Water filtrate

1^st filtrate

2^nd filtrate

0.5 F

1 F

2 F

0.5 F

1 F

2 F

Clay

1.00 ± 0.53^*

4.30 ± 0.17

4.01 ± 0.59

1.21 ± 0.23^*

3.53 ± 0.56

3.21 ± 0.28

Sand

4.01 ± 0.50

4.56 ± 0.58

4.45 ± 0.41

3.84 ± 0.70

3.87 ± 0.56

3.63 ± 0.77