Water conservation in mining industry by integrating pressure-oriented membrane processes for nitrogen-contaminated wastewater treatment: Bench and pilot-scale studies

Grossi, Luiza B.; Magalhães, Nátalie C.; Araujo, Bruna Magalhães de; Carvalho, Fábio de; Andrade, Laura Hamdan de; Amaral, Míriam Cristina Santos

doi:10.1016/j.jece.2020.104779

Cited by 12 publications

(9 citation statements)

References 33 publications

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“…These results support conclusion that RO and NF membrane techniques are successful at extracting heavy metals ions from wastewater and may be useful for selective metal recovery from AMD (Qasem et al, 2021). Additionally, the amounts of ammonium and nitrate in mine water effluent were investigated successfully using RO and NF membranes (Grossi et al, 2021;Zou et al, 2019). Pre-filtration of the concentrated brine stream, on the other hand, remains crucial, and the concentrated brine stream can be treated in nitrifyingdenitrifying bioreactors (Häyrynen et al, 2009).…”

Section: Reverse Osmosis and Nanofiltrationsupporting

confidence: 70%

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Mulopo¹

2022

J. Ecol. Eng.

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The successful acid mine drainage (AMD) treatment needs site-specific installation and implementation, as well as the deployment of technology that is compatible with the pollutants contained in the AMD. If key by-products of the AMD can be recovered, the financial sustainability of the AMD remediation method may be greatly improved. Additional research into novel and innovative solutions is necessary to advance in this direction. To accomplish this, it is necessary to have a complete awareness of current remediation technologies that are available and accessible. Active physical treatment methods such as ion exchange, adsorption, electrochemistry, and membrane techniques were examined in this article. Membrane technology excels in terms of ease of use, versatility, and environmental effect but produces brine streams the management of which remains vital for future adoption of the technology. Liquid membranes (LM), Micellar Enhanced Ultra-Filtration (MEUF), and Polyelectrolyte Enhanced Ultra-Filtration (PEUF) are all innovative membrane technologies that may provide some possibilities for metal recovery from chemical sludge and/or brine streams. Electrochemical technologies are considered an attractive alternative for AMD treatment, because they require only electricity as a consumable and can treat AMD to high standards by removing metals via (co)precipitation and sulfate via ionic migration (when an anion-exchange membrane is used in the configuration), while producing significantly less sludge. However, the accepted shortcomings include membrane/electrode fouling produced by (co)precipitates on the active surfaces necessary for the process, a lack of understanding regarding the effective scaling up to industrial scale, and the relatively expensive capital expenditure (CAPEX) required. The removal of heavy metals from AMD effluents by adsorption has a number of technical and environmental benefits, including high efficiency, and environmental friendliness. Despite its benefits, this technique has certain hurdles, such as the production process for low-cost adsorbents.

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Section: Reverse Osmosis and Nanofiltrationsupporting

confidence: 70%

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Mulopo¹

2022

J. Ecol. Eng.

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“…In the literature, one can find evidence of the successful application of nutrient recovery and concentration using RO [ 143 ], UF-RO [ 144 ], MF-NF [ 145 ], or NF-RO [ 20 ] processes. For example, Samantha et al [ 145 ] reported that the MF-NF treatment train in a dead-end filtration system produced a particle-free product water from raw pig manure.…”

Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

“…Moreover, MF blocks up to 98% TSS, and NF or MF permeate provided 50–70% K + and ammonium retention. Grossi et al [ 144 ] showed that the UF-RO pilot-scale treatment of a gold mining effluent from the blasting stage can recover up to 80% nitrogen compounds at 6 bar. However, according to Gui et al [ 146 ] NH 4 Cl recovery by RO using a single module requires an operating pressure above 30 bar if the solution contains 5 g/L NH 4 Cl, and the concentration of ammonium must be reduced to the discharge standards.…”

Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

2022

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The review describes the place of membrane methods in solving the problem of the recovery and re-use of biogenic elements (nutrients), primarily trivalent nitrogen NIII and pentavalent phosphorus PV, to provide the sustainable development of mankind. Methods for the recovery of NH4+ − NH3 and phosphates from natural sources and waste products of humans and animals, as well as industrial streams, are classified. Particular attention is paid to the possibilities of using membrane processes for the transition to a circular economy in the field of nutrients. The possibilities of different methods, already developed or under development, are evaluated, primarily those that use ion-exchange membranes. Electromembrane methods take a special place including capacitive deionization and electrodialysis applied for recovery, separation, concentration, and reagent-free pH shift of solutions. This review is distinguished by the fact that it summarizes not only the successes, but also the “bottlenecks” of ion-exchange membrane-based processes. Modern views on the mechanisms of NH4+ − NH3 and phosphate transport in ion-exchange membranes in the presence and in the absence of an electric field are discussed. The innovations to enhance the performance of electromembrane separation processes for phosphate and ammonium recovery are considered.

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“…A balance needs to be reached to ensure that clean water supply is sufficient and water tariff remains affordable to most people in these countries. One option is to allow the treated water from these large-scale membrane water treatment plants to be supplied to only the industry or factory for their manufacturing process [151]. Higher water tariffs could be imposed on these profit-making industries to encourage these factories to install their own water treatment facilities in order to fulfil their manufacturing demand.…”

Section: Challenges and Opportunities Of Membrane Technology Implementation In Developing Countriesmentioning

confidence: 99%

A Review on the Use of Membrane Technology Systems in Developing Countries

et al. 2021

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Fulfilling the demand of clean potable water to the general public has long been a challenging task in most developing countries due to various reasons. Large-scale membrane water treatment systems have proven to be successful in many advanced countries in the past two decades. This paves the way for developing countries to study the feasibility and adopt the utilization of membrane technology in water treatment. There are still many challenges to overcome, particularly on the much higher capital and operational cost of membrane technology compared to the conventional water treatment system. This review aims to delve into the progress of membrane technology for water treatment systems, particularly in developing countries. It first concentrates on membrane classification and its application in water treatment, including membrane technology progress for large-scale water treatment systems. Then, the fouling issue and ways to mitigate the fouling will be discussed. The feasibility of membrane technologies in developing countries was then evaluated, followed by a discussion on the challenges and opportunities of the membrane technology implementation. Finally, the current trend of membrane research was highlighted to address future perspectives of the membrane technologies for clean water production.

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Water conservation in mining industry by integrating pressure-oriented membrane processes for nitrogen-contaminated wastewater treatment: Bench and pilot-scale studies

Cited by 12 publications

References 33 publications

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

A Review on the Use of Membrane Technology Systems in Developing Countries

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