comparison in reduction of solids, turbidity and ec between nanofiltration membrane bioreactor and activated sludge
Authors
abstract
hospital wastewater has special importance since having pathogens, radioactive materials, pharmaceutical wastes and heavy metals. removing them into environment without any treatment may cause serious problems for the public health. membrane biological reactor is the combination of the activated sludge and membrane filters. this research has investigated the performance of the nano-filtration in a membrane biological reactor (nf-mbr) in the pilot scale in comparison to the activated sludge system which is very common in hospitals and has been utilized in the babol hospital`s wastewater treatment plant. nf-mbr pilot make the chance for the biological process to act in long srt (in this case 62 days). therefore the mlss concentration in the aeration tank reach to over 6000 mg/l. tds and ec removal is obtained 60% and turbidity and tss removal is obtained up to 99%. the advantageous of this system were having no sludge removal in the experimental period, no chemical backwash of the nano-membranes and excellent and nearly constant quality of the effluent.
similar resources
Comparison in reduction of solids, turbidity and EC between nanofiltration membrane bioreactor and activated sludge
Hospital wastewater has special importance since having pathogens, radioactive materials, pharmaceutical wastes and heavy metals. Removing them into environment without any treatment may cause serious problems for the public health. Membrane Biological Reactor is the combination of the activated sludge and membrane filters. This research has investigated the performance of the Nano-Filtration i...
full textComparison in reduction of solids, turbidity and EC between nanofiltration membrane bioreactor and activated sludge
Hospital wastewater has special importance since having pathogens, radioactive materials, pharmaceutical wastes and heavy metals. Removing them into environment without any treatment may cause serious problems for the public health. Membrane Biological Reactor is the combination of the activated sludge and membrane filters. This research has investigated the performance of the Nano-Filtration i...
full textComparison and Analysis of Membrane Fouling between Flocculent Sludge Membrane Bioreactor and Granular Sludge Membrane Bioreactor
The goal of this study is to investigate the effect of inoculating granules on reducing membrane fouling. In order to evaluate the differences in performance between flocculent sludge and aerobic granular sludge in membrane reactors (MBRs), two reactors were run in parallel and various parameters related to membrane fouling were measured. The results indicated that specific resistance to the fo...
full textThermophilic Aerobic Digestion of Activated Sludge; Reduction of Solids and Pathogenic Microorganisms
In the temperature range of 10 to 80 ºC and in a batch digester, a typical activated sludge was digested aerobically. Reaction rate constants were determined by measuring the amounts of volatiles removed from the suspended solids at different time intervals during the process. The maximum value of the reaction rate constant (0.45 d-1) occurred in the temperature...
full textComparison Study between Integrated Fixed Film Activated Sludge (ifas), Membrane Bioreactor (mbr) and Conventional Activated Sludge (as) Processes
Comparison study is required to evaluate the treatment efficiency of three alternative secondary treatment processes. These Processes are Integrated Fixed-film Activated Sludge (IFAS), Membrane Bioreactor (MBR) and Conventional Activated Sludge (AS). This study is required for a new wastewater treatment plant. The characteristics of the influent domestic wastewater for the proposed plant were m...
full textMy Resources
Save resource for easier access later
Journal title:
international journal of nano dimensionجلد ۵، شماره ۱، صفحات ۲۱-۲۶
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023