RO system scaling with focus on the concentrate line: Current challenges and potential solutions

Alshami, Ali; Taylor, Trevor; Ismail, Nadhem; Buelke, Chris; Schultz, Ligia

doi:10.1016/j.desal.2021.115370

Cited by 31 publications

(3 citation statements)

References 69 publications

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“…Further elemental composition analysis via EDS (shown in Table 4) showed that C, O, Ca, Fe, Al, and Si were the major elements of these particles, implying the occurrence of carbonate scaling. Inorganic scaling, such as of carbonate and sulfate, was the common fouling phenomena on the RO membrane for seawater desalination and wastewater reuse as well [27,28]. As shown in Figure 5, some particles including big prisms and small spheres were found on both fouled RO membranes.…”

Section: Reproducibility and Fouling Development Of Candidate Ro Memb...mentioning

confidence: 97%

Evaluation of Different Reverse Osmosis Membranes for Textile Dyeing and Finishing Wastewater Reuse

et al. 2023

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Different commercial reverse osmosis (RO) membranes from Vontron and DuPont Filmtec were evaluated for textile dyeing and finishing wastewater (TDFW) reuse in China. All six tested RO membranes produced qualified permeate meeting TDFW reuse standards at a water recovery ratio (WRR) of 70% in single batch tests. The rapid decline of apparent specific flux at WRR over 50% was mainly ascribed to feed osmotic pressure increase caused by concentrating effects. Multiple batch tests using Vontron HOR and DuPont Filmtec BW RO membranes with comparable permeability and selectivity demonstrated the reproducibility and showed low fouling development. The occurrence of carbonate scaling on both RO membranes was identified by scanning electron microscopy and energy disperse spectroscopy. No obvious organic fouling was detected on both RO membranes by attenuated total reflectance Fourier transform infrared spectrometry. From the orthogonal tests, with an integrated RO membrane performance index (i.e., 25% rejection ratio of total organic carbon + 25% rejection ratio of conductivity + 50% flux ratio of final to initial) as a target, the optimal parameters were determined as WRR of 60%, cross-flow velocity (CFV) of 1.0 m/s, temperature (T) of 20 °C for both RO membranes, while trans-membrane pressures (TMP) of 2 and 4 MPa were optimal for Vontron HOR RO membrane and DuPont Filmtec BW RO membrane, respectively. Both RO membranes with the optimal parameters produced good permeate quality for TDFW reuse and kept a high flux ratio of final to initial, demonstrating the effectiveness of the orthogonal tests.

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Section: Reproducibility and Fouling Development Of Candidate Ro Memb...mentioning

confidence: 97%

Evaluation of Different Reverse Osmosis Membranes for Textile Dyeing and Finishing Wastewater Reuse

et al. 2023

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“…Employing in-the-well multispectral remote sensing can be helpful in scale prediction and guided prevention since scale deposition in an oilfield is formed when incompatible types of water, specifically injection and formation water, are mixed under specific thermodynamic conditions [72]. The type and severity of the scale formed depends on the metal ions present and their concentrations in both the injection and formation water in addition to other factors, such as contaminants from corrosion products.…”

Section: ) Advanced Optical Sensorsmentioning

confidence: 99%

IoT-Based Water Management Systems: Survey and Future Research Direction

et al. 2022

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The Internet of Things (IoT) sustainable solutions are the next generation of methods for managing and monitoring valuable natural resources such as water. Research has focused on smart IoT-based water management and monitoring system designs for various types of applications, including agricultural, industrial, residential, and crude oil exploration sectors. To this end, unlike other surveys available in the literature, this work presents an all-encompassing analysis of 43 papers published between 2014 and 2022 for systems proposed to manage and monitor water in four different sectors: the agricultural, industrial, residential, and the oilfield sectors. In this work, we also propose a new optical water management system to address a gap in the literature, particularly for oilfield processes that require significant amounts of water to stimulate oil production. The proposed system employs an advanced optical technique for sensing and transmitting collected data. Overall, this work provides a seminal guide for future research efforts focused on integrating IoT in the field of water management and monitoring.

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“…To overcome these challenges, membrane separation as an efficient separation technology has become a research hotspot. In numerous lab-scale experiments, reverse osmosis (RO) and nanofiltration (NF) have been used to treat wastewater and concentrate liquids in a variety of applications. − However, the RO system for printing and dyeing wastewater is always confronted with more serious membrane fouling compared with RO systems used in other wastewater. High energy consumption is still the main obstacle for RO in wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

Resources Recycle of Printing and Dyeing Wastewater: UF/FO Hybrid System Optimization and TPA Recovery

et al. 2022

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Printing and dyeing wastewater has characteristics of high pH, poor biodegradability, complex composition, and a large amount of water, which means it remains a daunting environmental issue. The development of efficient and economic printing and dyeing wastewater treatment technology has gained considerable interest in the field of environmental protection. The performance of ultrafiltration/ forward osmosis (UF/FO) hybrid system focused on recycling valuable materials in actual printing and dyeing wastewater was investigated. The effects of pressure, temperature, membrane orientation, and feed pH on membrane performance were also studied. The results showed that the optimal pressure and temperature (T) are 0.15 MPa and 25 °C, respectively; active-layer facing feed solution (AL-FS) mode at pH 7 was used for a UF/FO hybrid system. The recovery of terephthalic acid (TPA) was 99.78% under pH 4. This paper provided a resourceful proposal for the treatment of printing and dyeing wastewater.

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RO system scaling with focus on the concentrate line: Current challenges and potential solutions

Cited by 31 publications

References 69 publications

Evaluation of Different Reverse Osmosis Membranes for Textile Dyeing and Finishing Wastewater Reuse

Evaluation of Different Reverse Osmosis Membranes for Textile Dyeing and Finishing Wastewater Reuse

IoT-Based Water Management Systems: Survey and Future Research Direction

Resources Recycle of Printing and Dyeing Wastewater: UF/FO Hybrid System Optimization and TPA Recovery

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