کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6982313 | 1454278 | 2015 | 49 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanisms of foam formation in anaerobic digesters
ترجمه فارسی عنوان
مکانیسم تشکیل فوم در هیدرولیدهای بی هوازی
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کلمات کلیدی
WWTPThree-phase foamsRTOLREPSVFAVolatile fatty acids - اسیدهای چرب فرارWAS - بودBubble formation - تشکیل حبابWastewater treatment plant - تصفیه خانه فاضلاب Total solids - جامدات جامدvolatile solids - جامدات فرارSludge retention time - زمان نگهداری لجنPrimary sludge - لجن اولیهActivated sludge - لجن فعالWaste activated sludge - لجن فعال زبالهExtracellular polymeric substances - مواد پلیمری خارج سلولیOrganic loading rate - نرخ بارگیری آلیAnaerobic digester - هیدرژی بی هوازی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
چکیده انگلیسی
An anaerobic digester (AD) is the most essential step to generate energy in the form of biogas from waste. AD foaming is widespread and leads to deterioration of the AD process and operation. In extreme conditions, AD foaming poses a significant safety risk and considerable economic impacts. It is, therefore, necessary to understand the fundamentals of AD foaming to develop effective strategies that can help minimize the foaming impacts. Several aspects of AD foaming have attracted considerable research attention, however, the focused has been mainly on site specific causes and prevention. Here, the available three-phase foam literature is reviewed with an emphasis on the fundamental aspects of bubble formation in AD: similarities between AD foams and other “desirable” foams, surface rheology, physico-chemical aspects of carbon dioxide (CO2) in digesters, dynamics of the gas-phase, pH, alkalinity and certain relationships between these factors are discussed. All of the abovementioned fundamental aspects seem to be involved in AD foam formation. However, the detailed relationship between these uncontrolled and controlled factors, foam formation and its implications for process and operation of AD is still inconclusive.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces B: Biointerfaces - Volume 126, 1 February 2015, Pages 621-630
Journal: Colloids and Surfaces B: Biointerfaces - Volume 126, 1 February 2015, Pages 621-630
نویسندگان
Bhargavi Subramanian, Krishna R. Pagilla,