Fig. 4

Effect of aeration on NH4+-N, AP and AK of sediment. (a) aeration rate of 2.4 L min−1; (b) aeration rate of 3.4 L min−1 and (c) aeration rate of 4.4 L min−1.

Effect of aeration on NH4+-N, AP and AK of sediment. (a) aeration rate of 2.4 L min−1; (b) aeration rate of 3.4 L min−1 and (c) aeration rate of 4.4 L min−1.