نتایج جستجو برای: mbbr

تعداد نتایج: 197  

Journal: :Separation and Purification Technology 2023

• Suspended BioMnOx effectively activate PMS to remove a mixture of micropollutants. Radicals •OH, •SO4? and 1O2 played important role in the micropollutant removal. A BioMnOx/PMS system indicates as promising post-treatment for wastewater effluent. The toxicity effluent was minimum after this polishing treatment. activation peroxymonosulfate (PMS) generate radical oxygen species (ROS) situ che...

Journal: :Sustainability 2023

Landfill leachate is a complex and highly polluted wastewater that poses significant environmental challenges worldwide. This study proposes an innovative approach to addressing this challenge by developing integrated anaerobic–aerobic moving bed biofilm reactor (MBBR) biochar adsorption method for the efficient removal of organic matter nutrients from landfill leachate. The MBBR provides suita...

ژورنال: :نشریه مهندسی عمران و محیط زیست دانشگاه تبریز 2014
فرهاد قادری بیتا آیتی

فرمالدئید در بسیاری از فعالیت­های صنعتی مانند تولید چسب و رزین، کاغذ و داروسازی کاربرد دارد. سمیت این ماده برای میکروارگانیسم­ها سبب مطالعه کمتر روش­های بیولوژیکی هوازی برای تصفیه آن شده است. در این تحقیق، قابلیت تصفیه بیولوژیکی هوازی فرمالدئید توسط میکروارگانیسم­های راکتور بیوفیلمی با بستر متحرک (mbbr) و میکروارگانیسم­های گرانوله راکتورهای ناپیوسته متوالی با جریان رو به بالا (sbar) در محدوده ف...

2016
Nasim Esmaeilirad S Mehdi Borghei Manouchehr Vosoughi

Treatment of waste water containing ethylene glycol (EG) by implementing a sequence of two Moving Bed Biofilm Reactors (MBBR) were studied. Reactors were operated at different hydraulic retention times (HRT) of 48, 24, 18, and10 hours while EG concentration was in the range of 10 mg/l to 1,150 mg/l. Throughout the experiments the ratio of EG Chemical Oxygen Demand (COD) to total COD was changed...

Journal: :Water 2023

Excess sludge production is one of the limitations biological activated process. Therefore, study’s objective to upgrade MBBR process an integrated fixed film-activated (IFAS) reduce excess production. Two scenarios were followed in this study eliminate process: first, modifying moving bed biofilm reactor (MBBR) system by increasing solid retention time (SRT) from 5 15 days; and second, upgradi...

Journal: :Water 2023

Excessive discharge of ammonia nitrogen wastewater from intensive aquaculture has worsened in recent years. Therefore, there is an urgent need to develop effective and energy-saving denitrification technology. This study intends adopt a moving bed biofilm reactor (MBBR) remove through the combination adsorption shortcut simultaneous nitrification (SND). The research focuses on operational param...

2017
Edward Pfeiler Nestor O. Nazario-Yepiz Fernan Pérez-Gálvez Cristina Alejandra Chávez-Mora Mariana Ramírez Loustalot Laclette Eduardo Rendón-Salinas Therese Ann Markow

Population genetic variation and demographic history in Danaus plexippus (L.), from Mexico were assessed based on analyses of mitochondrial cytochrome c oxidase subunit I (COI; 658 bp) and subunit II (COII; 503 bp) gene segments and 7 microsatellite loci. The sample of 133 individuals included both migratory monarchs, mainly from 4 overwintering sites within the Monarch Butterfly Biosphere Rese...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1388

غلظت بالای نمک در فاضلاب تولیدی برخی صنایع و نیز آب مصرفی مناطق ساحلی سبب افزایش شوری و ایجاد مشکلات عدیده در تصفیه فاضلاب می شود. عامل شوری در اینگونه فاضلابها وجود آنیونهایی مانند کلرور و سولفات و کاتیونهایی مانند سدیم و منیزیم است. به دلیل بالا بودن شوری در این پسابها میکروارگانیسم های موثر در امر تصفیه به علت پلاسمولیز شدن دیواره سلولی از بین می روند، در نتیجه حذف مواد آلی توسط این میکروارگ...

Journal: :iranian journal of environmental technology 0
mohammad delnavaz assistant professor of environmental engineering, kharazmi university, tehran, iran hossein zangooei msc. of environmental engineering, kharazmi university, tehran, iran

the purpose of this study is to investigate the accuracy of predictions of aniline removal efficiency in a moving bed biofilm reactor (mbbr) by various methods, namely by rbf, anfis, and fuzzy regression analysis. the reactor was operated in an aerobic batch and was filled by light expanded clay aggregate (leca) as a carrier for the treatment of aniline synthetic wastewater. exploratory data an...

Journal: :iranian journal of public health 0
jalil jafari dept. of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran. alireza mesdaghinia dept. of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran. ramin nabizadeh dept. of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran. mehrdad farrokhi dept. of environmental health, school of public health, guilan university of medical sciences, rasht, iran. amir hossein mahvi dept. of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran ; center for solid waste research, institute for environmental research, tehran university of medical sciences, tehran, iran.

anaerobic treatment methods are more suitable for the treatment of concentrated wastewater streams, offer lower operating costs, the production of usable biogas product. the aim of this study was to investigate the performance of an anaerobic fluidized bed reactor (afbr)-aerobic moving bed bio reactor (mbbr) in series arrangement to treat currant wastewater.the bed materials of afbr were cylind...

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