Results 31 to 40 of about 21,036 (165)
Phosphorus recovery from calcium phosphate enriched activated sludge [PDF]
E3S Web of ConferencesThis study explores the potential of activated sludge from wastewater treatment plants (WWTP) as an alternative source of phosphorus, vital for fertilisers and other products, compared to large-scale phosphorus mining.
Maulidiany Nopa Dwi +1 more
doaj +1 more source
E3S Web of Conferences, 2018 Ozonation of activated sludge in the present of titanium dioxide (TiO2) as catalyst to enhance the production of hydroxyl radical was evaluated in comparison to the sole ozonation process.
Mohd Sarif S.F.Z. +5 more
doaj +1 more source
Journal of Water and Environment Technology, 2020 Excess sludge reduction is a central challenge in wastewater treatment, requiring a cost-effective technology. Here, we report the pilot-scale implementation of two Modified Ludzack-Ettinger (MLE) processes with and without a high-pressure jet device ...
Hiroyuki Yoshino +4 more
doaj +1 more source
Tecnología y ciencias del agua, 2017 Qin, Y., Guo, J., & Fang, F. (March-April, 2017). Comparison on nitrosation and anaerobic ammonium oxidation between activated sludge and biofilm from an autotrophic nitrogen removal SBBR.
Qin Yu, Guo Jinsong, Fang Fang
doaj +1 more source
Side-stream sludge treatment using free ammonia for reducing sludge production [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2019 Much attention has been paid to reducing of excess sludge production in the activated sludge process, due to high treatment and disposal costs. In this study, an innovative approach for achieving sludge reduction, which featured recirculating a portion ...
Song Kang +4 more
doaj +1 more source
Energies, 2021 The aim of the conducted research was to assess the effectiveness of the nitrification process, at different concentrations of ammonium nitrogen, in biologically treated wastewater in one of the largest municipal and industrial wastewater treatment ...
Iwona Beata Paśmionka +7 more
doaj +1 more source
Enzyme activities in activated sludge flocs [PDF]
Applied Microbiology and Biotechnology, 2007 This study quantified the activities of enzymes in extracellular polymeric substances (EPS) and in pellets. Seven commonly adopted extraction schemes were utilized to extract from aerobic flocs the contained EPS, which were further categorized into loosely bound (LB) and tightly bound (TB) fractions.
Yu, Guang-Hui +3 more
openaire +2 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
Isolasi dan identifikasi mikroorganisme dalam lumpur aktif pengolahan limbah industri kulit
Majalah Kulit, Karet, dan Plastik, 2001 The aim of this research is to isolate and to identify the microorganisms that grow as activated sludge used in the tannery wastewater treatment plant. The result shows that the protozoa in the activated sludge were β mesosaprobik protozoa.
Prayitno +3 more
doaj +1 more source
Use of Lecane rotifers for limiting Thiothrix filamentous bacteria in bulking activated sludge in a dairy wastewater treatment plant [PDF]
Archives of Biological Sciences, 2014 Excessive growth of filamentous bacteria is a serious problem in many dairy wastewater treatment plants (WWTPs). The objective of the study was to determine whether Lecane inermis rotifers were able to reduce the density of Thiothrix bacteria in
Kowalska Ewa +2 more
doaj +1 more source