DOIONLINE 
DOIONLINE Publish In |
International Journal of Advances in Science, Engineering and Technology(IJASEAT)-IJASEAT |
 Journal Home Volume Issue |
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Issue |
Volume-4, Issue-4 ( Oct, 2016 ) | |||||||||
Paper Title |
Biogas Production From Pistachio (Pistacia Vera L.) Processing Waste | |||||||||
Author Name |
Celik I., Demirer G.N. | |||||||||
Affilition |
Dept. of Civil Engineering, University of Toledo, Ohio, USA, Dept. of Environmental Engineering, Middle East Technical University, Ankara, Turkey | |||||||||
Pages |
202-205 | |||||||||
Abstract |
Harvested pistachio nuts are covered with organic hull which is removed by de-hulling process. Most of the pistachio by-products which are produced during de-hulling process are considered as agricultural waste and often mixed with soil, to a lesser extent are used as feedstuff by local livestock farmers and a small portion is used as herbal medicine. This study investigated the anaerobic treatability and biogas generation potential of pistachio hull waste. The effect of pre-treatment on biogas generation potential was investigated. For this purpose, Biochemical Methane Potential (BMP) Assays were conducted for two Chemical Oxygen Demand (COD) concentrations of 22 and 33 g tCOD l-1 at the absence and presence of chemical and thermal pre-treatment methods. The results revealed anaerobic digestion of the pistachio de-hulling wastes and subsequent biogas production as a renewable energy source are possible. The observed percent COD removal and methane yield values of the pre-treated pistachio de-hulling waste samples were significantly higher than the raw pistachio de-hulling waste. The highest methane yield was observed as 213.4 ml CH4/g COD. Key words- Pistachio de-hulling waste, biogas, renewable energy, pre-treatment. | |||||||||
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