A systematic approach towards optimization of brackish groundwater treatment using nanofiltration (NF) and reverse osmosis (RO) hybrid membrane filtration system

Srivastava, Alaka; Singh, Rajneesh; Rajput, Vishnu D.; Minkina, Tatiana; Agarwal, Shilpa; Garg, Manoj Chandra

doi:10.1016/j.chemosphere.2022.135230

Cited by 16 publications

(8 citation statements)

References 24 publications

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“…4, energy consumption decreased when increasing the %permeate recovery and applying less pressure to the system. This fact was already reported by other authors [47,51]. For instance, Srivastava et al [51] attributed an energy consumption increase due to pressure application, and consequently an increase in the permeate flow and recovery.…”

Section: Economic Analysissupporting

confidence: 70%

“…This fact was already reported by other authors [47,51]. For instance, Srivastava et al [51] attributed an energy consumption increase due to pressure application, and consequently an increase in the permeate flow and recovery. Furthermore, Song et al [47] determined that higher permeate recoveries implied lower specific energy consumption values.…”

Section: Economic Analysissupporting

confidence: 70%

See 1 more Smart Citation

Techno-Economic Analysis of Seawater Reverse Osmosis Brines Treatment Using Nanofiltration Modelling Tools

Figueira¹,

López²,

Reig³

et al. 2023

Preprint

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Section: Economic Analysissupporting

confidence: 70%

Section: Economic Analysissupporting

confidence: 70%

Techno-Economic Analysis of Seawater Reverse Osmosis Brines Treatment Using Nanofiltration Modelling Tools

Figueira¹,

López²,

Reig³

et al. 2023

Preprint

View full text Add to dashboard Cite

“…Recovery is a term used to describe the performance of the plant with regards to water production, hence it is a ratio of how much permeate is obtained as against the amount of feed supplied within a given time frame (Srivastava et al, 2022). Rejection and recovery are usually calculated as a percentage.…”

Section: Typical Plant Overviewmentioning

confidence: 99%

A review of spiral wound membrane modules and processes for groundwater treatment

Tabi,

Boakye,

Agyemang

et al. 2024

Front. Membr. Sci. Technol.

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The demand for freshwater keeps increasing on a global scale, and on the other hand, the availability of freshwater keeps diminishing. Groundwater has been identified as the largest source of freshwater that is readily accessible. Although the water is available for abstraction, it must be treated to meet application standards. Membrane processes are the options that industry and researchers are turning to for the purification of groundwater. This review provides an insight into the use of pressure-driven membrane processes for groundwater treatment, with focus on the spiral wound membrane module. A brief description of what a spiral wound module is and the plant set-up in which it is used is given. The various applications of the spiral wound module with regards to groundwater treatment have been reviewed. The shortcomings and challenges limiting the application of spiral wound modules and by extension, the treatment plant itself have been highlighted. To cap it all, the opportunities that can be exploited to overcome these challenges and position pressure-driven membrane processes for groundwater treatment as the go-to purification method have been discussed.

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“…Among these technologies, membrane separation is a highly promising technology due to its high separation efficiency. Though efficient, RO requires a high operating pressure and consumes considerable energy [ 20 , 23 , 24 ]. In contrast, the operating pressure for nanofiltration is much lower, and with its small footprint, nanofiltration can be easily achieved with automatic control, making it suitable for use in many fields [ 25 , 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Membrane Fouling Control for Brackish Water Treatment Using a Modified Polyamide Composite Nanofiltration Membrane

et al. 2022

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In northwest China, the limited amount of water resources are classified mostly as brackish water. Nanofiltration is a widely applied desalination technology used for brackish water treatment; however, membrane fouling restricts its application. Herein, we modified the membrane with triethanolamine (TEOA) and optimized the operating conditions (transmembrane pressure, temperature, and crossflow velocity) to control the nanofiltration membrane fouling by brackish water. Based on the physiochemical characteristics and desalination performance of the prepared membranes, the membrane modified with 2% TEOA (MPCM2) was identified as the optimal membrane, and 0.5 MPa, 25 °C, and 7 cm/s were identified as the optimal operating conditions through a series of nanofiltration experiments. Moreover, the membrane cleaning procedure for fouled MPCM2 was further determined, and a two-step cleaning procedure using ethylene diamine tetraacetic acid disodium followed by HCl with a permeance recovery rate of 98.77% was identified as the optimal cleaning procedure. Furthermore, the characterizations of the fouled and cleaned MPCM2 showed that the optimized cleaning procedure could recover the properties of MPCM2 to near virgin. This study is of great significance for the long-term stable operation of nanofiltration processes in brackish water treatment to ensure the supply of healthy water in the water-deficient areas of northwest China.

show abstract

A systematic approach towards optimization of brackish groundwater treatment using nanofiltration (NF) and reverse osmosis (RO) hybrid membrane filtration system

Cited by 16 publications

References 24 publications

Techno-Economic Analysis of Seawater Reverse Osmosis Brines Treatment Using Nanofiltration Modelling Tools

Techno-Economic Analysis of Seawater Reverse Osmosis Brines Treatment Using Nanofiltration Modelling Tools

A review of spiral wound membrane modules and processes for groundwater treatment

Evaluation of Membrane Fouling Control for Brackish Water Treatment Using a Modified Polyamide Composite Nanofiltration Membrane

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