Element

Before Treatment (ppm)

After Treatment (ppm)

Na

0.433

0.432

Mg

0.278

0.258

Ca

2.055

2.005

V

0.1

0.1

Fe

1.062

0.895

Ni

0.1

0.1

Cu

0.1

0.1

Al

2.636

2.615

As

0.142

0.1

Pb

0.1

0.1