Research Abstracts

2181 - 2190 of 3156 results

Mechanical and thermal dewatering of residual sludge The management of residual sludge is an important subject. New environmental laws require the elimination of this waste by only two ways: incineration and agricultural use. In order to reach this goal, mechanical dewatering can be used as a first step due to its low energy cost. However, the final m Desalination 167 (2004)
Comparison of membrane options for water reuse and reclamation The reuse of effluents for irrigation and indirect potable water uses is rapidly developing as an alternative to seawater desalination. This paper explores two membrane-based options available to treat sewage for water reuse, tertiary filtration (TF) of the effluent from a conventional activated slu Desalination 167 (2004)
Nanofiltration and calcium sulfate limitation for top brine temperature in Gulf desalination plants All MSF desalination plants have been operated at a top brine temperature below 120°C. That is because of sulfate scaling phenomena, which usually occurs when the temperature is higher than 120°C. This type of scaling is hard scale that cannot be removed easily by chemical or mechanical cleaning. In Desalination 167 (2004)
Optimal design of cogeneration plants for seawater desalination Multi-stage flash (MSF) and reverse osmosis (RO) are the most common techniques for seawater desalination. A significant difference between these methodologies consists of their different energy requirements, i.e., thermal energy for MSF and mechanical energy for RO plants. The presence of both desa Desalination 166 (2004)
Design of plants for solar desalination using the multi-stage heating/humidifying technique a process flow sheet and a plan view are given. A preliminary study on further R&D actions and possible measures to enhance plant economy are also discussed. Desalination 168 (2004)
Set-up of a mid-field model to investigate the recirculation of effluents in the Mirfa power and desalination plant The Mirfa power and desalination plant was built in the Abu Dhabi Emirate, United Arab Emirates, in the early 1990s. Plant capacity is16.5 MGD. It was decided to increase the plant’s capacity to satisfy rapid urban and industrial development in the Emirate. A comprehensive study was carried out to i Desalination 166 (2004)
Thermodynamics of water sorption in clay Experimental data on desorption isotherms of three types of clay at different temperatures (40, 50 and 60°C) were determined using a static method. The results were fitted by the famous Guggenheim-Anderson-deBoer (GAB) model. The thermodynamic functions, differential heat of sorption, net integral e Desalination 166 (2004)
New electrokinetics tools for studying ageing of ED and NF membrane processes in contact with highly salted solutions from seawater We report the results of experiments conducted under the well known ACS ED membrane, using the membrane potential technique, in order to obtain the transference numbers of Na+ and Br! before and after lengthy filtration studies using brackish waters from France and Senegal. With a change of the Br! Desalination 167 (2004)
Integration of desalination with cold–heat–power production in the agro-food industry Several configurations of polygeneration systems, conceived for a dairy industry requiring cold, heat, power and water for its operation, are presented. For these systems, a single fuel is used to produce cold, steam (heat), electricity and water from a combined cycle integrated and optimized with h Desalination 166 (2004)
Nanofiltration of biologically treated textile effluents using ozone as a pre-treatment Water scarcity in Mediterranean areas such as Comunidad Valenciana (Spain) makes water reuse necessary in high water-consuming industries. Previous studies by our research group showed that nanofiltration (NF) membrane permeates could be reused in some processes of finishing, dyeing and printing in Desalination 167 (2004)

Mechanical and thermal dewatering of residual sludge

The management of residual sludge is an important subject. New environmental laws require the elimination of this waste by only two ways: incineration and agricultural use. In order to reach this goal, mechanical dewatering can be used as a first step due to its low energy cost. However, the final m

Desalination 167 (2004)

Comparison of membrane options for water reuse and reclamation

The reuse of effluents for irrigation and indirect potable water uses is rapidly developing as an alternative to seawater desalination. This paper explores two membrane-based options available to treat sewage for water reuse, tertiary filtration (TF) of the effluent from a conventional activated slu

Desalination 167 (2004)

Nanofiltration and calcium sulfate limitation for top brine temperature in Gulf desalination plants

All MSF desalination plants have been operated at a top brine temperature below 120°C. That is because of sulfate scaling phenomena, which usually occurs when the temperature is higher than 120°C. This type of scaling is hard scale that cannot be removed easily by chemical or mechanical cleaning. In

Desalination 167 (2004)

Optimal design of cogeneration plants for seawater desalination

Multi-stage flash (MSF) and reverse osmosis (RO) are the most common techniques for seawater desalination. A significant difference between these methodologies consists of their different energy requirements, i.e., thermal energy for MSF and mechanical energy for RO plants. The presence of both desa

Desalination 166 (2004)

Design of plants for solar desalination using the multi-stage heating/humidifying technique

a process flow sheet and a plan view are given. A preliminary study on further R&D actions and possible measures to enhance plant economy are also discussed.

Desalination 168 (2004)

Set-up of a mid-field model to investigate the recirculation of effluents in the Mirfa power and desalination plant

The Mirfa power and desalination plant was built in the Abu Dhabi Emirate, United Arab Emirates, in the early 1990s. Plant capacity is16.5 MGD. It was decided to increase the plant’s capacity to satisfy rapid urban and industrial development in the Emirate. A comprehensive study was carried out to i

Desalination 166 (2004)

Thermodynamics of water sorption in clay

Experimental data on desorption isotherms of three types of clay at different temperatures (40, 50 and 60°C) were determined using a static method. The results were fitted by the famous Guggenheim-Anderson-deBoer (GAB) model. The thermodynamic functions, differential heat of sorption, net integral e

Desalination 166 (2004)

New electrokinetics tools for studying ageing of ED and NF membrane processes in contact with highly salted solutions from seawater

We report the results of experiments conducted under the well known ACS ED membrane, using the membrane potential technique, in order to obtain the transference numbers of Na+ and Br! before and after lengthy filtration studies using brackish waters from France and Senegal. With a change of the Br!

Desalination 167 (2004)

Integration of desalination with cold–heat–power production in the agro-food industry

Several configurations of polygeneration systems, conceived for a dairy industry requiring cold, heat, power and water for its operation, are presented. For these systems, a single fuel is used to produce cold, steam (heat), electricity and water from a combined cycle integrated and optimized with h

Desalination 166 (2004)

Nanofiltration of biologically treated textile effluents using ozone as a pre-treatment

Water scarcity in Mediterranean areas such as Comunidad Valenciana (Spain) makes water reuse necessary in high water-consuming industries. Previous studies by our research group showed that nanofiltration (NF) membrane permeates could be reused in some processes of finishing, dyeing and printing in

Desalination 167 (2004)

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