Advanced Wastewater Recycling and Phosphorus Recovery using Membrane Bioreactor and Magnesium Carbonate-based Pellets
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University of Cincinnati / OhioLINK
2020
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=ucin160199251765065 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-ucin1601992517650652021-08-03T07:16:22Z Advanced Wastewater Recycling and Phosphorus Recovery using Membrane Bioreactor and Magnesium Carbonate-based Pellets Eghombi, Elvis A. Environmental Engineering Municipal wastewater EBPR Wastewater reuse MgCO3 Pellets MBR Phosphorus The scarcity of potable water is becoming a global concern as the quality of drinking water sources faces enormous pressure from anthropogenic pollution. In urban areas, wastewater released form homes, businesses, and industries is collected and treated in municipal wastewater treatment facilities before discharge into streams and lakes, which are drinking water sources. Most wastewater treatment plants use conventional activated sludge (CSA) process during treatment. However, these plants are major point sources of pollution of the environment because of their inability to sufficiently remove nutrients, pathogens, and micro pollutants (pharmaceuticals and personal care products) from wastewater. The purpose of this study was to use MBR technology in combination with MgCO3 pellets column to address some of the challenges faced by CAS treatment plants and to produce an environmentally friendly and recyclable effluent free of particles, pathogen and low in nutrient concentration. The study also aimed at employing the technology to enhance the recovery and removal of P through EBPR and MgCO3 pellets from Municipal wastewater and to reuse it (P recovered) as an alternative for natural P reserve, which is currently under depletion. This technology achieved the following pollutant removal efficiencies: TSS > 99.9%, Fecal coliform > 99.999%, COD = 97.8%, TN = 76.3% and TP = 84.6% .The influence of EBPR was equally remarkable in P release during the experiment, where P concentration in the MgCO3 column's influent was increased, leading to a maximum adsorption capacity of 12.8 mg P/g MgCO3. Although the MBR + Ethanol + MgCO3 couple was effective in municipal wastewater treatment, membrane biofouling remains a barrier that significantly reduced MBR efficiency and smooth operation. 2020 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin160199251765065 http://rave.ohiolink.edu/etdc/view?acc_num=ucin160199251765065 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Environmental Engineering Municipal wastewater EBPR Wastewater reuse MgCO3 Pellets MBR Phosphorus |
| spellingShingle |
Environmental Engineering Municipal wastewater EBPR Wastewater reuse MgCO3 Pellets MBR Phosphorus Eghombi, Elvis A. Advanced Wastewater Recycling and Phosphorus Recovery using Membrane Bioreactor and Magnesium Carbonate-based Pellets |
| author |
Eghombi, Elvis A. |
| author_facet |
Eghombi, Elvis A. |
| author_sort |
Eghombi, Elvis A. |
| title |
Advanced Wastewater Recycling and Phosphorus Recovery using Membrane Bioreactor and Magnesium Carbonate-based Pellets |
| title_short |
Advanced Wastewater Recycling and Phosphorus Recovery using Membrane Bioreactor and Magnesium Carbonate-based Pellets |
| title_full |
Advanced Wastewater Recycling and Phosphorus Recovery using Membrane Bioreactor and Magnesium Carbonate-based Pellets |
| title_fullStr |
Advanced Wastewater Recycling and Phosphorus Recovery using Membrane Bioreactor and Magnesium Carbonate-based Pellets |
| title_full_unstemmed |
Advanced Wastewater Recycling and Phosphorus Recovery using Membrane Bioreactor and Magnesium Carbonate-based Pellets |
| title_sort |
advanced wastewater recycling and phosphorus recovery using membrane bioreactor and magnesium carbonate-based pellets |
| publisher |
University of Cincinnati / OhioLINK |
| publishDate |
2020 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=ucin160199251765065 |
| work_keys_str_mv |
AT eghombielvisa advancedwastewaterrecyclingandphosphorusrecoveryusingmembranebioreactorandmagnesiumcarbonatebasedpellets |
| _version_ |
1719458123135057920 |