Membrane selection for the Gold mining pressure-oxidation process (POX) effluent reclamation using integrated UF-NF-RO processes

Ramos, Ramatisa L.; Grossi, Luiza B.; Ricci, Bárbara C.; Amaral, Míriam Cristina Santos

doi:10.1016/j.jece.2020.104056

Cited by 16 publications

(4 citation statements)

References 27 publications

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“…The generated membranes' water flux J was determined using Eq. ( 3 ) 41 . where Δt is the time, A for the effective membrane area (m), and V for permeate per unit time (h).…”

Section: Methodsmentioning

confidence: 99%

Low-cost photocatalytic membrane modified with green heterojunction TiO2/ZnO nanoparticles prepared from waste

Mousa,

Abdallah,

Khairy

2023

Sci Rep

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The combination of photocatalysis and membrane procedures represents a promising approach for water treatment. This study utilized green synthesis methods to produce TiO2 nanoparticles (NPs) using Pomegranate extract and ZnO nanoparticles using Tangerine extract. These nanoparticles were then incorporated into a polyvinyl chloride (PVC) nanocomposite photocatalytic membrane. Different devices were used to examine the properties of nanocomposite membranes. The prepared membranes' morphology was examined using atomic force microscopy (AFM) and field emission scanning electron microscopy (FESEM). The hydrophilicity of the membrane surface was assessed through the measurement of contact angle, while the crystal structure and chemical bonding were analyzed using Raman and Fourier transform infrared spectroscopy (FT-IR). The study also encompassed an examination of the mechanical properties. The hydrophilicity of the modified membrane exhibited a significant improvement. Additionally, there was an observed increase in both the pure water flux and rejection values. The photocatalytic activity of the membrane was found to be enhanced when exposed to sunlight as compared to when kept in the dark. The TiO2/ZnO nanocomposites membrane exhibited the highest level of photocatalytic degradation, achieving a rejection rate of 98.7% compared to the unmodified membrane. Therefore, it was determined that the TiO2/ZnO nanocomposites membrane exhibited superior performance to the other membranes assessed. The potential utility of our research lies in its application within the water treatment industry, specifically as an effective technique for modifying PVC membranes.

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“…The generated membranes' water flux J was determined using Eq. ( 3 ) 41 . where Δt is the time, A for the effective membrane area (m), and V for permeate per unit time (h).…”

Section: Methodsmentioning

confidence: 99%

Low-cost photocatalytic membrane modified with green heterojunction TiO2/ZnO nanoparticles prepared from waste

Mousa,

Abdallah,

Khairy

2023

Sci Rep

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“…A long-term work in a mining company validated suitability of the proposed treatment scheme. The same working group conducted further studies to find the most chemically stable membranes in order to increase the process sustainability [40]. Commercially available NF membranes (NF90, NF270, MPF34, DK, Duracid) and RO membranes (BW30, LP, TFC-HR, XN45, and SG) were assessed in terms of key performance parameters.…”

Section: Membrane Technologies For Pls Concentrationmentioning

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 basic formulation is similar to reverse osmosis but the operational mechanism is similar to ultrafiltration. So nanofiltration is a combination of reverse osmosition and ultrafiltration [Ramos et al, 2020].…”

Section: Introductionmentioning

confidence: 99%

Processing Coal Mine Acidic Water Using Nanofiltration Membrane in West Aceh

Kiswanto,

Wintah

2024

Ecol. Eng. Environ. Technol.

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Acidic water from the coal of mining pool has been polluted from the surrounding coal stockpile stocpile industry. Water quality in mining ponds can threaten the biota in it. During this time, coal mining pool the local community uses water extensively for everyday requirements like drinking, washing, and bathing. More than time it turns out that coal mine acidic water has been polluted. This problem needs to be sought a solution, one of which is required treatment technology for creating water quality that satisfies requirements for drinking water quality. This research tries to use NF270 membrane type Nanofiltration membrane technology to eliminate COD, TSS, TDS, and metal parameters (Fe, Mn). This research was conducted by analyzing the influence pressure (4, 5, and 6 bar) on each component's rejection rate and flux each parameter. The results of the study show the processed results as follows;

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Membrane selection for the Gold mining pressure-oxidation process (POX) effluent reclamation using integrated UF-NF-RO processes

Cited by 16 publications

References 27 publications

Low-cost photocatalytic membrane modified with green heterojunction TiO2/ZnO nanoparticles prepared from waste

Low-cost photocatalytic membrane modified with green heterojunction TiO2/ZnO nanoparticles prepared from waste

Application of membrane processes in mining and mineral processing

Processing Coal Mine Acidic Water Using Nanofiltration Membrane in West Aceh

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