Sample ID

Collection Point

Sample State

Colour

pH

Temperature (˚C)

Sample 1

Main pit

Liquid

Dark Green

9.23

26

Sample 2

Converging point of pits 1 and 2

Liquid

Deep Red

8.40

26

Sample 3

Converging point of pits 4 and 5

Liquid

Blue

7.91

28

Sample 4

Bleaching pit

Liquid

Light Yellow

8.22

26

Sample 5

Converging point of pits 2 and 3

Liquid

Blackish

7.91

26

Sample 6

VAT (converging point of all coloured wastewater before waste treatment)

Liquid

Dark Green

8.25

28

Sample 7

RO Reject

Liquid

Dark blue

9.12

27

Sample 8

Sludge

Sludge

Dark brown

7.84

28

Sample 9

End of pipeline

Liquid

Greenish

8.71

27