Seawater

The paper, “Heat pumps as a source of heat energy for desalination of seawater”, was published in Desalination [Vol. 139, 2001]. In the paper, heat pumps using agent R12 or water and vapor were introduced to be used as a source of heat energy for desalination. The cyclic processes of heat pump were

The seawater extracted from a depth of 30 m has a constant temperature of about 18°C. This water can be used as cold source for the conditioning of Salammbô Museum aquariums (Tunisia). With this intention a passive system, using capillary polypropylene exchangers, is carried out. The tests show that

Water is an increasingly scarce resource and in many regions people are turning to new sources such as seawater and wastewater. Various membrane technology improvements in the last decade have led to a significant cost reduction in reverse osmosis (RO). This has triggered selection of seawater rever

This paper describes the construction and operation of shipboard desalination plants. This innovation provides a means of supplying s fresh water to almost every location on the Earth, especially to ports and towns on the shores of arid areas and deserts with hot and dry climatic conditions. The sys

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.

Our article deals with the possibilities to treat seawater using commercial nanofiltration polyamide membranes, denoted NF70 and NF 200, in order to elaborate usable salty aqueous solutions (from high concentrated solutions with total salinity around 70 g/L to isotonic solutions with total salinity

This paper presents an experimental and theoretical study of a pad humidifier used in a new multi-stage solar desalination process in operation in Tunisia. The experimental operation of the humidifier is presented in terms of temperature, relative and absolute humidity, and the quantity of evaporate

A development program of a small-scale desalination unit, formerly designed and manufactured, was adopted to reduce the production cost of water and minimize the deviation in the water characteristics. Process design and full engineering were performed; the system was manufactured locally. It was op

UNO has estimated fresh water deficit as 230 billion m3/y by the end of 21st century. It has been reported that about 10,000 people die every day and thousands suffer from scarcity of fresh water, as it has become one of the most critical problems in our planet. Desalination is an ideal solution for

Due to the low concentrations of persistent organic pollutants (POPs) in seawater, a special method of analysis is needed. The aim of this work was to prepare the detailed procedure for the determination of POPs in seawater and establish the level of pollution by selected POPs (seven PCBs, DDT and i