Fate and Transport of Contaminants and Advanced Tertiary Treatment for their Removal During Municipal Wastewater Treatment Processes

城市污水处理过程中污染物的归宿和迁移以及去除污染物的高级三级处理

• 批准号: 251335-2013
• 负责人: Seth, Rajesh
• 金额: $ 1.53万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=570959
• 关键词: Fate; Transport; Contaminants; Advanced; Tertiary

Municipal wastewater treatment plants (MWTPs) have long been recognized to be of concern as a significant source for many contaminants of historical as well as many new contaminants of emerging concern (CEC) such as pharmaceuticals and personal care products (PPCPs), and flame retardants. The health concerns associated with these contaminants include non-carcinogenic and carcinogenic health effects and potential for endocrine disruption. The applicant has conducted research on two research projects to better understand and manage contaminant loadings to the environment resulting from MWTP effluents. The proposed research program will extend the findings from both the research projects, as discussed below. - Our recent work has shown that colloidal organic carbon (COC) can play an important role in controlling the fate of organic contaminants during the sewage treatment process. However, factors affecting this partitioning are still not clear. More work with other group of chemicals is proposed using methodologies already developed are planned to better understand the behaviour and modify predictive models. The results are expected to help scientists and regulators better understand, quantify and manage contaminant loadings to the environment from MWTP effluent discharges. - MWTPs are not very effective in the removal of several CECs (such as pharmaceuticals) and are an important point source for these to drinking water sources. MWTPs are also important sources for disease causing organisms (quantified as E. coli). Our recent study has demonstrated the effectiveness of ozonation in simultaneously achieving disinfection and transformation of many CECs in secondary treated municipal wastewaters in Canada. The proposed research would examine further development and optimization of ozone-based process for the treatment of MWTP effluent to maximize reduction in contaminant level as well as toxicity.The proposed research is expected to lead to more efficient and cost-effective strategies for dealing with contaminants in MWTP effluents and drinking water sources.

城市污水处理厂（MWTP）长期以来一直被认为是许多历史污染物以及许多新兴污染物（CEC）的重要来源，如药品和个人护理产品（PPCP）和阻燃剂。与这些污染物有关的健康问题包括非致癌和致癌的健康影响以及内分泌干扰的可能性。申请人对两个研究项目进行了研究，以更好地了解和管理MWTP废水对环境造成的污染物负荷。拟议的研究计划将扩展这两个研究项目的结果，如下所述。 - 我们最近的工作表明，胶体有机碳（COC）可以在控制污水处理过程中的有机污染物的命运发挥重要作用。 然而，影响这种划分的因素仍然不清楚。建议使用已经制定的方法对其他化学品组开展更多的工作，并计划更好地了解行为和修改预测模型。这些结果有望帮助科学家和监管机构更好地了解、量化和管理MWTP污水排放对环境的污染物负荷。 - MWTP在去除几种CEC（如药物）方面不是很有效，并且是一种有效的方法。 重要的点源，这些饮用水源。MWTP也是致病微生物的重要来源（定量为E。大肠杆菌）。我们最近的研究已经证明了臭氧化的有效性，同时实现消毒和转换的许多CEC在二级处理的城市污水在加拿大。建议的研究将探讨进一步发展和优化臭氧处理MWTP废水的工艺，以最大限度地降低污染物水平和毒性。建议的研究预计将导致更有效和更具成本效益的策略来处理MWTP废水和饮用水源中的污染物。