Pilot testing of a novel Multi Effect Distillation (MED) technology for seawater desalination

Aly, Shahzada Pamir; Manzoor, Husnain; Simson, Simjo; Abotaleb, Ahmed; Lawler, Jenny; Mabrouk, Abdel Nasser

doi:10.1016/j.desal.2021.115221

Cited by 43 publications

(9 citation statements)

References 20 publications

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“…Aly Sh. et al [ 26 ] presented a new design for the tube bundle of a MED facility consisting of three cells (stages) simulated and installed as an advanced pilot project in Qatar with a nominal capacity of 25 m 3 /day (0.28 kg/s)–42 m 3 /day (0.48 kg/s) per cell at a top brine temperature of 65 °C. The results show that distillate production varies can reach 475 L per hour as its maximum after 5–6 h to reach steady state, as shown in Figure 12 , where the desalination rate in the first couple of hours was 100 L/hr.…”

Section: Resultsmentioning

confidence: 99%

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Water Desalination Using the Once-through Multi-Stage Flash Concept: Design and Modeling

2022

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Thermal water desalination is one of the most important techniques to solve the water scarcity problem in many regions of the world. Out of around 7.8 billion people in the world, only about 6 billion of them have access to clean water; notably, climate change plays a major role in accelerating the evaporation rate of water from water bodies, which in turn increases the scarcity. Multi-stage flash, recognized to have a high rate of water production in comparison with other available technologies, accounts for 35% of water desalination facilities worldwide. This paper presents a detailed Excel model to evaluate the amount of energy required to drive 16 stages of multi-stage flash. This model aims to design and evaluate the amount of thermal energy required for such projects and optimize their performance by calibrating the governing parameters. Furthermore, the 16 stages were simulated via the Ebsilon 13.02 software package to match the results and evaluate the fulfillment of the plant requirements. The temperature drop of the brine stream was 2.34 °C/stage. The top brine temperature was 130 °C. The results show that 29.5 kg/s of superheated steam is required to desalinate 162 kg/s of 2500 kg/s influent mass flow of brine. The effect of water intake temperature was also examined by using Ebsilon. The performance ratio decreased from 5.49 to 2.66 when the water intake temperature decreased from 30 °C to 5 °C.

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Section: Resultsmentioning

confidence: 99%

“… Distillate water production for one cell of a MED facility during 10 operation hours, adapted from [ 26 ]. …”

Section: Figurementioning

confidence: 99%

Water Desalination Using the Once-through Multi-Stage Flash Concept: Design and Modeling

2022

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“…Similarly, when discard brine from thermally filtration systems is 25% hotter than feed saltwater, the temperature effectiveness of the Memsys system was observed to be rather high. For instance, in Qatar, the conductivity of the input brine was roughly a thousand times that of the distillate, that could be utilized to subsidize industrial water production [40]. The overall water output of the sustainable and renewable energy saltwater desalination process in Abu Dhabi, UAE, was 1060 m 3 daily, combining different membrane technologies (MF, UF, RO, and MD).…”

Section: Pilot-scale Membrane Distillation Applicationsmentioning

confidence: 99%

The Pilot-Scale Membrane Distillation Systems for Wastewater Treatment: A Mini-Review

Adam

Shafie

Hubadillah

et al. 2023

AMST

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Industrial wastewater includes large amounts of contaminants thus, the wastewater must be treated prior to disposal. Moreover, since a substantial volume of wastewater is generated, environmental considerations should include the reutilizing of reclaimed water. Since industrial wastewater consists mostly of chemicals and persistent contaminants, it must be adequately treated with eco-friendly technology. Membrane technologies, specifically membrane distillation, are frequently employed in the treatment of industrial wastewater due to their significant benefits over typical wastewater remediation approaches. The substantial investigation completed to date has been undertaken on a lab scale, however, both full and pilot-scale practices have already been implemented progressively. This study presents a concise overview of industrial wastewater treatment and its utilization following proper handling by membrane processes in both full and pilot-scale relevance. In addition, the future prospects and existing obstacles for membrane processes, including cleansing techniques and financial impact, are also studied. In addition, given that there are fewer full-scale trials than pilot-scale studies, process flaws are highlighted to facilitate future research investigations.

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“…3 Many desalination technologies have been developed for the production of fresh water. Currently used in seawater desalination technology are mainly thermal distillation 4 and membrane separation. 5 However, these two desalination technologies are difficult to be applied on a large scale in remote areas due to high energy consumption, complex process, and high cost.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Lignocellulose-Based Sponge Coated with Polypyrrole for Efficient Solar Steam Generation

Yang

Chu

et al. 2022

ACS Appl. Polym. Mater.

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Solar evaporative desalination technology is one of the most promising technologies to alleviate freshwater shortages, but the preparation of an inexpensive and sustainable 3D substrate remains a challenge. Lignocellulosic sponge (LS) is a commercial product that is widely available, clean, renewable, degradable, inexpensive, and porous. In this work, LS was found to be a good substrate for photothermal evaporation. LS has good compatibility with polypyrrole (PPy), which has excellent photothermal conversion performance. A simple and effective photothermal conversion evaporator (PPy-LS) was obtained by in situ polymerization of pyrrole on the surface of LS by chemical oxidation. The as-prepared PPy-LS exhibited good light absorption and thermal management capabilities, possessing an evaporation rate of 1.85 kg m −2 h −1 and an evaporation efficiency of 88.65% at 1 sunlight. PPy-LS also had excellent mechanical properties, superhydrophilicity, and water absorption. Combined with its porous network structure, PPy-LS exhibited good salt tolerance in 10 wt % NaCl solution and excellent thermal management capability. The PPy-LS solar evaporation device has the advantages of a simple preparation method, good durability, and sustainability, which provides an important direction for solar interface evaporation.

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Pilot testing of a novel Multi Effect Distillation (MED) technology for seawater desalination

Cited by 43 publications

References 20 publications

Water Desalination Using the Once-through Multi-Stage Flash Concept: Design and Modeling

Water Desalination Using the Once-through Multi-Stage Flash Concept: Design and Modeling

The Pilot-Scale Membrane Distillation Systems for Wastewater Treatment: A Mini-Review

Sustainable Lignocellulose-Based Sponge Coated with Polypyrrole for Efficient Solar Steam Generation

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