SGER: Nitrogen Oxide Flux from Sludge-Amended Soil

SGER：污泥改良土壤中的氮氧化物通量

• 批准号: 9727886
• 负责人: J. Jeffrey Peirce
• 金额: $ 4.9万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9727886&HistoricalAwards=false
• 关键词: SGER; Nitrogen; Oxide; Flux; Sludge

9727886 Peirce This is an award to support the exploratory phase of a research project to determine the impact that land application of sludge has on ozone pollution in the lower levels of the troposphere. The investigator will conduct laboratory experiments to determine the flux of reactive nitrogen oxide from agricultural soils in the absence of nitrogen amendments, in soils that have been amended with sludge and soils fertilized chemically. Soils to be investigated will be obtained from agricultural land comparable to that currently being used for land application of sludge. Sludge will be obtained from the Chapel Hill, North Carolina wastewater treatment plant. Results of laboratory experiments will be compared with those from field studies to determine the scope of additional research needed to relate existing knowledge of the flux of reactive nitrogen oxide from natural and chemically fertilized soils to soils that are used for sludge management. The proposal leading to this award was submitted under Special Guidelines for Small Grants for Exploratory Research (SGER) in NSF 95-27, Grant Proposal Guide. Conditions relating to production, transport and emission of nitrogen oxide from natural and chemically fertilized soils are currently well defined. Recent emphasis on aggressive use of land for sludge management suggests determining whether this knowledge is sufficient to establish nitrogen oxide emission characteristics from these soils and their role in contributing to emission and formation of atmospheric ozone. Results of this project are expected to be used in determining the need further research to guide engineering design of land application systems for management of sludges and conditions under which air pollution from this source can be minimized or eliminated. ***

9727886 Peirce这是一个奖项，以支持一个研究项目的探索阶段，以确定污泥的土地应用对对流层低层臭氧污染的影响。 调查员将进行实验室实验，以确定在没有氮添加剂的情况下，在用污泥和化学施肥的土壤中，农业土壤中活性氮氧化物的通量。 待调查的土壤将取自农业用地，与目前用于土地施用污泥的土壤相当。 污泥将从北卡罗来纳州的查佩尔山污水处理厂获得。 实验室实验的结果将与实地研究的结果进行比较，以确定所需的额外研究范围，以将现有的自然和化学施肥土壤中活性氮氧化物通量的知识与用于污泥管理的土壤联系起来。 导致该奖项的提案是根据NSF 95-27《赠款提案指南》中探索性研究（SGER）小额赠款的特别指南提交的。 与自然和化学施肥土壤中氮氧化物的产生、运输和排放有关的条件目前已得到明确界定。 最近强调积极使用土地污泥管理表明，确定这方面的知识是否足以建立氮氧化物排放特性，从这些土壤和它们的作用，促进排放和形成大气臭氧。 该项目的结果预计将用于确定是否需要进一步的研究，以指导土地应用系统的工程设计，以管理污泥和条件下，可以最大限度地减少或消除这种来源的空气污染。 ***