Economic analysis of electrodialysis, denitrification, and anammox for nitrogen removal in municipal wastewater treatment

JOURNAL OF CLEANER PRODUCTION

卷:262

Article

Vineyard, Donald¹  Hicks, Andrea¹  Karthikeyan, K. G.²  Barak, Phillip³ 

[1] Univ Wisconsin, Dept Civil & Environm Engn, 1415 Engn Dr, Madison, WI 53706 USA

[2] Univ Wisconsin, Dept Biol Syst Engn, 228 Agr Engn Bldg,460 Henry Mall, Madison, WI 53706 USA

[3] Univ Wisconsin, Dept Soil Sci, 1525 Observ Dr, Madison, WI 53706 USA

关键词: Nutrient recovery;    Nutrient recycling;    Tertiary treatment;    Ammonium;    Reject water;    Optimization;   

DOI  :  10.1016/j.jclepro.2020.121145

来源: Elsevier

【 摘 要 】

Technologies to remove nitrogen from wastewater are employed to preserve drinking water and prevent environmental damage. Nitrification/denitrification and partial nitrification-anammox are two accepted nitrogen removal techniques for wastewater treatment plants. These processes require energy for aeration and can release fugitive greenhouse gases in the form of nitrous oxide. Electrodialysis could potentially be used as an alternative to remove ammonium from waste streams, but previous experimentation has concluded that concentrate streams experience rapid scaling and fouling of membranes. This analysis compiles literature values to compare the state-of-the-art of municipal nitrogen removal to the new electrodialysis technique on an economic basis. Results show that nitrogen removal and recovery by electrodialysis is estimated to lower both initial capital costs and subsequent operation costs than traditional N removal technologies. (C) 2020 The Authors. Published by Elsevier Ltd.

【 授权许可】

Free