Physical & Chemical Factors Influencing Production/Emission of Gaseous Air Pollutants From Wastewater Treatment Systems & the Processing of Treatment-Derived Sludges

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• 批准号: 9508728
• 负责人: Ronald DeLaune
• 金额: $ 26.65万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-02-01 至 2001-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9508728&HistoricalAwards=false
• 关键词: Physical; & Chemical; Factors; Influencing

9508728 DeLaune The objective of this project is to obtain a better understanding than now exists of the conditions that result in the production of volatile sulfur and phosphorus-containing compounds during domestic wastewater treatment processes and in the processing of sludges derived from the treatment of wastewaters. Sulfurous compounds that are produced during wastewater treatment include hydrogen sulfide, carbonyl sulfide, methanethiol, dimethyl sulfide and carbon disulfide. Phosphorus compounds that are produced during wastewater treatment may also include phosphine, a substance of special pollutional significance because of its toxicity, carcinogenicity and mutagenicity. Results of this research are expected to provide knowledge that can be applied in the operation of existing wastewater treatment plants to reduce or eliminate the production of air pollutants. The knowledge gained through this research is also expected to be utilized in improving engineering design of treatment plants to minimize or avoid the production of air pollutants of toxic and/or nuisance significance.***

9508728 DeLaune该项目的目标是获得比现在更好的理解，导致在国内废水处理过程中产生挥发性含硫和含磷化合物的条件，以及来自废水处理的污泥的处理。 在废水处理过程中产生的含硫化合物包括硫化氢、硫化羰、甲硫醇、二甲基硫醚和二硫化碳。 废水处理过程中产生的磷化合物还可能包括磷化氢，这是一种具有特殊污染意义的物质，因为它具有毒性、致癌性和致突变性。 这项研究的结果预计将提供知识，可应用于现有的污水处理厂的运作，以减少或消除空气污染物的生产。 通过这项研究获得的知识也有望用于改善处理厂的工程设计，以尽量减少或避免产生有毒和/或有害的空气污染物。