Corrosion

The corrosion of metal pipes carrying potable water is a universal problem. The rate of metal attack depends on a number of factors, the most important of which is the nature of water. Desalinated water is known to be very aggressive. Its aggressivity exceeds that measured in naturally occurring riv

A newly synthesized azo compound, namely 8-quinolinol-5-azoantipyrine (HQAP), was studied as an inhibitor for the corrosion of mild steel in 1M HCl. Results of weight loss and Tafel polarisation measurements show that this compound has fairly good inhibiting properties for steel corrosion in acidic

The corrosion inhibition of aluminium in HCl solution in the presence of exudate gum from Raphia hookeri at temperature range of 30–608C was studied using weight loss and thermometric techniques. The exudate gum acts as an inhibitor in the acid environment. The inhibition efficiency increases with i

The design of reverse osmosis and nano filtration plants is essentially influenced not only by the module arrangement, but also by the arrangement of the pressure vessel connections. Multifarious design possibilities can be considered as a result of many improvements introduced over the last few yea

Chilled water air-conditioning systems are the lifelines of cooling for large commercial, industrial and public buildings. The aim of this paper is to examine and evaluate damages sustained to a large hotel in Greece. The damage that discovered concerns corrosion and salt deposition problems of a ch

Rates of zinc consumption during cathodic protection of a copper pipeline carrying saline water were measured by the loss in weight technique. Variables studied were solution flow rate, temperature and NaCl concentration. It was found that within the present range of conditions the rate of zinc cons

Several copper-nickel based alloys commonly used as condenser and heat exchanger materials in desalination plants were evaluated against corrosion and deterioration. The evaluation against the corrosion and deterioration was conducted in a simulated pollution impact of the oil spill and oil fires in

This paper reports studies related to problems of vapour-side corrosion of copper/nickel alloys in multistage flash desalination plant. The main objective of the work was to obtain basic information and understanding of the corrosion behaviour of copper/nickel alloys in distilled water over a range

The operational experience on the first generation of large MSF desalination plant has demonstrated that the original expected life of these units has been largely exceeded. Several contracts for the rehabilitation and upgrading of desalination units installed 20 years ago have been recently awarded

An early stage of localized corrosion, i.e. pitting and crevice corrosion, of a pure copper and a brass in uncoated and coated conditions in seawater was investigated in situ by a new non-destructive testing (NDT) method. The new method of localized corrosion detection is based on the optical corros