Arid
"The "Teheran Model" - The large scale introduction of a static composting process for high water content municipal waste in arid regions."
Koertel, Andre; Spillmann, Peter
通讯作者Koertel, Andre
会议名称9th International Conference on Environmental Science and Technology
会议日期SEP 01-03, 2005
会议地点Rhodes Isl, GREECE
英文摘要

The author demonstrated that the new biological waste treatment method called "Kaminzugverfahren - Tehran Model" which is a technically simple process in terms of machines and equipments, with regard to leachate pollution is comparable to thermal treatment methods. About 85% of the world population lives in underdeveloped countries with low per capital income and most of them are located in and areas with insufficient and unstable water supplies. Leachate from the existing dumping sites, which were constructed without any safety regulations in these countries, threatens the urgently needed water reservoirs, especially in densely populated locations. For a city like Tehran with a population of 12 Millions and a daily waste production of 7.500 Mg, this creates a critical situation. The household wastes consist of aqueous, hard to aerate fruit and vegetable residues (70%). This waste already produces highly polluted leachate at the time of delivery, which penetrates the unprepared subsoil and directly pollutes the ground water. For the introduction of this new method two local aspects had to be integrated and taken into account; high outdoor temperatures and the ban of water usage during the waste treatment. As a consequence some changes in the heap construction and optimizations at the aeration system were necessary. As an innovation, sieved and stabilized waste was used as input material. After construction of the heaps on an unsealed area, in the aerated decomposing material a leachate circle develops, in which the surplus water evaporates. This phenomenon is the distinctive feature in this procedure. Contrary to present procedures currently been used, it is also possible, without capillary rise and against the direction of diffusion and activated only through aeration to get the leachate stored in the dry stable layer under the fresh wastes into the warmer and upper fresh waste fraction. The fine compost which covers as a bio-filter the fresh waste fraction is used as a condenser. The stable material after the decomposition process can be divided into homogenous and urgently needed fractions.


英文关键词solid waste with high organic fractions waste composting in and regions reducing of waste odours pests leachate and gas emissions ecologically and sustainable waste management
来源出版物Proceedings of the 9th International Conference on Environmental Science and Technology, Vol A - Oral Presentations, Pts A and B
ISSN1106-5516
出版年2005
页码A817-A822
ISBN960-7475-33-X
出版者UNIV AEGEAN
类型Proceedings Paper
语种英语
国家Germany
收录类别CPCI-S
WOS记录号WOS:000237753600126
WOS类目Engineering, Environmental ; Environmental Sciences
WOS研究方向Engineering ; Environmental Sciences & Ecology
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/295651
作者单位(1)Univ Rostock, Fac Agr & Environm Sci, Inst Landscape Construct & Waste Management, D-18059 Rostock, Germany
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GB/T 7714
Koertel, Andre,Spillmann, Peter. "The "Teheran Model" - The large scale introduction of a static composting process for high water content municipal waste in arid regions."[C]:UNIV AEGEAN,2005:A817-A822.
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