Applicability of osmotic bioreactor using potassium pyrophosphate as draw solution combined with reverse osmosis for removal of pharmaceuticals and production of high quality reused water

Silva, Jessica Rodrigues Pires da; Monteiro, Mychelle Alves; Lima, Maria Emanuelle Damazio; Lima, Patrícia Condé de; Santana, Daniela Silva; Fonseca, Fabiana Valéria da; Borges, Cristiano Piacsek

doi:10.1016/j.jece.2021.106487

Cited by 5 publications

(2 citation statements)

References 46 publications

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“…To integrate FO with AWE, KOH and two other electrolytes including sodium bicarbonate (NaHCO 3 ), and potassium pyrophosphate (K 4 P 2 O 7 ) were considered as potential draw solutions for FO instead of the conventional NaCl, as NaCl induces a CER, which negatively affects H 2 generation and damages both the FO membrane and electrodes 30 – 33 . Among these electrolytes at a concentration of 1 M, KOH shows current densities 18 and 12 times higher than those of NaHCO 3 and K 4 P 2 O 7 at 2 V, respectively (Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

Ultra-fast green hydrogen production from municipal wastewater by an integrated forward osmosis-alkaline water electrolysis system

Cassol,

Shang,

et al. 2024

Nat Commun

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Recent advancements in membrane-assisted seawater electrolysis powered by renewable energy offer a sustainable path to green hydrogen production. However, its large-scale implementation faces challenges due to slow power-to-hydrogen (P2H) conversion rates. Here we report a modular forward osmosis-water splitting (FOWS) system that integrates a thin-film composite FO membrane for water extraction with alkaline water electrolysis (AWE), denoted as FOWSAWE. This system generates high-purity hydrogen directly from wastewater at a rate of 448 Nm3 day−1 m−2 of membrane area, over 14 times faster than the state-of-the-art practice, with specific energy consumption as low as 3.96 kWh Nm−3. The rapid hydrogen production rate results from the utilisation of 1 M potassium hydroxide as a draw solution to extract water from wastewater, and as the electrolyte of AWE to split water and produce hydrogen. The current system enables this through the use of a potassium hydroxide-tolerant and hydrophilic FO membrane. The established water-hydrogen balance model can be applied to design modular FO and AWE units to meet demands at various scales, from households to cities, and from different water sources. The FOWSAWE system is a sustainable and an economical approach for producing hydrogen at a record-high rate directly from wastewater, marking a significant leap in P2H practice.

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Section: Resultsmentioning

confidence: 99%

Ultra-fast green hydrogen production from municipal wastewater by an integrated forward osmosis-alkaline water electrolysis system

Cassol,

Shang,

et al. 2024

Nat Commun

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“…The integrated biological trickling filters and CW may be suitable for treating wastewaters derived from food industry and have several advantages: (a) tolerance to loading shocks, (b) simplicity of operation, (c) durability, (d) low capital and operation costs, and (e) high pollutant removal efficiencies [25]. The combination of osmotic membrane bioreactor and RO could be used to treat wastewater before its subsequent reuse [26]. Five scenarios, namely, RO, evaporation, crystallization, de-supersaturation, and precipitation, have been evaluated for treating petrochemical unit effluents, in which the energy consumption and chlorine-derived compounds used in the pretreatment are considered the most influential factors [27].…”

Section: Tertiary Treatment (Tt)mentioning

confidence: 99%

Treatment Technologies and Guidelines Set for Water Reuse

Abou-Shady¹,

El-Araby²

2023

Sustainable Development

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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.

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Critical review on salt tolerance improvement and salt accumulation inhibition strategies of osmotic membrane bioreactors

Li,

Duan,

Zhang

et al. 2024

Bioresource Technology

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Applicability of osmotic bioreactor using potassium pyrophosphate as draw solution combined with reverse osmosis for removal of pharmaceuticals and production of high quality reused water

Cited by 5 publications

References 46 publications

Ultra-fast green hydrogen production from municipal wastewater by an integrated forward osmosis-alkaline water electrolysis system

Ultra-fast green hydrogen production from municipal wastewater by an integrated forward osmosis-alkaline water electrolysis system

Treatment Technologies and Guidelines Set for Water Reuse

Critical review on salt tolerance improvement and salt accumulation inhibition strategies of osmotic membrane bioreactors

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