Fermentative hydrogen production from beet sugar factory wastewater treatment in a continuous stirred tank reactor using anaerobic mixed consortia

2012 ◽  
Vol 7 (1) ◽  
pp. 143-150 ◽  
Author(s):  
Gefu Zhu ◽  
Chaoxiang Liu ◽  
Jianzheng Li ◽  
Nanqi Ren ◽  
Lin Liu ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Hydrogen Production ◽  
Stirred Tank ◽  
Continuous Stirred Tank Reactor ◽  
Sugar Factory ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Fermentative Hydrogen Production ◽  
Continuous Stirred Tank ◽  
Fermentative Hydrogen

scholarly journals Dynamical Analysis of a Continuous Stirred-Tank Reactor with the Formation of Biofilms for Wastewater Treatment

2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Karen López Buriticá ◽  
Simeón Casanova Trujillo ◽  
Carlos D. Acosta ◽  
Héctor A. Granada Diaz
Keyword(s):  
Growth Rate ◽  
Wastewater Treatment ◽  
Stability Analysis ◽  
Equilibrium Points ◽  
Stirred Tank ◽  
Dynamical Analysis ◽  
Continuous Stirred Tank Reactor ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Continuous Stirred Tank

This paper analyzes the dynamics of a system that models the formation of biofilms in a continuous stirred-tank reactor (CSTR) when it is utilized for wastewater treatment. The growth rate of the microorganisms is modeled using two different kinetics, Monod and Haldane kinetics, with the goal of studying the influence of each in the system. The equilibrium points are identified through a stability analysis, and the bifurcations found are characterized.

Bio-Hydrogen Production through Anaerobic Microorganism Fermentation from Molasses Wastewater in a Continuous Stirred Tank Reactor

2015 ◽  
Vol 737 ◽  
pp. 336-339
Author(s):  
Zhi Qin ◽  
Yong Yan Cui ◽  
Chao Yu Zhang ◽  
Bing Xie
Keyword(s):  
Hydrogen Production ◽  
Ph Value ◽  
Stirred Tank ◽  
Organic Loading Rate ◽  
Stable Operation ◽  
Continuous Stirred Tank Reactor ◽  
Anaerobic Microorganism ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Continuous Stirred Tank

In order to treat the beet sugar factory wastewater and produce hydrogen, a low pH, ethanol-type fermentation process had happened in a continuous stirred tank reactor (CSTR) with an effective volume of 9.6 L in this experiment. The results showed that after inoculation with activated sludge and operation at organic loading rate (OLR) of 9 kgCOD/m3·d, hydraulic retention time (HRT) of 8h, influent pH value of 6.5 and temperature of 35°C for 30 days, the CSTR achieved stable ethanol-type fermentation. During this period of stable operation, the reactor showed a stable COD removal efficiency of 19.2% and hydrogen production rate of 0.1L/gMLSS·d. Effluent pH ranged from 4.0 to 4.5. The total amount of ethanol and acetic acid was 1384 mg/L, accounted for 81% of the total liquid products, which can be attributed to ethanol-type fermentation. The experimental results showed that the CSTR system had good operation stability and microbial activity, which led to high substrate conversion rate and hydrogen production ability.

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