Economic analysis of desalination technologies in the context of carbon pricing, and opportunities for membrane distillation

Kesieme, Uchenna; Milne, Nicholas; Aral, Hal; Cheng, Chu Yong; Duke, Mikel

doi:10.1016/j.desal.2013.03.033

Cited by 216 publications

(143 citation statements)

References 32 publications

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“…Filtration may also be used to remove scaling the bulk, such as in the study by Kesieme et al where a cartridge filter captured calcium scale, allowing high recovery of groundwater RO concentrate with MD [127]. While ultrafiltration is good for removing suspended solids and colloids, NF can be an effective pretreatment for rejecting organic matter and removing hardness from feed water.…”

Section: Micro/nano Filtration Pre-treatmentmentioning

confidence: 99%

Scaling and fouling in membrane distillation for desalination applications: A review

et al. 2015

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Section: Micro/nano Filtration Pre-treatmentmentioning

confidence: 99%

Scaling and fouling in membrane distillation for desalination applications: A review

et al. 2015

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“…On the other hand, regarding the O&M cost estimate, the waste disposal cost is not included in this study despite the fact that it accounts for a remarkable proportion (3~19%) of the total O&M cost. This is based on the fact that, to some extent, the cost of brine disposal could be partially or fully offset by the profits from selling salt from the desalination by-products [28,29]. Moreover, considering the diversity of the environmental problems of different countries caused by brine discharge and its varied processes, it is nearly impossible to identify a standard quantitative cost of waste disposal.…”

Section: Data Limitations and Uncertaintiesmentioning

confidence: 99%

An Economic Assessment of the Global Potential for Seawater Desalination to 2050

Gao

Yoshikawa

Iseri

et al. 2017

Water

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Seawater desalination is a promising approach to satisfying water demand in coastal countries suffering from water scarcity. To clarify its potential future global scale, we perform a detailed investigation of the economic feasibility of desalination development for different countries using a feasibility index (F i ) that reflects a comparison between the price of water and the cost of production. We consider both past and future time periods. For historical validation, F i is first evaluated for nine major desalination countries; its variation is in good agreement with the actual historical development of desalination in these countries on both spatial and temporal scales. We then simulate the period of 2015-2050 for a Shared Socioeconomic Pathway (SSP2) and two climate scenarios. Our projected results suggest that desalination will become more feasible for countries undergoing continued development by 2050. The corresponding total global desalination population will increase by 3.2-fold in 2050 compared to the present (from 551.6 × 10 6 in 2015 to 1768 × 10 6 ). The major spread of seawater desalination to more countries and its availability to larger populations is mainly attributed to the diminishing production costs and increasing water prices in these countries under the given socioeconomic/climate scenarios.

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“…Thus, water flux in MD is negligibly affected by the feed water salinity. In other words, MD can be used for desalinating hypersaline feed streams or to achieve high water recovery desalination [11][12][13][14][15][16]. Given the discontinuity of the liquid phase across the membrane and a small hydraulic pressure on the membrane surface, MD is less susceptible to membrane fouling compared to RO, and hence does not require extensive pre-treatment [7].…”

Section: Introductionmentioning

confidence: 99%

Optimising thermal efficiency of direct contact membrane distillation by brine recycling for small-scale seawater desalination

Duong

Cooper

Nelemans³

et al. 2015

Desalination

118

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A technique to optimise thermal efficiency using brine recycling during direct contact membrane distillation (DCMD) of seawater was investigated. By returning the hot brine to the feed tank, the system water recovery could be increased and the sensible heat of the hot brine was recovered to improve thermal efficiency. The results show that in the optimal water recovery range of 20 to 60% facilitated by brine recycling, the specific thermal energy consumption of the process could be reduced by more than half. It is also noteworthy that within this optimal water recovery range, the risk of membrane scaling is negligible -DCMD of seawater at a constant water recovery of 70% was achieved for over 24. h without any scale formation on the membrane surface. In contrast, severe membrane scaling was observed when water recovery reached 80%. In addition to water recovery, other operating conditions such as feed temperature and water circulation rates could influence the process thermal efficiency. Increasing the feed temperature and reducing the circulation flow rates increased thermal efficiency. Increasing the feed temperature could also mitigate the negative effect of elevated feed concentration on the distillate flux, particularly at a high water recovery. Abstract:A technique to optimise thermal efficiency using brine recycling during direct contact membrane distillation (DCMD) of seawater was investigated. By returning the hot brine to the feed tank, the system water recovery could be increased and the sensible heat of the hot brine was recovered to improve thermal efficiency. The results show that in the optimal water recovery range of 20 to 60% facilitated by brine recycling, the specific thermal energy consumption of the process could be reduced by more than half. It is also noteworthy that within this optimal water recovery range, the risk of membrane scaling is negligible  DCMD of seawater at a constant water recovery of 70% was achieved for over 24 hours without any scale formation on the membrane surface. In contrast, severe membrane scaling was observed when water recovery reached 80%. In addition to water recovery, other operating conditions such as feed temperature and water circulation rates could influence the process thermal efficiency. Increasing the feed temperature and reducing the circulation flow rates increased thermal efficiency. Increasing the feed temperature could also mitigate the negative effect of elevated feed concentration on the distillate flux, particularly at a high water recovery.

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Economic analysis of desalination technologies in the context of carbon pricing, and opportunities for membrane distillation

Cited by 216 publications

References 32 publications

Scaling and fouling in membrane distillation for desalination applications: A review

Scaling and fouling in membrane distillation for desalination applications: A review

An Economic Assessment of the Global Potential for Seawater Desalination to 2050

Optimising thermal efficiency of direct contact membrane distillation by brine recycling for small-scale seawater desalination

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