نتایج جستجو برای: GAC

تعداد نتایج: 1220  

ژورنال: :سلامت و محیط زیست 0
فاطمه رضائی f rezaei ph.d. of environmental pollution, department of environmental pollution, faculty of natural resources, tarbiat modares university, tehran, iranدکترای آلودگی محیط زیست، گروه آلودگی محیط زیست، دانشکده منابع طبیعی، دانشگاه تربیت مدرس غلامرضا موسوی g moussavi full professor of environmental health engineering, department of environmental health, faculty of medical sciences, tarbiat modares university, tehran, iranدکترای بهداشت محیط، استاد گروه بهداشت محیط، دانشکده علوم پزشکی، دانشگاه تربیت مدرس علیرضا ریاحی بختیاری a.r riyahi bakhtiari associate professor of natural resources sciences, department of environmental pollution, faculty of natural resources, tarbiat modares university, tehran, iranدکترای مهندسی منابع طبیعی، دانشیار گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه تربیت مدرس یداله یمینی y yamini full professor of analytical chemistry, department of analytical chemistry, faculty of basic sciences, tarbiat modares university, tehran, iranدکترای شیمی تجزیه، استاد گروه شیمی تجزیه، دانشکده علوم پایه، دانشگاه تربیت مدرس

زمینه و هدف: یکی از رایج­ترین روش­ های حذف آلاینده­ های فرار از هوا جذب سطحی است. در حال حاضر تحقیق بر روی جاذب­ های گزینش­ پذیر و ارزان با قابلیت بالای حذف آلاینده از نظر اقتصادی حائز اهمیت است. در این تحقیق کارائی جاذب­ های کامپوزیتی mno/gac و mgo/gac برای جذب تولوئن از هوا در مقیاس آزمایشگاهی مورد مطالعه قرار گرفتند. روش بررسی: جاذب­ های mno/gac و mgo/gac با روش سل-ژل تولید و با آنالیزهای be...

ژورنال: سلامت و محیط زیست 2016
رضائی, فاطمه, ریاحی بختیاری, علیرضا, موسوی, غلامرضا, یمینی, یداله,

Background and Objectives: Adsorption is one of the most common methods for VOCs elimination from waste air stream. The study on the application of a selective and cheap adsorbent with high efficiency in VOCs removal is important from economic aspects. In this study, the potential of MnO/GAC and MgO/GAC composites was investigated for toluene adsorption from air stream at  lab scale. Materia...

2018
H. D. A. Chathumal Jayaweera Induni Siriwardane K. M. Nalin de Silva Rohini M. de Silva

Clean water, which is free from pathogens and toxic chemicals, is vital to human health. The blue planet is encountering remarkable challenges in meeting the ever-increasing demands of clean water. The intention of this research study was to develop a water filter material that is capable of removing bacterial contaminants and heavy metals from fresh water using cost effective and easily fabric...

2012
Fanghua Liu Amelia-Elena Rotaru Pravin M. Shrestha Nikhil S. Malvankar Kelly P. Nevin Derek R. Lovley

Granular activated carbon (GAC) is added to methanogenic digesters to enhance conversion of wastes to methane, but the mechanism(s) for GAC’s stimulatory effect are poorly understood. GAC has high electrical conductivity and thus it was hypothesized that one mechanism for GAC stimulation of methanogenesis might be to facilitate direct interspecies electron transfer (DIET) between bacteria and m...

ژورنال: آب و فاضلاب 2010

هدف از این تحقیق، تصفیه پساب کارخانه‌های تولید الکل (ویناس) در فرایند ترکیبی ازن و کربن فعال گرانوله (GAC) در سیستم پیوسته بود. سیستم پیوسته توسط ازن و کربن فعال گرانولی به‌تنهایی و در فرایند توأم GAC/O3 برای تعیین میزان اثر هم‌افزایی GAC و ازن بر حذف رنگ و COD ویناس حاصل از فرایند تولید آزمایشگاهی اتانول از ملاس نیشکر بررسی گردید. آزمایش‌های پیوسته با میزان ازن 240 میلی‌گرم بر ساعت و در دمای م...

2013
Jin Zhang

In order to improve adsorption capacity of granular activated carbon (GAC), potassium permanganate was used to react with GAC to change the surface properties and improve the adsorption capacity of GAC. By batch experiments, improvement of adsorption capacity of potassium permanganate modified GAC (GACM) was studied. The influence of adsorption time, temperature, ratio of phenol with GAC/GACM, ...

Journal: :Plant physiology 1995
T W Wang R N Arteca

Two Pelargonium 1-aminocyclopropane-1-carboxylate (ACC) synthase cDNAs (GAC-1 and GAC-2) were identified and characterized. GAC-1 is 1934 bp long with a 1446-bp open reading frame encoding a 54.1-kD polypeptide. GAC-2 is a 1170-bp-long ACC synthase polymerase chain reaction fragment encoding 390 amino acids. Expression of GAC-1 and GAC-2 together with a previously identified ACC oxidase (GEFE-1...

2012
Anastasia Paparrizou Kostas Stergiou

Generalized arc consistency (GAC) is the most widely used local consistency in constraint programming. Several GAC algorithms for specific constraints, as well as generic algorithms that can be used on any constraint, have been proposed in the literature. Stronger local consistencies than GAC have also been studied but algorithms for such consistencies are generally considered too expensive. In...

Journal: :Bioresource technology 2016
Luong N Nguyen Faisal I Hai Anthony Dosseto Christopher Richardson William E Price Long D Nghiem

Laccase was immobilized on granular activated carbon (GAC) and the resulting GAC-bound laccase was used to degrade four micropollutants in a packed-bed column. Compared to the free enzyme, the immobilized laccase showed high residual activities over a broad range of pH and temperature. The GAC-bound laccase efficiently removed four micropollutants, namely, sulfamethoxazole, carbamazepine, diclo...

2018
Ping-Li Wu Yi-Fu He Han-Hui Yao Bing Hu

BACKGROUND The aim of this study was to investigate the expression level of martrilin-3 (MATN3) in patients with gastric adenocarcinoma (GAC) and to investigate the prognostic significance of MATN3. MATERIAL AND METHODS Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) data were used to predict the expression and prognostic value of MATN3 mRNA in GAC patients. Seventy-six GAC pat...

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