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Waste Management & Research, Vol. 13, No. 4,
305-314 (1995)
DOI: 10.1177/0734242X9501300402
The Ümraniye-Hekimba i Open Dump Accident
Günay Kocasoy
Bo aziçi University, Institute of Environmental Sciences, 80815 Bebek, Istanbul, Turkey
Kriton Curi
Bo aziçi University, Institute of Environmental Sciences, 80815 Bebek, Istanbul, Turkey
The open dump of Ümraniye-Hekimba i was the main solid disposal site of the Asiatic side of Istanbul. At this site, which was in operation since 1976, 1500-2000 tonnes of solid wastes were disposed of daily. No waste compaction was undertaken during placement. The slope formed by the solid wastes was very steep (3 vertical to 1 horizontal), and recently demolition wastes were disposed of on top of these wastes. On 28 April 1993, an "explosion" took place, followed by the displacement of a large mass of solid wastes which engulfed 11 houses causing the death of 39 people. This paper investigates the possible reasons for this accident and concludes that it was caused by the initial sliding of the solid wastes, which were not deposited in a stable way, followed by an explosion of the methane generated and retained in the landfill. © 1995 ISWA
Key Words: Open dump Ümraniye-Hekimba i landfill accident landfill gas explosion waste slide Turkey.

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K. Curi
A Reply from Prof. K. Curi to comments related to the paper by Kocasoy and Curi
Waste Management Research,
January 1, 1996;
14(3):
327 - 327.
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