scholarly journals Relationship between the Characteristics of Cationic Polyacrylamide and Sewage Sludge Dewatering Performance in a Full-Scale Plant

2012 ◽  
Vol 16 ◽  
pp. 409-417 ◽  
Author(s):  
Jiawei Wang ◽  
Chen Chen ◽  
Qiong Gao ◽  
Tong Li ◽  
Fenfen Zhu
Keyword(s):  
Sewage Sludge ◽  
Full Scale ◽  
Sludge Dewatering ◽  
Cationic Polyacrylamide

A Full-Scale Demonstration Food Waste and Sewage Sludge Co-Digestion Project at the Joint Water Pollution Control Plant

2015 ◽  
Vol 2015 (15) ◽  
pp. 3796-3806
Author(s):  
Robert Morton ◽  
James Ecker ◽  
Robert Hickey ◽  
Daniel Gary ◽  
Andy Lee ◽  
...  
Keyword(s):  
Water Pollution ◽  
Sewage Sludge ◽  
Food Waste ◽  
Pollution Control ◽  
Control Plant ◽  
Full Scale ◽  
Water Pollution Control

Effect of adding alum sludge from water treatment plant on sewage sludge dewatering

2016 ◽  
Vol 4 (1) ◽  
pp. 746-752 ◽  
Author(s):  
Jun Li ◽  
Liu Liu ◽  
Jun Liu ◽  
Ting Ma ◽  
Ailan Yan ◽  
...  
Keyword(s):  
Water Treatment ◽  
Sewage Sludge ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Sludge Dewatering ◽  
Alum Sludge

scholarly journals Microbiota of anaerobic digesters in a full-scale wastewater treatment plant

2017 ◽  
Vol 43 (3) ◽  
pp. 53-60 ◽  
Author(s):  
Piotr Świątczak ◽  
Agnieszka Cydzik-Kwiatkowska ◽  
Paulina Rusanowska
Keyword(s):  
Microbial Community ◽  
Sewage Sludge ◽  
Methane Production ◽  
Treatment Plant ◽  
Full Scale ◽  
Successful Implementation ◽  
Anaerobic Digesters ◽  
Syntrophic Bacteria ◽  
The Stability ◽  
Microbial Groups

AbstractAnaerobic digestion is an important technology for the bio-based economy. The stability of the process is crucial for its successful implementation and depends on the structure and functional stability of the microbial community. In this study, the total microbial community was analyzed during mesophilic fermentation of sewage sludge in full-scale digesters.The digesters operated at 34–35°C, and a mixture of primary and excess sludge at a ratio of 2:1 was added to the digesters at 550 m3/d, for a sludge load of 0.054 m3/(m3·d). The amount and composition of biogas were determined. The microbial structure of the biomass from the digesters was investigated with use of next-generation sequencing.The percentage of methanogens in the biomass reached 21%, resulting in high quality biogas (over 61% methane content). The abundance of syntrophic bacteria was 4.47%, and stable methane production occurred at a Methanomicrobia to Synergistia ratio of 4.6:1.0. The two most numerous genera of methanogens (about 11% total) wereMethanosaetaandMethanolinea, indicating that, at the low substrate loading in the digester, the acetoclastic and hydrogenotrophic paths of methane production were equally important. The high abundance of the orderBacteroidetes, including the classCytophagia(11.6% of all sequences), indicated the high potential of the biomass for efficient degradation of lignocellulitic substances, and for degradation of protein and amino acids to acetate and ammonia.This study sheds light on the ecology of microbial groups that are involved in mesophilic fermentation in mature, stably-performing microbiota in full-scale reactors fed with sewage sludge under low substrate loading.

The Concentration and the Abatement Strategy of Organic Contaminants in Sewage Sludge Dewatering

2011 ◽  
Vol 356-360 ◽  
pp. 1495-1499
Author(s):  
Jie Yu ◽  
Guo Di Zheng ◽  
Tong Bin Chen
Keyword(s):  
Sewage Sludge ◽  
Organic Contaminants ◽  
Environmental Risks ◽  
Future Research ◽  
Sludge Dewatering ◽  
Sludge Disposal ◽  
Secondary Pollution ◽  
Pollution Problem ◽  
Safety And Environment ◽  
Abatement Strategy

Sludge agriculture application in future will be one of the main sewage sludge disposal ways in China. To ensure safety and environment of sewage sludge agriculture application, except to strengthen the research of sludge heavy metal, pathogen outside the organic contaminants will be one of the focuses of the future research, especially to strengthen the PAHs and NP/NPE. In order to reduce the environmental risks of sludge agriculture application, using biological aerobic fermentation processing technology treatment sludge can effectively reduce the organic contaminants, depress secondary pollution problem, which sewage sludge brings.

Self-recycling of sewage sludge as a coagulant and mechanism in sewage sludge dewatering

2020 ◽  
Vol 22 (6) ◽  
pp. 1867-1876
Author(s):  
Jiahuan Wu ◽  
Tao Lu ◽  
Guang Yang ◽  
Wei Meng ◽  
Haoran Yuan ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Sludge Dewatering
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