EVALUATION THE PERFORMANCE OF VARIOUS PARAMETERS USED TO CHARACTERIZE WASTEWATER FOR UTP SEWAGE TREATMENT PLANT & UTP OXIDATION POND

This report is a study for evaluation the performance of various
parameters usedto characterize wastewater for UTP Sewage Treatment Plant
and UTP oxidation pond.
University Technology Petronas Sewage Treatment Plant (UTP's
STP) is a treatment plant that used an Extended Aeration Activated Sludge
(EEAS). The sewage treatment plant is capableto treat effluent to a standard
A which is 20mg/l of BOD and 50mg/l of suspended solids. A hydraulic
loading off225 I/pe/dand an organic loading off 55 g/pe/dand sludge storage
of 40 days at 4% of solid were condered for design. The design basis flow
rate for this plant is about 5,175.00 m3/d or 23,000 population equivalent.
This sewage treatment plant consists of inlet chamber, grit and grease
chamber, distribution chamber, anoxic zone, aeration tank, clarifier and
chlorination tank.
UTP oxidation pond was designed to support 2000 populations from
UTP and classified as a facultative pond which the stabilization ofwastewater
is done by a combination of aerobic, anaerobic and facultative bacteria. The
influent of wastewater that enters to the pond is assumed consisted of 250
mg/1 BODand 300 mg/1 of total suspended solids (TSS). Thetreated effluent
for this oxidation pond should meet the standard A limit which is 20 mg/1 of
BOD and 50 mg/1 of total suspended solid. This UTPoxidationpond contains
a rubbish trap chamber, parshall flume chamber, scum chamber, oxidation
pond and settling pond.
At the beginning stage, the problems are identified on the various
parameters such like biochemical oxygen demand (BOD) and total suspended
solids (TSS). Samples from UTP's STP and oxidation pond was taken and
identified frequently to analyzethe wastewater in the laboratory. The sample
was taken by using grab and composite sampling method at the influent and
effluent ofthe UTP's STP and UTP oxidation pond.