原文传递
Enhancing Nitrogen Removal in Storm-Water Treatment Facilities for Transportation.
| 题名： | Enhancing Nitrogen Removal in Storm-Water Treatment Facilities for Transportation. |
| 作者： | Imho, P. T.; Chiu, P. C.; Guo, Q. |
| 关键词： | Stormwater, Transportation facilities, Nitrate, Biochar, Microbial, Denitrification, Nitrogen removal methods, Water quality, Total Maxinum Daily Load(TMDL) |
| 摘要： | Stormwater from roadways is a point source of pollution. State DOTs must comply with Total Maximum Daily Load (TMDL) regulations for nutrients such as nitrogen, which causes water quality impairment. Ex- isting stormwater treatment technologies, such as bioretention cells, do not remove nitrogen adequately to meet water quality standards. New technologies that can more eectively remove nitrogen and reduce the footprint required for stormwater treatment will result in signi#12;cant savings for State DOTs. We have hypothesized that biochar can be used in bioretention cells to promote microbial removal of nitrate from stormwater and improve bioretention cell performance. The goal of this project is to experimentally test this hypothesis and produce the data necessary to (1) develop a better understanding of biochar-enhanced denitri#12;cation and (2) secure multi-year support for a #12;eld-scale assessment of the proposed technology. We established a culture of the anaerobic bac- terium Geobacter metallireducens and "trained" it to utilize nitrate as an electron acceptor. Batch experiments were carried out to illustrate the ability of a commercial wood biochar, which is being tested in a #12;eld detention cell in Delaware, to support nitrate removal by G. metallireducens. This project provided direct or indirect re- search support for 12 students and resulted in 1 conference paper, 1 conference presentation, 3 seminars/public lectures, and 3 awarded multi-year grants. |
| 总页数： | Imho, P. T.; Chiu, P. C.; Guo, Q. |
| 报告类型： | 科技报告 |
相关文献
- Biochar as a Rechargeable Geo-Battery to Promote Nitrogen Removal in Storm-Water from Roadways.
- Comparing Properties of Water Absorbing/Filtering Media for Bioslope/Bioswale Design
- INFLUENCE OF HIGHWAY RUNOFF CHEMISTRY, HYDROLOGY, AND RESIDENCE TIME ON NONEQUILIBRIUM PARTITIONING OF HEAVY METALS: IMPLICATIONS FOR TREATMENT AT THE HIGHWAY SHOULDER.
- Life-cycle Economic Comparison of Common Signpost Materials and Types.
- Environmental Justice Concentration Zones for Assessing Transportation Project Impacts.
检索历史
应用推荐
