Waste Residuals & Distribution System Technology Advancements for Ion Exchange Processes in Drinking Water Treatment

废物残留物

• 批准号: 435157-2012
• 负责人: Walsh, Margaret
• 金额: $ 1.4万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=533142
• 关键词: Waste; Residuals; Distribution; System; Technology

Coagulation in conventional filtration systems remains the most commonly used process for the removal of natural organic matter (NOM) to reduce disinfection by-product (DBP) formation in water treatment. However, this process has been shown to have limitations when operating in cold water conditions, and results in the generation of large volumes of waste residual solids (i.e., sludge), which require further processing and ultimate disposal. IX technology with anionic exchange resin (AER) has been shown in recent bench- and pilot-scale studies to present optimal NOM removal capacity when compared to coagulation processes. However, our understanding of how IX treatment with AER will potentially impact disinfection efficacy of the finished water with chlorine and/or UV, and corrosion control strategies in the distribution system is limited. The management and disposal of the waste brine residuals produced when IX resins are regenerated also presents an area that requires advanced research to develop alternative process design solutions that are more sustainable. The overall goal of this research project will be to investigate the application of IX technology in terms of water quality and design options related to the main treatment train, distribution system and waste residuals management operations in drinking water treatment. The project will bring together professionals from academia, municipal and private sectors (consulting engineers, technology designers and manufacturing end-users) to provide direct benefits to the drinking water treatment industry through a three-year research program focused on ion exchange technology. New partnerships between researchers at Dalhousie University and the private sector through the NSERC Engage Grant program, and increased research capacity through the NSERC CREATE Grant program (STEWARD) at Dalhousie have greatly complemented the proposed research team and HQP development potential for this project. Overall, this study will focus on developing new design guidelines with advanced water treatment technologies to achieve high quality water targets for both municipal potable water supplies and the food and beverage manufacturing sector.

传统过滤系统中的混凝仍然是去除天然有机物 (NOM) 以减少水处理中消毒副产物 (DBP) 形成的最常用工艺。 然而，该工艺已被证明在冷水条件下运行时存在局限性，并导致产生大量废弃残留固体（即污泥），需要进一步处理和最终处置。最近的实验室和中试规模研究表明，与混凝工艺相比，采用阴离子交换树脂 (AER) 的 IX 技术具有最佳的 NOM 去除能力。 然而，我们对 AER IX 处理如何潜在影响氯和/或紫外线成品水的消毒效果以及分配系统中的腐蚀控制策略的了解有限。 IX 树脂再生时产生的废盐水残留物的管理和处置也提出了一个需要先进研究的领域，以开发更可持续的替代工艺设计解决方案。该研究项目的总体目标是研究 IX 技术在水质方面的应用以及与饮用水处理中的主要处理系统、分配系统和废物残留管理操作相关的设计方案。 该项目将汇集来自学术界、市政和私营部门的专业人士（咨询工程师、技术设计师和制造最终用户），通过为期三年的离子交换技术研究计划，为饮用水处理行业提供直接利益。 达尔豪斯大学的研究人员与私营部门通过 NSERC Engage Grant 计划建立了新的合作伙伴关系，并通过达尔豪斯的 NSERC CREATE Grant 计划 (STEWARD) 提高了研究能力，极大地补充了该项目拟议的研究团队和 HQP 的发展潜力。 总体而言，本研究将侧重于利用先进的水处理技术制定新的设计指南，以实现市政饮用水供应和食品和饮料制造行业的高质量水目标。