نتایج جستجو برای: gac

تعداد نتایج: 1220  

Journal: :Sustainability 2022

In this study, a low-cost granular activated carbon doped with Fe2O3 nanoparticles (Fe–GAC) was prepared via modified sol-gel technique and utilized for the elimination of lead (Pb(II)) chromium (Cr(T)) ions from synthetic actual brackish water. The effect adsorption parameters on removal Pb(II) Cr(T) water evaluated in batch tests. characterization results validated distribution well-defined o...

Journal: :Water SA 2022

Langmuir and Freundlich isotherm adsorption models were used to predict iron lead removal from automobile workshop stormwater runoff. Combined low-cost filter systems consisting of granular activated carbon–rice husk (GAC–RH) river gravel–granular carbon (GR–GAC) in this study. The effects adsorbent dosage contact time on the capacity adsorbents, as well efficiencies systems, also investigated....

2013
Christophe Lecoutre Anastasia Paparrizou Kostas Stergiou

One of the most widely studied classes of constraints in constraint programming (CP) is that of table constraints. Numerous specialized filtering algorithms, enforcing the wellknown property called generalized arc consistency (GAC), have been developed for such constraints. Among the most successful GAC algorithms for table constraints, we find variants of simple tabular reduction (STR), like S...

2006
YUEFENG F. XIE

AND YUEFENG F. XIE aloacetic acids (HAAs) and trihalomethanes (THMs) are the major disinfection by-products (DBPs) found in chlorinated drinking water. Nine species of HAAs are commonly found in chlorinated water: monochloroacetic acid (ClAA), monobromoacetic acid (BrAA), dichloroacetic acid (Cl2AA), bromochloroacetic acid (BrClAA), dibromoacetic acid (Br2AA), trichloroacetic acid (Cl3AA), brom...

Journal: :Environmental science & technology 2005
Zhimang Gu Jun Fang Baolin Deng

Granular activated carbon-based, iron-containing adsorbents (As-GAC) were developed for effective removal of arsenic from drinking water. Granular activated carbon (GAC) was used primarily as a supporting medium for ferric iron that was impregnated by ferrous chloride (FeCl2) treatment, followed by chemical oxidation. Sodium hypochlorite (NaClO) was the most effective oxidant, and carbons produ...

Journal: :Journal of physics 2021

The activated carbon loaded with manganese (GAC-Mn) was prepared and optimized for the treatment of acid red wastewater. Scanning electron microscope-energy dispersive spectrometer (SEM-EDS), Brunner-Emmett-Teller surface area (Sbet) analysis results revealed that successfully on larger specific obtained. kinetics study indicated removal GAC-Mn followed pseudo-second-order model.

Journal: :Bioresource Technology 2021

Little is known about the effect of carbon-based conductive material (CM) addition on anaerobic co-digestion fat, oil and grease (FOG) waste activated sludge (WAS). In this study, three types CMs (nano-graphite (NG), granular carbon (GAC), cloth (CC)) nine dosages were evaluated for their influences performance. The best dosage was achieved at 0.2 g/L NG, 10 GAC, 1 cm × 5 CC with 13–22% increme...

2015
Sophie Englund

Evaluation of the Removal Efficiency of Perfluoroalkyl Substances in Drinking Water Sophie Englund Per-and polyfluoroalkyl substances (PFASs) are chemicals that have been used for over 50 years. They are both hydrophobic and hydrophilic, which make them useful in a wide range of products, both in the domestic and industrial market. Recently, the global attention on PFASs has increased due to th...

Journal: :Water research 2014
Yuliya Kalmykova Nashita Moona Ann-Margret Strömvall Karin Björklund

Landfill leachates are repeatedly found contaminated with organic pollutants, such as alkylphenols (APs), phthalates and polycyclic aromatic hydrocarbons (PAHs) at levels exceeding water quality standards. It has been shown that these pollutants may be present in the colloidal and truly dissolved phase in contaminated water, making particle separation an inefficient removal method. The aim of t...

Journal: :The Journal of Experimental Medicine 1980
D E Briles J M Davie

An inbred strain can produce several hundred different anti-group A carbohydrate (GAC) antibodies, as analyzed by isoelectric focusing. However, each individual mouse produces the bulk of its anti-GAC antibody as only one or two different spectrotypes, which appear to be randomly chosen. By using adoptive transfer techniques, we have observed that clonal commitment occurs very early in immuniza...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید