S.No.

Property

Type/Value

1

Color

Dark green

2

Total dissolved solids

20,250 mgl-1

3

Oil and grease

20 mgl-1

4

BOD

168 mgl-1

5

COD

447 mgl-1

6

pH (1:2)

4.4

7

Sulphate

181 mgl-1

8

Phosphate

0.82 mgl-1

9

Cr (VI)

102 mgl-1

10

Zn (II)

88 mgl-1

11

Cu

0.52 mgl-1

12

Fe

6.8 mgl-1

13

Ni

13.1 mgl-1

Table 1: Physico-chemical properties of electroplating industrial effluent.