Results 31 to 40 of about 107,393 (306)

Biosorption of Lead (Pb) Metal using Immobilized Pseudomonas putida: Kinetic Analysis and Langmuir-Freundlich Adsorption Isotherm

open access: yesBerkala Sainstek
Heavy metal Pb(II) contamination in industrial wastewater requires effective and environmentally friendly remediation technologies. This research aims to evaluate biosorbent performance for Pb(II) removal through kinetic and adsorption isotherm analysis.
Khairunnisa   +2 more
doaj   +1 more source

Adsorção de selênio em latossolos Selenium adsorption in oxisols

open access: yesRevista Brasileira de Ciência do Solo, 2008
A retenção de Se pelos colóides do solo constitui importante processo para a manutenção da sanidade ambiental. A informação sobre a adsorção de Se em solos altamente intemperizados é restrita e existem poucos padrões quantitativos disponíveis para a ...
Ernesto Rinaldi Mouta   +4 more
doaj   +1 more source

Absorption of Cu(II) and Zn(II) from Aqueous Solutions onto Biochars Derived from Apple Tree Branches

open access: yesEnergies, 2020
The aim of this study was to investigate the adsorption of Cu(II) and Zn(II) onto apple tree branches biochar (BC) produced at 300, 400, 500 and 600 °C (BC300, BC400, BC500, and BC600), respectively. The effect of adsorbent dosage, pH value, contact time,
Shixiang Zhao, Na Ta, Xudong Wang
doaj   +1 more source

Arundo donax L. as a low-cost and promising biosorbent for the removal of crystal violet from aqueous media: kinetic, isotherm and thermodynamic investigations [PDF]

open access: yesChemical Review and Letters, 2019
In the present study, Arundo donax L was used as a low-cost biosorbent for the uptake of basic dye crystal violet (CV) from aqueous media. Systematic batch mode studies of adsorption of crystal violet (CV) on Arundo donax were carried out as a function ...
Fouad Krika   +2 more
doaj   +1 more source

Chromatographic and traditional albumin isotherms on cellulose: A model for wound prpotein adsorption on modified cotton

open access: yes, 2011
Albumin is the most abundant protein found in healing wounds. Traditional and chromatographic protein isotherms of albumin binding on modified cotton fibers are useful in understanding albumin binding to cellulose wound dressings.
Condon, B.   +9 more
core   +1 more source

Polyvinylpolypyrrolidone Immobilized Cu, Cd and Zn in Soils and Reduced Their Uptake by Oilseed Rape

open access: yesAgronomy
Organic amendments application has been proposed as an efficient method for remediation of heavy metals-contaminated soils. This study evaluated the performance of the water-insoluble organic material polyvinylpolypyrrolidone on decontaminating water and
Yiliu Wang   +3 more
doaj   +1 more source

Discrete isothermic surfaces. [PDF]

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1996
Discrete isothermic surfaces are defined as the maps \(F: \mathbb{Z}^2\to \mathbb{R}^3\) such that all elementary quadrilaterals of the surface have cross ratio \(-1\). It is shown that these discrete surfaces possess properties which are characteristic for smooth isothermic surfaces (Möbius invariance, dual surface).
Pinkall, Ulrich, Bobenko, Alexander
openaire   +1 more source

The Isothermal Layer of the Atmosphere [PDF]

open access: yesNature, 1909
APART from other considerations, I think that Mr. Craig's contention (NATURE, January 7, p. 281) as to the isothermal layer is disproved by the results of theodolite observations on ballons-sondes. When a balloon is observed, its altitude above the horizon is in general seen to decrease, showing an increase of wind velocity with height. If Mr.
openaire   +5 more sources

Blood RNA Biomarker Signatures for Early Diagnosis and Prognosis in Ischemic and Hemorrhagic Stroke: The IBIS‐CT1 Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate the expression of nine blood RNA biomarkers in a clinical trial based on genes previously identified in an experimental monkey model of stroke for diagnosis feasibility and prognostication. Methods IBIS‐CT1 was a prospective longitudinal study enrolling patients with ischemic stroke (IS) or intracerebral hemorrhage (ICH ...
Salomé Retailleau   +11 more
wiley   +1 more source

Equilibrium and dynamic moisture adsorption behaviour of bloodmeal based bioplastic [PDF]

open access: yes, 2013
Bioplastics can be manufactured from protein or carbohydrate sources such as wheat gluten, corn, sun flower, keratin, casein, soy, gelatine and whey. A recently developed bioplastic is Novatein thermoplastic (NTP), which is produced from bloodmeal by ...
Lay, Mark C.   +2 more
core  

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