Investigation of backwashing effectiveness in membrane bioreactor (MBR) based on different membrane fouling stages
نویسندگان
چکیده
منابع مشابه
Study on Operational Conditions to Minimize Membrane Fouling in Membrane Bioreactor (MBR) System for Wastewater Treatment-Preliminary Pilot Tests
In this study, effect of antiscalant usage on minimizing of membrane fouling due to high water hardness during wastewater treatment tests run by a pilot-scale membrane bioreactor (MBR) system. The membranes used in these studies were Kubota flat sheet MBR membranes made from polyethylene with a pore size of 0.4 micrometer. Preliminary tests were carried out with tap water...
متن کاملMembrane Bioreactor (MBR) Technology for Wastewater Treatment and Reclamation: Membrane Fouling
The membrane bioreactor (MBR) has emerged as an efficient compact technology for municipal and industrial wastewater treatment. The major drawback impeding wider application of MBRs is membrane fouling, which significantly reduces membrane performance and lifespan, resulting in a significant increase in maintenance and operating costs. Finding sustainable membrane fouling mitigation strategies ...
متن کاملComparison of membrane foulants occurred under different sub-critical flux conditions in a membrane bioreactor (MBR).
Membrane fouling precludes the widespread application of membrane filtration system from treating wastewater and drinking water, and occurs even under sub-critical flux operations. Hence the characteristics and behavior of membrane foulants should be thoroughly investigated, so as to find ways to reduce membrane fouling in membrane bioreactors. The purpose of this study is to compare the membra...
متن کاملA triple fouling layers perspective on evaluation of membrane fouling under different scenarios of membrane bioreactor operation
One of the main factors affecting membrane fouling in MBRs is operational conditions. In this study the influence of aeration rate, filtration mode, and SRT on hollow fiber membrane fouling was investigated using a triple fouling layers perspective. The sludge microbial population distribution was also determined by PCR method. Through various applied operational scenarios the optimal condition...
متن کاملMicrobial Transformation of Biomacromolecules in a Membrane Bioreactor: Implications for Membrane Fouling Investigation
BACKGROUND The complex characteristics and unclear biological fate of biomacromolecules (BMM), including colloidal and soluble microbial products (SMP), extracellular polymeric substances (EPS) and membrane surface foulants (MSF), are crucial factors that limit our understanding of membrane fouling in membrane bioreactors (MBRs). FINDINGS In this study, the microbial transformation of BMM was...
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ژورنال
عنوان ژورنال: Bioresource Technology
سال: 2018
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2018.08.111