Table 3.

Site energy distribution parameters of Pb²⁺ adsorption onto PSMPs at pH 6.0.

CHA (mg·C/L)	Ionic strength (mmol/L)	Em* (KJ/mol)	F(Em*) (mg·mol/(g·KJ))	μ(E*) (KJ/mol)	σe*(KJ/mol)
0.00	0.100a	30.7	0.0444	30.7	4.193
	1.00a	30.3	0.0420	30.3	4.188
	10.0a	29.9	0.0382	29.9	4.183
	0.0300b	30.2	0.0407	30.2	4.189
	0.330b	29.8	0.0365	29.8	4.186
	3.33b	29.2	0.0361	29.2	4.184
1.00	0.100a	32.2	0.123	32.2	4.300
	1.00a	32.1	0.106	32.1	4.292
	10.0a	31.1	0.0967	31.1	4.271
	0.0300b	32.1	0.113	32.1	4.293
	0.330b	31.7	0.0999	31.7	4.279
	3.33b	31.1	0.0897	31.1	4.257
2.50	0.100a	32.5	0.185	32.5	4.457
	1.00a	32.2	0.163	32.2	4.403
	10.0a	31.2	0.148	31.2	4.386
	0.0300b	32.2	0.175	32.2	4.422
	0.330b	32.1	0.151	32.1	4.401
	3.33b	31.2	0.135	31.2	3.386
5.00	0.100a	33.1	0.213	33.1	4.662
	1.00a	33.0	0.182	33.0	4.631
	10.0a	32.9	0.157	32.9	4.596
	0.0300b	33.0	0.197	33.0	4.654
	0.330b	33.0	0.166	33.0	4.622
	3.33b	32.8	0.142	32.8	4.589

^aNaNO₃.

^bCa(NO₃)₂.