AMB Express

Table 1 Operational parameters and process performance

From: Comparison of the bacterial community composition in the granular and the suspended phase of sequencing batch reactors

Parameter	Unit	R1	R2	R3
t	H	4	4	4
OLR	kg COD/m³/day	3.71 ± 0.04	1.87 ± 0.04	0.91 ± 0.04
NLR	kg NH₄–N/m³/day	0.22 ± 0.02	0.22 ± 0.02	0.22 ± 0.02
COD:N ratio	–	100:6	100:12	100:24
Influent COD	mg/L	1416 ± 14	712 ± 14	346 ± 14
Influent NH₄–N	mg/L	85 ± 6	85 ± 6	85 ± 6
E_COD	%	98.3 ± 1.1	96.0 ± 1.4	86.3 ± 0.6
E_NH4	%	100	100	100
E_TN	%	65.5 ± 7.2	38.1 ± 16.4	0.4 ± 19.0
Effluent SS	mg/L	301 ± 98	133 ± 28	74 ± 13

Cycle length (t); organic and nitrogen loading rate (OLR, NLR); COD:N ratio; influent COD and NH₄–N concentration; removal efficiency (E) of COD, NH₄ and TN during the last 4 weeks; average effluent suspended solids concentration (SS)

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