نتایج جستجو برای: heavy metal recovery

تعداد نتایج: 501317  

2014
Ying-Yi Huo Zheng-Yang Li Hong Cheng Chun-Sheng Wang Xue-Wei Xu

Halomonas zincidurans strain B6 was isolated from a deep-sea heavy metal rich sediment from the South Atlantic Mid-Ocean Ridge. The strain showed significant resistance to heavy metals, especially to zinc. Here we describe the genome sequence and annotation, as well as the features, of the organism. The genome contains 3,325 protein-coding genes (2,848 with predicted functions), 61 tRNA genes a...

2009
Mingyin Yao Muhua Liu Lin Huang Jinhui Zhao

To detect heavy metal contents in fruits rapidly, the Citrus Nanfeng tangerines pericarp and flesh have been analyzed by laser induced breakdown spectroscopy. Line emissions from five heavy metal elements, Pb, Cd, Hg,Cr and As, have been clearly extracted. Their intensities correspond to relative concentrations of these elements contained in the analyzed samples. The results demonstrated that t...

Journal: :Environmental Health Perspectives 1978
R P Leonard

Types of land disposed residuals from selected metal smelting and refining industries are described, as are the origin and disposition of land disposed residuals from the primary copper industry as an example. Quantities of land-disposed or stored residuals, including slags, sludges, and dusts, are given per unit of metal production for most primary and secondary metal smelting and refining ind...

The use of amalgamation process to recover gold from mined ores by the small-scale gold miners in the Philippines and other developing countries produces and dispose of untreated wastewater to the receiving water bodies. In this study, a field-scale filter bed system was constructed to treat heavy metal metal-laden wastewater collected from small-scale gold mining site in Paracale, Camarines No...

Journal: :تحقیقات نظام سلامت 0
محمدرضا وصالی ناصح دانشجوی دکترای، گروه مهندسی محیط، دانشکده محیط زیست، دانشگاه تهران، تهران، ایران عبدالرضا کرباسی استادیار، گروه مهندسی محیط، دانشکده محیط زیست، دانشگاه تهران، تهران، ایران فریدون غضبان استاد، گروه مهندسی محیط، دانشکده محیط زیست، دانشگاه تهران، تهران، ایران اکبر باغوند استادیار، دانشکده محیط زیست، دانشگاه تهران، تهران، ایران

background: sediments in marine environment have a large capacity in binding with heavy metals; therefore, they are potential pollutants of water resources. the anzali wetland, located in the southern region of the caspian sea, iran, has been consistently threatened by heavy metal pollutants because of urban, agricultural and industrial wastewater inflow. the purpose of this study is to investi...

Journal: :Microbiology 2003
Mark Dopson Craig Baker-Austin P Ram Koppineedi Philip L Bond

Acidophilic micro-organisms inhabit some of the most metal-rich environments known, including both natural and man-made ecosystems, and as such are ideal model systems for study of microbial metal resistance. Although metal resistance systems have been studied in neutrophilic micro-organisms, it is only in recent years that attention has been placed on metal resistance in acidophiles. The five ...

Journal: :Water 2023

Traditional acid extraction or electrodialytic remediation (EDR) is inefficient to recover phosphorus (P) from incinerated sewage sludge ash (ISSA). This study used a hybrid process including and EDR extract P ISSA remove heavy metals/metals the sequentially. Specifically, was obtained by extracting with 0.2 M H2SO4 two-compartment cell applied in following process. Constant currents of 15 mA, ...

2013
Javier Ruiz-Martínez Andrew M Beale Upakul Deka Mathew G O'Brien Paul D Quinn J Fred W Mosselmans Bert M Weckhuysen

Fluid catalytic cracking (FCC) is the main conversion process used in oil refineries. An X-ray microscopy method is used to show that metal poisoning and related structural changes in the zeolite active material lead to a non-uniform core–shell deactivation of FCC catalyst particles. The study links the detrimental effect of V and Ni poisoning with zeolite destruction and dealumination in a spa...

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