Solids and Hydraulic Retention Time Effect on N2 O Emission from Moving-Bed Membrane Bioreactors
نویسندگان
چکیده
منابع مشابه
High retention membrane bioreactors: challenges and opportunities.
Extensive research has focussed on the development of novel high retention membrane bioreactor (HR-MBR) systems for wastewater reclamation in recent years. HR-MBR integrates high rejection membrane separation with conventional biological treatment in a single step. High rejection membrane separation processes currently used in HR-MBR applications include nanofiltration, forward osmosis, and mem...
متن کاملEffect of solids retention time on Microthrix parvicella growth
The objective of this study was to evaluate the effect of solids retention time (SRT) on M. parvicella growth and to calculate growth kinetic parameters of this filamentous species. Bench-scale continuous-flow experiments showed that M. parvicella growth can be significantly suppressed at an SRT of lower than 5.7 d for temperatures of between 14 and 18oC. According to the continuous-flow experi...
متن کاملMicrobial behaviors involved in cake fouling in membrane bioreactors under different solids retention times.
Biomass characteristics and membrane performances in the MBRs operated at a high flux of 30 L/m(2) h under different SRTs (10, 30 days, and infinity) were monitored. Results showed that more serious cake-fouling happened in the SRT-infinity MBR, which correlated with the activated sludge characteristics such as smaller floc size and greater EPS amount. DGGE analysis indicated that the microbial...
متن کاملInfluence of membrane pore size and material on membrane fouling in membrane bioreactors operated under different sludge retention time
Membrane bioreactors (MBRs) have several advantages such as high-quality effluent, small footprint and less sludge production over conventional activated sludge systems, and are therefore considered to be a promising technology for future wastewater treatment. For wider use of MBRs, however, high-energy consumption in the operation of MBRs, mainly attributed to membrane fouling, needs to be add...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Engineering & Technology
سال: 2018
ISSN: 0930-7516
DOI: 10.1002/ceat.201700377