Recycling brine water of reverse osmosis desalination employing adsorption desalination: A theoretical simulation

Ali, Ehab S.; Alsaman, Ahmed S.; Harby, K.; Askalany, Ahmed A.; Diab, Mohamed Refaat; Yakoot, Sobhy M.

doi:10.1016/j.desal.2016.12.002

Cited by 82 publications

(20 citation statements)

References 32 publications

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“…Therefore, the feasibility of seawater desalination for different countries is intertwined with two factors: the production cost of desalinated water and the water price, which may be a good proxy for the affordability of water resources. Using various empirical and computerized tools, several existing studies estimate the capital or O&M costs of desalination, as these will directly determine the threshold for building a desalination plant or the long-term operation of a desalination plant [15][16][17][18][19]. However, few studies address the correlation between these two economic factors (i.e., the production cost and water price) when evaluating the development of seawater desalination in different countries.…”

Section: Introductionmentioning

confidence: 99%

An Economic Assessment of the Global Potential for Seawater Desalination to 2050

Gao

Yoshikawa

Iseri

et al. 2017

Water

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Seawater desalination is a promising approach to satisfying water demand in coastal countries suffering from water scarcity. To clarify its potential future global scale, we perform a detailed investigation of the economic feasibility of desalination development for different countries using a feasibility index (F i ) that reflects a comparison between the price of water and the cost of production. We consider both past and future time periods. For historical validation, F i is first evaluated for nine major desalination countries; its variation is in good agreement with the actual historical development of desalination in these countries on both spatial and temporal scales. We then simulate the period of 2015-2050 for a Shared Socioeconomic Pathway (SSP2) and two climate scenarios. Our projected results suggest that desalination will become more feasible for countries undergoing continued development by 2050. The corresponding total global desalination population will increase by 3.2-fold in 2050 compared to the present (from 551.6 × 10 6 in 2015 to 1768 × 10 6 ). The major spread of seawater desalination to more countries and its availability to larger populations is mainly attributed to the diminishing production costs and increasing water prices in these countries under the given socioeconomic/climate scenarios.

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Section: Introductionmentioning

confidence: 99%

An Economic Assessment of the Global Potential for Seawater Desalination to 2050

Gao

Yoshikawa

Iseri

et al. 2017

Water

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“…AD has embarked on a massive United States (US) five-billion-dollar program, based on the aquifer storage and recovery approach [11]. This program is to build capacity so that local aquifers can be used as strategic reserves for desalinated water [12].…”

Section: The Context Of the Water Energy Nexus In Abu Dhabimentioning

confidence: 99%

“…This provides evidence that the value of water production is not tied to the subsidized (50% discount) commercial and residential AD water tariff, which is AED 4.11/m³ [10] after discount, which is equivalent to USD 1.12/m³ [22]. Desalination plants have been optimized since 1990-2000, although the process efficiency is still under investigation through pilot programs [11] such as an adsorption desalination system producing pure water with no need for fossil fuel use (ibid.). Thus, in 2017, the process of desalination was still highly energy intensive [13,14,21], hence impacting on the natural environment, and contributing ultimately to climate change.…”

Section: Msf Med Romentioning

confidence: 99%

A GHG Metric Methodology to Assess Onsite Buildings Non-Potable Water System for Outdoor Landscape Use

2020

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This paper documents a water:energy greenhouse gas (GHG) metric methodology for a decentralized non-potable water system that was developed as part of a Professional Doctorate in Engineering (DEng) research project by the first author. The project identified the need to investigate the challenges in changing the use of potable water to recycled water for landscape irrigation (LI) and for water features (WFs) at a medical facility case study (MFCS) in Abu Dhabi (AD) (the capital city of the United Arab Emirates (UAE). The drivers for the research project were based on the need for AD to decrease desalinated potable water as well as reduce the environmental impact and operational costs associated with the processing and use of desalinated water. Thus, the aim of the research discussed and presented in this paper was to measure the impact of using recycled and onsite non-potable water sources at the MFCS to alleviate the use of desalinated potable water and reduce associated energy consumption, operational costs, and GHG emissions (latterly in terms of carbon dioxide equivalent (CO 2e ), for LI and WFs. The analysis of three case scenarios at the MFCS compared different approaches to alleviate energy use, costs, and GHG impacts for the use of recycled water in LI and WFs against a baseline. The findings led to a proposed sustainable water conservation and reuse (SWC) strategy, which helped save 50% desalinated potable water for LI use by soil improvement, building water system audits, and alternate non-potable water reuse. The recommendations for this paper are to develop a SWC strategy forming the basis for a water protocol by the competent authority for regional medical facilities including an assessment methodology for building decentralized non-potable water systems to measure their energy, GHG emissions and financial impact.

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“…Figure 2 shows a combination between adsorption and membrane separation. The overall removal efficiency of the hybrid process would be enhanced [17][18][19]. Generally, three different procedures for hybridization of membrane systems with adsorption processes may be found:…”

Section: Recent Drifts In Ph-responsive Separation Techniquesmentioning

confidence: 99%

Recent Drifts in pH-Sensitive Reverse Osmosis

Ibrahim¹,

El-Gammal²

2018

Wastewater and Water Quality

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Preparation of some smart PAm-ZTS pH-responsive membranes, via reactions between ZTS and PAm under different conditions, was conducted for testing pressure-driven reverse osmosis membranes (PDROMs) in active rejection of Ce 4+ ,Pr 3+ ,Sm 3+ ,Gd 3+ ,Dy 3+ , and Ho 3+ ionic lanthanide species in their 3 + and 4 + states. Recent theoretical models to designate the membrane operations were mathematically itemized, after selective characterization of the PDROMs. The pH scale response of the membrane was confirmed using static adsorption and hydraulic pervasion result estimations. The flux across the PAm-ZTS membrane decreased with the lowering pH value, with drastic decreases between pH 4 and 7, and was both reversible and durable with pH shifts between~3 and~8. At lower pH 3, the individual pores were in a closed-state due to the prolonged structure of the amide chains on the porous surfaces. In contrast, at pH 8, the higher pH value, the membrane pores were in an open-state format, because of the collapsed structures of the amide chains. This grants a clear possible approach for manufacturing some pHresponsive composite membranes and inspires further design for their stimuli-responsive actions by incorporating molecularly designed macromolecules, synthesized by controlled polymerization.

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Recycling brine water of reverse osmosis desalination employing adsorption desalination: A theoretical simulation

Cited by 82 publications

References 32 publications

An Economic Assessment of the Global Potential for Seawater Desalination to 2050

An Economic Assessment of the Global Potential for Seawater Desalination to 2050

A GHG Metric Methodology to Assess Onsite Buildings Non-Potable Water System for Outdoor Landscape Use

Recent Drifts in pH-Sensitive Reverse Osmosis

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