The feasibility of nanofiltration membrane bioreactor (NF-MBR)+reverse osmosis (RO) process for water reclamation: Comparison with ultrafiltration membrane bioreactor (UF-MBR)+RO process

Tay, Ming Feng; Liu, Chang; Cornelissen, Emile; Wu, Bing; Chong, Tzyy Haur

doi:10.1016/j.watres.2017.11.013

Cited by 102 publications

(35 citation statements)

References 54 publications

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“…Kuntyi et al [24] explained that the characteristics of nanomaterials, like high reactivity and a high degree of functionalization, large specific surface area, are making these suitable for wastewater treatment and desalination of saline water. The results of Tay et al [25] revealed that the NF-MBR achieved superior quality permeate because of biodegradation and high rejection capacity of the NF membrane, leading to lower fouling rates.…”

Section: Discussionmentioning

confidence: 99%

Nanofiltration as a cost-saving desalination process

et al. 2019

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The water is a basic need for life including human beings, animals, plants, and microbial life. Although almost 75% of globe is covered by water in the form of oceans, only a small percentage of water is usable by living beings due to various salt content, pathogens, and contaminants. Good-quality water is highly scarce in dry regions of the world like Gulf Cooperation Council, South Asian and African countries. It is believed that the limited water supplies of water may worsen due to the inception of climatic changes ahead. The only alternative source is desalination of seawater/saline water. The traditional desalination technology is improving due to introduction of nanotechnologies like nanofiltration. The present studies were conducted at the research farm of Ministry of Municipalities and Environment (MME), Doha Qatar for 3 years (2016-2018). RO and nanofiltration plants were procured and installed at the research farm of MME. Electricity consumption was recorded, and quality of various types of water: feed water, product water, and brine water, was regularly monitored. The results of the study indicated that nanofiltration desalination process proved as effective as the RO but consumed 29% lesser energy. Therefore, the cost of water production was lessened by 29%, thus making the desalination technology as cost-saving and feasible.

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Section: Discussionmentioning

confidence: 99%

Nanofiltration as a cost-saving desalination process

et al. 2019

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“…HR‐MBRs enable the efficiency of wastewater treatment reaching up to drinking water quality with only one treatment step or discharge of the effluent to sensitive areas 3. There are three different HR‐MBRs studied in the literature, i.e., NF‐MBR (MBR using a nanofiltration membrane instead of the MF/UF membrane), OMBR (MBR using forward osmosis membrane instead of MF/UF membrane), and membrane distillation bioreactor (MDBR, MBR using a distillation membrane instead of MF membrane) 5. It has been reported that the flux obtained in the studies with NF‐MBR is very low, and while the salt in salty water circulated in the membrane module, in OMBR accelerates the increase in salt concentration in the activated sludge by diffusion, which is one of the operating restrictions of HR‐MBRs.…”

Section: Introductionmentioning

confidence: 99%

Mass and Heat Transfer Coefficients in a Thermophilic Membrane Distillation Bioreactor

et al. 2021

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The mass and heat transfer mechanisms of the membrane distillation bioreactor (MDBR) system used for hospital wastewater treatment were determined. The initial flux and balance flux of the system were determined. The total mass transfer resistance calculated for the system increased by 72 % when the system reached equilibrium. Considering the temperature polarization coefficient, it is clear that the system was controlled by mass resistance.

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“…It has proven to be an effective method for the removal of a wide variety of contaminants from wastewater. Some studies concluded that an integrated system of MBR-NF/RO could be considered as a good alternative for the recovery and reuse of treated wastewater for irrigation [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Exclusion of Estrogenic and Androgenic Steroid Hormones from Municipal Membrane Bioreactor Wastewater Using UF/NF/RO Membranes for Water Reuse Application

Aziz

Ojumu

2020

Membranes

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In the context of water scarcity, domestic secondary effluent reuse may be an option as a reliable source for alleviating acute water shortage. The increasing risks linked with the presence of natural steroid hormones and many emerging anthropogenic micropollutants (MPs) passing through municipal wastewater treatment works (MWWTWs) are of concern for their endocrine-disrupting activities. In this study, domestic wastewater treated by a full-scale membrane bioreactor (MBR) at an MWWTW in the Western Cape Province, South Africa, was used directly as the influent to a reverse osmosis (RO) pilot plant for the removal of selected natural steroid hormones 17β-estradiol (E2) and testosterone (T) as a potential indirect water recycling application. Estrogenicity and androgenicity were assessed using the enzyme-linked immunosorbent assays (ELISA) and the recombinant yeast estrogen receptor binding assays (YES). The influent pH and flux did not influence the rejection of E2 and T, which was most likely due to adsorption, size exclusion, and diffusion simultaneously. RO and nanofiltration (NF) exhibited excellent removal rates (>95%) for E2 and T. All the E2 effluent samples with MBR/ultrafiltration (UF), MBR/NF, and MBR/RO were lower than the US EPA and WHO trigger value of 0.7 ng/L, as well as the predicted no-effect concentration (PNEC) values for fish (1 ng E2/L).

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The feasibility of nanofiltration membrane bioreactor (NF-MBR)+reverse osmosis (RO) process for water reclamation: Comparison with ultrafiltration membrane bioreactor (UF-MBR)+RO process

Cited by 102 publications

References 54 publications

Nanofiltration as a cost-saving desalination process

Nanofiltration as a cost-saving desalination process

Mass and Heat Transfer Coefficients in a Thermophilic Membrane Distillation Bioreactor

Exclusion of Estrogenic and Androgenic Steroid Hormones from Municipal Membrane Bioreactor Wastewater Using UF/NF/RO Membranes for Water Reuse Application

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