Results 31 to 40 of about 178,624 (294)

"Isolation and Identification of Bacteria Present in the Activated Sludge Unit, in the Treatment of Industrial Waste Water " [PDF]

Iranian Journal of Public Health, 2001
Activated sludge or extended aeration treatment involves a continous system where aerobic biological growths are mixed with waste water and then separated in a gravity clarifier.
MK Sharifi-Yazdi1, C Azimi1, MB Khalili   +2 more
doaj   +1 more source

Effect of ultrasonic, thermal and ozone pre-treatments on waste activated sludge solubilisation and anaerobic biodegradability [PDF]

, 2006
In order to enhance the efficiency of anaerobic digestion, the effects of ultrasounds, ozonation and thermal pre-treatment have been studied on waste activated sludge.
Alfonso, Barros, Bettini, Blyden, Bowyer, Cheung, Chodova, Chodova, Darmency, Darmency, Darmency, Diebold, Délye, Délye, Délye, Eberlein, Ernst, Foes, Foes, Fraga, Frey, Gadamski, Gasquez, Gawronski, Goloubinoff, Heap, Hirschberg, Hirschberg, Kelly, Kumata, Liu, Masabni, McNally, Mengistu, Naber, Páy, Reith, Rios, Rola, Salava, Sato, Schonfeld, Schwenger-Erger, Sibony, Smeda, Sommer, Stankiewicz, Thomzik, Trebst, Wang, Yerkes, Zhu   +51 more
core   +2 more sources

Statistically-Based Comparison of the Removal Efficiencies and Resilience Capacities between Conventional and Natural Wastewater Treatment Systems: A Peak Load Scenario [PDF]

, 2018
Emerging global threats, such as climate change, urbanization and water depletion, are driving forces for finding a feasible substitute for low cost-effective conventional activated sludge (AS) technology. On the other hand, given their low cost and easy
Charalambous, Panayiotis, Goethals, Peter, Ho, Long Tuan, López Gordillo, Ana Paulina, Thas, Olivier, Van Echelpoel, Wout   +5 more
core   +3 more sources

Hydrolase Production via Food Waste Fermentation and Its Application to Enhance Anaerobic Digestion of Sewage Sludge

Fermentation, 2023
In the present study, a novel strategy for the effective production of hydrolase via fermentation of food waste was developed to improve methane production from anaerobic digestion of waste activated sludge (WAS).
Xuedong Zhang, Ganghui Wang, Jian Dong, Min Chen, Yanhua He, He Liu, Yajie Li, Hongbo Liu   +7 more
doaj   +1 more source

Extracellular polymers of ozonized waste activated sludge

Water Science and Technology, 2001
Effect of ozonation on characteristics of waste activated sludge was investigated in the current study. Concentrations of cell-bound extracellular polymers (washed ECPs) did not change much upon ozonation, whereas the sum of cell-bound and soluble extracellular polymers (unwashed ECPs) increased with increasing ozone dose.
J C, Liu, C H, Lee, J Y, Lai, K C, Wang, Y C, Hsu, B V, Chang   +5 more
openaire   +2 more sources

Possibility of utilizing waste activated sludge as a renewable energy source [PDF]

E3S Web of Conferences
This paper gives results of a study of biofuel granules made from a waste activated sludge of wastewater treatment. A novel method to enhance waste activated sludge dewaterability with untreated and calcined water treatment sludge of thermal power plants
Iskhakova Regina, Soloveva Olga, Iskhakov Albert, Nurgaliev Arthur   +3 more
doaj   +1 more source

An evaluation of metal removal during wastewater treatment: The potential to achieve more stringent final effluent standards [PDF]

, 2011
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2011 Taylor & Francis.Metals are of particular importance in relation to water quality, and concern regarding the impact of these ...
Arundel J., Barnes D., Barth E. F., Birkett J. W., Brown H. G., Chen K. Y., Cheng M. H., D. Ziolko, Davis J. A., Eckenfelder W. W., Esmond S. E., Fatoki O. S., Gray N. F., Groombridge B., Hawksworth D. L., Henson M. C., J. N. Lester, Klein L. A., Koch C. M., Koch M., Landner L., Landner L., Lawson P. S., Le Quesne T., Lester J. N., Lester J. N., Lester J. N., Lester J. N., Lester J. N., Liu Y., M. D. Scrimshaw, Malaney G. W., Mowat A., Neufeld R. D., Neufeld R. D., O. V. Martin, Raposo J. C., Reid W., Roberts P., Rossin A. C., Rudd T., Rule K. L., Spath R., Stander L., Stasinakis A. S., Stonebrook H., Stover R. C., Takiguchi M., Tomlinson T. G., Verma M. M., Yeoman S.   +50 more
core   +1 more source

Comparison of bioindicator eukaryotes of activated sludge biocenoses on two water-treatment plants: a case study

Nova Biotechnologica et Chimica, 2017
Activated sludge biocenoses were compared on waste-water treatment plants in the city of Kazan, Russian Federation and the city of Teplice, Czech Republic.
Achmadulina Farida Y., Zakirov Rustem K., Balymova Elena S., Denisova Vera, Brovdyová Taťjána, Trögl Josef, Neruda Martin   +6 more
doaj   +1 more source

Stimulation of Lipid Extraction Efficiency from Sewage Sludge for Biodiesel Production through Hydrothermal Pretreatment

Energies, 2020
In this study, two types of sewage sludge (primary sludge and waste activated sludge) were hydrothermally treated at 125–250 °C to enhance the lipid extraction efficiency and obtain a higher biodiesel yield.
Jongkeun Lee, Oh Kyung Choi, Dooyoung Oh, Kawnyong Lee, Ki Young Park, Daegi Kim   +5 more
doaj   +1 more source

Improvement of anaerobic digestion of sewage mixed sludge using free nitrous acid and Fenton pre-treatment

Biotechnology for Biofuels, 2018
Background Recently, it has been indicated that free nitrous acid (FNA) and Fenton pre-treatment of waste activated sludge can enhance methane production in anaerobic digestion of waste activated sludge.
Seyed Mostafa Hallaji, Ali Torabian, Behnoush Aminzadeh, Soraya Zahedi, Nicky Eshtiaghi   +4 more
doaj   +1 more source