Study On The Corrosion Of The Stainless Steel Condenser In Wastewater

This paper investigated the effect of anionic surface-active agent and residual chlorine in simulating wastewater, on the pitting corrosion potential of Type 316 stainless steel(316ss). The Epc was ascertained by galvanodynamic polarization. In the experiment, it shows that the pitting corrosion potential (Epc) of Type 316 stainless steel(316ss) increases with the increase of the consistence of anionic surfactants in simulating wastewater. And it has obvious inhibition effect. With the consistence rise of residual chlorine, the pitting corrosion potential (Epc) of Type 316 stainless steel (316ss) rises. Compared with the rising of anionic surfactants, the rising of residual chlorine is not distinctness. The pitting corrosion potential of 316 stainless steel increases along with the ammonia nitrogen density decrease. According to the investigation of the paper, we can use wastewater as the recirculating cooling water of the condenser, and use the stainless steel in the condenser. And the selection of condenser material can be obtained based on the paper.