Case study : the physical and chemical characteristic of sewage sludge from TAMAN BERCHAM treatment plant, IPOH PERAK/Mohd Anuar Abdul Nasir

Sludge are known as waste material or dewatered solid from a commercial or
industrial wastewater treatment plant and potable water treatment plants. It consists
of clay, microorganisms and chemical generated from the use of coagulant material.
The study of sludge is based on municipal treatment plant served by IWK Sdn Bhd.
The objectives of the study are to observe the characteristic of the sludge and
evaluate its potential for recycle or reused. The characteristic observed is physical
properties and chemical properties. In order to meet these objectives the several test
were done in the laboratory material such as sieve analysis, pH value test, moisture
content, classification to soil engineering and heavy metal test. The result from this
study indicates that the sludge is classified as sandy silt according to soil
engineering. The behavior of sandy silt are obtain and used as guide data in recycle
or reused of this sludge. Meanwhile, three elements were carryout from chemical
test. There are Lead Pb, Copper Cu and Zink Zn. The result show those element are
below limit that can harm the environment. Beside that this low content element may
be advantage while recycle or recompose with this sludge. For example, this sewage
sludge can use as raw material to produce lightweight aggregate, absorber for fixbed, and ceramic manufacture.