Date : Thursday, 24th March 2011
On this day, our class members Faris, Asyraf, Saad, Rahmat and Hariz were doing an activity of biological oxygen demand activity. They getting samples of water from pond, drain and water filter in our school. These are the result and report for this activity.
- The aim of this biological oxygen demand (BOD) activity of a sewage treatment and to analyse data on water pollution.
- reduce organic content (reduction of BOD)
- reduction of nutrients.
get the samples of different water
Getting water samples of pond water
our group member Asyraf get a water samples from drain
get a water samples from water filter