Reduction and Heavy Metal Stabilization of River Sediment by Hydrothermal Treatment

Table 6

Ecological risk assessment of the heavy metals in RS and HS.

Sample
	Zn	Cu	Cr	Cd	Ni	Pb	Zn	Cu	Cr	Cd	Ni	Pb
RS	4.04	2.26	0.54	0.75	0.46	6.63	4.04	11.32	1.08	22.56	2.73	33.14	74.87
HS-180-3	3.59	2.14	0.40	0.65	0.45	2.37	3.59	10.70	0.80	19.61	2.72	11.84	49.26
HS-220-3	3.43	2.12	0.34	0.60	0.45	1.30	3.43	10.60	0.68	18.14	2.67	6.52	42.04
HS-260-3	3.14	2.15	0.29	0.53	0.45	0.91	3.14	10.73	0.58	16.00	2.68	4.56	37.68
HS-260-0.5	3.78	2.17	0.42	0.70	0.46	3.20	3.78	10.84	0.84	21.11	2.74	16.02	55.32
HS-260-6	2.96	2.22	0.26	0.49	0.46	0.78	2.96	11.10	0.53	14.67	2.78	3.89	35.92