scholarly journals Full scale vermicomposting and land utilisation of pulpmill solids in combination with municipal biosolids (sewage sludge)

2014 ◽  
Author(s):  
M. Quintern
Keyword(s):  
Sewage Sludge ◽  
Full Scale ◽  
Municipal Biosolids

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

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.

Efficiency of RO/NF membranes at the removal of veterinary antibiotics

2012 ◽  
Vol 65 (2) ◽  
pp. 317-323 ◽  
Author(s):  
D. Dolar ◽  
A. Vuković ◽  
D. Ašperger ◽  
K. Košutić
Keyword(s):  
Sewage Sludge ◽  
Synergistic Effect ◽  
Reverse Osmosis ◽  
Treated Wastewater ◽  
Antibiotic Residues ◽  
Veterinary Antibiotics ◽  
Aquaculture Feed ◽  
Municipal Biosolids ◽  
Land Disposal ◽  
High Level

The production of pharmaceuticals has increased rapidly during the last several decades as they have been used for the health of both humans and animals. Routes of environmental exposure include the release of treated wastewater, the land disposal of livestock manures and municipal biosolids (i.e. sewage sludge), as well as the use of medicated aquaculture feed. This study deals with application of reverse osmosis (RO) and nanofiltration (NF) membranes for removing of antibiotic residues (sulfamethoxazole, trimethoprim, ciprofloxacin, dexamethasone and febantel) and their mixture. According to the results obtained in this work the use of RO (LFC–1 and XLE) and the tight NF (NF90) membranes are recommended to achieve a high level of retention (>95%) of all selected veterinary antibiotics (VAs). Nanofiltration NF270, NF and HL membranes showed a lower rejection of individual components, but much higher in a mixture solution, due to the synergistic effect.

Evaluation of full scale thermal solidification processes implemented in Tokyo lightweight aggregate, slag and brick

2000 ◽  
Vol 41 (8) ◽  
pp. 69-76 ◽  
Author(s):  
N. Okuna ◽  
A. Yamada
Keyword(s):  
Sewage Sludge ◽  
Academic Research ◽  
Lightweight Aggregate ◽  
Full Scale ◽  
Raw Material ◽  
Research Subject ◽  
Engineering Process ◽  
Solidification Processes ◽  
Potential Alternative ◽  
Cement Manufacturing

Tokyo has an experience in operation of full-scale thermal solidification processes for around 10 years. They include artificial lightweight aggregates, slag, brick, and sludge fuel (dried by Carver Greenfield process). Many efforts were concentrated on improving the processes for the years. As a result, the thermal solidification of sewage sludge is no more academic research subject, but is a standardized engineering process. Anyof them are able to be locally implemented depending on specific requests. Among them, the brick seems to be the best choice from the viewpoint of economy. On the other hand, a potential alternative is that the sewage sludge could be served as raw material for Portland cement manufacturing process.

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