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FOOD WASTE IN RESIDUAL WASTE OF

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					     FOOD WASTE IN RESIDUAL WASTE OF
       HOUSEHOLDS – REGIONAL AND
            SOCIOECONOMIC
              DIFFERENCES

                 F. SCHNEIDER AND G. OBERSTEINER

Institute of Waste Management, BOKU-University of Natural Resources and
Applied Life Sciences, Vienna, Muthgasse 107, 1190 Vienna, Austria

SUMMARY: Food waste from households causes manifold problems in the
management of residual waste. Due to the organic substances biodegraded
under aerobic and anaerobic
conditions from the time food waste is thrown into the waste bin, problems occur
at almost all stages of the waste management system. The paper describes two
studies carried out in different regions in Austria and compares the results of
detailed waste sorting analyses. The selection covered five groups of regions –
from a metropolitan area of a city over 1.5 million inhabitants (Capital City of
Vienna) to rural area with 38 % people working in the primary sector of industry
(mainly agriculture and forestry) in Lower Austria. Within these four groups
several areas and municipalities were investigated by means of waste sorting
analyses. The results of the studies are compared and regional as well as socio-
economic differences in the amount of food waste generated are elaborated.

1. INTRODUCTION

Food waste from households causes manifold problems in the management of
residual waste. Due to the organic substances biodegraded under aerobic and
anaerobic conditions from the time food waste is thrown into the waste bin,
problems occur at almost all stages of the waste management system. This is
especially true since residual waste with a specific organic content or heating
value has to be pre-treated before landfilling, in line with recent legal guidelines.
Additionally, unpleasant odours are developed, waste bins and the collection
vehicle are contaminated, various types of animals are attracted to feed on the
waste, and several environmentally toxic liquid and gaseous emissions are
generated by the biodegradation processes.

				
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posted:6/26/2011
language:English
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