نتایج جستجو برای: new bauxite resources

تعداد نتایج: 2061390  

Journal: :Geologia Croatica 2022

Primary and secondary mineral resources are of strategic importance to the EU economy. Montenegro, as a country candidate for membership in EU, is required follow (and later implement) European policies, strategies well initiatives, including those related mining sector. The providing access raw materials future recognized by meeting needs industry, maintaining employment ensuring further devel...

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Journal: :تحقیقات نظام سلامت 0
محمد ملکوتیان استاد، مرکز تحقیقات مهندسی بهداشت محیط و گروه بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی کرمان، کرمان، ایران مرضیه جاودان دانشجوی کارشناسی ارشد، مرکز تحقیقات مهندسی بهداشت محیط و گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی کرمان، کرمان، ایران فرناز ایرانمنش مرکز تحقیقات مهندسی بهداشت محیط، دانشگاه علوم پزشکی کرمان، کرمان، ایران

background: as fluoride concentration in drinking water is one of the effective parameters in human health, finding the ways to remove excess amount of fluoride is very important in water supply projects. this study aimed to evaluate mendon bauxite mine in the removal of fluoride from drinking water. methods: this experimental study was conducted from may to october 2013 on synthetic and actual...

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Journal: :journal of sciences islamic republic of iran 0
a.a calagari

biglar permo-triassic bauxite deposit is located in ~15 km northwest of abgarm, southwest of ghazvin province, west of central iran. it consists of 8 stratiform and discontinuous bauxite lenses lying along the contact of ruteh (permian) and elika (triassic) carbonate formations. petrographically, the bauxite ores exhibit collomorphic-fluidal, pseudo-breccia, pseudo-porphyritic, panidio-morphic-...

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2009
Christina Marie Kennedy Peter P. Marra

Title of dissertation: MATRIX EFFECTS ON INDIVIDUAL AND COMMUNITY-LEVEL RESPONSES OF BIRDS TO FOREST FRAGMENTATION IN JAMAICA Christina Marie Kennedy, Ph.D., 2009 Directed by: Associate Professor Maile C. Neel, Department of Plant Science and Landscape Architecture & Department of Entomology Professor William F. Fagan, Department of Biology Land cover between habitat patches (“matrix”) can impa...

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Journal: Environmental Health Engineering and Management 2017
Farnaz Iranmanesh, Marzie Javdan, Mohammad Malakootian,

Background: Fluoride plays an important role in bone and dentin mineralization; however, excess fluoride intake is harmful to mankind. Methods: This study evaluated the performance of bauxite from active Iranian mines in removing fluoride from drinking water. The effects of pH, contact time, adsorbent dose, and fluoride concentration on defluoridation and removal efficiency were determined. Ki...

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ژورنال: بلورشناسی و کانی شناسی ایران 2011
امینی, لیلا, جعفر زاده, رضا , رقیمی, مصطفی, شمعانیان, غلامحسین,

The Jajarm bauxite deposit is a part of the Irano-Hymalayan karst bauxite belt which is located about 175 km southwest of Bojnourd. This deposit has been developed as a stratiform horizon along the contact of Triassic dolomites and the Jurassic shales and sandstones. The basal contact zone of the bauxite horizon is mainly undulatory, and bauxite fills cavities in the footwall dolomite, whereas ...

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ژورنال: بلورشناسی و کانی شناسی ایران 2003
مؤذن, محسن, عابدینی, علی , کلاگری, علی اصغر ,

The Qopi bauxitic horizon is located west of Miandoab, in West-Azarbaidjan province, NW of Iran. It lies along the boundary of Ruteh (middle-upper Permian) and Elika (lower Triassic) Formations. This horizon includes four distinct lithologic facies such as (1) bauxitic iron ore, (2) ferruginous bauxite, (3) Fe-rich bauxite, and (4) Fe-rich clayey bauxite. Microscopic  examinations showed variou...

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Journal: :Geological Magazine 1910

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2013
Xiuyun Wang Zhilin Chen Yongjin Luo Lilong Jiang Ruihu Wang

Cu/Ba/bauxite possesses superior NOx storage and reduction (NSR) performances, high thermal stability, strong resistance against SO₂ poisoning and outstanding regeneration ability in comparison with Pt/Ba/Al₂O₃. It can serve as a cheap and promising alternative for traditional Pt/Ba/Al₂O₃ in NOx removal from lean-burn engines.

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2017
Houshang Alamdari Hugo F. Lopez

Aluminium, with more than 50 Mt annual production in 2016, is an essential material in modern engineering designs of lightweight structures. To obtain aluminium ingots from bauxite, three main processes are involved: the Bayer process to produce alumina from bauxite; the anode manufacturing process to produce electrodes, and the smelting process using the Hall-Héroult technology. The Hall-Hérou...

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