Mohsen Nosrati
Biotechnology Group, Department of Chemical Engineering, Faculty of Engineering, Tarbiat Modares University, P.O. Box 14115-143 Tehran, I.R. IRAN
[ 1 ] - On-Line Measurement of Dissolved Methane Concentration During Methane Fermentation in a Loop Bioreactor
A dissolved methane sensor based on silicone tube was designed, constructed and optimized.The silicone tube diameter, silicone tube length and helium flow rate (as the carrier gas(were considered as process parameters to be optimized.A continuous stream of helium (50 mL/min) was directed through the tubing, sweeping out the...
[ 2 ] - Determination of Bio-Oxidation Energy Released by Thermophiles in Secondary and Mixed Bio-Solids
Reaction constants and heat release during thermophilic aerobic digestion of typical secondary and mixed sludges were determined. Maximum reaction constant, determined by measuring the amounts of biodegradable volatile suspended solids (bVSS) removed, occurred in the temperature range of 55-60 ºC. Measurement of heat releases were carried out, at the same range, by the aid of a temperature ...
[ 3 ] - بهینه‌سازی تولید بیواتانول از باگاس نیشکر پیش تیمار اسیدی شده با به کارگیری پیکیا استیپیتیس
مقدمه: به علت محدود بودن سوخت‌های فسیلی و مصرف روز افزون آنها، تولید سوخت‌های زیستی مایع از اهمیت بالایی برخوردار است. استفاده از مواد اولیهای که مصرف غذایی نداشته باشند، مانند مواد لیگنوسلولزی برای تولید سوخت‌های زیستی نسل دوم مطرح‌اند. با توجه به اینکه مقدار در خور توجهی از مواد لیگنوسلولزی را قندهای پنتوز تشکیل می‌دهد، استفاده از این قندها برای تولید سوخت‌های زیستی اهمیت ویژهای...
[ 4 ] - Optimization of factors affecting on sulfide oxidation from synthetic spent caustic by Haloalkaliphilic Thioalkalivibrio versutus by focus on sodium ion effect: Application of response surface methodology
In the present study, the effects of four factors including initial sulfide concentration (mg l-1 ), agitation speed (rpm), amount of inoculums (%) and sodium concentration (mg l-1) on removal efficiency (%R) and yield of sulfate production by Thioalkalivibrio versutus from synthetic spent caustic were investigated. For this purpose, experiments are designed by design of experiments (DOE) and R...
[ 5 ] - Algal treatment of a mixture of urban wastewater and Vinasse using Spirulina platensis microalgae
Background and Objective: Algal wastewater treatment is a new and economic technology to remove and recycle nutrients from wastewater. In order to investigate the effect of vinasse on microalgae growth and also the effect of its growth on nitrogen and phosphate removal in a mixture of urban wastewater and vinasse, the growth of Spirulina platensis was studied. Materials and Methods: Growth abi...