Technical and economic trends of sea water desalting in the '90s

Liberti, L.; Passino, R.; Santori, M.; Boari, G.

doi:10.1016/0011-9164(85)80094-1

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…The cost includes only the equipment capital investment. This cost data is based on 1987 prices [20,21,22,23,24] on a performance ratio of the Multi Stage Flash plant of 7, and on feed water for Reverse Osmosis plant of 43000 ppm. All dual purpose plants assume gas turbines.…”

Section: Resultsmentioning

confidence: 99%

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Humidification-dehumidification desalination process using waste heat from a gas turbine

El-Dessouky

1989

Desalination

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This paper presents a humidification-dehumidification desalination process using waste heat from a gas turbine power plant. In this process, the air is used as the operating fluid instead of water. The process has many advantages over many desalination processes which use waste heat from gas turbines.The amount of fresh water produced and the mass of air-gas mixture leaving the desalination plant were found to decrease with decreasing gas turbine load and with increasing mixing temperature. The air-gas mixture can be safely used in space air conditioning. The specific power consumption of the proposed process was found to be less than that of either single or dual Multi-Stage Flash (MSF) plants. It is greater however, than that of all types of Reverse Osmosis (RO) plants. The specific capital investment of the process is found to be less than that for any other desalination process considered. The ratio of water production to power generation in the present process is nevertheless very small.

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Section: Resultsmentioning

confidence: 99%

“…Z = ( HTU) ( NTU) g g (22) Z = (HTU) 1 (NTU) 1 (23) in which Z is the height of packing material in the tower, and (HTU) and (NTU) are the respective height and number of the transfer units. The choice of the appropriate equation depends upon the form in which the mass transfe·· coefficient is introduced.…”

Section: Process Design Of Main Componentsmentioning

confidence: 99%

Humidification-dehumidification desalination process using waste heat from a gas turbine

El-Dessouky

1989

Desalination

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Environmental impact of seawater desalination plants

Al-Mutaz

1991

Environ Monit Assess

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Enormous amounts of seawater are desalted everyday worldwide. The total world production of fresh water from the sea is about 2621 mgd (9.92 million m(3) day(-1) 1985 figures). Desalting processes are normally associated with the rejection of high concentration waste brine from the plant itself or from the pretreatment units as well as during the cleaning period. In thermal processes, mainly multistage flash (MSF) thermal pollution occurs. These pollutants increase the seawater temperature, salinity, water current and turbidity. They also harm the marine environment, causing fish to migrate while enhancing the presence of algae, nematods and tiny molluscus. Sometimes micro-elements and toxic materials appear in the discharged brine.This paper will discuss the impact of the effluents from the desalination plants on the seawater environment with particular reference to the Saudi desalination plants, since they account for about 50% of the world desalination capacity.

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Technical and economic trends of sea water desalting in the '90s

Cited by 2 publications

References 10 publications

Humidification-dehumidification desalination process using waste heat from a gas turbine

Humidification-dehumidification desalination process using waste heat from a gas turbine

Environmental impact of seawater desalination plants

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