Midwestern Cornbelt Nutrient Sequestration: Fine Tuning Treatment Technology | 18514
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
Open Access

Like us on:

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
Recommended Conferences
Google Scholar citation report
Citations : 2558

Journal of Earth Science & Climatic Change received 2558 citations as per Google Scholar report

Journal of Earth Science & Climatic Change peer review process verified at publons
Indexed In
  • CAS Source Index (CASSI)
  • Index Copernicus
  • Google Scholar
  • Sherpa Romeo
  • Online Access to Research in the Environment (OARE)
  • Open J Gate
  • Genamics JournalSeek
  • JournalTOCs
  • Ulrich's Periodicals Directory
  • Access to Global Online Research in Agriculture (AGORA)
  • Centre for Agriculture and Biosciences International (CABI)
  • RefSeek
  • Hamdard University
  • OCLC- WorldCat
  • Proquest Summons
  • SWB online catalog
  • Publons
  • Euro Pub
Share This Page

Midwestern cornbelt nutrient sequestration: Fine tuning treatment technology

3rd International Conference on Earth Science & Climate Change

Lu Zhang and Joe Magner

ScientificTracks Abstracts: J Earth Sci Clim Change

DOI: 10.4172/2157-7617.S1.013

Woodchip bioreactors have proven effective in removing nitrate-nitrogen (NO 3 -N) from agriculturally drained water in the Midwest USA region. Other than NO 3 -N, dissolved phosphorus (DP) and nitrous oxide (N 2 O) are also pollutants of concern from intensive managed row-crops. Both NO 3 -N and phosphorus can lead to algal bloom and hypoxia in the receiving surface waters and degrade the water quality. N 2 O is one of the nitrification/denitrification by-products and a greenhouse gas that is 310 times more potent than the same amount the CO 2 gas. This study explored the effectiveness of bioreactor NO 3 -N and DP treatment as well as N 2 O emission. Three types of media were examined in a pilot-scale lab experiment: woodchips, biochar chips (created from the same type of woodchip) and corn cobs. Two different residence times were examined: 24 hours and 8 hours. NO 3 -N reduction amount was very promising with all three media, although biochar showed a relatively long lag time. An average of 90% NO 3 -N reduction was observed from the 24 hours retention time. An average of 80% of the DP was sequestered, with the biochar media providing the most reduction in outflow DP concentration. N 2 O emission rates were reasonable. The biochar-based bioreactors emitted more gas during the start-up phase since the burning process due to the possible high N content of the char. Given recent development of state-wide nutrient management plans to reduce nutrient concentrations in surface water, study results of these technologies will help the row-crop producer community manage nutrient export to surface water.
Lu Zhang got her undergraduate degree in Environmental Sciences from the University of Minnesota. She is currently a second year MS student in Forest Hydrology program working with Professor Joe Manger at the same university. Her expected graduation date is June 2014. Her MS thesis work includes bioreactor nutrient removal and wetland denitrification addressing nitrous oxide emission.
Elektronik Sigara
wooden toys