GOALI: Developing a Filtration System for Purification of Contaminated Water

项目编号：0735208目标：开发一种净化污水的过滤系统。该提案涉及饮用水净化系统的开发，该系统可以同时去除不同类别的污染物，包括有机物，无机物和病原体。该系统可能应用于没有中央水处理系统的偏远地区和灾害期间的发达地区。该系统依靠芬顿反应作为一种处理技术。铜和其他过渡金属将作为反应的催化剂，而不是传统芬顿试剂中的铁，后者仅在pH值为2-4时有效。铜基Fenton试剂可以在pH 3-9的条件下工作，这是该系统的关键优势。金属催化剂将与离子交换树脂结合，以防止其存在于产品水中。催化剂与树脂的结合将被设计成树脂具有去除金属污染物的交换能力。有机污染物和病原体会被芬顿反应产生的羟基自由基氧化。建议的工作分为三个阶段。首先，将测试潜在催化剂的内在反应动力学、传质限制、稳定性和浸出性。然后，基于在前一阶段确定的最合适的催化剂，将设计、构建和运行一个原型系统。同时，建立了预测系统性能的数学模型。将原型和数学模型提供的结果进行比较。最后进行风险分析和经济评价。

Vishal ShahDowling CollegeProposal Number: 0735208GOALI: Developing a Filtration System for Purification of Contaminated Water.This proposal deals with the development of a drinking water purification system that can simultaneously remove different categories of contaminants including organics, inorganics, and pathogens. Possible applications of the system are remote areas where a central water treatment system is not available and developed areas during disaster events. The system relies on Fenton's reaction as a treatment technology.Copper and other transition metals will be examined as a catalyst in the reaction instead of iron as in traditional Fenton's reagent which is effective only at pH 2-4.Copper based Fenton's reagent can work at pH 3-9 which is the key advantage of the proposed system. The metal catalyst will be bound to an ion exchange resin to prevent its presence in the product water. The binding of the catalyst onto the resin will be devised in a way that the resin has the exchange capacity left for removing metal contaminants. Organic contaminants and pathogens will be oxidized by hydroxyl radicals generated from Fenton's reaction. The proposed work is divided into three phases. First, potential catalysts will be tested for intrinsic reaction kinetics, mass transfer limitations, stability, and leaching. Then, based on the most suitable catalyst identified in the previous phase, a prototype system will be designed, constructed, and operated. In the meantime, a mathematical model to predict the performance of the system will be developed. Results provided by the prototype and the mathematical model will be compared. Finally, risk analysis and economic evaluation will be conducted.