Showing papers on "Geothermal desalination published in 1982"
TL;DR: In this paper, a simple DC power arrangement for the complete system has been shown to be effective, and the authors believe this demonstration system is just the start to more and larger solar powered reverse osmosis desalination systems.
39 citations
TL;DR: In this article, a preliminary economic study using geothermal hot brine sources for desalination is presented, and the two cases evaluated are for a 110°C brine source and for a 130°C source.
35 citations
18 citations
TL;DR: The Puraq seawater desalination process is based on the liquid-liquid extraction of product water using a polymeric solvent, custom-synthesized to satisfy a particular set of design conditions, namely maximum seawater temperature and salinity as discussed by the authors.
11 citations
TL;DR: In this article, the reverse osmosis (RO) process is used for seawater desalination and the RO process requires only 5 −7 KWh/m 3 of product water compared to 15 −16 KWh /m 3 required by the most efficient distillation process.
11 citations
Patent•
20 Dec 1982
TL;DR: In this article, the reverse osmosis membrane was treated with acid and a solution of hydrolyzable tannin, and the results showed that the acid acid was more effective than the tANNIN.
Abstract: In the desalination of sea water using a reverse osmosis device, the treatment of the reverse osmosis membrane with acid and a solution of hydrolyzable tannin.
5 citations
Patent•
21 Jan 1982
TL;DR: In this article, a reverse osmosis-based device for the submarine desalination of seawater, based on reverse Osmosis, takes the energy required for the Desalination process from a relative motion between the device, immersed in depth, and the seawater surrounding it.
Abstract: A device for the submarine desalination of seawater, based on reverse osmosis, takes the energy required for the desalination process from a relative motion between the device, immersed in depth, and the seawater surrounding it. The energy can be supplied by a propeller turbine driven by the seawater flowing through it or by a partly or entirely wind-propelled vehicle on the surface, towing the device. This simplifies the design of submarine reverse osmosis plant which produces desalinated seawater with a min. of costs for power and maintenance.
4 citations
01 Jul 1982
TL;DR: In this paper, the combination of solid waste energy recovery utilizing modular combustion units and brackish water desalination using the reverse osmosis process can cancel out the energy-related negative aspects of both technologies.
Abstract: Introduced is the concept of combining solid-waste energy recovery with brackish water desalination for water supply improvement. The history of such plants is briefly detailed, and performance and operating cost data of several existing desalination plants is given. It is concluded that the combination of solid waste energy recovery utilizing modular combustion units and brackish water desalination using the reverse osmosis process can cancel out the energy-related negative aspects of both technologies. Furthermore, with innovative planning and adequate political, financial and technical leadership, communities that meet criteria outlined in the report can convert a waste disposal problem into a resource for the betterment of the community and its surrounding neighbors.
3 citations
2 citations
1 citations
01 Jan 1982
TL;DR: In this article, a photovoltaic powered water desalination plant is operated jointly as a "remote stand alone system" at Concepcion del Oro in the Mexican Federal State of Zacatecas.
Abstract: In the framework of a Mexican-German agreement for scientific and technical cooperation a photovoltaic powered water desalination plant is operated jointly as a “remote stand alone system” at Concepcion del Oro in the Mexican Federal State of Zacatecas. The solar cell array with a peak power of 2.4 kW and a total area of 30 m2 has been designed and fabricated by AEG-TELEFUNKEN. The reverse osmosis desalination plant using one module of plate and frame configuration was developed by the GKSS research center at Geesthacht. The pretreatment system of the raw water, which is brackish water from a well at the test site, and the preparation of the site was done by the desalination agency of the Mexican Government DIGAASES (Direccion General de Aprovechamiento de Aguas Salinas y Energia Solar). The main objective of the plant with a fresh water output of approximately 1.5 m3 per day is to demonstrate the reliability and the low maintenance requirements of a photovoltaic powered water desalination plant for the fresh water supply of a small remote community without conntction to the public grid.
Abstract: The industrial use of geothermal energy for process heating in New Zealand is anticipated to double, and possibly treble, over the next 15 years. The forest processing industries are likely to remain the largest users, as maturing exotic forests exist close to the known geothermal fields. DSIR engineers have recognized the need to improve the technology used in these geothermal energy supply plants. Development projects are aimed at raising the thermal efficiency and reducing the environmental impact of the existing single-flash recovery system. Projects implemented include performance monitoring of production geothermal heat exchangers, field testing of an experimental heat exchanger, and demonstration of silica and arsenic removal processes to treat geothermal water. Future advances are illustrated by a simple model for a process steam generation plant which would be a common operation for any industrial user. Flow sheets are presented to compare the merits of multiflash, total flow, and cascade heat exchanger systems combined with both reinjection and surface disposal methods for the geothermal effluents. End_of_Article - Last_Page 965------------