آخرین خبرها
🎥 ایران، جزو ۱۰ کشور برتر از لحاظ تجهیزات و نیروی انسانی در آتش‌نشانی
آتش نشانان جان و امید افراد را نجات می‌دهند/تشکیل سازمان ایمنی کشوری در دستور کار قرار گیرد
هشدار درخصوص احتمال وقوع حریق در مراتع اصفهان
مصدومیت ۶ کارگر بر اثر ریزش ساختمان در پرند
فاجعه تونل مکه (۱۳۶۹)
انفجار گاز در «ازمیر» ترکیه؛ ۶۵ تن کشته و زخمی شدند
Chromium
Coupling adsorption by NiO nanopowder with UV/H2O2 process for Cr(VI) removal
Chromium enters surface and ground waters through the wastewater of electroplating, textile, metallurgical, dye production, and other industries, leading to numerous adverse health effects.
Preparation of magnetic chitosan/Fe-Zr nanoparticles for the removal of heavy metals from aqueous solution
Copper and hexavalent chromium are heavy metals that are harmful to human health. Natural adsorbent chitosan, due to its considerable properties such as the presence of functional groups of –NH2 and -OH, non-toxicity, low cost, and biocompatibility, has gained much attention in pollutant removal.
Reduction of chromium toxicity by applying various soil amendments in artificially contaminated soil
Six soil amendments including municipal solid waste compost (MSWC), coal fly ash (CFA), rice husk biochar prepared at 300°C (B300) and 600°C (B600), zerovalent iron (Fe0), and zerovalent manganese (Mn0) were evaluated to determine their ability to reduce mobility of chromium (Cr) in a Cr-spiked soil.
Removal of nickel and total chromium using Escherichia coli biofilm supported on clinoptilolite
Biofilm is communities of microorganisms attached to the surface and is able to concentrate metal species within their cell structure. Therefore, the aim of this study was to produce Escherichia coli biofilm on zeolite (clinoptilolite) and evaluate its ability for nickel (Ni) and chromium (Cr) adsorption from aqueous solutions. A laboratory-scale batch model was used for biodsorption assay.
