The teaching and learning process of switching to online does not prevent these students from engaging in creativity.
Especially making works that can be used by many people during the COVID-19 pandemic.
Davin Nayaka Manzila, a grade 9 student at SMPN 2 Surabaya City, creates creativity by utilizing used cooking oil waste.
During the face-to-face school shift at home, apart from studying, the girl who is often called Davin collects used cooking oil waste from neighbors, relatives and friends.
The waste will be processed into Samijel (used cooking oil soap).
According to her, used cooking oil waste is easy to find.
Moreover, used cooking oil waste also has a bad impact on the body. Such as the risk of cancer, bacteria, to obesity.
For her own manufacture, Davin first collected bagasse from the traders.
Then dry in the sun for 1-2 days to dry.
When dry, the used cooking oil waste is flushed and enters the pores of the bagasse.
After that soaked for 72 hours or 3 days.
Because the bagasse will reduce the free fatty acid levels significantly, from 0.30% to 0.15%.
So that used cooking oil can be reprocessed into other, more useful ingredients.
Once clear, dissolved with NaOH (sodium hydroxide) with water in an open place.
Because this solution can damage the respiratory organs. After late, wait for it to cool down, “he said.
Then, NaOH is treated with used waste cooking oil that is clear, blended, mixed with food coloring and flavorings.
If this waste uses chemicals it will cause unpleasant odors and disturb the smell area.
In contrast to non-chemical food colors, because it is safe to use when washing fabrics and is not sticky.
Until now, Davin has processed 57 liters of used cooking oil waste from the people around her.
Going forward, Davin will continue and develop his project.
“My hope is that many people are aware that used cooking oil is bad for nature and our bodies. Because it is not nature that needs us, but we who need nature,” she hoped.