PRODUKSI BIOETANOL DARI SORGUM (SORGHUM BICOLOR)SECARA KONTINYU DARI REAKTOR UNGGUN TERFLUIDISASI (FLUIDIZED BED BIOREACTOR)

EKUILIBIUM ◽  
2015 ◽  
Vol 14 (2) ◽  
Author(s):  
Endah Retno Dyartanti ◽  
Margono Margono
Keyword(s):  
Sorghum Bicolor ◽  
Fluidized Bed ◽  
Flow Rate ◽  
Substrate Concentration ◽  
Fermentation Process ◽  
Feed Flow Rate ◽  
Fluidized Bed Bioreactor ◽  
Glucose Levels ◽  
Total Glucose ◽  
Optimization Of Fermentation

<p>Abstract: Many studies have been done regarding the optimization of fermentation process to<br />produce bioethanol. This study aims to determine the effect of feed flow rate during the<br />fermentation. Fermentation is performed continuously by the method of Simultaneous<br />Saccharification Fermentation (SSF)using column Fluidized bed (fluidized bed bioreactor). The<br />used materials are sorghum which converted into glucose in the process of liquefaction and<br />saccharification. This study used the variation of the feed flow rate of 240, 260, 280, and 300<br />ml/minute with a substrate concentration of 25% (m/v). Fifteen minutes before the fermentation<br />was complete, for each flow rate was sampling every 5 minutes to calculate the levels of<br />glucose, total glucose levels, and levels of bioethanol. The results showed that the feed flow<br />rate of 240,260,280 and 300 ml/minutes produced bioethanol with the each highest levels of<br />8.32, 8.32, 8.33, 8.33g/L/h, respectively.<br />Keywords: flow rate, amobil, fluidized bed bioreactor</p>

Investigation on Fluidized Bed Bioreactor Treating Ice Cream Wastewater Using Response Surface Methodology and Artificial Neural Network

2014 ◽  
Vol 12 (1) ◽  
pp. 563-573 ◽  
Author(s):  
K. Thirugnanasambandham ◽  
V. Sivakumar
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Fluidized Bed ◽  
Flow Rate ◽  
Ice Cream ◽  
Agitation Speed ◽  
Fluidized Bed Bioreactor ◽  
Artificial Neural

Abstract In this study, a comparative approach was developed between response surface methodology (RSM) and artificial neural network (ANN) in the predictive capabilities for the removal of chemical oxygen demand (COD) from ice cream industry wastewater using fluidized bed bioreactor. The effects of process variables such as pH, temperature, flow rate and agitation speed investigated using a four-factor three-level Box–Behnken experimental design (BBD). Same design was utilized to train a feed-forward multilayered perceptron (MLP) ANN with back-propagation algorithm. The predictive capabilities of the two methodologies were compared in terms of statistical parameters including coefficient of determination (R2). The results showed that properly trained ANN model is more accurate in prediction as compared to RSM model. Under the optimum conditions (pH of 7, temperature of 40°C, flow rate of 20 ml/min and agitation speed of 175 rpm), 91% of COD was removed.

An Intelligent Reference Governor for Primary Air Control System in a Circulating Fluidized Bed

2015 ◽  
Vol 719-720 ◽  
pp. 376-380
Author(s):  
Xu Sheng Zhuo ◽  
Tong Li ◽  
Fan Yang ◽  
Dan Dan Wang
Keyword(s):  
Fluidized Bed ◽  
Flow Rate ◽  
Circulating Fluidized Bed ◽  
Control Method ◽  
Air Flow ◽  
Feed Flow Rate ◽  
Air Flow Rate ◽  
Operation Conditions ◽  
Bed Temperature ◽  
Reference Governor

In combustion of a circulating fluidized bed, primary air plays a key role in keeping materials fluidized and regulating bed temperature. This report provides a design of reference governor for primary air fans to amend their control commands. That will improve the combustion efficiency via regulating primary air flow rate timely according to the changes of coal feed flow rate and bed temperature. To deal with the large inertia and slow response feature of primary air fans, a rule-based control method was used to design the reference governor. Based on the experiences of technical experts and operation data analysis, an expert rules system with wide coverage range was developed, which composed of the logical relationships between the coal feed flow rate, bed temperature and the primary air flow rate in various operation conditions. Test results show that designed reference governor can improve the control performance of primary air flow rate obviously.

Experimental and Modelling of Aqueous Radioactive Waste Treatment by Ultrafiltration

2018 ◽  
Vol 69 (5) ◽  
pp. 1149-1151
Author(s):  
Laura Ruxandra Zicman ◽  
Elena Neacsu ◽  
Felicia Nicoleta Dragolici ◽  
Catalin Ciobanu ◽  
Gheorghe Dogaru ◽  
...  
Keyword(s):  
Flow Rate ◽  
Suspended Solids ◽  
Waste Treatment ◽  
Operating Pressure ◽  
Feed Flow Rate ◽  
Permeate Flux ◽  
Independent Variables ◽  
Opposite Trend ◽  
Process Factors ◽  
Volumetric Flux

Ultrafiltration of untreated and pretreated aqueous radioactive wastes was conducted using a spiral-wound polysulphonamide membrane. The influence of process factors on its performances was experimental studied and predicted. Permeate volumetric flux and permeate total suspended solids (TSS) were measured at different values of feed flow rate (7 and 10 m3/h), operating pressure (0.1-0.4 MPa), and feed TSS (15 and 60 mg/L). Permeate flux (42-200 L/(m2�h)) increased with feed flow rate and operating pressure as well as it decreased with an increase in feed TSS, whereas permeate TSS (0.1-33.2 mg/L) exhibited an opposite trend. A 23 factorial plan was used to establish correlations between dependent and independent variables of ultrafiltration process.

Utilization of Waste of Enzymes Biomass as Biosorbent for the Removal of Dyes from Aqueous Solution in Batch and Fluidized Bed Column

2020 ◽  
Vol 71 (1) ◽  
pp. 1-12
Author(s):  
Salman H. Abbas ◽  
Younis M. Younis ◽  
Mohammed K. Hussain ◽  
Firas Hashim Kamar ◽  
Gheorghe Nechifor ◽  
...  
Keyword(s):  
Experimental Data ◽  
Aqueous Solution ◽  
Particle Size ◽  
Adsorption Capacity ◽  
Fluidized Bed ◽  
Flow Rate ◽  
Fungal Biomass ◽  
Solution Flow Rate ◽  
Maximum Adsorption Capacity ◽  
Solution Flow

The biosorption performance of both batch and liquid-solid fluidized bed operations of dead fungal biomass type (Agaricusbisporus ) for removal of methylene blue from aqueous solution was investigated. In batch system, the adsorption capacity and removal efficiency of dead fungal biomass were evaluated. In fluidized bed system, the experiments were conducted to study the effects of important parameters such as particle size (701-1400�m), initial dye concentration(10-100 mg/L), bed depth (5-15 cm) and solution flow rate (5-20 ml/min) on breakthrough curves. In batch method, the experimental data was modeled using several models (Langmuir,Freundlich, Temkin and Dubinin-Radushkviechmodels) to study equilibrium isotherms, the experimental data followed Langmuir model and the results showed that the maximum adsorption capacity obtained was (28.90, 24.15, 21.23 mg/g) at mean particle size (0.786, 0.935, 1.280 mm) respectively. In Fluidized-bed method, the results show that the total ion uptake and the overall capacity will be decreased with increasing flow rate and increased with increasing initial concentrations, bed depth and decreasing particle size.

Optimization of Fermentation Process and Quality Properties of Wild Grape Wine

2007 ◽  
Vol 36 (3) ◽  
pp. 366-370 ◽  
Author(s):  
Eun-Jung Kim ◽  
Yeong-Hoon Kim ◽  
Jong-Won Kim ◽  
Hyo-Hyung Lee ◽  
Yu-Jin Ko ◽  
...  
Keyword(s):  
Fermentation Process ◽  
Quality Properties ◽  
Wild Grape ◽  
Grape Wine ◽  
Optimization Of Fermentation

scholarly journals Effects of Fe-Doped Electrolyte and Feed Flow Rate Evaluation in Home Made Solid Oxide Fuel Cell

2021 ◽  
Vol 1143 (1) ◽  
pp. 012007
Author(s):  
Hary Devianto ◽  
Isdiriyani Nurdin ◽  
Pramujo Widiatmoko ◽  
Kafi Adi Prasetya ◽  
Basil Pradipta
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Flow Rate ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Feed Flow Rate ◽  
Rate Evaluation

Column Study for Adsorption of Methylene Blue Dye using Azadirachta indica Adsorbent

2020 ◽  
Vol 17 (4) ◽  
pp. 47-52
Author(s):  
Vibha Goswami ◽  
Renu Upadhyaya ◽  
Sumanta Kumar Meher
Keyword(s):  
Methylene Blue ◽  
Flow Rate ◽  
Azadirachta Indica ◽  
Packed Bed ◽  
Blue Dye ◽  
Feed Flow Rate ◽  
Methylene Blue Dye ◽  
Packed Bed Column ◽  
Bed Height ◽  
Percentage Removal

In this study, synthesised Azadirachta indica adsorbent was used for the removal of methylene blue dye using a packed bed column. The effect of feed flow rate, feed methylene blue dye concentration, and bed height of column on percentage removal of dye was studied. It was observed that the column bed exhausted rapidly at a higher flow rate and therefore, a breakthrough occurred faster. However, it was observed that bed exhaustion time increases on increasing the bed height from 2 to 10 inch at 10 mg/L feed dye concentration and feed flow rate of 40 ml/min. It was also found that the breakthrough curve is more dispersed and the percentage removal of dye increases on decreasing the feed methylene dye concentration from 150 to 10 mg/L. The percentage removal was found to be 96.89% at 20 ml/min of feed flow rate under 10 inch of bed height and 10 mg/L of feed dye concentration. The atomic absorption spectrophotometer and scanning electron microscope were used for estimating the effluent dye concentration from the column and morphological study, respectively.

Sign in / Sign up

Export Citation Format

Share Document