Understanding the Corrosion Factors of Cast Iron Mains

了解铸铁主管的腐蚀因素

• 批准号: 2136395
• 金额: --
• 依托单位: Swansea University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2136395
• 关键词: Understanding; Corrosion; Factors; Cast; Iron

The overall project aim is to understand how water chemistry can be adjusted to reduce corrosion rates and stabilise the corrosion already apparent in our mains. To achieve this, the following objectives are set:- Understand the effect of pH, hardness, alkalinity and chloride levels on corrosion rates in soft water.- Understand if adjusting orthophosphate concentration can aid in preventing corrosion.- Investigate potential additions to water treatment to ascertain if corrosion can be prevented or stabilised.- Ascertain the cost benefit of suitable measures to prevent corrosion.- Involvement in a pilot of successful treatment options.Welsh Water is proud to provide essential public services in the management of the water cycle to over three million people across most of Wales and some adjacent parts of England. 40% of Welsh Water's mains (11,000km of the 27,500km) are cast iron. Over time these cast iron mains corrode causing discolouration to our customers. Corrosion rates are dependent on the chemistry of the water passing through these mains. By understanding how water chemistry effects corrosion rates and the stabilisation of mains that already are corroded, Welsh Water will be able to reduce customer complaints about discoloured water.

总体项目的目的是了解如何调整水化学以降低腐蚀速率并稳定我们的电源中已经明显的腐蚀。为此，设定了以下目标： - 了解pH，硬度，碱度和氯化物水平对软水腐蚀速率的影响。-了解调整正磷酸盐浓度是否有助于防止腐蚀。-研究对水处理的潜在添加。以确定腐蚀是否可以防止腐蚀性或稳定性。自豪地为在威尔士大部分地区和英格兰一些邻近地区的三百万人民管理水周期的管理中提供必不可少的公共服务。威尔士水电源（27,500公里的11,000公里）中有40％是铸铁。随着时间的流逝，这些铸铁主管腐蚀了我们的客户变色。腐蚀速率取决于通过这些主电源的水的化学性质。通过了解水化学如何影响腐蚀率和已经被腐蚀的电源的稳定，威尔士水将能够减少客户对变色水的投诉。