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SEDIMENTATION METHOD USED IN PURIFYING USED COOKING OIL

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Shane Chan

on 7 March 2014

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Transcript of SEDIMENTATION METHOD USED IN PURIFYING USED COOKING OIL

SEDIMENTATION METHOD USED IN PURIFYING USED COOKING OIL
RATIONALE
In the present world, oil in general plays a significant role. It can be used in many forms. One, it is used as a source of energy. Cars, appliances, machines, ships, and planes utilize oil for them to efficiently function. But, one of its greatest uses for humanity is mainly for cooking.

Unfortunately, most of the oil used in frying is usually thrown away afterwards. Practically and economically speaking, the demand of oil leads to the increase of its value. To address the problem, a study was proposed. This study was about sedimentation method used to purify used cooking oil. This study aimed to give people the chance to utilize or reuse cooking oil.
SIGNIFICANCE OF THE STUDY
The recycling of cooking oil provides a form of revenue for restaurants, which are sometimes compensated by cooking oil recyclers for their deep fryer oil. But sad to say, these recyclers dispose too much oil which can cause the clogging of sewage due to the build-up of fats.
This study can not only help restaurants save but also those who consume oil at home. Through this, there will be less hassle for them in availing brand new oil plus the price will be lighter on their part since the materials used are easy to find and cheap.
REVIEW OF
RELATED LITERATURE
Different oils come from different sources which means it undergoes different processes. There are times when antioxidants are added to delay rancidity or spoilage.

This study used the sedimentation method to purify used cooking oil. To aid the sedimentation method, activated carbon and clay soil was also used.

Clay soil, also known as “heavy soil” was used in the sedimentation method since it absorbs and retains more components and substances. It also has poor drainage making it possible to absorb the small particles found in used oils.

During the filtration process, activated carbon was also used. To make activated carbon, manufacturers heat common charcoal in the presence of a gas that causes the charcoal to develop lots of internal spaces or “pores.” These pores help activated charcoal “trap” chemicals.

STATEMENT
OF
THE PROBLEM
What other components, materials or chemicals can effectively purify used cooking oil?
What properties are in those chemicals that could help the sedimentation method in purifying used cooking oil?
METHODOLOGY
PROCEDURES
Every 20 ml cooking oil was prepared in mayonnaise jars. Used oil and unused oil were also prepared into mayonnaise jars.
The three setups were then mixed with 40 g clay soil using a stirring rod.
The mixtures were set aside until the suspended materials settled down.
This procedure was done twice for Setup 2 and thrice for Setup 3.
The settled clay was separated from the oil.
5 g of activated carbon was added into the oil for 24 hours.
After 24 hours, the oil was allowed to pass through a filter paper for the final stage.
The viscosity was tested. It was gathered using a medicine dropper and a stopwatch.
GATHERING OF DATA
CONCLUSION
It was concluded that from the three setups, Setup C had the best results. It was considered the best since it was the least viscous among the three and its physical appearance was the closest to the unused oil.
It was also concluded that the sedimentation method is not enough to purify entirely the used cooking oil. In order to effectively purify it, the filtration method should also be there. Because of the properties of the clay soil and activated carbon, these are considered potential purifiers of used cooking oil.

RECOMMENDATIONS
More tests to be done to the three setups aside from its viscosity and physical appearance is recommended for future studies. Finding its melting point and comparing it to the melting point of a known cooking oil is the most recommended test.

Trying of other kinds of oils is also recommended. The researchers also recommend to allot more time on the study in order to try using the purified using oil samples in cooking.
BIBLIOGRAPHY
http://www.ehow.com/list_6386349_characteristics-clay-soil_.html
http://www.webmd.com/vitamins-supplements/ingredientmono-269-ACTIVATED%20CHARCOAL.aspx?activeIngredientId=269&activeIngredientName=ACTIVATED%20CHARCOAL
http://chemistry.about.com/od/chemistryfaqs/f/charcoal.htm
http://www.spectrumorganics.com/?id=240
Merriam-Webster Dictionary
Bato Balani Vol. 26 No. 2

DOCUMENTATION
THANK YOU!WE ARE NOW READY TO ANSWER YOUR QUESTIONS.
Will the sedimentation method be effective enough to purify the used cooking oil?
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