Operational Improvement of Wastewater Treatment Plants by Utilizing Electron Beam Technology to Enhance In-Plant Processing and Sludge Recycling

9525059 Waite这是一个支持研究的奖项，其目的是确定电子束辐射工艺的设计参数，以处理废水和处理系统组件的中间产品。待调查的具体研究实例包括：利用电子束电离辐射对工艺残留物进行改性，以提高其在好氧和厌氧消化时的生物降解性；处理厌氧消化池上清液，以提高其生物降解性，并减少其在回收到处理系统中进行额外的生物处理过程时的破坏性影响；通过改变其流体特性和加速生物稳定过程（如堆肥和土壤注入）来改善污泥的脱水能力。该项目涉及将于1997年1月与国际原子能机构合作举办的一次初步讲习班，以指导进行试点和工程规模的研究。电子束辐射对生活污水处理过程中产生的污泥进行了有效的消毒。一束带电电子的电离辐射已被证明对破坏具有污染意义的有机化合物是有效的。有迹象表明，电子束辐射可以在现有的废水处理厂内有效地利用，以提高其他处理系统组件的效率。该项目将利用位于弗吉尼亚岛迈阿密-戴德污水处理厂的现有1.5 MeV电子束加速器来获得工程设计参数。这项工程规模的操作将以安装在迈阿密大学污染控制技术实验室的4兆电子伏特直线加速器的中试研究结果为指导。＊＊＊

9525059 Waite This is an award to support research, the objective of which is to determine the parameters for design of electron beam radiation processes to treat wastewater and intermediate products of treatment system components. Specific examples of research to be investigated include use of ionizing radiation of the electron beam for modification of process residuals to improve their biodegradability when subjected to aerobic and anaerobic digestion, processing of anaerobic digester supernatant fluids to improve their biodegradability and to reduce their disruptive effect when recycled to the treatment system for additional exposure to biotreatment processes, improvement of sludge dewaterability by modification of their fluid properties and acceleration of biostabilization processes such as composting and soil injection. The project involves an initial workshop to be conducted in January of 1997 conducted in cooperation with the International Atomic Energy Agency for guidance in conduct of the pilot and engineering-scale research. Electron beam radiation has been found to be effective in disinfection of sludges produced during treatment of domestic wastewater. The ionizing radiation of a beam of energized electrons has been shown to be effective in destruction of organic compounds of pollutional significance. Indications are that electron beam radiation could be utilized productively within existing wastewater treatment plants to improve the efficiency of other treatment system components. This project will utilize an existing 1.5 MeV electron beam accelerator located at the Miami-Dade Wastewater Treatment Plant on Virginia Key to obtain engineering-design parameters. This engineering-scale operation will be guided by results from pilot-scale research using a 4 MeV linear accelerator being installed at the University of Miami's Laboratory for Pollution Control Technologies. ***