Enhanced Removal of Lead by Chemically and Biologically Treated Carbonaceous Materials

Table 2

Sorption capacity values of lead by modified active carbon sorbents in various buffer solutions.

pH	Metal sorption capacity (μmol g^−1) in various buffer solutions*
	AC	Ox-AC	Rd-AC	Ox-AC-BY	Rd-AC-BY
1	20	40	30	200	190
2	30	90	100	256	225
3	50	100	135	345	230
4	60	105	170	400	245
5	90	125	190	405	300
6	90	135	280	440	340
7	80	200	280	500	390

*Values are based on 𝑛=3 with standard deviation of 2.0–4.0%.