Environmental issues in seawater reverse osmosis desalination: Intakes and outfalls

Missimer, Thomas M.; Maliva, Robert G.

doi:10.1016/j.desal.2017.07.012

Cited by 258 publications

(153 citation statements)

References 52 publications

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“…There are many well‐known processes regarding the treatments of contaminated wastewaters like membrane filtration, chemical precipitation, electrocoagulation, reverse osmosis, adsorbtion, ion exchange, etc., all of them with their inherent advantages and disadvantages. At the same time, most of them are not suitable for developing countries due to huge cost investment in terms of use of chemicals, infrastructure, and operation.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal adsorption ability of a new composite material based on starch strengthened with chemically modified cellulose

Anghel¹,

Niculaua

Spiridon³

2019

Polymers for Advanced Techs

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Adsorption of heavy metals (Pb, Zn, and Cu) on a new bioadsorbent based on starch reinforced with modified cellulose with toluene‐diisocyanate has been studied using batch‐adsorption technology. The study was carried out in order to find if this bio material, designed for seedling pots manufacture, is able to act like a barrier between soil pollutants and plants. The influence of contact time, pH, adsorbent dose, and salt concentrations was also evaluated. The obtained data were examined using the Langmuir and Freundlich adsorption models. Optimal results were obtained at pH 5.0, temperature of 25°C, contact time of 120 minutes, and an adsorbent dose of 4 mg/mL. Experimental data along with computed Langmuir parameters show that the adsorption process is favorable, and the maximum adsorption capacity of the adsorbent for lead, zinc, and copper was 66.66, 58.82, and 47.61 mg/g, respectively.

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Section: Introductionmentioning

confidence: 99%

Heavy metal adsorption ability of a new composite material based on starch strengthened with chemically modified cellulose

Anghel¹,

Niculaua

Spiridon³

2019

Polymers for Advanced Techs

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“…Concentrate disposal can locally impact benthic creatures (by poorly diluted discharge to the marine bottom). This impact can be minimized by using an accurate design of diffuser systems (Missimer and Maliva 2018).…”

Section: Environmental Effectsmentioning

confidence: 99%

Hybrid renewable energy systems for desalination

Esmaeilion¹

2020

Appl Water Sci

155

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Water and energy are two key factors in human life that always control the growth and development of human societies. Climate changes, increasing the population in urban areas and industrialization, have increased the demands for freshwater around the world. Estimates show that a small percentage of all freshwater produced in the world is from renewable sources. By developing the technology, lowering equipment prices and increasing attention to the environmental problems of fossil fuels, utilizing renewable energy is growing. By providing a wide variety of conventional desalination methods driven by various types of renewable energy technologies in the world, water and energy legislators should choose different methods to meet the needs based on the local potentials by paying attention to the desalination processes and power systems. In some cases, concentrated solar power for thermal desalination or electricity generated by the photovoltaic plants for membrane desalination systems can be used in arid areas. Definitely, the most problem of using renewable sources is their unsteady natures, which using storage systems or combining with other renewable sources can solve this problem. This chapter provides extensive information about renewables, desalination and performance analysis of power systems. Reverse osmosis technique is a practical process in desalination which 69% of desalination plants use this system. Solar energy is an important source of energy for hybrid systems. The geothermal has a steady performance at a specified depth. Ultimately, obtained results from energy and exergy analysis would have provided a better insight.

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“…Also, as compared with the Ghyben‐Herzberg epoch of seawater intrusion, completely new situations of hydrodynamic interaction between fresh and saline water in shallow aquifers have emerged due to the advent of large‐scale desalination in the Gulf, where desalination plants of big cities produce tens and hundreds of thousands of cubic meters of freshwater per day. Consequently, a dense reject brine from desalination plants is legally discharged into the sea and is injected‐infiltrated into aquifers (see e.g., Ghaffour et al, ; Guttman et al, ; Missimer & Maliva, for a meta‐scale analysis in the region). Thus, brines, which are haphazardly or regularly deposited in porous formations, sink to the bedrock, and make insidious DNAPL spots.…”

Section: Introductionmentioning

confidence: 99%

Analytical Solution for Interface Flow to a Sink With an Upconed Saline Water Lens: Strack's Regimes Revisited

Kacimov

2018

Water Resources Research

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A study is made of a steady, two‐dimensional groundwater flow with a horizontal well (drain), which pumps out freshwater from an aquifer sandwiched between a horizontal bedrock and ponded soil surface, and containing a lens‐shaped static volume of a heavier saline water (DNAPL‐dense nonaqueous phase liquid) as a free surface. For flow toward a line sink, an explicit analytical solution is obtained by a conformal mapping of the hexagon in the complex potential plane onto a reference plane and the Keldysh‐Sedov integral representation of a mixed boundary‐value problem for a complex physical coordinate. The interface is found as a function of the pumping rate, the well locus, the ratio of liquid densities, and the hydraulic heads at the soil surface and in the well. The shape with two inflexion points and fronts varies from a small‐thickness bedrock‐spread pancake to a critical curvilinear triangle, which cusps toward the sink. The problem is mathematically solvable in a relatively narrow band of geometric and hydraulic parameters. A similar analytic solution for a static heavy bubble confined by a closed‐curve interface (no contact with the bedrock) is outlined as an illustration of the method to solve a mixed boundary‐value problem.

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Environmental issues in seawater reverse osmosis desalination: Intakes and outfalls

Cited by 258 publications

References 52 publications

Heavy metal adsorption ability of a new composite material based on starch strengthened with chemically modified cellulose

Heavy metal adsorption ability of a new composite material based on starch strengthened with chemically modified cellulose

Hybrid renewable energy systems for desalination

Analytical Solution for Interface Flow to a Sink With an Upconed Saline Water Lens: Strack's Regimes Revisited

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