Hunan buried sewage treatment equipment corrosion, in fact, all buried sewage treatment equipment anti-corrosion work mainly in two aspects, respectively, the equipment shell and the internal pipe.
Currently on the market equipment is mainly divided into fiberglass and carbon steel. FRP material innately has good corrosion resistance, without special anti-corrosion coatings. Carbon steel equipment, on the other hand, must be painted on the inside and outside of the shell with a suitable anti-corrosion coating. Polyurethane, epoxy resin and other coatings are more anti-corrosion coatings used in water treatment equipment.
Life sewage contains organic nutrients, compounds and hydrogen sulfide gas. Hydrogen sulfide gas is a highly corrosive and deadly substances. Therefore, the pipes inside the buried sewage treatment equipment need to be selected. Most of the metal pipe is not suitable for sewage treatment equipment, even if coated with anti-rust paint is difficult to effectively extend the life. Therefore, the equipment of the pipe directly choose high-quality PVC pipe is more appropriate.