ENVIRONMENTAL HEALTH ASPECTS OF COAL FLY ASH UTILIZATION AS A MEDIUM FOR PLANTS

使用粉煤灰作为植物介质的环境健康问题

• 批准号: 8167923
• 负责人: JERZY BILSKI
• 金额: $ 10.36万
• 依托单位: UNIVERSITY OF NORTH DAKOTA
• 依托单位国家: 美国
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-05-01 至 2011-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8167923
• 关键词: Attention; Boron; Coal; Computer Retrieval of Information on Scientific Projects Database; Culture Media; Environment; Environmental Health; Environmental Impact; Funding; Germination; Goals; Grant; Growth; Heavy Metals; Institution; Knowledge; Laboratories; Lead; North Dakota; Plants; Research; Research Personnel; Research Project Grants; Resistance; Resources; Safety; Selenium; Soil; Source; Testing; United States National Institutes of Health; fly ash; landfill; research study; response; uptake

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. This project is focused on the problems of environmentally friendly utilization of coal combustion residue, fly ash (FA), containing significant amounts of heavy metals. To date, knowledge about the potential use of FA as a component of growth media for plants is fragmentary. Furthermore, the environmental impact of FA utilization in providing a plant cover over the coal fly ash landfills and the importance of the unsolved problem of its disposal had attracted relatively little attention. This research project will be performed trough the combination of FA/soil leaching experiments with laboratory and greenhouse experiments testing plant species/varieties response to FA in the growth environment. The applicant will test the overall hypothesis that North Dakota fly ash can be safely used as a component of growing media for plants, without compromising environmental health. The applicant will attempt to identify plant species/varieties that are adapted to such condition and we will determine the level of accumulation of potentially toxic heavy metals by these plants. It should lead to diminishing of environmental health endangerment of coal FA piles. The long-term goal of this project is to study the potential use of fly ash (FA) as the medium for growing plants. The Specific Aims of this project are as follows: 1. To determine the environmental safety of different growth media composed of FA and soil; 2. To study the influence of various FA content in FA/soil composed media (up to 100% of FA) on the germination, growth, and uptake of heavy metals, boron (B), and selenium (Se) by the plants; 3. To assess the resistance to high concentrations of FA in growth medium among the varieties of most resistant species.

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 本项目致力于对含有大量重金属的燃煤残渣--飞灰的环境友好利用问题。到目前为止，关于FA作为植物生长介质成分的潜在用途的知识 是支离破碎的。此外，利用腐植酸为飞灰堆填区提供植物覆盖物对环境的影响，以及未获解决的弃置问题的重要性，相对较少受到关注。本研究项目将通过FA/土壤淋溶实验与实验室和温室实验相结合的方式来进行，以测试植物物种/品种在生长环境中对FA的响应。申请者将检验总体假设，即北达科他州的飞灰可以安全地用作植物生长基质的成分，而不会损害环境健康。申请者将尝试识别适应的植物物种/品种 我们将确定这些植物对潜在有毒重金属的累积水平。从而降低煤粉堆场对环境健康的危害。该项目的长期目标是研究飞灰(FA)作为植物生长介质的潜在用途。本项目的具体目标如下：1.确定不同的FA和土壤组成的生长基质的环境安全性；2.研究FA/土壤组成的基质中不同的FA含量(高达100%的FA)对植物萌发、生长和对重金属、B、Se的吸收的影响；3.评估最具抗性的品种对生长基质中高浓度FA的抗性。