6.2 Comparison of all runs
From Table 35, the highest % TOC removal of all runs is 74.76% when use 1 ml of
overnight Toilet Care Granules to treat 50 mg/l of milk wastewater. %TOC removal keeps
constant between 73-74% when use different concentration of Overnite Toilet Care
Granules to treat milk wastewater. Using 5.5 ml of baker's yeast or liquid drain care to treat
150 mg/l of soybean at 24 hrs can get the almost same results, around 36% TOC removal.
From Table 36, Baker's yeast has the same efficiency (36% and 39%) to treat 150
mg/l milk and soybean wastewater, but it takes longer time for soybean wastewater to have
a higher get its highest pollutant removal. When using 5.5 ml of G1 to treat milk and
soybean wastewater, the highest TOC removal happened at 4 hours.
From Figure 35, Baker’s yeast and Overnite Toilet Care Granules were very
effective bioproduct to reduce amount of TOC of milk wastewater and their highest
removal rate were almost the same. G1 also can be used to treat milk wastewater. Figure 36
showed that G1 was the most suitable bioproduct to remove TOC from soybean milk
wastewater. Using Overnite Liquid Drain Care and Baker’s yeast got the same TOC
removal rate. Figure37 compared the %TOC removal between milk and soybean milk
when same types of bioproducts were used. The results showed Baker’s yeast is more
suitable to treat milk wastewater and the removal rate of milk wastewater was almost two
times higher than the removal rate of soybean milk wastewater. The TOC removal rate of
milk and soybean milk by using Overnite Liquid Drain Care and G1 were almost same.
From Figure 38, it was clear that the highest %TOC removal rate of milk wastewater was
almost the same as the highest %TOC removal rate of soybean milk wastewater. Figure 38
indicated that the best bioproducts to remove TOC from milk wastewater were Baker’s
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yeast and Overnite Toilet Care Granules. Bacteria in Overnite Liquid Drain Care
effectively removed TOC from soybean milk wastewater. Figure 39 compared the TOC
removal rate of all runs. The highest TOC removal rate happened by using Liquid drain
care to treat soybean milk wastewater. When the highest TOC removal rate happened, the
removal rates by using Baker’s yeast to treat milk wastewater were very low. That
indicated the highest %TOC removal and highest TOC removal rate did not happen at the
same time.
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