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Title: Types of the scaling in hyper saline geothermal system in northwest Turkey
Authors: Demir, Mustafa Muammer
Baba, Alper
Atilla, Vedat
İnanlı, Mustafa
Keywords: Geothermal fluid
Geothermal fields
Calcium carbonate
Issue Date: Apr-2014
Publisher: Elsevier Ltd.
Source: Demir, M.M., Baba, A., Atilla, V., and İnanlı, M. (2014). Types of the scaling in hyper saline geothermal system in northwest Turkey. Geothermics, 50, 1-9. doi:10.1016/j.geothermics.2013.08.003
Abstract: Tuzla is an active geothermal area located in northwestern Turkey, 80km south of the city of Canakkale and 5km from the Aegean Coast. The geothermal brine from this area, which is dominated by NaCl, has a typical temperature of 173°C. Rapid withdrawal of fluid to ambient surface conditions during sampling causes precipitation of various compounds known as scaling. Scaling is one of the important problems in Tuzla geothermal system that reduces the efficiency of the geothermal power plant and causes economical loss. The aim of this study was to determine the type of scaling as a first step towards preventing its formation. The scales formed in the geothermal system were divided into two groups according to location: the ones that formed in downhole and the ones that accumulated along the surface pipeline. Both scales were examined in terms of their elemental composition, structure and morphology using XRF, XRD, and SEM, respectively. The former was found to be mainly composed of PbS (Galena) and CaCO3 (aragonite or calcite). In contrast, the latter was heterogeneous in nature and consisted of mainly saponite like amorphous structure along with submicrometer-sized amorphous silica particles, layered double magnesium and iron hydroxide, and NaCl.
ISSN: 0375-6505
Appears in Collections:Chemistry / Kimya
Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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