نتایج جستجو برای: heavy minerals

تعداد نتایج: 146769  

2015
P. Nazni S. Deepa

The main aim of the study was to evaluate the various minerall and heavy metals parameters of seaweeds present in the south coastal line. The five red seaweeds namely Acanthophora deliei, Scinaia furcellata, Porphyra tenera, Gracilaria verucosa and Hypnea species were collected from the Pamban, South east coast India. These samples were analyzed for its mineral contents such as sodium, potassiu...

Joy Uzoamaka Ezugwu , Nwachukwu Romanus Ekere , Remigius Ibe Onoja , Uwakwe Simon Onoja ,

Background: Food poisoning resulting from microbial and heavy metals pollution is commonplace. These contaminants do not only reduce the nutritional value of the food but are in many cases toxic. In this study, the proximate composition, bacterial quality and some heavy metals (Cd, Pb, Hg) concentration in three common fish species (Claria gariepinus, Heterobrachus bidorsalis and Channa obscura...

ژورنال: سلامت و محیط زیست 2021

Background and Objective: Due to the importance of Mordab river, the concentration and distribution of heavy metals in sediments and part of Caspian sea coast, mostly affected by the Mordab river, were evaluated. Additionally, considering the possibility of heavy metals release from sediments to water column and transfer to crops, the health risk of rice consumption in the region was assessed. ...

2010
Thomas Bissig Rodrigo Riquelme

Article history: Received 5 February 2010 Received in revised form 21 September 2010 Accepted 21 September 2010 Available online 18 October 2010 Editor: T.M. Harrison

Journal: :Frontiers in Environmental Science 2022

The clay–microbial consortium is ubiquitous in the soil near mining area and plays an important role transport of heavy metals. In this study, Chlorella sorokiniana FK was separated from lead–zinc mine tailings. montmorillonite– system as a typical case applied to study Pb(II) biomineralization presence usually co-existent Ca(II) further reduce migration transformation environment. showed good ...

Journal: :محیط شناسی 0
سیده صفیه هاشمیان قهفرخی دانشجوی کارشناسی ارشد، گروه خاک شناسی، دانشکدۀ کشاورزی، دانشگاه شهید چمران اهواز احمد لندی دانشیار گروه خاک شناسی، دانشکدۀ کشاورزی، دانشگاه شهید چمران اهواز حسین خادمی استادگروه خاک شناسی، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان سعید حجتی استادیار گروه خاک شناسی، دانشکدۀ کشاورزی، دانشگاه شهید چمران اهواز

introduction industrialization and urbanization of societies have caused many environmental problems. therefore, environmental protection has recently become highly important. water resources are particularly of high risk of pollution from industrial waste disposal to river, surface, and ground water, and also from discharge of water to municipal waste water collection systems. these effluents ...

Journal: :Science 1981
H A Lowenstam

Organisms are capable of forming a diverse array of minerals, some of which cannot be formed inorganically in the biosphere. The initial precipitates may differ from the form in which they are finally stabilized, or during development of the organism one mineral may substitute for another. Biogenic minerals commonly have attributes which distinguish them from their inorganic counterparts. They ...

Journal: :Minerals 2023

Heavy metal contamination is listed among the most alarming threats to environment and human health. The detrimental effects of heavy metals in natural span from a reduction biodiversity toxic on marine life—through microplastic born metals, impairment microbial activity soil, animal reproduction. A host different chemical biological technologies have been proposed alleviate environmental by me...

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