| 摘要 |
<p>The invention relates to a process for corrosion-protection of steel tanks employed for collecting and treating waste water and also for treating potable and industrial water, as well as to steel tanks protected against corrosion. According to the invention, the tank is an enclosure consisting of some walls () having an external layer () made of a thermoplastic material and an internal steel layer (), a ceiling board () made of a thermoplastic material joined by welding to the walls () and a base (), exceeding the size of the horizontal section defined by the walls (), made of a concrete or reinforced-concrete plate provided with some channels () for fastening and water-tight mounting the tank walls ().</p> |
