Journal Article
Print(0)
Journal of Environmental Sciences (China)
J.Environ.Sci.(China)
Jan
39
13
21
CI: Copyright (c) 2015; JID: 100967627; OTO: NOTNLM; 2015/07/23 [received]; 2015/10/06 [revised]; 2015/10/07 [accepted]; 2015/12/08 [aheadofprint]; ppublish
Netherlands
1001-0742; 1001-0742
PMID: 26899639
eng
Journal Article; Research Support, Non-U.S. Gov't; IM
10.1016/j.jes.2015.10.007 [doi]
Unknown(0)
26899639
A combined process was developed to inhibit the corrosion both in the pipeline of reclaimed water supplies (PRWS) and in downstream recirculating cooling water systems (RCWS) using the reclaimed water as makeup. Hydroxyl carboxylate-based corrosion inhibitors (e.g., gluconate, citrate, tartrate) and zinc sulfate heptahydrate, which provided Zn(2+) as a synergistic corrosion inhibition additive, were added prior to the PRWS when the phosphate (which could be utilized as a corrosion inhibitor) content in the reclaimed water was below 1.7 mg/L, and no additional corrosion inhibitors were required for the downstream RCWS. Satisfactory corrosion inhibition was achieved even if the RCWS was operated under the condition of high numbers of concentration cycles. The corrosion inhibition requirement was also met by the appropriate combination of PO4(3-) and Zn(2+) when the phosphate content in the reclaimed water was more than 1.7 mg/L. The process integrated not only water reclamation and reuse, and the operation of a highly concentrated RCWS, but also the comprehensive utilization of phosphate in reclaimed water and the application of non-phosphorus corrosion inhibitors. The proposed process reduced the operating cost of the PRWS and the RCWS, and lowered the environmental hazard caused by the excessive discharge of phosphate. Furthermore, larger amounts of water resources could be conserved as a result.
. Published by Elsevier B.V
Wang,J., Wang,D., Hou,D.
Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Envir
20151208
http://vp9py7xf3h.search.serialssolutions.com/?charset=utf-8&pmid=26899639
2016