Table 4.

Removal efficiency of inorganic elements (%) in DW according to polymer concentration.

		removal efficiency (%)
polymer concentration (g·L−1)	Al3+	Co2+	Cr3+	Ni2+	Zn2+	Ca2+	Fe3+	K+	Mg2+	Mn2+	Sr2+	pH
5	81	27	>98	37	62	34	63	44	4	0	32	5
10	85	39	>98	47	69	57	71	42	9	35	56	5
15	88	46	>98	42	74	74	69	40	13	55	72	5
20	88	52	>98	47	74	86	70	36	22	72	84	5