Bioresources and Bioprocessing

Table 2 Measurements of phosphate, chloride, nitrate, and sulfate concentrations in the filtrate of the non-ozonized pine 400 (P400 UN), wet-ozonized pine 400 (P400 90 W), non-ozonized rogue biochar (RBC UN) and dry-ozonized rogue biochar (RBC 90D)

From: Ozonized biochar filtrate effects on the growth of Pseudomonas putida and cyanobacteria Synechococcus elongatus PCC 7942

	Phosphate (mg/L)	Chloride (mg/L)	Nitrate (mg/L)	Sulfate (mg/L)
P400 UN	0	0.05 ± 0.03	0	0
P400 90W	0	0.10 ± 0.03	0	0
RBC UN	4.92 ± 0.60	12.76 ± 0.07	0	27.60 ± 0.56
RBC 90D	32.80 ± 0.26	4.22 ± 0.32	22.75 ± 0.20	22.92 ± 0.76

The filtrate was obtained from the 2nd wash (25 mL) of 1.5 g biochar. The values shown are averages of 3 replicates (n = 3). The conductivity signals by IC are shown in Additional file 1: Fig. S15

Back to article page