Substrate	P-adsorption maximum mg∙P∙g⁻¹	Reference
Ace ALD ochre	7.41	[21]
AMD flocs ? Lime treated	0.73	[22]
AMD flocs ? NaOH treated	0.76	[22]
AMD flocs ? NH₄ treated	0.86	[22]
Apatite	0.28 - 1.09	[23]
Avoca ochre	21	[24]
Babb Creek ochre	1.82	[21]
Bauxite	0.61	[25]
Blast Furnace Slag	0.40 - 0.45	[26]
Burnt oil shale	0.65	[25]
Coal ash	0.081 - 29.5	[27]
Dolomite	0.168	[28]
Dolomite sand	0.417	[29]
Fly Ash	0.62	[26]
Fly ash	5.5 - 42.6	[30]
Friendship Hill ochre	23.9	[21]
Gravel	0.03 - 0.05	[26]
Iron ochre (coal mine drainage treatment)	26	[31]
Iron-coated sand	27.4	[14]
Laterite	0.75	[32]
Minto Ochre	30.5	[33]
Ochre pellets	22	[31]
Polkemmet Ochre	26	[33]
Randy Camp ochre	5.53	[21]
Sands (Danish)	0.02 - 0.129	[34]
Shale	0.75	[32]
Shell sand	14 - 17	[35]
Shell sand	0.8 - 8.0	[36]
Shell sand	9.6	[37]
Steel Slag	0.38	[26]
Toby Creek ochre	22.6	[21]
West Virginia ochre	31.97	[38]
Zeolite	1	[32]
Zeolite	2.15	[39]