Mitigation of nitrogen pollution in water body by incorporating the dhs (down-flow hanging sponge) systems and autotrophic nitrogen removal technologies

Hui Ping Chuang, Takashi Yamaguchi, Madan Tukar, Hideki Harada, Akiyoshi Ohashi

Research output: Contribution to conferencePaper

Abstract

Nitrogen pollution is gathering increased attention due to well-known environmental hazards resulting from overloading of nutrients. Conventional process of nitrogen removal by nitrification and denitrification requires considerable amount of energy and cost for aeration and carbon supply. Several novel and cost-effective biological nitrogen removal processes were developed; however, there were still lots of problems associated with pervious developed reactor systems. In this study application of DHS reactor for nitrogen-removal process could provide the maximum nitrogen-removal efficiency under lower expenditure. The concentrations of nitrogen compounds in this system were maintained below 8 mg N/L in effluent under the nitrogen loading rate of 1.51 kg N/m3-day. In addition, no withdraw sludge was observed in a DHS, decreasing further the cost for post-treatment.

Original languageEnglish
Publication statusPublished - 2014 Jan 1
Event6th International Conference on Environmental Informatics, ISEIS 2007 - Bangkok, Thailand
Duration: 2007 Nov 212007 Nov 23

Other

Other6th International Conference on Environmental Informatics, ISEIS 2007
CountryThailand
CityBangkok
Period07/11/2107/11/23

Keywords

  • Ammonium
  • Down-flow hanging sponge (dhs) reactor
  • Low cost
  • Nitrogen pollution
  • Nitrogen re moval process

ASJC Scopus subject areas

  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Management, Monitoring, Policy and Law
  • Water Science and Technology

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  • Cite this

    Chuang, H. P., Yamaguchi, T., Tukar, M., Harada, H., & Ohashi, A. (2014). Mitigation of nitrogen pollution in water body by incorporating the dhs (down-flow hanging sponge) systems and autotrophic nitrogen removal technologies. Paper presented at 6th International Conference on Environmental Informatics, ISEIS 2007, Bangkok, Thailand.