Enhancement of hydrogen production during waste activated sludge anaerobic fermentation by carbohydrate substrate addition and pH control

2012 ◽  
Vol 114 ◽  
pp. 349-356 ◽  
Author(s):  
Yinguang Chen ◽  
Naidong Xiao ◽  
Yuxiao Zhao ◽  
Hui Mu
Keyword(s):  
Hydrogen Production ◽  
Activated Sludge ◽  
Anaerobic Fermentation ◽  
Ph Control ◽  
Waste Activated Sludge ◽  
Substrate Addition

scholarly journals Hydrogen production from buffer-free anaerobic fermentation liquid of waste activated sludge using microbial electrolysis system

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 38769-38773 ◽  
Author(s):  
Weiwei Cai ◽  
Wenzong Liu ◽  
Dan Cui ◽  
Aijie Wang
Keyword(s):  
Hydrogen Production ◽  
Activated Sludge ◽  
Anaerobic Fermentation ◽  
Waste Activated Sludge ◽  
Fermentation Liquid ◽  
Phosphate Ions ◽  
System P ◽  
Promising Source ◽  
Rich Content ◽  
Electrolysis System

Anaerobic fermentation liquid from waste activated sludge with a rich content of organics and phosphate ions is a promising source of carbon and electrolytes for MECs.

Enhancement of Bio-Hydrogen Production from Waste Activated Sludge by Carbohydrate Substrate Addition and Ph Adjusting

2014 ◽  
Vol 1010-1012 ◽  
pp. 48-54
Author(s):  
Yu Xiao Zhao ◽  
Min Tian Gao ◽  
Hui Mu
Keyword(s):  
Hydrogen Production ◽  
Synergistic Effect ◽  
Activated Sludge ◽  
Protein Degradation ◽  
Ph Value ◽  
Waste Activated Sludge ◽  
Nitrogen Ratio ◽  
Optimal Ph ◽  
Substrate Addition

The effects of carbohydrate/nitrogen ratio (C/N) and pH on hydrogen production from waste activated sludge (WAS) were investigated. Firstly, the optimal pH value for hydrogen production was influenced by the C/N ratio, which was pH 10, 9, 8, 8, 8, 6, and 5, at the C/N ratio of 7 (sole sludge), 10, 15, 20, 25, 30 and 40, respectively. The maximal hydrogen production (100.6 mL/g-COD) was achieved at C/N of 25 and pH 8, which was due to the synergistic effect of carbohydrate addition on hydrogen pro-duction, the enhancement of sludge protein degradation and protease and amylase activities, and the suitable fermentation pathway for hydrogen production.

Enhancement of sludge decomposition and hydrogen production from waste activated sludge in a microbial electrolysis cell with cheap electrodes

2015 ◽  
Vol 1 (6) ◽  
pp. 761-768 ◽  
Author(s):  
Yinghong Feng ◽  
Yiwen Liu ◽  
Yaobin Zhang
Keyword(s):  
Hydrogen Production ◽  
Activated Sludge ◽  
Waste Activated Sludge ◽  
Electrolysis Cell ◽  
Microbial Electrolysis Cell ◽  
Graphite Electrodes ◽  
Sludge Digestion ◽  
Microbial Electrolysis

Cheap Fe/graphite electrodes substantially enhanced hydrogen production from anaerobic waste activated sludge digestion in a microbial electrolysis cell.

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