Full-scale comparison of N 2 O emissions from N/DN SBR operation - - PowerPoint PPT Presentation

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full scale comparison of n 2 o emissions from n dn sbr
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Full-scale comparison of N 2 O emissions from N/DN SBR operation - - PowerPoint PPT Presentation

May 17, 2023 307 likes •365 views

Full-scale comparison of N 2 O emissions from N/DN SBR operation versus one-stage deammonification MBBR treating reject water and optimization with pH set-point Linda Kanders, Mlardalen University and Purac AB PhD Student

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Full-scale comparison of N2O emissions from N/DN SBR operation versus

  • ne-stage deammonification MBBR

treating reject water – and optimization with pH set-point

Linda Kanders, Mälardalen University and Purac AB PhD Student Rejektvattenseminarium 4 - 5 December 2018 Sundets avloppsreningsverk, Växjö

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SLIDE 2

Reject water treatment, Norrköping, Sweden

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WWTP Reject water 135 000 pe Nitrogen Load 1650 kg/d 250 kg/d 1000 m3 reactor volume

Deammonification N/DN

WWTP Reject water 135 000 pe Nitrogen Load 1650 kg/d 250 kg/d 1000 m3 reactor volume Year 2000- 2017 N/DN SBR Year 2017- Deammonification MBBR

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N/DN SBR versus DeAm in MBBR

N/DN SBR

A Continous in and outflow M A M A M A M A M A M A M A M

Length of aeration regulated by PI-regulator with pH as input

Inflow Mixng ‐ Denitrifcation

Decantation

Sedimentation

Aeration ‐ Nitrification Ethanoldosage

0 1 2 3 4 5 6 7 8h

Deam. MBBR

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SLIDE 4

N2O Measurements Methods

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N2O(g) N2O(aq) Intermittant aeration EN2O Nitrogen Load (TN)

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SLIDE 5

Thank You!

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Questions?

FTN 0.14% FTN FTN 0.5-0.7% FTN 10% DeAm DeAmpH=7.6 N/DN linda.kanders@purac.se jing-jing.yang@ivl.se christian.baresel@ivl.se jesus.zambrano@mdh.se