Today, about 15,000 Desalination Plants (DPs) operate worldwide and due to increasing population growth and improvement in living standards, the demand for water and electricity in the arid regions of the world is soaring. Placing DPs combined with power generating units allows the heat extracted from the process to evaporate seawater. Desalination is the most sustainable solution to the shortage of potable water and irrigation obtained from sources of saline water.
DPs are extremely susceptible to corrosion since they handle and process aggressive saline water under demanding operating conditions which include filtration, heat exchange, distillation, evaporation, agitation and circulation and high flow velocities, often turbulent. Saline water; sea, brackish and brines cause localized corrosion such as pitting, crevice, galvanic and stress corrosion. Additionally, biological fouling and mineral scaling are frequent nuisances that hinder the equipment surface performance and induce corrosion.
Using Secorp Metals such as CP titanium/titanium alloys, nickel-based alloys, Cu–Ni alloys and Al-Mg alloys is the most effective means of preventing corrosion. This corrosion resistance is due to the tenacious, durable and self-healing, protective film of metal oxides formed in the presence of air and moisture. Consult Secorp Metals today to help you select the materials that are most suitable to your needs.