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Fulltext Identification and evaluation of wastes from biodiesel production process

Hayder, G., Puniyarasen, P.

Journal of Advanced Research in Applied Sciences and Engineering Technology, 2016;3(1):21-29.
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Biodiesel is an alternative fuel for diesel produced from waste oils, vegetable oils
and animal fats. Biodiesel is produced using chemical process called transesterification. The
main target of this study is the identification and evaluation of wastes from that process. Soap
and glycerol have been identified as wastes from this biodiesel production process. Soap and
glycerol were collected from a Biodiesel Production Plant. In one batch of biodiesel production
process, 100 L of glycerin and 99 L of soap produced. Evaluation of these wastes was based
on Chemical Oxygen Demand (COD) test, Total Suspended Solid (TSS) test, pH test, and Oil
& Grease (O&G) test. Results of the above mentioned tests were compared with Acceptable
Conditions from Environmental Quality (Industrial Effluents) Regulations 2009 (PU (A) 434)
to identify the impact of the wastes towards the environment. For the soap, COD and O&G are
not within the acceptable conditions of the regulations. On the other hand, for glycerin, COD
is not in acceptable range of the regulations. However, the glycerin is not discharged into the
environment since glycerin has been collected and kept in storage for the further in anaerobic
digestion. On the other hand, soap couldn’t be discharged into the drain. This is not
recommended because of the high value of COD and O&G. This may cause pollution to the
environment and may endanger the life of human beings. Copyright © 2016 Penerbit
Akademia Baru - All rights reserved.

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