A sustainable solution for fresh-water demand in mining sectors: Process water reclamation from POX effluent by membrane distillation

Foureaux, Ana Flávia Souza; Moreira, Victor Rezende; Lebron, Yuri Abner Rocha; Santos, Lucilaine Valéria de Souza; Amaral, Míriam Cristina Santos

doi:10.1016/j.seppur.2020.117797

Cited by 25 publications

(5 citation statements)

References 48 publications

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“…Furthermore, Foureaux et al (2021) examined DCMD for water reclamation by using PTFE and PVDF membranes for eight months. The researchers found salt rejection was stable after a long-term experiment and it was maintained to 99.2% by both membranes.…”

Section: Desalination and Wastewater Treatmentmentioning

confidence: 99%

A review of seawater desalination with membrane distillation: material development and energy requirements

Adewole¹,

Maawali²,

Jafary³

et al. 2022

Water Supply

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The importance of membrane technology development in our daily life cannot be overemphasized. Over the past decades, membrane technology has become very popular in providing potable water for mankind. However, old technologies (such as reverse osmosis and ultrafiltration) which are highly energy intensive are still very common in water treatment industries. In this review work, the capability of low energy consumption membrane distillation (MD) technology was reviewed with emphasis on material development and energy requirement. We began by reviewing the history of MD process, configurations, module types, membrane materials, material fabrication methods, material properties, material modification techniques, application, and energy requirement. Factors which influence the performance of MD–both design and operating conditions–were then extensively discussed. Furthermore, we report desalination and wastewater treatment as the hottest areas of application where MD has gained significant interest. Membrane hydrophobicity and fouling resistance as pivotal areas where improvement in MD performance is being sought after are identified. Finally, we discussed various industries where MD is presently being applied. We conclude by highlighting the energy requirements of MD and identified solar energy as a renewable energy resource which could meet the energy requirement of MD technology. This review paper is believed to foster the interest and provide insights on material development for membrane distillation application.

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Section: Desalination and Wastewater Treatmentmentioning

confidence: 99%

A review of seawater desalination with membrane distillation: material development and energy requirements

Adewole¹,

Maawali²,

Jafary³

et al. 2022

Water Supply

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“…In order to find a sustainable solution for fresh-water demand in mining sectors, MD was proposed to reclaim POX effluent [54]. Different operational conditions were studies and under the optimum ones (PTFE membrane with spacer, feed temperature -60 •C, recirculation flow rate -0,3 L/ min), the average distillate flux was 6,82 L/m 2 h and a permeate recovery rate was 33,91% at retention rates for metals > 95,7% and for the acid > 99,9%.…”

Section: Membrane Technologies For Recovering Reagents Metals and Water From Mining Waste Streamsmentioning

confidence: 99%

Application of membrane processes in mining and mineral processing

Panayotova

Panayotov

2021

E3S Web Conf.

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Sustainable mining and mineral processing is of paramount importance for producing metals needed for our society development. Membrane processes are able to contribute to the comprehensive extraction of metals from mined ores, while at the same time decrease the amounts of used water and reagents and ensure discharge to the environment of wastewater meeting the legislation requirements. Membranebased technologies are still underused in metals obtaining although their development and price have made their application affordable. The paper presents in brief membrane processes and displays examples of their application in various areas of mining and mineral processing, such as coping with acid mine drainage and mine influenced water, recovery of metals, reagents and water in hydrometallurgy, recovery of lithium from brines, and treatment of wastewater. Emphasis is placed on pressure driven membrane processes, as well as on the very recent studies in the area. Advantages of membrane processes application in mining and mineral processing are pointed out as well as constrains to be overcome.

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“…The findings were compared to those of neat and nanofibrous membrane (ZP); the membrane made from a PVDF membrane with ZnO added demonstrated strong anti-wetting performance, a high value of liquid entry pressure (LEP) while desalting NaCl solution, and a steady permeate flux. Foureaux et al [31] used polytetrafluoroethylene (PTFE) and PVDF membranes to test DCMD for water reclamation for eight months. For a PTFE membrane with a spacer, the permeate flux was 6.82 L/(m 2 h).…”

Section: Introductionmentioning

confidence: 99%

The Effect of Operating Parameters on Total Cross-membrane Flux in a PVDF Flat Sheet Membrane

Bekraoui,

Nehari,

Baki

et al. 2023

Period. Polytech. Chem. Eng.

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Membrane distillation (MD) is an emerging thermal membrane technology that involves water vapor driven by a vapor pressure gradient over a hydrophobic membrane. MD faces several challenges, one of which is the flux of water vapor. The total cross-membrane flux in membrane distillation was investigated in this paper using the co-current PVDF flat sheet for direct contact. membrane distillation applications. The goal of this research is to improve total cross-membrane flux. The effect of various operational parameters is studied, including feed inlet temperature (333.15–358.15 K), feed flow rate (1–2.5 kg/s), permeate inlet temperature (288.15–313.15 K), and feed inlet NaCl concentration (0.035 to 0.485 kg/kg). To acquire a good value of total cross-membrane flux, their interactions with the total cross-membrane flux are studied in this work. The obtained results were computed during MATLAB-Simulations under several scenarios adopting the Trial-&-Error approach. This last inputs various parameters' values and thus draws the required curves to be discussed and analyzed. The results indicated that the PVDF flat sheet membranes provide a significantly higher total cross-membrane flux at higher feed input temperatures, producing a 73.2075 kg/(m2 h) at a feed inlet temperature of 358.15 K, a permeate inlet temperature of 293.15 K, and a flow rate of 2.5 kg/s, with a feed inlet NaCl concentration of 0.035 kg/kg. Feed inlet temperature significantly affected the total flux through the membrane; however, flow rate, permeate inlet temperature, and feed inlet NaCl concentration had a less significant effect.

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A sustainable solution for fresh-water demand in mining sectors: Process water reclamation from POX effluent by membrane distillation

Cited by 25 publications

References 48 publications

A review of seawater desalination with membrane distillation: material development and energy requirements

A review of seawater desalination with membrane distillation: material development and energy requirements

Application of membrane processes in mining and mineral processing

The Effect of Operating Parameters on Total Cross-membrane Flux in a PVDF Flat Sheet Membrane

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