Scholarly record

IMPACT OF BIOLOGICAL WASTE COLLECTION STRATEGY ON TOTAL GHG EMISSIONS IN CLIMATIC CONDITIONS OF NORTH-EASTERN POLAND

Maciej Neugebauer

Abstract

Biological waste - so-called wet garbage - is one of the problems of efficient and clean waste collection. Due to their nature - they quickly decompose and cause unpleasant odor. Waste management of this biological garbage is possible in several different ways. They can be transported to landfill with other MSW. They can be segregated and collected separately and then processed in a collective way also in several ways. They can also be utilize in the place of origin. The paper presents energy analysis and environmental impact of various strategies for the collection and management of biological waste generated in households in the conditions of north-eastern Poland. The consumption of energy carriers were analyzed (and consequently CO2 emissions) on collection, processing (which, in turn, affects CO2 emissions as well as other GHGs) and redistribution by various methods of generated waste. It also take into consideration the fact that there was a need for different intensity of waste collection. As waste, such as glass пїЅ can be collected once a month - so-called wet waste - eg household waste (kitchen waste, etc.) or mixed waste must be collected at least once a week in Central European climate conditions - and in countries with warmer climate conditions even more frequently. And it does not depend on the amount of produced waste. This reduces the efficiency of waste transportation and increases the unit fuel consumption per kg of collected waste. This also included the analysis of biological waste generated in green areas - in the backyard gardens, because on the environment also affects the way the biological waste is processed or stored, it analyzes, how these processes affect GHG emissions. The analysis shows that the choice of the best solution depends on the C / N ratio of the processed biological waste. Depending on its size, it is beneficial to either compost biological waste (preferably near the site of its origin) or anaerobic digestion - and then produce in co-generation heat and electricity from the resulting biogas.

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DOI resolver: doi.org/10.5593/sgem2017h/43/s18.012

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