Abstract
Abstract This paper presents an alternative method for nitrogen removal using modified membrane reactor. A novel Anammox submerged membrane electro-bioreactor (Anammox-SMEBR) was developed to enhance nitrogen removal from municipal wastewater. At lab scale a comparison between continuous flow MBE and Anammox-SMEBR reactors was conducted. The novel reactor removed nitrate and ammonia by over 95% and 97%, respectively. The removal was due to subsequent application of aerobic and anoxic conditions in the same reactor. On other hand, MBR was able to remove ammonia by 60 to 76%, while nitrates were produced. Simultaneously, COD and phosphorous removals in MBR were also lower than in Anammox-SMEBR.
Highlights
The main goal of this study was to examine nitrogen, ammonia, removal in a novel submerged membrane electro bioreactor for anammox bacteria
Considering that it was the first application of anammox into membrane electrobioreactor, the additional objectives were formed: a) conduct a comparative study between membrane bioreactors (MBRs) and Anammox-submerged membrane electro-bioreactor (SMEBR) with respect to removal of ammonia and nitrates; b) conduct bioaugmentation of anammox bacteria
A hybrid Anammox-SMEBR system permitted for simultaneous activities of anammox, nitrifiers and denitrifiers in the same reactor
Summary
The main goal of this study was to examine nitrogen, ammonia, removal in a novel submerged membrane electro bioreactor for anammox bacteria. The central objective for wastewater treatment plants is to remove BOD and nutrients such as ammonia, nitrate and phosphorous to satisfactory level. Conventional membrane bioreactors (MBRs) are unable to remove nutrients to an acceptable level without additional operation units. A membrane bioreactor (MBR) is the combination of activated sludge treatment and micro/ultra-filtration membranes applied to separate suspended solids from the liquid phase [1]. There is a membrane-fouling problem in MBR system due to organic colloids and extracellular polymer substances (EPS), which decreases the performance and increases the total cost of the system [3]. If total nitrogen removal is considered by biological means, an additional operation unit is constructed having anoxic conditions for nitrates denitrification
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
