Enhancement of sludge dewaterability via the thermal hydrolysis anaerobic digestion mechanism based on moisture and organic matter interactions

The enhancement for sludge anaerobic digestion and dewaterability were investigated in sludge pretreated by microwave (MW) and its combined processes. The results showed that microwave and its combined processes can efficiently release soluble organic matter and thus enhance anaerobic digestion of sludge. The cumulative methane production in the test of the MW-H2O2-OH (0.2) process was increased by 13.34% compared with that of the control. The MW-H process was effective in improving sludge dewaterability, e.g., the capillary suction time (CST) at only 9.85S.

Download Full-text

Effects of thermal hydrolysis on organic matter solubilization and anaerobic digestion of high solid sludge

Chemical Engineering Journal ◽

10.1016/j.cej.2014.11.005 ◽

2015 ◽

Vol 264 ◽

pp. 174-180 ◽

Cited By ~ 149

Author(s):

Yonggang Xue ◽

Huajie Liu ◽

Sisi Chen ◽

Norbert Dichtl ◽

Xiaohu Dai ◽

...

Keyword(s):

Organic Matter ◽

Anaerobic Digestion ◽

Thermal Hydrolysis ◽

High Solid

Download Full-text

Characterization of organic matter in the thermal hydrolysis pretreated anaerobic digestion return liquor

Journal of Environmental Chemical Engineering ◽

10.1016/j.jece.2015.07.029 ◽

2015 ◽

Vol 3 (4) ◽

pp. 2631-2636 ◽

Cited By ~ 4

Author(s):

Abhinav Gupta ◽

John T. Novak ◽

Renzun Zhao

Keyword(s):

Organic Matter ◽

Anaerobic Digestion ◽

Thermal Hydrolysis

Download Full-text

Sludge minimization by disintegration at different wastewater treatment plants

Water Practice & Technology ◽

10.2166/wpt.2008.010 ◽

2008 ◽

Vol 3 (1) ◽

Author(s):

Luchien Luning ◽

Paul Roeleveld ◽

Victor W.M. Claessen

Keyword(s):

Organic Matter ◽

Wastewater Treatment ◽

Anaerobic Digestion ◽

Sewage Sludge ◽

New Technologies ◽

Wastewater Treatment Plants ◽

Treatment Plant ◽

Biological Degradation ◽

Ongoing Research ◽

Sludge Minimization

In recent years new technologies have been developed to improve the biological degradation of sewage sludge by anaerobic digestion. The paper describes the results of a demonstration of ultrasonic disintegration on the Dutch Wastewater Treatment Plant (WWTP) Land van Cuijk. The effect on the degradation of organic matter is presented, together with the effect on the dewatering characteristics. Recommendations are presented for establishing research conditions in which the effect of sludge disintegration can be determined in a more direct way that is less sensitive to changing conditions in the operation of the WWTP. These recommendations have been implemented in the ongoing research in the Netherlands supported by the National Institute for wastewater research (STOWA).

Download Full-text