Water quality parameter

Unit

Raw wastewater

Effluent (7-days) *

FAO (1985) irrigation standard [19]

Bangladesh standard limits for disposal in surface water bodies (ECR’97)

BOD₅

mg/l

226

1.38

<100

50

COD

mg/l

435

32

-

200

TDS

mg/l

2525

590

450 - 2000

2100

TSS

mg/l

190

35

50 - 100

150