نتایج جستجو برای: a waste tailing from alumina production

تعداد نتایج: 14731793  

Journal: :محیط زیست طبیعی 0
هانی حمزه کلکناری دانشجوی کارشناسی ارشد رشتۀ اقتصاد کشاورزی، دانشگاه فردوسی مشهد محمد قربانی استاد گروه اقتصاد کشاورزی، دانشگاه فردوسی مشهد فرزانه علیپوریان دانشجو کارشناسی ارشد رشتۀ اقتصاد کشاورزی، دانشگاه فردوسی مشهد اهون کاسب دانشجوی کارشناسی ارشد رشتۀ اقتصاد کشاورزی، دانشگاه فردوسی مشهد سعید حطیطه دانشجوی کارشناسی ارشد رشته اقتصاد کشاورزی دانشگاه فردوسی مشهد

considering the increase in waste production, scarcity of land allocated to landfill in urban areas, concerns about ecological damages caused by hazardous waste and damages done to the environment, municipal waste management has become of tremendous importance. the study investigated the behavioral patterns of households regarding waste separation at source using data collected through intervie...

Journal: :تحقیقات نظام سلامت 0
منیره مجلسی دانشیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران عبدالعظیم علی نژاد دانشجوی دکتری، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران منصور برافراشته پور دانشجوی کارشناسی ارشد، گروه مهندسی بهداشت محیط، کمیته تحقیقات دانشجویی، دانشکده بهداشت، دانشگاه علوم پزشکی مازندران، مازندران، ایران حامد محمدی دانشجوی دکتری، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، تهران، ایران

background : due to the crucial role of dental solid waste in the spreading of pathogens and threats to human health and the environment, its optimal management is very important. methods: this was a descriptive cross-sectional study. the study population consisted of 40 dental centers, from among which 11 dental centers were selected through random sampling. from each center, 3 samples were co...

Journal: :Journal American Society of Mining and Reclamation 1994

جعفرزاده حقیقی فرد , نعمت اله, فاخری رئوف , فرزانه, منوری , سیدمسعود, نبی زاده نودهی , رامین,

Background and Aim: The Razi Petrochemical Complex is one of the greatest factories producing nitrogen and phosphate fertilizers and various other chemicals. The site, comprising 17 production units with a total surface area of around 100 hectares, is located on the outskirts of Imam Khomeini port. The ammonia (1) section of the plant, with its production capacity of 1000 tons/year, was select...

Journal: :JOM 2021

Abstract Secondary aluminum production is required for the conservation of environment. It can significantly reduce greenhouse gas emissions and energy consumption alumina, a source primary aluminum. requires sorting processes metal scrap before starting refining process. Salt slags generated from both secondary need to be recycled/treated as they are considered hazardous byproducts. This revie...

ژورنال: سلامت و محیط زیست 2019

Background and Objective: Medical waste is among the environmental problems. Failure to manage these wastes leads to the prevalence of various diseases. This study aimed to rank the educational hospitals of SBUMS by assessing medical waste reduction. Materials and Methods: First, a review of past national and international studies was performed and accordingly, 12 criteria and 30 sub-criteria ...

Journal: :Journal of colloid and interface science 2006
Cyrille Alliot Lionel Bion Florence Mercier Pierre Toulhoat

Chemical retention, i.e., partition of the element between aqueous solution and mineral surface, is a key phenomenon for assessing the safety of possible nuclear waste disposal. For this purpose, the sorption of Eu(III) onto a model mineral-alpha-alumina-is studied here, including the effects of groundwater chemistry: pH and concentrations of small organic and inorganic ligands (acetate, oxalat...

Considering increasing population growth in recent decades, and consequently, the increase in waste production in the world, waste management and efforts to reduce their harm to the environment has become an important issue. One of the appropriate ways to manage municipal waste is to generate energy from waste, especially by RDF production method. On the other hand, in order to reduce the consu...

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