Abstract:
The Cilemahabang River has experienced a decrease in water quality caused by
human activities such as settlements and especially from industry. Environmental
degradation is caused by waste that isn't treated and discharged directly into the
river, as well as by the high level of development along the rivers, which also
reduces the capacity of the rivers to carry pollution. Increased organic matter in
water will have an impact on reducing water quality, resulting in a decrease in dissolved
oxygen. A water pollution level test can be carried out to determine the presence
of these pollutants, using a COD test to determines the oxygen required by
oxidizing agents to oxidize organic matter in water. One way is to use aeration
technology, which is a method of adding oxygen to the waste solution to increase
the amount of dissolved oxygen so that it can provide oxygen to decomposing
microorganisms to reduce the levels of organic matter in the water. The research
objective is to determine constant value of the kinetic rate removal reaction. The
results showed that for each treatment of aeration and control is effective percent
removal in COD. The constant value of the kinetic rate COD removal is 0.0005
hour1 in the regression linear 0.9983 at an airflow rate 4.5 L/min. And for controls
in the third sample with removal constant value is 0.0002 hour1
in regression
linear 0.9944.
