Waste Treatment and Nutrient Recovery Systems for the Bio-Resource Industries

这项研究计划的总体长期目标是为生物资源行业开发高效和成本效益高的废物处理/利用系统。核心部件包括生物处理工艺、微波强化高级氧化工艺(MW-AOP)和营养恢复工艺；每个部件可以单独使用，也可以集成到整个处理/利用系统中。短期目标概述如下： 1)。微波强化高级氧化工艺(MW-AOP)：目标包括：a)研究功率强度、过氧化氢投加量、流速和温度等主要因素对MW-AOP连续运行模式的影响；b)研究MW-AOP的非热效应和反应机理；c)探索过热对营养物释放的可能影响；以及d)开发过程预测模型。 2)结晶回收养分：目标包括：a)确定奶牛粪便的最佳预处理条件，以产生合适的饲料基质，以促进养分回收；b)研究主要因素的影响，如pH、水力湍流和流速，以优化高效回收鸟粪石的操作条件；c)开发一种新的、更高效的结晶器设计；以及d)探索其他可能的结晶产品的生产和使用，如磷酸镁钾(KMP)和/或磷酸钙。 3)生物处理工艺：目标是：a)通过将具有实时控制的好氧序批式反应器(SBR)和适用于小型操作的固定膜厌氧消化器相结合来开发灵活的处理系统；b)进一步开发工艺控制算法；以及c)将生物处理部件集成到MW-AOP和养分回收部件中，以建立适当的工艺流程序列。

The overall long-term goal of this research program is to develop efficient and cost-effective waste treatment/utilization systems for the bio-resource industry. The core components consist of biological treatment processes, the Microwave Enhanced Advanced Oxidation Process (MW-AOP), and a nutrient recovery process; each component can be used alone, or be integrated into a total treatment/utilization system. The short term goals are summarized as follows: 1). Microwave Enhanced Advanced Oxidation Process (MW-AOP): The objectives include: a) to study the effects of major factors, such as power intensity, hydrogen peroxide dosages, flow rate and temperature, on the continuous mode of operation of the MW-AOP; b) to investigate the athermal effects and reaction mechanism of the MW-AOP; c) to explore the possible superheating effects on nutrients release; and d) to develop a process prediction model. 2) Nutrient Recovery by Crystallization: The objectives will include: a) to establish the optimal pretreatment condition for dairy manure to produce suitable feed substrate to facilitate nutrient recovery; b) to study the effects of major factors, such as pH, hydraulic turbulence and flow velocity, in order to optimize the operating conditions for efficient struvite recovery; c) to develop a new and more efficient crystallizer design; and d) to explore the production and use of other possible crystallization products, such as potassium magnesium phosphate (KMP, or K-struvite) and/or calcium phosphate. 3) Biological Treatment Processes: The objectives are: a) to develop a flexible treatment system by combining an aerobic sequencing batch reactor (SBR) with real-time control and a fixed-film anaerobic digester suitable for small sized operations; b) to further develop the process control algorithms; and c) to integrate the biological treatment components to the MW-AOP and nutrient recovery components to establish the appropriate process flow sequence.