Back at it again...

WEEK 4

Water Monitoring

• Total Kjehdahl Nitrogen

The total Kjehdahl nitrogen in the sample is 0.

• Total Suspended Solid

TSS  =  (Final weight - Initial weight)

              40 ml

                        = 0.09892 g - 0.0861 g

                   40 ml

     = 0.0031 g

    40 ml

                   = 0.0000775 g/ml

• Total Dissolved Solid

TDS  =  (Final weight - Initial weight)

              40 ml

                        = 48.2554 g - 48.0742 g

                   40 ml

     = 0.1812 g

      30 ml

                   = 0.00604 g/ml

• Turbidity

The turbidity of the sample is 11.2 NTU

• Colour

The colour of the blank is 0 Pt/Co
      The colour of the sample is 102 Pt/Co

• pH

The pH value of the sample is 7.43

• Conductivity

The conductivity of the sample is 104.0 µS

• Biochemical Oxygen Demand

         Day 1

         Day 5

Results

Discussion

For week 4, compare to week 3, the result are slightly different. For biological oxygen demand(BOD), for week 3 for specifically in dilution 25 ml the value 0.11833 mg/L but in week 4 the value decrease to 0.015 mg/L. For dilution 50 ml the value 0.45 mg/L but in week 4 the value decrease to 0.0408 mg/L but for dilution 100 ml the value 1.0133 mg/L but in week 4 the value decrease to 0.508 mg/L. According to the result of colour, there is a big different between week 3 and week 4. On week 3, the value of colour measured was 0.4 Pt/Co but in week 4 , the colour measured was 102 Pt/Co. It shown that the colour of Taman Tasek Tampin is unstable . For Turbidity, it also show a big different between week 3 and week 4. The value of turbidity in week 3 is 13.5 NTU and in week 4 the value is decrease to 11.2 NTU. While the result for conductivity quite different which is the value is increase from 92.1 µS in week 3 to 104.0 µS in week 4. The pH for week 3 and week 4 did not show so much different which in 6.88 in week 3 and 7.43 in week 4. For temperature are quite similar on both week which is 23.3˚C in week 3 and 23.30˚C in week 4. For total suspended solid show  some quite big gap which is on week 3 is 0.00023675 g/ml while in week 4 is 0.0031 g/ml. For total dissolved solid also show some large different between both week. The value for week 3 is 0.02475 g/ml and the value increase in week 4 to 0.1812 g/ml. And last but not least, the value of total Kjeldahl Nitrogen is constant both week. The value is 0.