Efficient Recovery of Organic Matter from Municipal Wastewater by a High-Rate Membrane Bioreactor Equipped with Flat-Sheet Ceramic Membranes

Rocco, Michael Joseph; Hafuka, Akira; Tsuchiya, Toru; Kimura, Katsuki

doi:10.3390/membranes13030300

Cited by 6 publications

(2 citation statements)

References 30 publications

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“…The process can remove up to 99% of organic matter, suspended solids, and pathogens, which makes it an excellent choice for areas with strict water quality standards. The MBR process also removes nutrients such as nitrogen and phosphorus, which can cause eutrophication in water bodies if discharged untreated [16,17].…”

Section: 2membrane Bioreactor (Mbr) Processmentioning

confidence: 99%

Municipal Wastewater Treatment Technologies in Malaysia: A Short Review

Kristanti

Seng

Kumar³

et al. 2023

Ind. Domest. Waste Manag.

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The aim of this study was to evaluate different municipal wastewater treatment technologies for commercial use and develop an optimized system for a case study plant and future plant designs. Municipal wastewater, classified as a low-strength waste stream, can be treated using aerobic and anaerobic reactor systems or a combination of both. Aerobic systems are suitable for low-strength wastewaters, while anaerobic systems are suitable for high-strength wastewaters. Malaysia has actively implemented various wastewater treatment technologies to address the increasing demand for clean water and reduce environmental pollution. Some commonly used technologies in Malaysia include Activated Sludge Process (ASP), Membrane Bioreactor (MBR), and Moving Bed Biofilm Reactor (MBBR). These technologies show promise in removing emerging pollutants, such as pharmaceuticals and personal care products, which are not effectively eliminated by conventional treatment methods. Additionally, Malaysia could consider investing in renewable energy sources like solar and wind to power wastewater treatment plants, thereby reducing reliance on non-renewable energy and supporting sustainable development. It is also important to emphasize continued public awareness and education initiatives to promote responsible wastewater disposal practices and environmental stewardship.

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Section: 2membrane Bioreactor (Mbr) Processmentioning

confidence: 99%

Municipal Wastewater Treatment Technologies in Malaysia: A Short Review

Kristanti

Seng

Kumar³

et al. 2023

Ind. Domest. Waste Manag.

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“…The influence of the collaboration between aquatic humic materials and the AOM coming from microcystis aeruginosa was studied on the membrane fouling of a ceramic MF [ 21 ]. A flat-sheet ceramic membrane was applied to municipal wastewater treatment by a high-rate membrane bioreactor for competent recovery of organic substances [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Role of Titanium Dioxide-Immobilized PES Beads in a Combined Water Treatment System of Tubular Alumina Microfiltration and PES Beads

Hong,

Park,

Park

2023

Membranes

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The membrane process has a limit to the decay of various pollutants in water. To improve the problem, the roles of backwashing media and titanium dioxide (TiO2) photocatalyst-immobilized-polyethersulfone (PES) beads’ concentration were investigated in a combined system of tubular alumina MF and the PES beads for advanced drinking water treatment. The space between the outside of the MF membrane and the module inside was filled with the PES beads. UV at a wavelength of 352 nm was irradiated from outside of the acryl module. A quantity of humic acid and kaolin was dissolved in distilled water for synthetic water. Water or air intermittent backwashing was performed outside to inside. The membrane fouling resistance after 3 h process (Rf,180) was minimum at 30 g/L of the PES beads for water backwashing, and at 40 g/L for air backwashing when increasing the PES beads from 0 to 50 g/L. The irreversible membrane fouling resistance after physical cleaning (Rif) was at the bottom at 5 g/L of the PES beads for water backwashing, which was 3.43 times higher than minimal at 40 g/L of the PES beads for air backwashing. The treatment effectiveness of turbidity increased when increasing the PES beads’ concentration from 0 to 50 g/L; however, it reached a maximum at 98.1% at 40 g/L and 99.2% at 50 g/L for water and air backwashing, respectively. The treatment effectiveness of UV254 absorbance, which was dissolved organic matter (DOM), increased dramatically when increasing the PES beads; however, it reached a peak of 83.0% at 40 g/L and 86.0% at 50 g/L for water and air backwashing, respectively. Finally, the best PES beads’ concentration was 20~30 g/L to minimize the membrane fouling; however, it was 50 g/L to remove pollutants effectively. The water backwashing was better than the air at treating DOM; however, the air backwashing was more effective than the water at removing turbid matter and reducing membrane fouling.

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