Results 31 to 40 of about 36,661 (278)

Concentrator cell methodology in the regeneration and recycle of chromium etching solutions using membrane technology [PDF]

, 2006
The regeneration of chromium (VI) and the recovery of etched copper from chromium etching solutions by electrodialysis is improved by the addition of a concentrator cell, using ion exchange resins or activated carbon cloth as concentrator media, in the ...
Chaudhary, AJ, Ganguli, B, Grimes, SM
core   +1 more source

Effects of Hexavalent Chromium on Physiological Function of Heart, Skeletal Muscle and Sciatic Nerve Trunk of Bullfrog

Taiyuan Ligong Daxue xuebao
Proposes To investigate the toxicological mechanism of hexavalent chromium, the effects of hexavalent chromium on the heart, gastrocnemius muscle and action potential of sciatic nerve trunk in bullfrog were studied from the perspective of ...
Yanjun ZHANG, Jing ZHANG, Quanyou ZHANG, Mingzhen LI, Pengcui LI, Xiaochun WEI, Weiyi CHEN   +6 more
doaj   +1 more source

Hybrid Nano-filtration and Micro-filtration Pilot Processes for the Removal of Chromium from Water [PDF]

آب و فاضلاب, 2018
Heavy metal hexavalent chromium is known as a highly toxic compound and based on World Health Organization standards in concentrations greater than 50 micrograms per liter would lead to diseases such as allergic reactions, skin cancer, lung cancer ...
Mehdi Kargar, Ghasem Zolfaghari
doaj   +1 more source

Principles for Rigorous Design and Application of Synthetic Microbial Communities

Advanced Science, EarlyView.
SynComs are artificially designed to enable inter‐species metabolic interactions, metabolic division of labor, and ecological interactions that can elicit phenotypes like colonization stability and environmental adaptation. This systematic review explores the processes used to construct SynComs, the assessment of the mechanisms of metabolic interaction
Yuxiao Zhang, Minyu Jing, Lihui Lyu, Li Nie, Xihui Xu, Ru Sun, Xiyuan Xu, Siyu Chen, Shuobing He, Yumeng Zhang, Ping Huang, Weijie Luo, Jiaojiao Liang, Guifeng Gao, Kunkun Fan, Teng Yang, Liyan Zhang, Xiao Fu, Sarah M. Allard, Jack A. Gilbert, Jiabao Zhang, Haiyan Chu   +21 more
wiley   +1 more source

Hierarchically Porous Nitrogen‐Doped Carbon with High Conductivity for Rapid and Efficient Cr(VI) Reduction

Advanced Science, EarlyView.
The d‐PNC(1100, 10%) catalyst, synthesized via a zinc‐based ionic liquid self‐sacrificing pore‐forming strategy to create a defect‐rich, hierarchical, nitrogen‐doped porous structure, enhances conductivity, promotes rapid mass transfer and synergistic catalytic activity, driving efficient Cr(VI) reduction in OA solution to generate Cr(III)‐OA complexes.
Danyan Lin, Jie Yang, Fengfeng Chen, Xishi Tai, Zhongshan Chen, Xinrong Guo, Xiangke Wang, Wen Yao   +7 more
wiley   +1 more source

Small Businesses, Public Health, and Scientific Integrity [PDF]

, 2013
This report examines the activities of an independent office within the Small Business Administration: the Office of Advocacy. The Office of Advocacy has responsibility for ensuring that federal agencies evaluate the small business impacts of the rules ...
Katie Greenhaw, Katie Weatherford, Randy Rabinowitz   +2 more
core  

Oral Ingestion of Hexavalent Chromium through Drinking Water and Cancer Mortality in an Industrial Area of Greece - An Ecological Study [PDF]

, 2011
Background: Hexavalent chromium is a known carcinogen when inhaled, but its carcinogenic potential when orally ingested remains controversial. Water contaminated with hexavalent chromium is a worldwide problem, making this a question of significant ...
Christoforidou, Eleni, Christophi, Costas A., Karagas, Margaret R., Kouroutou, Paraskevi, Linos, Athena, Makris, Konstantinos C., Petralias, Athanassios, Stoltidis, Melina, Tzala, Evangelia, Veloudaki, Afroditi   +9 more
core   +3 more sources

Hexavalent chromium removal by ferrochromium slag [PDF]

Journal of Hazardous Materials, 2005
The aim of this study is to demonstrate the potential of Cr(VI) generation during jigging operation applied for ferrochrome recovery from slag. The Cr(VI) concentrations of water contacted with ferrochromium slag (W/FS=10) in a closed cycle after 50 batches were found as 0.61 mg/l.
Mehmet, Erdem, H Soner, Altundoğan, M Deniz, Turan, Fikret, Tümen   +3 more
openaire   +2 more sources

Integrated Evaluation of Contaminant Profiles, Detection Techniques, and Management Strategies for Tannery Sludge

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This review article critically examines the environmental and health hazards of tannery sludge (TS), a complex by‐product of the leather tanning industry. TS is characterized by a diverse array of contaminants, including heavy metals like chromium, organic pollutants such as polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds ...
Yashar Aryanfar, Ali Keçebaş, Soheil Hassanzadeh, Arash Nourbakhsh Sadabad, Farhan Lafta Rashid, Shabbir Ahmad, Ahmed Hendy, Hafiz M. Irfan, Shaban Mousavi Ghasemlou, Julio Blanco Fernandez, Jorge Luis Garcia Alcaraz   +10 more
wiley   +1 more source

Stabilization mechanism of hexavalent chromium ions in portland cement-based materials

Case Studies in Construction Materials
To improve the resource utilization of chromium-containing solid waste in cement-based materials, the leaching rate, valence state, and microscopic morphology of hexavalent chromium in Portland cement-based materials were studied.
Xuewu Guo, Hongrui Ma, Jianwu Zhou, Wei Cheng, Mingfang Ba   +4 more
doaj   +1 more source