Skip to main content
. Author manuscript; available in PMC: 2022 Jul 5.
Published in final edited form as: Sci Total Environ. 2021 Jul 16;797:149092. doi: 10.1016/j.scitotenv.2021.149092

Table 3. Simulation set-up.

Scenarios Removed flocs (% of initial flocs) Influent NH4++ g N m-3) Influent COD (g COD m-3) Aeration strategy Pulse dosage
Pre-simulation (5000 days) to set initial conditions for all scenarios - 800 800 Constant DO (*)
(=0.5 g O2 m-3)		 -
Stop influent COD at constant Qair (cf. day 264) - 800 from 800 to 0 Constant Qair (*) (=0.98 m3 d-1) -
Floc removal at constant DO (cf. Phase DO) 15% 800 800 Constant DO (*) (= 0.5 g O2 m-3) -
Floc removal at constant Qair (cf. Phase Qair-a) 15% 800 800 Constant Qair (*) (= 0.98 m3 d-1) -
Batch test 1: Effect of additional COD dosage - - - No aeration

  • At t = 0 h: add NO3- and COD

  • At t = 0.5 h: add COD
Batch test 2: interaction between anammox and denitrification - - - No aeration

  • At t = 0 h: add NO3- and COD

  • At t= 0.5 h: add NH4+
Reference: denitrification - - - No aeration At t = 0 h: add NO3- and COD
(*)

Value corresponding with maximum nitrogen removal efficiency at initial conditions, namely 90%