NSF-CONACyT: Sulfide as the Main Electron Donor for Denitrification of Petroleum Refinery Effluents-A Novel Approach for Simultaneous Removal of S, N, and C

NSF-CONACyT：硫化物作为炼油厂废水脱氮的主要电子供体——同时去除 S、N 和 C 的新方法

• 批准号: 0115851
• 负责人: Jim Field
• 金额: $ 11.23万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2004-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0115851&HistoricalAwards=false
• 关键词: NSF; CONACyT; Sulfide; Main; Electron

0115851 Field The objective of this research project is to develop a denitrification bioreactor using H2S as the main electron donor for the simultaneous removal of carbon, nitrogen and sulfur from refinery condensates. The denitrifying bioreactor will be the first stage of a two-stage biological process followed by a nitrification reactor, supplying nitrate via effluent recirculation. Under the joint NSF-CONACyT program, this project forms part of an international collaboration with the Mexican Institute of Petroleum (IMP) and the scientific research funded by this grant will provide a basis for the IMP to develop the proposed technology. This research is needed due to the complex microbial ecology of the system. This research will characterize the microbial consortium in the condensate-fed denitrifying bioreactor. Subsequently, the strategies of controlling the reactor to maximize the removal of sulfide, phenols and nitrogen will be identified. The effect of phenols on the autotrophic denitrification process will be studied. An important aspect of the research will be to control the oxidation of sulfide to form insoluble elemental sulfur, instead of complete oxidation to sulfate, so that it can be physically separated for reuse. ***

本研究项目的目的是开发一种以H2S为主要电子供体的反硝化生物反应器，同时去除炼油厂凝析油中的碳、氮和硫。反硝化生物反应器将是两阶段生物过程的第一阶段，随后是硝化反应器，通过废水再循环供应硝酸盐。在NSF-CONACyT联合项目下，该项目是与墨西哥石油研究所（IMP）国际合作的一部分，由该基金资助的科学研究将为IMP开发拟议技术提供基础。由于该系统的微生物生态复杂，因此需要进行这项研究。本研究将对冷凝式反硝化生物反应器中的微生物群落进行表征。随后，将确定控制反应器以最大限度地去除硫化物，酚类和氮的策略。研究酚类对自养反硝化过程的影响。该研究的一个重要方面将是控制硫化物氧化形成不溶性单质硫，而不是完全氧化成硫酸盐，这样它就可以被物理分离再利用。＊＊＊