从城市二级污泥中生产生物柴油。
Biodiesel production from municipal secondary sludge.
机构信息
School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
出版信息
Bioresour Technol. 2016 Sep;216:165-71. doi: 10.1016/j.biortech.2016.05.078. Epub 2016 May 21.
In the present study, feasibility of biodiesel production from freeze dried sewage sludge was studied and its yield was enhanced by optimization of the in situ transesterification conditions (temperature, catalyst and concentration of sludge solids). Optimized conditions (45°C, 5% catalyst and 0.16g/mL sludge solids) resulted in a 20.76±0.04% biodiesel yield. The purity of biodiesel was ascertained by GC-MS, FT-IR and NMR ((1)H and (13)C) spectroscopy. The biodiesel profile obtained revealed the predominance of methyl esters of fatty acids such as oleic, palmitic, myristic, stearic, lauric, palmitoleic and linoleic acids indicating potential use of sludge as a biodiesel feedstock.
在本研究中，研究了从冻干污水污泥中生产生物柴油的可行性，并通过优化原位酯交换条件（温度、催化剂和污泥固体浓度）来提高其产率。优化条件（45°C、5%催化剂和 0.16g/mL 污泥固体）可获得 20.76±0.04%的生物柴油产率。通过 GC-MS、FT-IR 和 NMR ((1)H 和 (13)C) 光谱确定了生物柴油的纯度。获得的生物柴油图谱表明，脂肪酸的甲酯如油酸、棕榈酸、肉豆蔻酸、硬脂酸、月桂酸、棕榈油酸和亚油酸占优势，表明污泥作为生物柴油原料具有潜在用途。
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