Integration of Microelectrolysis cell (MEC) with Anaerobic Fluidized Membrane Bioreactor (AnFMBR) for wastewater treatment and reuse

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Anaerobic Membrane Bioreactors (AnMBRs) combine the advantages of anaerobic processes and MBR technology to increase effluent quality and recover energy. However, these systems are associated with several operational challenges such as membrane fouling and loss of dissolved methane which increase operation and energy expenses. In this study, a new system configuration was developed that combines an anaerobic fluidized membrane bioreactor (AnFMBR) with a Microbial Electrolysis Cell (MEC) and tested for the treatment of synthetic wastewater. The effects of electrochemical reactions in the AnFMBR-MEC were examined in terms of Chemical Oxygen Demand (COD) removal, biogas generation, fouling potential, and microbial community characteristics. The startup of the AnFMBR-MEC system was 25 days faster than the AnFMBR alone. While both reactors exhibited a high COD removal (~90%), the new AnFMBR-MEC system enhanced the average methane yield by 56%. In addition, the new system reduced membrane fouling with a maximum transmembrane pressure value nearly 6.5 folds lower than that exhibited by the AnFMBR. Similar bacterial community existed in both reactors but with different abundance and localization. In the AnFMBR-MEC, Direct Interspecies Electron Transfer was possibly the dominant route for acetate consumption due to the abundance of Geobacter and Methanosarcina on granular activated carbon and in suspension. Taken together, the new AnFMBR-MEC system provides a promising technology for recovery of resources (reclaimed water for non-potable reuse and energy) from wastewater.

روابط وملفات

التعريف والنوع

رقم الوثيقة

ed57efe5-917a-47a1-8310-7af3b133c178

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

2026245_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"Mutasem El-Fadel ","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Olga Samir El Kik","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Pascal E. Saikaly ","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Integration of Microelectrolysis cell (MEC) with Anaerobic Fluidized Membrane Bioreactor (AnFMBR) for wastewater treatment and reuse

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

Show simple item record dc.contributor.advisor El-Fadel, Mutasem dc.contributor.author El Kik, Olga dc.date.accessioned 2020-09-23T07:03:48Z dc.date.available 2020-09-23T07:03:48Z dc.date.issued 2020 dc.date.submitted 2020-05-18 dc.identifier.uri http://hdl.handle.net/10938/21973 dc.description Mutasem El-Fadel (Advisor), Pascal Saikaly, Ibrahim Alameddine dc.description.abstract Anaerobic Membrane Bioreactors (AnMBRs) combine the advantages of anaerobic processes and MBR technology to increase effluent quality and recover energy. However, these systems are associated with several operational challenges such as membrane fouling and loss of dissolved methane which increase operation and energy expenses. In this study, a new system configuration was developed that combines an anaerobic fluidized membrane bioreactor (AnFMBR) with a Microbial Electrolysis Cell (MEC) and tested for the treatment of synthetic wastewater. The effects of electrochemical reactions in the AnFMBR-MEC were examined in terms of Chemical Oxygen Demand (COD) removal, biogas generation, fouling potential, and microbial community characteristics. The startup of the AnFMBR-MEC system was 25 days faster than the AnFMBR alone. While both reactors exhibited a high COD removal (~90%), the new AnFMBR-MEC system enhanced the average methane yield by 56%. In addition, the new system reduced membrane fouling with a maximum transmembrane pressure value nearly 6.5 folds lower than that exhibited by the AnFMBR. Similar bacterial community existed in both reactors but with different abundance and localization. In the AnFMBR-MEC, Direct Interspecies Electron Transfer was possibly the dominant route for acetate consumption due to the abundance of Geobacter and Methanosarcina on granular activated carbon and in suspension. Taken together, the new AnFMBR-MEC system provides a promising technology for recovery of resources (reclaimed water for non-potable reuse and energy) from wastewater. dc.language.iso en dc.subject Microbial Electrolysis Cell dc.subject Water Reuse dc.subject Resource Recovery dc.subject Anaerobic Fluidized Membrane Bioreactor

إشراف وإعداد

الإشراف

Mutasem El-Fadel , Pascal E. Saikaly

الإعداد

Olga Samir El Kik

الاقتباسات الببليوغرافية