نتایج جستجو برای: bio sorbent

تعداد نتایج: 63826  

Journal: :Journal of the Air & Waste Management Association 1990

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده عمران 1394

حضور نفت و مشتقات آن در خاک منجر به آلودگی خاک شده و می تواند چرخه های زیستی موجود در طبیعت را مختل کرده و حتی در نهایت منجر به آلودگی آب زیرزمینی به عنوان اصلی ترین منبع آب آشامیدنی گردد. آلودگی های نفتی، از جمله رایج ترین و خطرناک ترین آلاینده هایی هستند که باعث آلودگی محیط زیست می شوند. روش های زیستی پاکسازی آلودگی خاک به عنوان روش های کم هزینه و دوستدار محیط زیست شناخته شده اند. فرایند زیست...

Journal: :Applied Water Science 2021

Abstract Two forms of activated carbon (i.e., granular and powdered forms) used to test mercury removal in solution. These carbons were obtained from the shells a palmae biomass ion aquatic systems. The African shell taken out broadly simply full-fledged palm tree. This serves as precursor formulation not documented. fractions described for chemical composition, isoelectric point, surface area....

Journal: :European Scientific Journal, ESJ 2021

Background: Blood transfusion improves health and saves lives. Safe blood must be ensured for our populations. Quality assurance is a process that includes set of coordinated activities in order to achieve the quality objective. Compliance with management rules medical biology laboratories requires verification methods prior their use. This study aimed verify on-site performance Enzyme Linked I...

Journal: : 2023

This study investigates the performance of granular dead anaerobic sludge (GDAS) bio-sorbent as permeable reactive barrier in removing phenol from a simulated contaminated shallow groundwater. Batch tests have been performed to characterize equilibrium sorption properties GDAS and sandy soil phenol-containing aqueous solutions. The results proved that best values operating parameters, which ach...

2011
Brandy J. Johnson Nicole E. Anderson Paul T. Charles Anthony P. Malanoski Brian J. Melde Mansoor Nasir Jeffrey R. Deschamps

The development of porphyrin-embedded mesoporous organosilicate materials for application to the detection of volatile hydrocarbon solvents is described. Design of the receptor and optical indicator construct begins with parallel selection of the porphyrin indicator and design of the mesoporous sorbent. For the porphyrin indicator, high binding affinity and strong changes in spectrophotometric ...

Journal: :Molecules 2016
Brice A Russell Pravin Khanal Maria M Calbi Masako Yudasaka Sumio Iijima Aldo D Migone

We present the results of a study of the kinetics of adsorption on aggregates of open carbon nanohorns using argon and CF₄ sorbates. We measured the equilibration times for each value of the sorbent loading along eight adsorption isotherms (four isotherms for each sorbate species). We found that: the equilibration times decrease as the sorbent loading (and the equilibrium pressure of the coexis...

Journal: :Journal of chromatographic science 2002
Aditya K Misra Upasana Gupta

An easy, inexpensive, and accurate method for the analysis of synthetic dyes by means of ion-pair thin-layer chromatography (IPTLC) on mixed sorbent phases containing silica gel G and barium sulfate in an aqueous ethanol system is studied. The effect of the composition of the sorbent phases has a major effect on the hundred-fold relative migration rate, as also does the effect of the ion-pairin...

Journal: :ChemSusChem 2014
Christopher J Keturakis Fan Ni Michelle Spicer Michael G Beaver Hugo S Caram Israel E Wachs

The separation, capture, and storage of CO2 , the major greenhouse gas, from industrial gas streams has received considerable attention in recent years because of concerns about environmental effects of increasing CO2 concentration in the atmosphere. An emerging area of research utilizes reversible CO2 sorbents to increase conversion and rate of forward reactions for equilibrium-controlled reac...

2008
Yu-Ting Wei Yu-Ming Zheng J. Paul Chen

Excess intake of boron containing water can pose serious problems on human beings. Traditional technologies are limited by insufficient efficiency especially for trace boron removal. In this study, a novel sorbent was developed. A series of batch sorption experiments was conducted to investigate the boron sorption behaviors of the synthesized chitosan based sorbent. Our results show, comparing ...

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