Waste Pollution

Case StudyGROUP 8

EDNA TAN AI LIN A132928

SONIA DILIP PATEL A133115

TAN CHIN YEE A135583

JANANI VELAYUDHAN A132456

NURUL NADIA BINTI NGAH A131462

PARAMETERS ANALYSED

SUSPENDED

SOLIDS

pHTEMPERATURE

TURBIDITY

DISSOLVEDOXYGEN

AMMONIA

NITROGEN

COD

NITRATENITROGEN

PHOSPHATE

COLOUR

SUSPENDED SOLIDCondition BEFORE RAIN AFTER RAIN

Layer (average

values)

Before cafe After cafe Before cafe After cafe

TOP 100 150 50 55

MIDDLE 110 115 45 50

BOTTOM 60 65 30 35

pHCondition BEFORE RAIN AFTER RAIN

Layer (average

values)

Before cafe After cafe Before cafe After cafe

TOP 6.76 6.52 6.86 6.63

MIDDLE 6.77 6.54 6.83 6.66

BOTTOM 6.76 6.55 6.85 6.78

Class III

Standard B

within the limit

of 100 mg/L

Standard A

within the limit

of 6.0 -9.0

TEMPERATURECondition BEFORE RAIN(⁰C) AFTER RAIN(⁰C)

Location Before cafe After cafe Before cafe After cafe

TOP 25.8726.17 26.30 26.37

MIDDLE 25.6725.80 26.10 26.20

BOTTOM 25.5325.77 25.93 26.07

TUBRIDITY

Standard A

within the

limit of 40⁰C

Class II

DISSOLVED OXYGENCondition BEFORE RAIN(mg/L) AFTER RAIN(mg/L)

Layer (average

values)

Before cafe After cafe Before cafe After cafe

TOP 3.14 2.96 4.69 4.64

MIDDLE 3.35 3.10 4.92 4.86

BOTTOM 3.44 3.18 5.07 5.04

AMMONIA NITRATE

Condition BEFORE RAIN AFTER RAIN

Layer (average

values)

Before café After cafe Before cafe After cafe

TOP 0.16 0.18 0.21 0.26

MIDDLE 0.14 0.17 0.17 0.24

BOTTOM 0.11 0.15 0.15 0.21

Class III

within the

limit of 3.0 –

5.0 mg/L

Standard A

within the

limit of 10

mg/L

CHEMICAL OXYGEN DEMAND (COD)

NITRATE NITROGEN

Class IIA

Standard A

within 120

mg/L limit

Standard A

within 10

mg/L limit

PHOSPHATECondition BEFORE RAIN(mg/L) AFTER RAIN(mg/L)

Layer (average

values)

Before cafe After cafe Before cafe After cafe

TOP 0.24 0.26 0.28 0.29

MIDDLE 0.23 0.24 0.26 0.27

BOTTOM 0.22 0.22 0.25 0.26

COLOURCondition BEFORE RAIN AFTER RAIN

Layer (average

values)

Before cafe After cafe Before cafe After cafe

TOP 123 126 92 95

MIDDLE 126 126 94 96

BOTTOM 129 129 96 97

Standard A

within 5 mg/L

limit

Class II A

within limit

of 150 mg/L

PtCo

•

CLASS III

1. Increasing dissolved oxygen

• Sample result class III (3 to 5 mg/L)

• Install mechanical aeration system

2. Decreasing turbidity

• Sample results class II

• Adding coagulant and filtering the waste

• encourage growth of submerged aquatic plants which covers 50% or more of the bottom surface area

3. Suspended solid and colour

• Water clarity – improve by stabilizing bare soils by encouraging coverage vegetation.

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