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| dc.description.abstract | It has been modeled Wastewater Treatment
Plant (WWTP) and conducted experiments of
wastewater treatment in Kampung Batik Laweyan solo
using a model of the WWTP. WWTP consists of three
tubs, where number 1 of tub is used to hold
unprocessed waste, number 2 is used for coagulation
and number 3 is used for the process of sedimentation.
Sewage treatment experiment conducted by flowing
sewage from number 1 of tub the nember 2. In the
number 2 of tub, Chitosan Sulfate added and stirring,
after which the sewage flowed into the number 3.
Number 3 of tub is a sectional tub so that clots will hit
the bulkhead and then a process of sedimentation. The
output of the number 3 is the waste that has been
processed and then analyzed its COD parameter.
The experiments made from the variation of waste flow
rate and the speed of affixing chitosan sulfate.
Variations in flow rate of the waste that is: 2 L / h, 3 L /
h, 4 L / h, 5 L / h and 6 L / h. For each flow rate of the
waste created variation rate of addition of chitosan
sulfate, that is 50 mg / min, 100 mg / min, 200 mg / min,
300 mg / min and 400 mg / min. For each variation of
these experiments determined the percentage reduction
in COD.
Consider from the waste flow rate, the experimental
results showed that the greater of the flow rate causes
the smaller of the percentage of COD reduction, where
the percentage reduction in COD seen constant starting
at a flow rate of waste 3 liter / hour.
Consider from the rate of Chitosan Sulfate addition,
experimental results show that the faster addition of
chitosan sulfate causes percentage reduction in COD
greater, where the percentage reduction in COD seen
constant starting at a speed addition of Chitosan
Sulfate 300 mg / min.It can be concluded that the
optimum flow rate of the waste is 3 liters / hour, while
the optimum speed of Chitosan Sulfate affixing is 300
mg / min.
Keywords: chitosan, chitosan sulfate, coagulation,
COD | en_US |
