Waste Flow Structure in Urban Area of Developing Country

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Other Title
  • 途上国の都市における「ごみの流れ」の構造分析
  • 途上国の都市における「ごみの流れ」の構造分析 : スリランカ・キャンディ市を事例に
  • トジョウコク ノ トシ ニ オケル 「 ゴミ ノ ナガレ 」 ノ コウゾウ ブンセキ : スリランカ ・ キャンディシ オ ジレイ ニ
  • —Kandy Municipal Council in Sri Lanka as a Case Study—
  • ―スリランカ・キャンディ市を事例に―

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<p>It is very difficult to formulate a comprehensive and sustainable solid waste management plan in developing countries due to the lack of reliable source of basic waste data. The waste flow has not been comprehensively understood because many researchers (such as Thanh et al. 2010) focus on household waste of urban area. This study implemented a survey which considering the amount of waste generation, discharge amount, collection amount, disposal amount by analyzing each waste source of waste generation, including business sector, both household in waste collection and non-collection area. Taking waste generation variables into consideration such as income group and period (one week) to understand the life styles. This study analyzed the waste generation structure of Kandy MC in Sri Lanka comprehensively from the waste amount and composition survey. Although recyclable items are collected well by recycle agency, informal sector and waste collection workers comparatively, the results of the survey show that the organic waste accounts for more than 70 percent of all waste and the business waste accounts for 72 percent of the source of waste generation, this indicates that the lack of intermediate treatment facilities such as compost facility is the problem in Kandy MC. To understand the waste flow structure including business waste in urban area is critical point for future waste policy making in developing countries. In addition, the waste generation rate has a relation with income group, the high-income group has a significant difference on weekday and weekend in spite of the difference of waste generation rate by days within middle and low income group, and this shows no significant result in Kandy MC. Thus, taking high income group into consideration in future study is overarching to design waste management policy, such as separation collection.</p>

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