Material

Source

Test period

days

P concentration

mg∙l⁻¹

Particle size mm

Loading rate

l∙d⁻¹∙g⁻¹

Volume of material

cm³

P retention

mg∙g⁻¹

Reference

LFBA

Warrington power station,

North West England

0.127

10

0.9 - 2.3

0.96

1021

1.22

Filtralite P

Saint-Gobain, Norway

229

4.9

0.5 - 4

0.00048

18800

0.473

[29]

Shellsand

Natural material produced from shell, snail and alga, Norway

303

10

3 - 7

0.00027

18300

0.497

[29]

Iron-coated

sand

Someren, water treatment

plant, Netherlands

238

3.95

<2

0.0039

n.a

n.a

[30]

Electric furnace slag

Steel mill Ft. smith, AR, USA

0.2

0.5-15

6.35 - 11

0.29 - 4.6

1.1

1.3

[31]