UPM Institutional Repository

Treatment of Leachate Generated from Sewage Sludge Lagoon


Derum, Aidahapini (2002) Treatment of Leachate Generated from Sewage Sludge Lagoon. Masters thesis, Universiti Putra Malaysia.


The main objective of this research was to study the treatment of leachate generated from sludge lagoons using anaerobic and aerobic processes. Two methods were used to separate the sludge and leachate in sludge lagoons. The first method used a clay layer at the bottom of the lagoon. While, the second method used a filter media (sand and gravel) and underdrainage. The leachate was generated from four sets of tank with different depths (0.375 m and 0.75 m of sludge). The quality of leachate was measured in tenns of BOD, COD, TSS, VSS, E-coli, ammonia, nitrate, TKN, phosphorus and heavy metal. The results showed that the quality of treated leachate from the sand tanks is better than that of clay tanks. The percentage of BOD, COD, TSS, VSS and E-coli removed for sand tanks ranged from 96-97%, 95-96%, 95-97%, 94-96% and 99-99.5% respectively. While the percentages of BOD, COD, TSS, VSS and E-coli in the clay tanks ranged from between 91-93%, 90-93%, 86-89%, 86-90% and 90-92% respectively. Results show that filtration using sand and gravel is more effective in removing organic pollutant in leachate. Treatment using aeration tanks is effective in removing BOD, COD, TSS, VSS and E-coli. The percentage of removal of BOD, COD, TSS, VSS and E-coli were 95-96%, 96-97% and 99% respectively using 1 day retention time. Kinetic studies were carried out using Monod equations In order to find kinetic constants such as half velocity, Ks, Yield, Y, maximum rate of substrate utilisation, K, microorganism decay, KI and maximum growth rate, !lm. In addition, a prediction model is also studied by using Monod equations.

Download File

[img] PDF

Download (2MB)

Additional Metadata

Item Type: Thesis (Masters)
Subject: Sewage - Purification
Subject: Leachate
Call Number: FK 2002 12
Chairman Supervisor: Associate Professor Dr. Azni Idris, PhD
Divisions: Faculty of Engineering
Depositing User: Laila Azwa Ramli
Date Deposited: 05 May 2011 06:55
Last Modified: 05 May 2011 06:57
URI: http://psasir.upm.edu.my/id/eprint/10591
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item