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Nitrification using submerged micro bubbles diffuser in an aeration system

The objectives of this research are to evaluate the effectiveness of the micro- diffuser in enhancing nitrification in wastewater treatment. The nitrification performances of micro- and milli- diffusers were evaluated by measuring NH4-N and NO3-N contents. The experimental values were also compared...

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Main Authors: Winarto, F.E.W., Kutty, S.R.M., Gilani, S.I.U., Isa, M.H., Aziz, A.A.A., Zid, W.K.W.
Format: Conference or Workshop Item
Published: 2010
Subjects:
TD Environmental technology. Sanitary engineering
Online Access:http://eprints.utp.edu.my/4119/1/Nitrification_using_submerged_micro_bubbles_diffuser_in_an_aeration_system.pdf
http://eprints.utp.edu.my/4119/
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spelling my.utp.eprints.41192017-01-19T08:23:40Z Nitrification using submerged micro bubbles diffuser in an aeration system Winarto, F.E.W. Kutty, S.R.M. Gilani, S.I.U. Isa, M.H. Aziz, A.A.A. Zid, W.K.W. TD Environmental technology. Sanitary engineering The objectives of this research are to evaluate the effectiveness of the micro- diffuser in enhancing nitrification in wastewater treatment. The nitrification performances of micro- and milli- diffusers were evaluated by measuring NH4-N and NO3-N contents. The experimental values were also compared with the theoretical values derived from the kinetic calculations. Two reactors A and B, of size 140x140x500 mm were constructed using perspex to treat municipal wastewater. Aeration in the reactors A and B was provided using millimeter diffuser and micro diffuser, respectively. The diffusers consisted of perforated aluminium plate to generate millimeter bubbles and sintered porous glass to generate micro bubbles. Compressed air was forced through two parallel flow meters at a flow rate of 2.5 L/min. Biomass for both reactors was acclimatized prior to treating the municipal wastewater in the reactors. Two batch experiments were conducted at 26°C for the biological study and in the estimation of the kinetic parameters for the nitrification. Samplings were conducted at 1 hour, 3 hours, and every 6 hours respectively, until 48 hours for each batch of the experiment. The main parameters tested were NH4-N and NO3-N. The results of the study indicated that ammonia-nitrogen removal was achieved at 90% and 87%, for the micro- and milli- diffusers, respectively. The final average ammonia-nitrogen removal rate was found to be 0.48 mg/L.hr and 0.28 mg/L.hr, for micro and milli diffuser, respectively. The experimental degradation rate also closely follows the theoretical degradation rate with the theoretical degradation rate from 36-48 hrs. of aeration found to be 0.5 mg/L.hr and 0.46 mg/L.hr for micro and milli diffuser, respectively. It can be concluded that the use of micro diffuser can provide higher ammonia-nitrogen removal from wastewater. 2010-12 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/4119/1/Nitrification_using_submerged_micro_bubbles_diffuser_in_an_aeration_system.pdf Winarto, F.E.W. and Kutty, S.R.M. and Gilani, S.I.U. and Isa, M.H. and Aziz, A.A.A. and Zid, W.K.W. (2010) Nitrification using submerged micro bubbles diffuser in an aeration system. In: International Conference on Environment 2010 (ICENV 2010), 13th - 15th December, 2010, Penang, Malaysia.. http://eprints.utp.edu.my/4119/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TD Environmental technology. Sanitary engineering
spellingShingle TD Environmental technology. Sanitary engineering
Winarto, F.E.W.
Kutty, S.R.M.
Gilani, S.I.U.
Isa, M.H.
Aziz, A.A.A.
Zid, W.K.W.
Nitrification using submerged micro bubbles diffuser in an aeration system
description The objectives of this research are to evaluate the effectiveness of the micro- diffuser in enhancing nitrification in wastewater treatment. The nitrification performances of micro- and milli- diffusers were evaluated by measuring NH4-N and NO3-N contents. The experimental values were also compared with the theoretical values derived from the kinetic calculations. Two reactors A and B, of size 140x140x500 mm were constructed using perspex to treat municipal wastewater. Aeration in the reactors A and B was provided using millimeter diffuser and micro diffuser, respectively. The diffusers consisted of perforated aluminium plate to generate millimeter bubbles and sintered porous glass to generate micro bubbles. Compressed air was forced through two parallel flow meters at a flow rate of 2.5 L/min. Biomass for both reactors was acclimatized prior to treating the municipal wastewater in the reactors. Two batch experiments were conducted at 26°C for the biological study and in the estimation of the kinetic parameters for the nitrification. Samplings were conducted at 1 hour, 3 hours, and every 6 hours respectively, until 48 hours for each batch of the experiment. The main parameters tested were NH4-N and NO3-N. The results of the study indicated that ammonia-nitrogen removal was achieved at 90% and 87%, for the micro- and milli- diffusers, respectively. The final average ammonia-nitrogen removal rate was found to be 0.48 mg/L.hr and 0.28 mg/L.hr, for micro and milli diffuser, respectively. The experimental degradation rate also closely follows the theoretical degradation rate with the theoretical degradation rate from 36-48 hrs. of aeration found to be 0.5 mg/L.hr and 0.46 mg/L.hr for micro and milli diffuser, respectively. It can be concluded that the use of micro diffuser can provide higher ammonia-nitrogen removal from wastewater.
format Conference or Workshop Item
author Winarto, F.E.W.
Kutty, S.R.M.
Gilani, S.I.U.
Isa, M.H.
Aziz, A.A.A.
Zid, W.K.W.
author_facet Winarto, F.E.W.
Kutty, S.R.M.
Gilani, S.I.U.
Isa, M.H.
Aziz, A.A.A.
Zid, W.K.W.
author_sort Winarto, F.E.W.
title Nitrification using submerged micro bubbles diffuser in an aeration system
title_short Nitrification using submerged micro bubbles diffuser in an aeration system
title_full Nitrification using submerged micro bubbles diffuser in an aeration system
title_fullStr Nitrification using submerged micro bubbles diffuser in an aeration system
title_full_unstemmed Nitrification using submerged micro bubbles diffuser in an aeration system
title_sort nitrification using submerged micro bubbles diffuser in an aeration system
publishDate 2010
url http://eprints.utp.edu.my/4119/1/Nitrification_using_submerged_micro_bubbles_diffuser_in_an_aeration_system.pdf
http://eprints.utp.edu.my/4119/
_version_ 1738655321248759808
score 13.211869

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