نتایج جستجو برای: separation process

تعداد نتایج: 1416659  

ژورنال: طلوع بهداشت یزد 2016
رضایی, شیما, ملکوتیان, محمد,

Introduction: Colored Wastewater due to various environmental problems should be treated before discharge to the environment. Colors have many variety and different methods used for color wastewater treatment, the most widely methods that used is the absorption process by the low-cost adsorbent. To determine the isotherms and kinetics adsorption Process, absorption of methylene blue cationic dy...

Journal: :IFAC-PapersOnLine 2022

In recent years the attention on natural gas production and utilization is growing due to different fundamental aspects. First, availability of has increased thanks technological improvements in extraction techniques that have made possible from unconventional reservoirs. Second, interest clean energy growing, aiming reduce CO2 emission thus global warming. Natural a cleaner fossil fuel compare...

2017
Yayue Pan Haiyang He Jie Xu Alan Feinerman

Purpose – Recently, the constrained surface projection stereolithography (SL) technology is gaining wider attention and has been widely used in the 3D printing industry. In constrained surface projection SL systems, the separation of a newly cured layer from the constrained surface is a historical technical barrier. It greatly limits printable size, process reliability and print speed. Moreover...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

Journal: :Journal of clinical psychology 2011
Evie Kins Bart Soenens Wim Beyers

This study examined associations between parental separation anxiety, controlling parenting, and difficulties in the separation-individuation process, as manifested in separation-individuation pathology. In a sample of emerging adults involved in the process of home leaving (N = 232) and their parents, it was found that parental separation anxiety is positively related to separation-individuati...

Introduction:Owing to its favorable radionuclidic characteristics, such as tl/2 = 6.73 day and Eβ (max) = 497 keV and ease of its large-scale production using medium flux research reactors, lutetium-177 (177Lu) is an attractive radionuclide for various therapeutic applications. No carrier added (NCA) 177Lu was obtained by thermal neut...

Journal: :journal of chemical and petroleum engineering 2011
maede salmasi mina doroudian rad شهره فاطمی somayeh hosseinpour

ch4, c2h6 and c2h4 are the most important outlet gaseous of oxidative couple methane (ocm) reaction and this process is a new technology for conversion of natural gas to ethane and ethylene products. in this study, adsorption of ocm outlet hydrocarbons over 10x zeolite has been examined at equilibrium conditions. temperature and pressure are the most effective operational parameters in the batc...

Enrico Drioli, H.Y. Wong K.K. Lau O.B. Seng,

Direct contact membrane distillation (DCMD) which emerges as an alternative separation technology can effectively perform a colloidal separation process under thermal driven force. DCMD is capable of extracting pure water from aqueous solutions containing non-volatile nanoparticles through the hydrophobic microporous membrane when a vapour pressure difference was established across the membrane...

This study concerns the performance of cocoons spun by silk worms as a natural ‎adsorbent for removal of Methylene Blue (MB) from aqueous solutions. To study the adsorption ‎process, the effect of various parameters such as contact time, adsorbent dosage, dye initial ‎concentration, and pH of the solution were investigated. According to the experiments, the kinetic ‎data were best described by ...

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