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http://krishi.icar.gov.in/jspui/handle/123456789/68166
Title: | Enhancing nitrogen removal efficiency of domestic wastewater through increased total efficiency in sewage treatment (ITEST) pilot plant in cold climatic regions of Baltic Sea |
Other Titles: | Not Available |
Authors: | Y.V. Krishna Reddy a,b, Sirisha Adamala c,⇑, Erik K. Levlin a, K.S. Reddy d |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Central Research Institute of Dryland Agriculture |
Published/ Complete Date: | 2017-05-16 |
Project Code: | Not Available |
Keywords: | Eutrophication; Pre-anaerobic; NH4 +; NO3 ; TN |
Publisher: | Not Available |
Citation: | Y.V. Krishna Reddy et al. |
Series/Report no.: | Not Available; |
Abstract/Description: | The temperatures of sewage water were too low in cold climatic regions of Baltic Sea, which resulted in inefficiency of denitrification in sewage treatment process (STP). This is not prescribed to meet the effluent nitrogen levels (<10 mg/l) as per Urban Wastewater Treatment Directive 98/15/EC. In order to improve the denitrification efficiency and the subsequent removal of nitrogen from the municipal wastewater as per the above European Commission guidelines, modified process was formulated with pre-anaerobic and post-aerobic activated sewage treatment processes. The modified process includes the rise in ambient temperature up to 20 ± 2 C by using heat exchangers in Increased Technology and Efficiency in Sewage Treatment (ITEST) pilot plant at the Swedish Environmental Research Institute (IVL) laboratory. The experiments were conducted with the modified process of sewage water in one line (treatment line (TL)) and the existing process in another line (reference line (RL)) of the pilot plant. The physical (such as Temperature, Suspended solids and Sludge volume) and chemical (ammonium-nitrate (NH4 +-N), nitrate-nitrogen (NO3 -N) and total-nitrogen (TN)) parameters were analyzed. The results concluded that the NH4 +-N, NO3 -N and TN concentrations of treated waste water were satisfactory with a concentration of <10 mg/l as per the European Directives 98/15/EEC at treatment line as compared to influent and reference lines. The average nitrogenouscompounds’ removal efficiencies were 84% and 76% of NH4 +, 80% and 65% of NO3 , 78% and 62% of TN for TL and RL, respectively. 2017 The Gulf Organisation for Research and Development. Production and hosting by Elsevier B.V. |
Description: | Enhancing nitrogen removal efficiency of domestic wastewater |
ISSN: | Not Available |
Type(s) of content: | Journal |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | International Journal of Sustainable Built Environment |
Journal Type: | Research |
NAAS Rating: | 11.03 |
Impact Factor: | 5.03 |
Volume No.: | 6 |
Page Number: | 351-358 |
Name of the Division/Regional Station: | NRM |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/68166 |
Appears in Collections: | NRM-CRIDA-Publication |
Files in This Item:
File | Description | Size | Format | |
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J 6.pdf | Enhancing nitrogen removal efficiency of domestic wastewater | 1.28 MB | Adobe PDF | View/Open |
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