreducering, energifoerlust och gasemissioner vid olika insamlingssystem av matavfall fraan hushaall.
Sweden: N. p.,
2010.
Web.
Ternald, Olle.
Weight reduction, energy loss and gaseous emissions for different collection systems for food waste from households; Viktreducering, energifoerlust och gasemissioner vid olika insamlingssystem av matavfall fraan hushaall.
Sweden.
Ternald, Olle.
2010.
"Weight reduction, energy loss and gaseous emissions for different collection systems for food waste from households; Viktreducering, energifoerlust och gasemissioner vid olika insamlingssystem av matavfall fraan hushaall."
Sweden.
@misc{etde_1004331,
title = {Weight reduction, energy loss and gaseous emissions for different collection systems for food waste from households; Viktreducering, energifoerlust och gasemissioner vid olika insamlingssystem av matavfall fraan hushaall}
author = {Ternald, Olle}
abstractNote = {This project investigates the weight reduction of biodegradable household waste for different types of collections systems. The report is based on empirical experiments simulating the path taken by biodegradable waste through the different systems, from kitchen to final treatment. Data from the empirical experiments have been coordinated with existing data covering the quantities of bio waste collection received by final treatment facilities. This project has resulted in updated data, which reflects the quantities of the biodegradable waste generated at household level. Through this data, it has been possible to calculate the effectiveness of the different systems for collecting biodegradable waste, including their effectiveness as a source for biogas and soil conditioner. The results regarding waste weight reduction show that systems that use paper bags give a substantial weight reduction in both the kitchen (12%) as well as in the garbage disposal container, resulting in an average total weight reduction of 27%. For the bio-plastic bag, there is a small, measurable weight reduction of 7% in the kitchen. One-family household containers also show a reduction but for multiple households contains (typically used for apartment blocks) the reduction was much smaller. The average total weight reduction for bio-plastic systems was 10%. The corresponding value for total weight reduction for plastic bags in an optical system was 2%-4%, with an average of 2%. The largest share of the reduction consists of water, but some carbon is also emitted. Another conclusion of the report it that a larger share of the biodegradable waste generated by the Swedish households is collected than previously assumed. The data for generated (collected) biodegradable waste material shows higher levels and larger differences between the different collection systems than the data for the received (weighted) material at the treatment facilities. The data shows the effectiveness of each system and is significant for the biogas extraction levels and soil conditioner qualities. It is desirable that a large share of the biodegradable household waste is collected, both from an environmental perspective as well as in order to meet the Swedish national targets for biodegradable waste collection. Correlating existing data with data from the empirical experiments shows that 185 kg of biodegradable waste is collected from households using a paper bag-based system and 122 kg from household using a plastic bag-based system. This is equivalent to a 50% higher collection level for paper bag systems compared with plastic bag systems. The equivalent amount of bio waste is reduced in the combustible waste. Based on these numbers, the paper bag based systems offers 39% more methane per connected household than an optical plastic bag based system. Per kilogram incoming wet material, the there is a 23% methane advantage for the paper-based system. However, there is no significant difference in methane content per collected amount of bio waste between the methods. The data sample for bioplastic bags is too small in order to be included in the comparison. The carbon dioxide emissions show that a decomposition process of biodegradable waste is occurring in all types of collection systems. The nitrous oxide emissions are most likely negligible from an environmental perspective, although the results are not statistically verified. No measurable emission levels of methane can be detected, which is very encouraging from an environmental perspective}
place = {Sweden}
year = {2010}
month = {Sep}
}
title = {Weight reduction, energy loss and gaseous emissions for different collection systems for food waste from households; Viktreducering, energifoerlust och gasemissioner vid olika insamlingssystem av matavfall fraan hushaall}
author = {Ternald, Olle}
abstractNote = {This project investigates the weight reduction of biodegradable household waste for different types of collections systems. The report is based on empirical experiments simulating the path taken by biodegradable waste through the different systems, from kitchen to final treatment. Data from the empirical experiments have been coordinated with existing data covering the quantities of bio waste collection received by final treatment facilities. This project has resulted in updated data, which reflects the quantities of the biodegradable waste generated at household level. Through this data, it has been possible to calculate the effectiveness of the different systems for collecting biodegradable waste, including their effectiveness as a source for biogas and soil conditioner. The results regarding waste weight reduction show that systems that use paper bags give a substantial weight reduction in both the kitchen (12%) as well as in the garbage disposal container, resulting in an average total weight reduction of 27%. For the bio-plastic bag, there is a small, measurable weight reduction of 7% in the kitchen. One-family household containers also show a reduction but for multiple households contains (typically used for apartment blocks) the reduction was much smaller. The average total weight reduction for bio-plastic systems was 10%. The corresponding value for total weight reduction for plastic bags in an optical system was 2%-4%, with an average of 2%. The largest share of the reduction consists of water, but some carbon is also emitted. Another conclusion of the report it that a larger share of the biodegradable waste generated by the Swedish households is collected than previously assumed. The data for generated (collected) biodegradable waste material shows higher levels and larger differences between the different collection systems than the data for the received (weighted) material at the treatment facilities. The data shows the effectiveness of each system and is significant for the biogas extraction levels and soil conditioner qualities. It is desirable that a large share of the biodegradable household waste is collected, both from an environmental perspective as well as in order to meet the Swedish national targets for biodegradable waste collection. Correlating existing data with data from the empirical experiments shows that 185 kg of biodegradable waste is collected from households using a paper bag-based system and 122 kg from household using a plastic bag-based system. This is equivalent to a 50% higher collection level for paper bag systems compared with plastic bag systems. The equivalent amount of bio waste is reduced in the combustible waste. Based on these numbers, the paper bag based systems offers 39% more methane per connected household than an optical plastic bag based system. Per kilogram incoming wet material, the there is a 23% methane advantage for the paper-based system. However, there is no significant difference in methane content per collected amount of bio waste between the methods. The data sample for bioplastic bags is too small in order to be included in the comparison. The carbon dioxide emissions show that a decomposition process of biodegradable waste is occurring in all types of collection systems. The nitrous oxide emissions are most likely negligible from an environmental perspective, although the results are not statistically verified. No measurable emission levels of methane can be detected, which is very encouraging from an environmental perspective}
place = {Sweden}
year = {2010}
month = {Sep}
}