Figure 6From: Transformation of PVP coated silver nanoparticles in a simulated wastewater treatment process and the effect on microbial communitiesVariations of (a) NH 4 +- N, (b) NO 3 – N and (c) NO 2 - N profiles during one complete 6 h cycle on day 9. Where D and F are the decant and feed phases, respectively.Back to article page