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

9508728 DeLaune这个项目的目标是比现在更好地了解在生活废水处理过程中以及在处理废水处理产生的污泥过程中导致挥发性硫和含磷化合物产生的条件。在废水处理过程中产生的含硫化合物包括硫化氢、羰基硫化物、甲硫醇、二甲基硫化物和二硫化碳。在废水处理过程中产生的含磷化合物还可能包括磷化氢，磷化氢是一种因其毒性、致癌性和诱变性而具有特殊污染意义的物质。这项研究的结果有望提供知识，可应用于现有污水处理厂的运作，以减少或消除空气污染物的产生。通过本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。***

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.***