Produced Water Treatment with Conventional Adsorbents and MOF as an Alternative: A Review

Zaman, Humaira Gul; Baloo, Lavania; Pendyala, Rajashekhar; Singa, Pradeep Kumar; Kutty, Shamsul Rahman Mohamed

doi:10.3390/ma14247607

Cited by 36 publications

(21 citation statements)

References 149 publications

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“…1 illustrate the model setup for simulating Cu 2+ , Cs + , Cl − , and OH − adsorption onto a porous kerogen surface in the presence or absence of scCO 2 . Cu 2+ and Cs + ions were selected to represent common metal cations found in produced water 4 . Overmature and top of the oil window kerogen structural models (type IID and IIB, respectively) 32 were used in our simulations.…”

Section: Methodsmentioning

confidence: 99%

“…The chemical composition of produced water varies depending on geographic locations, geochemistry of formations, extraction methods, and reservior types (conventional vs. unconventional) 3 . Many metals in produced water are toxic and cause a major environmental problem, especially naturally occurring radioactive materials including 232 Th, 238 U, 226 Ra, 210 Pb, and 137 Cs 4 . Due to the complexity of metal partition between geological materials (kerogen and minerals) and fluids, it remains challenge to quantify the source of metals in produced water and develop a strategy to minimize the amount of toxic metals released into produced water.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Carbon dioxide-enhanced metal release from kerogen

Wang

2022

Sci Rep

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Heavy metals released from kerogen to produced water during oil/gas extraction have caused major enviromental concerns. To curtail water usage and production in an operation and to use the same process for carbon sequestration, supercritical CO2 (scCO2) has been suggested as a fracking fluid or an oil/gas recovery agent. It has been shown previously that injection of scCO2 into a reservoir may cause several chemical and physical changes to the reservoir properties including pore surface wettability, gas sorption capacity, and transport properties. Using molecular dynamics simulations, we here demonstrate that injection of scCO2 might lead to desorption of physically adsorbed metals from kerogen structures. This process on one hand may impact the quality of produced water. On the other hand, it may enhance metal recovery if this process is used for in-situ extraction of critical metals from shale or other organic carbon-rich formations such as coal.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon dioxide-enhanced metal release from kerogen

Wang

2022

Sci Rep

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“…There are various treatment methods for the removal of organics, among them the most used is adsorption with the help of nanomaterials, nanocomposites, nanoparticles, clays, biopolymers, metal–organic frameworks (MOFs), and zeolites [ 90 ].…”

Section: Remediation Of Water/soil Systemsmentioning

confidence: 99%

Natural Polymers and Their Nanocomposites Used for Environmental Applications

et al. 2022

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The aim of this review is to bring together the main natural polymer applications for environmental remediation, as a class of nexus materials with advanced properties that offer the opportunity of integration in single or simultaneous decontamination processes. By identifying the main natural polymers derived from agro-industrial sources or monomers converted by biotechnology into sustainable polymers, the paper offers the main performances identified in the literature for: (i) the treatment of water contaminated with heavy metals and emerging pollutants such as dyes and organics, (ii) the decontamination and remediation of soils, and (iii) the reduction in the number of suspended solids of a particulate matter (PM) type in the atmosphere. Because nanotechnology offers new horizons in materials science, nanocomposite tunable polymers are also studied and presented as promising materials in the context of developing sustainable and integrated products in society to ensure quality of life. As a class of future smart materials, the natural polymers and their nanocomposites are obtained from renewable resources, which are inexpensive materials with high surface area, porosity, and high adsorption properties due to their various functional groups. The information gathered in this review paper is based on the publications in the field from the last two decades. The future perspectives of these fascinating materials should take into account the scale-up, the toxicity of nanoparticles, and the competition with food production, as well as the environmental regulations.

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“…Biological treatment is also used despite requiring a further consuming time treatment. A practical alternative for water treatment is the adsorption process; the main mechanism is accumulating a layer of solute molecules on the solid surface in contact [ 4 ]. Adsorption is envisaged as a promising technique due to its simplicity, ease of operation, high removal capability [ 5 ], and accelerated removal of pollutants [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Process Parameters on the Graphite Expansion Produced by a Green Modification of the Hummers Method

Tarango-Rivero

Mendoza-Duarte²,

Santos-Beltrán

et al. 2022

Molecules

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Adsorption stand out among other standard techniques used for water treatment because of its remarkable simplicity, easy operation, and high removal capability. Expanded graphite has been selected as a promising agent for oil spill adsorption, but its production involves the generation of corrosive remnants and massive amounts of contaminated washing waters. Although the advantageous use of the H2O2–H2SO4 mixture was described in 1978, reported works using this method are scarce. This work deals with the urgent necessity for the development of alternative chemical routes decreasing their environmental impact (based on green chemistry concepts), presenting a process for expanded graphite production using only two intercalation chemicals, reducing the consumption of sulfuric acid to only 10% and avoiding the use of strong oxidant salts (both environmentally detrimental). Three process parameters were evaluated: milling effect, peroxide concentration, and microwave expansion. Some remarkable results were obtained following this route: high specific volumes elevated oil adsorption rate exhibiting a high oil–water selectivity and rapid adsorption. Furthermore, the recycling capability was checked using up to six adsorption cycles. Results showed that milling time reduces the specimen’s expansion rate and oil adsorption capacity due to poor intercalant insertion and generation of small particle sizes.

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Produced Water Treatment with Conventional Adsorbents and MOF as an Alternative: A Review

Cited by 36 publications

References 149 publications

Carbon dioxide-enhanced metal release from kerogen

Carbon dioxide-enhanced metal release from kerogen

Natural Polymers and Their Nanocomposites Used for Environmental Applications

Effect of Process Parameters on the Graphite Expansion Produced by a Green Modification of the Hummers Method

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