Fate of drilling waste discharges and ecological risk assessment in the Egyptian Red Sea: an aquivalence-based fuzzy analysis

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Fate of drilling waste discharges and ecological risk assessment in the Egyptian Red Sea: an aquivalence-based fuzzy analysis

Ahmad Agwa - Nama Orang; Heba Leheta - Nama Orang; Ahmed Salem - Nama Orang; Rehan Sadiq - Nama Orang;

Abstract

Egypt is located in the Northeast of Africa where oil and gas (O&G) are produced offshore from the Gulf of Suez and the Southeast part of the Mediterranean. The O&G production in Egypt is distributed as follows: 70% from Gulf of Suez, 16% from Western desert, 8% from the Sinai Peninsula and 6% from Eastern desert. Past O&G activities, refining and transport have resulted in chronic pollution in Egyptian offshore and numerous environmental programs have been initiated to protect new development areas from the environmental impacts. The offshore drilling process uses drilling fluids (mud) and generates waste fluids and cuttings, which could be the largest discharges going into the receiving water bodies. There are several options to manage offshore drilling wastes: offshore discharge, offshore down-hole injection and onshore disposal. Water-based drilling fluids (WBF) are commonly employed for drilling in Egyptian offshore because of their expected environmental benign behavior. The main objective of this paper is to develop a methodology to determine the fate of heavy metals associated with WBF drilling waste in the marine environment and estimate the associated ecological risks. Proposed contaminant fate model is based on an aquivalence approach, which has been integrated with fuzzy-based analysis to study the uncertainties. This research concluded that the impacts of heavy metals associated with the drilling waste discharges in the receiving waters are minimal.

Keywords : Drilling waste, Water-based mud, Heavy
metals, Aquivalence, Fuzzy, Ecological risk assessment

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Informasi Detail

Judul Seri: Stochastic Environmental Research Risk Assessment (2013) 27:169–181
No. Panggil: -
Penerbit: : Springer-Verlag., 2013
Deskripsi Fisik: Stoch Environ Res Risk Assess (2013) 27:169–181
Bahasa: English
ISBN/ISSN: 1436-3259
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: -
Subjek: ILMU LINGKUNGAN
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Ety

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Fate of drilling waste discharges and ecological risk assessment in the Egyptian Red Sea: an aquivalence-based fuzzy analysis

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