Membrane distillation for achieving high water recovery for potable water reuse

Ngo, My Thi Tra; Diep, Binh Quoc; Sano, Hidehiko; Nishimura, Yasuhisa; Boivin, Sandrine; Kodamatani, Hitoshi; Takeuchi, Haruka; Sakti, Satya Candra Wibawa; Fujioka, Takahiro

doi:10.1016/j.chemosphere.2021.132610

Cited by 17 publications

(6 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Higher recovery leads to a higher feed solution concentration and a lower water flux in the long run. The results agree with previous studies that showed a decline in the water flux flow with the recovery increase due to concentration and thermal polarizations [ 29 ]. The 90% recovery took a shorter time; therefore, the average flux is higher.…”

Section: Resultssupporting

confidence: 93%

Fouling and Performance Investigation of Membrane Distillation at Elevated Recoveries for Seawater Desalination and Wastewater Reclamation

et al. 2022

View full text Add to dashboard Cite

: This study reports on the impact of elevated recovery (i.e., 80%, 85%, and 90%) on the fouling and performance of air gap membrane distillation (AGMD) with real seawater and landfill leachate wastewater samples using polytetrafluoroethylene (PTFE) polymer membranes. Increasing the feed temperature from 55 °C to 65 °C improved the water flux of seawater and wastewater and shortened the operating time by 42.8% for all recoveries. The average water flux in the 80%, 85%, and 90% recovery experiments at the 65 °C feed temperature was 32%, 37.32%, and 36.7% higher than the case of 55 °C for the same recoveries. The water flux decline was more severe at a higher temperature and recovery. The highest flux decline was observed with a 90% recovery at 65 °C feed temperature, followed by an 85% recovery at 65 °C. Close examination of the foulants layer revealed that seawater formed a cake fouling layer made predominantly of metal oxides. In contrast, the landfill leachate fouling was a combination of pore blocking and cake formation, consisting mainly of carbonous and nitrogenous compounds. Physical cleaning with deionized (DI) water at 55 °C and 65 °C and chemical cleaning with hydrogen peroxide (H2O2) were investigated for their efficiency in removing membrane foulants. Analytical results revealed that seawater fouling caused membrane pore blockage while wastewater fouling formed a porous layer on the membrane surface. The results showed that membrane cleaning with hydrogen peroxide restored >97% of the water flux. Interestingly, the fouling factor in seawater tests was 10%, while it was 16% for the wastewater tests.

show abstract

Section: Resultssupporting

confidence: 93%

Fouling and Performance Investigation of Membrane Distillation at Elevated Recoveries for Seawater Desalination and Wastewater Reclamation

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The integration of ozonation (oxidation) and biofiltration (adsorption and biological degradation) is also considered an effective approach to overcome several obstacles during the conventional water reuse treatment process, owing to its effectiveness in removing trace organic pollutants, byproduct precursors, biodegradable organic matter, and concerning substances [28]. Integrating membrane distillation and RO can purify RO-concentrated wastewater for potable water reuse with high recovery percentages; however, subsequent treatments, such as advanced oxidation (posttreatment), may be required to treat nitrosodimethylamine [29]. A UV-based advanced oxidation can be used to treat RO concentrates characterized by high content of dissolved organic matter; this can ultimately improve the sustainability of water reuse systems [30].…”

Section: Tertiary Treatment (Tt)mentioning

confidence: 99%

Treatment Technologies and Guidelines Set for Water Reuse

Abou-Shady¹,

El-Araby²

2023

Sustainable Development

View full text Add to dashboard Cite

Water reuse is considered a practice that is currently embraced worldwide owing to the exacerbated water crisis, which is the result of several factors such as the increasing world population, urbanization, industrial sector, global climate change, limited water resources, and agricultural activities. Water reuse is not used intensively only in arid and semi-arid regions, which are characterized by limited water supply but can also be applied in countries that possess sufficient water resources (e.g., Brazil and Canada are implementing policies for water reuse). This chapter discusses the treatment technologies proposed for water reuse and presents some recent guidelines set for water reuse. Treatment technologies typically have three main processes: primary, secondary, and tertiary. There are several set guidelines worldwide for water reuse, however, a universal standard guideline to facilitate the reuse of reclaimed water has not been established. No federal regulations for reusing recycled water have been established in the United States; however, several individual states and territories have established specific regulations to manage reclaimed water for various purposes, including agricultural irrigation, animal watering, and crop production.

show abstract

“…Freshwater resources are becoming increasingly scarce due to accelerated water resource consumption and severe water pollution. , Exploiting water treatment methods for the unremitting generation of clean water from nonpotable water is an ongoing challenge to solve the freshwater crises . Various wastewater purification technologies have been developed, such as multistage filtration, membrane distillation, , reverse osmosis, and so on, but they suffer from secondary pollution or high energy consumption. Notably, solar-driven interfacial steam generation (SISG) with low cost and environmental friendliness is regarded as a burgeoning strategy in sustainable freshwater production. , During the SISG process, photothermal conversion and water vapor generation are achieved by localized heating at the air/liquid interface from the most abundant renewable solar energy. , Compared with firsthand bulk water heating, the heat loss is reduced and evaporation performance is enhanced during the SISG process. , …”

Section: Introductionmentioning

confidence: 99%

“…1,2 Exploiting water treatment methods for the unremitting generation of clean water from nonpotable water is an ongoing challenge to solve the freshwater crises. 3 Various wastewater purification technologies have been developed, such as multistage filtration, 4 membrane distillation, 5,6 reverse osmosis, 7 and so on, but they suffer from secondary pollution or high energy consumption. Notably, solar-driven interfacial steam generation (SISG) with low cost and environmental friendliness is regarded as a burgeoning strategy in sustainable freshwater production.…”

Section: Introductionmentioning

confidence: 99%