Narrow bandgap semiconductor decorated wood membrane for high-efficiency solar-assisted water purification

2018 ◽  
Vol 6 (39) ◽  
pp. 18839-18846 ◽  
Author(s):  
Hanwen Liu ◽  
Chaoji Chen ◽  
Huang Wen ◽  
Ruixue Guo ◽  
Nick A. Williams ◽  
...  
Keyword(s):  
Water Purification ◽  
High Efficiency ◽  
Sea Water ◽  
Semiconductor Nanoparticles ◽  
Water Desalination ◽  
Wood Substrate ◽  
Narrow Bandgap ◽  
Wood Membrane

The solar evaporator combining narrow bandgap semiconductor nanoparticles with wood substrate exhibits high efficiency for sea water desalination.

scholarly journals Design and Experiment of Reverse Osmosis Seawater Desalination Unit for Water Supply System of Heat Recovery Boiler of Steam Injection Gas Turbine (STIG) Plant

1997 ◽  
Author(s):  
Niu Limin ◽  
Zheng Qun
Keyword(s):  
Power Plant ◽  
Reverse Osmosis ◽  
Heat Recovery ◽  
High Efficiency ◽  
Sea Water ◽  
Steam Injection ◽  
Water Desalination ◽  
Heat Recovery Boiler ◽  
Fine Filter ◽  
Recovery Boiler

STIG power plant is a competitive choice for commercial use because of its inherent characteristics and high efficiency. But if it was to be a marine propulsive engine, a fresh water supplying system should be provided for the heat recovery boiler. A two stage experimental reverse osmosis (RO) sea water desalination system which consist of an RO membrane and fine filter and super fine filter etc. is established. The experiments on the system and measurements of the desalination water quality indicate that the RO desalination system is suitable for marine STIG power plant. Some design and experimental problems and experimental results are presented and discussed in this paper.

scholarly journals Graphene and related 2D materials for desalination : A review of recent patents

2020 ◽  
Author(s):  
Amall Ramanathan ◽  
Maha Aqra
Keyword(s):  
Energy Demand ◽  
High Efficiency ◽  
Sea Water ◽  
2D Materials ◽  
Water Desalination ◽  
Low Energy ◽  
Theoretical Studies ◽  
Great Progress ◽  
Experimental And Theoretical Studies ◽  
Growing Population

<p></p><p>The growing population and energy demand, coupled with the depleting fresh water resources has resulted in great progress in sea water desalination (SWD) technologies. Nanopores of 2D materials like graphene and its structural analogs are the latest innovations in membrane technology for SWD. The performance of these novel atomically thin nanopores as seen from various experimental and theoretical studies is highly encouraging with reports of water permeability 2-3 orders of magnitude greater than the conventional reverse osmosis (RO). The potential for high efficiency and the low energy requirements of these nanopores for desalination has led to tremendous efforts in fabrication and commercialization. We present here a review of the very recent patents associated with the preparation of these nanopores, the process and the efficiency of SWD. </p><br><p></p>

scholarly journals Graphene and related 2D materials for desalination : A review of recent patents

2020 ◽  
Author(s):  
Amall Ramanathan ◽  
Maha Aqra
Keyword(s):  
Energy Demand ◽  
High Efficiency ◽  
Sea Water ◽  
2D Materials ◽  
Water Desalination ◽  
Low Energy ◽  
Theoretical Studies ◽  
Great Progress ◽  
Experimental And Theoretical Studies ◽  
Growing Population

<p></p><p>The growing population and energy demand, coupled with the depleting fresh water resources has resulted in great progress in sea water desalination (SWD) technologies. Nanopores of 2D materials like graphene and its structural analogs are the latest innovations in membrane technology for SWD. The performance of these novel atomically thin nanopores as seen from various experimental and theoretical studies is highly encouraging with reports of water permeability 2-3 orders of magnitude greater than the conventional reverse osmosis (RO). The potential for high efficiency and the low energy requirements of these nanopores for desalination has led to tremendous efforts in fabrication and commercialization. We present here a review of the very recent patents associated with the preparation of these nanopores, the process and the efficiency of SWD. </p><br><p></p>

Static Converter for High Energy Utilization, Modular, Small Nuclear Power Plants

2002 ◽  
Author(s):  
Mohamed S. El-Genk ◽  
Jean-Michel P. Tournier
Keyword(s):  
Power Plants ◽  
High Efficiency ◽  
Sea Water ◽  
Thermal Power ◽  
Ambient Air ◽  
High Energy ◽  
Water Desalination ◽  
Energy Utilization ◽  
Space Heating ◽  
Thermodynamic Efficiency

This paper presents and analyzes the performance of high efficiency, high total energy utilization, static converters, which could be used in conjunction with small nuclear reactor plants in remote locations and in undersea applications, requiring little or no maintenance. The converters consist of a top cycle of Alkali Metal Thermal-to-Electric Conversion (AMTEC) units and PbTe thermoelectric (TE) bottom cycle. In addition to converting the reactor thermal power to electricity at 1150 K or less, at a thermodynamic efficiency in the low to mid thirties, the heat rejection from the TE bottom cycle could be used for space heating, industrial processing, or sea water desalination. The results indicated that for space heating applications, where the rejected thermal power from the TE bottom cycle is removed by natural convection of ambient air, a total utilization of the reactor thermal power of &gt; 80% is possible. When operated at 1030 K, potassium AMTEC/TE converters are not only more efficient than the sodium AMTEC/TE converters but produce more electrical power. The present analysis showed that a single converter could be sized to produce up to 100 kWe and 70 kWe, for the Na-AMTEC/TE units when operating at 1150 K and the K-AMTEC/TE units when operating at 1030 K, respectively. Such modularity is an added advantage to the high-energy utilization of the present AMTEC/TE converters.

Graphene and Related 2D Materials for Desalination: A Review of Recent Patents

2020 ◽  
Vol 13 (3) ◽  
pp. 233-242
Keyword(s):  
Energy Demand ◽  
High Efficiency ◽  
Sea Water ◽  
2D Materials ◽  
Water Desalination ◽  
Low Energy ◽  
Theoretical Studies ◽  
Great Progress ◽  
Experimental And Theoretical Studies ◽  
Growing Population

Abstract: The growing population and energy demand, coupled with the depleting fresh water resources resulted in great progress in sea water desalination (SWD) technologies. Nanopores of 2D materials, like graphene and its structural analogs, are the latest innovations in membrane technology for SWD. The performance of these novel atomically thin nanopores, as seen from various experimental and theoretical studies, is highly encouraging with reports of water permeability 2-3 orders of magnitude greater than the conventional reverse osmosis (RO). The potential for high efficiency and the low energy requirements of these nanopores for desalination led to tremendous efforts in fabrication and commercialization. We present here a review of the very recent patents associated with the preparation of these nanopores, the process and the efficiency of SWD. Keywords: 2D nanopores, Graphene, Membrane, Patents, Desalination.

Study on the Demonstration of Seawater Desalination

2011 ◽  
Vol 183-185 ◽  
pp. 985-989 ◽  
Author(s):  
Ying Jie Dai ◽  
Tian Zhu Li ◽  
Run Qing Yang ◽  
De Li Chen ◽  
Li Long Yan ◽  
...  
Keyword(s):  
Power Plant ◽  
Circular Economy ◽  
Building Materials ◽  
High Efficiency ◽  
Sea Water ◽  
Raw Materials ◽  
Water Desalination ◽  
Leading Role ◽  
Industrial Chain ◽  
Comprehensive Development

In this study, the marine circular economy mode of marine industries was investigated by using utilization of Tianjin Beijiang Power Plant. Tianjin Beijiang Power Plant, taking the effective and circular utilization of resources as core, depending on the regional industrial advantage, expanding the industrial chain continually and making itself play the leading role, perfectly combines sea water desalination, salt making, salt chemical products, building materials and some other items, thereby making the wastes of by-products of former processes the raw materials of latter processes. In this way, the power plant has found a new road of circular economy characterized by maximum resource utilization, minimum waste discharge and optimal economic benefit. The project meets the 3R rules of circular economy, i.e. “high efficiency, low consumption and low pollution”, and its project combining electric power, water and salt is first-ever in China and a typical circular economy project and an ecological project as well, presenting an important demonstration significance and promotion value for the comprehensive development of circular economy.

scholarly journals Study of the Ecological Footprint and Carbon Footprint in a Reverse Osmosis Sea Water Desalination Plant

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 377
Author(s):  
Federico Leon ◽  
Alejandro Ramos-Martin ◽  
Sebastian Ovidio Perez-Baez
Keyword(s):  
Reverse Osmosis ◽  
Canary Islands ◽  
Ecological Footprint ◽  
Sea Water ◽  
Water Desalination ◽  
Energy Costs ◽  
Generation System ◽  
Negative Part ◽  
Desalination Plant ◽  
Materials Used

The water situation in the Canary Islands has been a historical problem that has been sought to be solved in various ways. After years of work, efforts have focused on desalination of seawater to provide safe water mainly to citizens, agriculture, and tourism. Due to the high demand in the Islands, the Canary Islands was a pioneering place in the world in desalination issues, allowing the improvement of the techniques and materials used. There are a wide variety of technologies for desalination water, but nowadays the most used is reverse osmosis. Desalination has a negative part, the energy costs of producing desalinated water are high. To this we add the peculiarities of the electricity generation system in the Canary Islands, which generates more emissions per unit of energy produced compared to the peninsular generation system. In this study we have selected a desalination plant located on the island of Tenerife, specifically in the municipality of Granadilla de Abona, and once its technical characteristics have been known, the ecological footprint has been calculated. To do this we have had to perform some calculations such as the capacity to fix carbon dioxide per hectare in the Canary Islands, as well as the total calculation of the emissions produced in the generation of energy to feed the desalination plant.

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