Suggested Strategies in Water Treatment by Using Situ Pressure in Reverse Osmosis

Norouzi, Susan

doi:10.4236/ojg.2015.55033

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…Therefore, there is a ca. 53% increase in drinking water demand is projected by 2030 [1]. Other references reported that water demand will increase by 55% in 2050 [2].…”

Section: Introductionmentioning

confidence: 99%

Design of a Solar Powered Reverse Osmosis System in Egypt

Ibrahim

Shabak

2021

Journal of Mechanical and Energy Engineering

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Scarcity of fresh water, forced many countries to get their water needs, or part of it, by means of saline water desalination. Reverse osmosis (RO) systems are useful tools in this concern. In case the grid electricity is not available or costly, photovoltaic (PV) power is necessary to derive RO systems. The present paper is concerned with providing a methodology for complete sizing and design of a photovoltaic reverse osmosis (PVRO) system in Egypt. Egypt has very favorable solar energy. A computer program was constructed to solve the mathematical equations of the model to get the numerical values. The program is capable of calculating the solar irradiation for any city in Egypt. Calculations and selection of the RO system with all connected pumps, the peak PV power needed, and the actual PV area were performed for different water demands ranging from 1-100 m3/day, and various water total dissolved solids (TDSs) of 5000, 15000, and 30000 mg/l. The cost of the complete PVRO system was also determined. The concern of the paper is related to water desalination and solar energy, which are responsible for our existence. The work also aims toward sustainable and clean environment via utilizing solar energy.

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“…Therefore, there is a ca. 53% increase in drinking water demand is projected by 2030 [1]. Other references reported that water demand will increase by 55% in 2050 [2].…”

Section: Introductionmentioning

confidence: 99%

Design of a Solar Powered Reverse Osmosis System in Egypt

Ibrahim

Shabak

2021

Journal of Mechanical and Energy Engineering

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Study the adsorption properties of magnetite nanoparticles in the presence of different synthesized surfactants for heavy metal ions removal

El-Dib

Mohamed

El-Shamy

et al. 2020

Egyptian Journal of Petroleum

110

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Study of Pb Ions Removal from Aqueous Solutions by a Novel Sodium Formate-Coated Magnetite Nanoparticles

Mustafa

Al‐Saadi

2021

J. Phys.: Conf. Ser.

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One of the problems that continuously happen from the past ages till the present time is the contamination of the water sources with heavy metal ions; as a continuation of the many studies have been done so far to solve this problem. Novel magnetite nanoparticles (NPs) coated with sodium formate (SF-Ni0.31Mg0.15Ag0.04Fe2.5O4)have been prepared using co-precipitation method. Characterization of the prepared SF-magnetite NPs was done by using the spectroscopic devices (XRD), (SEM), (EDX), (FT-IR), and (AAS). From the XRD spectrum it was found that the crystal structure of the prepared SF-magnetite NPs is a cubic inverse spinel structure, which has average crystallite size, the lattice constant, and X-ray density of 28.57 nm, 8.33 Å, 5.29 g/cm3, respectively. SEM images have shown that the prepared NPs have a sphere-like shape with a measured average crystallite size of 25.93 nm. By EDX spectrum the presence of the constituent elements was confirmed by giving their energy peaks (O: Kα=0.525), (Fe: Kα=6.4, Lα=0.705), (Ni: Kα=7.84, Lα=0.85), (Mg: Kα=1.25), and (Ag: Lα=2.98, Lβ=3.35). The attachment of the SF molecules to the magnetite NPs was proven by the FT-IR spectrum through appearing the absorption peaks in the SF-magnetite NPs spectrum at 1600cm−1 and 3400cm−1 return to the bonds (C=O) and (C-H stretch) in SF. By ASS results, adsorption of Pb ions was clearly influenced by SF coating giving removal rate (93%) at equilibrium time (10min) in the prepared solution of Pb(NO3)2 salt, while for the wastewater samples the removal rate was (55%) - (100%).

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Suggested Strategies in Water Treatment by Using Situ Pressure in Reverse Osmosis

Cited by 4 publications

References 7 publications

Design of a Solar Powered Reverse Osmosis System in Egypt

Design of a Solar Powered Reverse Osmosis System in Egypt

Study the adsorption properties of magnetite nanoparticles in the presence of different synthesized surfactants for heavy metal ions removal

Study of Pb Ions Removal from Aqueous Solutions by a Novel Sodium Formate-Coated Magnetite Nanoparticles

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