Energy consumption by forward osmosis treatment of landfill leachate for water recovery

Iskander, Syeed Md; Zou, Shiqiang; Brazil, Brian; Novak, John T.; He, Zhen

doi:10.1016/j.wasman.2017.03.026

Cited by 67 publications

(28 citation statements)

References 29 publications

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“…The FO process is applied for the osmotic dilution or the pre-treatment of seawater for hybrid FO-RO and multi-effect desalination plants [16,17]. Apart from desalination, currently, FO is utilized for the treatment of secondary or tertiary sewage effluent [18], landfill leachate water [19,20], and wastewater [21,22]. As mentioned above, since the energy consumption is low, zero liquid discharge systems make FO a sustainable technology for reclaiming wastewater treatment [16,23].…”

Section: =mentioning

confidence: 99%

Organic Fouling in Forward Osmosis: A Comprehensive Review

Yadav

Ibrar

Bakly

et al. 2020

Water

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Organic fouling in the forward osmosis process is complex and influenced by different parameters in the forward osmosis such as type of feed and draw solution, operating conditions, and type of membrane. In this article, we reviewed organic fouling in the forward osmosis by focusing on wastewater treatment applications. Model organic foulants used in the forward osmosis literature were highlighted, which were followed by the characteristics of organic foulants when real wastewater was used as feed solution. The various physical and chemical cleaning protocols for the organic fouled membrane are also discussed. The study also highlighted the effective pre-treatment strategies that are effective in reducing the impact of organic fouling on the forward osmosis (FO) membrane. The efficiency of cleaning methods for the removal of organic fouling in the FO process was investigated, including recommendations on future cleaning technologies such as Ultraviolet and Ultrasound. Generally, a combination of physical and chemical cleaning is the best for restoring the water flux in the FO process.

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Section: =mentioning

confidence: 99%

Organic Fouling in Forward Osmosis: A Comprehensive Review

Yadav

Ibrar

Bakly

et al. 2020

Water

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“…With the growing amount of municipal solid waste being disposed into landfills, the production of undesirable landfill leachate containing a range of persistent contaminants has also got more serious [143]. It has been reported that the FO membrane process could be employed to concentrate the landfill leachate though the process suffered from membrane fouling issues [144]. In a study conducted by , activated carbon (AC) and biochar (BC) have been integrated with FO process as pretreatment to alleviate the membrane fouling issues [133].…”

Section: Fo Fouling Mitigationmentioning

confidence: 99%

Unlocking the application potential of forward osmosis through integrated/hybrid process

Ang

Mohammad

Johnson

et al. 2020

Science of The Total Environment

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Study of forward osmosis (FO) has been increasing steadily over recent years with applications mainly focusing on desalination and wastewater treatment processes. The working mechanism of FO lies in the natural movement of water between two streams with different osmotic pressure, which makes it useful in concentrating or diluting solutions. FO has rarely been 2 operated as a stand-alone process. Instead, FO processes often appear in a hybrid or integrated form where FO is combined with other treatment technologies to achieve better overall process performance and cost savings. This article aims to provide a comprehensive review on the need for hybridization/integration for FO membrane processes, with emphasis given to process enhancement, draw solution regeneration, and pretreatment for FO fouling mitigation. In general, integrated/hybrid FO processes can reduce the membrane fouling propensity; prepare the solution suitable for subsequent value-added uses and production of renewable energy; lower the costs associated with energy consumption; enhance the quality of treated water; and enable the continuous operation of FO through the regeneration of draw solution. The future potential of FO lies in the success of how it can be hybridized or integrated with other technologies to minimize its own shortcomings, while enhancing the overall performance.

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“…However, one of the major challenges of nutrients and energy recovery from wastewater is the low-strength nature of wastewater, which not only impacts the recovery efficiency but also increases the construction cost for building reactors with large volumes [ 4 ]. Therefore, it is critical to find an effective approach to increase the concentration of matters such as chemical oxygen demand (COD) and nutrients (nitrogen and phosphorus) [ 4 , 7 ]. Membrane-based technology including microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO) have been studied and applied for various sources of wastewater treatment, including landfilling leachate [ 8 , 9 ] and textile wastewater [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

State-of-the-Art and Opportunities for Forward Osmosis in Sewage Concentration and Wastewater Treatment

Lau

Pramanik

et al. 2021

Membranes

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The application of membrane technologies for wastewater treatment to recover water and nutrients from different types of wastewater can be an effective strategy to mitigate the water shortage and provide resource recovery for sustainable development of industrialisation and urbanisation. Forward osmosis (FO), driven by the osmotic pressure difference between solutions divided by a semi-permeable membrane, has been recognised as a potential energy-efficient filtration process with a low tendency for fouling and a strong ability to filtrate highly polluted wastewater. The application of FO for wastewater treatment has received significant attention in research and attracted technological effort in recent years. In this review, we review the state-of-the-art application of FO technology for sewage concentration and wastewater treatment both as an independent treatment process and in combination with other treatment processes. We also provide an outlook of the future prospects and recommendations for the improvement of membrane performance, fouling control and system optimisation from the perspectives of membrane materials, operating condition optimisation, draw solution selection, and multiple technologies combination.

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Energy consumption by forward osmosis treatment of landfill leachate for water recovery

Cited by 67 publications

References 29 publications

Organic Fouling in Forward Osmosis: A Comprehensive Review

Organic Fouling in Forward Osmosis: A Comprehensive Review

Unlocking the application potential of forward osmosis through integrated/hybrid process

State-of-the-Art and Opportunities for Forward Osmosis in Sewage Concentration and Wastewater Treatment

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