Results 11 to 20 of about 1,804,647 (233)
Alkaline and acid solubilisation of waste activated sludge
Water Science and Technology, 2021 The influence of acidic and alkaline conditions on the solubilisation process of waste activated sludge (WAS) was investigated using HCl and NaOH at pH 2, 10, 11 and 12.
Tales Abreu Tavares de Sousa +6 more
doaj +6 more sources
Thermal Disintegration of Waste-Activated Sludge
EnergiesThe effective management of waste-activated sludge (WAS) presents a significant challenge for wastewater treatment plants (WWTPs), primarily due to the sludge’s high content of organic matter, pathogens, and hazardous substances such as heavy metals.
Katarzyna Bułkowska +1 more
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Chemical Inhibitors for Biomass Yield Reduction in Activated Sludge [PDF]
, 1999 Increasing legislation and rising treatment and disposal costs have promoted optimisation of the activated sludge process to encompass reduction of waste biomass.
Mayhew, Maxine Eleanor
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Visualization of Polyhydroxyalkanoate Accumulated in Waste Activated Sludge. [PDF]
Environ Sci Technol, 2023 Polyhydroxyalkanoates (PHAs) can be produced with municipal waste activated sludge from biological wastewater treatment processes. Methods of selective fluorescent staining with confocal laser scanning microscopy (CLSM) were developed and optimized to evaluate the distribution of PHA storage activity in this mixed culture activated sludge microbial ...
Pei R +5 more
europepmc +5 more sources
The fate of endocrine disrupting chemicals during activated sludge treatment [PDF]
, 2010 A significant route for Endocrine disrupting chemicals (EDCs) such as natural and synthetic estrogens and nonylphenolics to enter the environment is via sewage treatment.
Bagnall, John Peter
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CO-conditioning and dewatering of chemical sludge and waste activated sludge [PDF]
Water Research, 2001 The conditioning and dewatering behaviors of chemical and waste activated sludges from a tannery were studied. Capillary suction time (CST), specific resistance to filtration (SRF), and bound water content were used to evaluate the sludge dewatering behaviors. Zeta potentials were also measured. Experiments were conducted on each sludge conditioned and
Chang, G. R., Liu, J. C., Lee, D. J.
openaire +3 more sources
BMC Biotechnology, 2019 Background Recently, it has been indicated that anaerobic co-digestion of waste activated sludge with other waste streams at wastewater treatment plants is a promising strategy for enhancing methane production and materials recovery. The enhanced methane
Seyed Mostafa Hallaji +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.
Xin Tian +7 more
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Reaktor, 2017 Steady-state behavior of activated sludge in phenolic waste water treatment was observed and theoretically considered. The apparatus used in this experiment was a continuous perfect mixing tank where activated sludge was withdraw continuosly and auto ...
B. T. Basuki
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Enzyme activity of waste activated sludge extracts
Water Science and Technology, 2019 AbstractWastewater treatment and generated biological sludge provide an alternative source of enzymes to conventional industrial production methods. Here, we present a protocol for extracting enzymes from activated sludge using ultrasonication and surfactant treatment.
Liu, Z, Smith, SR
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