Roles of colloidal particles and soluble biopolymers in long-term performance and fouling behaviors of submerged anaerobic membrane bioreactor treating methanolic wastewater

2021 ◽  
pp. 125816
Author(s):  
Xueqin Lu ◽  
Chaoting Zheng ◽  
Guangyin Zhen ◽  
Yujie Tan ◽  
Yuhan Zhou ◽  
...  
Keyword(s):  
Membrane Bioreactor ◽  
Colloidal Particles ◽  
Anaerobic Membrane Bioreactor ◽  
Long Term Performance ◽  
Term Performance

Investigation of long-term operation and biomass activity in a membrane bioreactor system

2011 ◽  
Vol 63 (9) ◽  
pp. 1906-1912 ◽  
Author(s):  
Simos Malamis ◽  
Andreas Andreadakis ◽  
Daniel Mamais ◽  
Constantinos Noutsopoulos
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Extracellular Polymeric Substances ◽  
Operating Conditions ◽  
Term Operation ◽  
Solids Retention ◽  
Biomass Activity ◽  
Long Term Performance ◽  
Term Performance

The aim of this work was to evaluate the long-term performance of a Membrane Bioreactor (MBR) that operated continuously for 2.5 years and to assess membrane fouling and biomass activity under various operating conditions. Furthermore, a method for the characterisation of influent wastewater was developed based on its separation into various fractions. The MBR system operated at the solids retention times (SRT) of 10, 15, 20 and 33 days. The increase of SRT resulted in a decrease of the fouling rate associated with the reduction of extracellular polymeric substances. Moreover, the SRT increase resulted in a significant reduction of the Oxygen Uptake Rate (OUR) due to the lower availability of substrate and in a notable decrease of the maximum OUR since high SRT allowed the development of slower growing microorganisms. Biomass consisted of small flocs due to extensive deflocculation caused by intense aeration. Finally, the method developed for wastewater characterisation is straightforward and less time consuming than the usual method that is employed.

Long-term performance of a membrane bioreactor treating table olive processing wastewater

2015 ◽  
Vol 91 (8) ◽  
pp. 2253-2262 ◽  
Author(s):  
Sotiris I Patsios ◽  
Emmanouil H Papaioannou ◽  
Anastasios J Karabelas
Keyword(s):  
Membrane Bioreactor ◽  
Table Olive ◽  
Long Term Performance ◽  
Term Performance
Sign in / Sign up

Export Citation Format

Share Document