What is the difference Between Chemical Physical and Biological ETP

Difference Between Chemical Physical and Biological ETP are Given below:

TYPE OF INSTALLATION

CHE-PHY

BIOLOGICAL

General purifying yield

~50%

> 90%

COD/BOD Reduction

50-60%

90-95%

Color Elimination

Yes

Yes > 90%

Ammonia Elimination

No

Yes >95%

Nitrogen Elimination Total

~30%

>95%

Phenol Elimination

No

>90%

Final Salinity With Respect Water To be purified

Higher then input

Same as Input

Sludge produced per m3 of Effluent Treatment

6 kg

0.1-0.2 kg

Sludge produced per Kg of COD

1.8 kg

0.2 kg

Sludge character

Toxic

Non-Toxic

Sludge disposal

Very Difficult

Very-Easy

Running cost per m3 of Effluent Treatment

TK.25.0-30.0/-

TK.3.5-4.0/-

Initial cost (Chemical-Physical Base 100)

100

200/220

Space Occupied For 1000 m3 /day

300-350m3

At least 600 m3

Reliability

30%

80%

Possibility Fish Life Directly In Purified H20

No

Yes

Possibility Reuse of Purified Water for Irrigation

No

Yes

Compliance With European Laws (very strict)

No

Yes all

Produced of bad smell

Yes

No

Treatment Quality

Improper, Bangladesh Standard

Proper, European Standard

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