Leong Siew Yoong, Kutty Shamsul Rahman Mohamed, Malakahmad Amirhossein, Tan Chew Khun
Department of Petrochemical Engineering, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia; Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia.
Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia.
Waste Manag. 2016 Jan;47(Pt A):84-90. doi: 10.1016/j.wasman.2015.03.030. Epub 2015 Apr 11.
Hermetia illucens larvae by nature are a decomposer which fed on organic wastes. This study explores the potential of producing biodiesel using lipids from H. illucens larvae. Three types of organic wastes (sewage sludge, fruit waste and palm decanter cake from oil palm mill) were selected based on considerable generation and disposal concern in the area of study as well as lack of investigations as feed for Hermetia illucens larvae in current literatures. Growth rate of the larvae was determined with studying the changes in the biomass per day. H. illucens larvae fed with fruit waste and palm decanter cake have shown growth rates of 0.52±0.02 and 0.23±0.09 g d(-1), respectively. No positive sign of growth were observed in the larvae fed with treated sewage sludge (-0.04±0.01 g d(-1)). Biodiesel as fatty acid methyl ester (FAME) was synthesized by transesterification of the larvae lipid using sulphuric acid as catalyst in methanol. FAME produced was ascertained using ATR-FTIR spectroscopy and GC-MS. The main compositions of fatty acid were found to be C12:0, C16:0 and C18:1n9c. Fatty acid composition of C12:0 fed with fruit waste, sewage sludge and palm decanter was found to be most abundant in the larvae lipid. The amount of C12:0 obtained was 76.13%, 58.31% and 48.06%, respectively. In addition, fatty acid of C16:0 was attained at 16.48% and 25.48% fed with sewage sludge and palm decanter, respectively. Based on the findings, FAME derived from larvae lipids is feasible to be used for biodiesel production.
黑水虻幼虫本质上是一种以有机废物为食的分解者。本研究探索了利用黑水虻幼虫脂质生产生物柴油的潜力。基于研究区域内大量产生和处置问题以及当前文献中缺乏对黑水虻幼虫饲料的研究，选择了三种有机废物（污水污泥、水果废料和油棕厂的棕榈果渣饼）。通过研究幼虫每日生物量的变化来确定其生长速率。以水果废料和棕榈果渣饼为食的黑水虻幼虫生长速率分别为0.52±0.02和0.23±0.09 g d(-1)。以处理后的污水污泥为食的幼虫未观察到生长的积极迹象（-0.04±0.01 g d(-1)）。以硫酸为催化剂在甲醇中对幼虫脂质进行酯交换反应合成了作为脂肪酸甲酯（FAME）的生物柴油。使用衰减全反射傅里叶变换红外光谱（ATR-FTIR）和气相色谱-质谱联用仪（GC-MS）确定产生的FAME。发现脂肪酸的主要成分是C12:0、C16:0和C18:1n9c。在以水果废料、污水污泥和棕榈果渣为食的幼虫脂质中，发现C12:0脂肪酸最为丰富。获得的C12:0含量分别为76.13%、58.31%和48.06%。此外，以污水污泥和棕榈果渣为食时，分别获得了16.48%和25.48%的C16:0脂肪酸。基于这些发现，源自幼虫脂质的FAME可用于生物柴油生产。
