TY - BOOK AU - Essam Mohamed Abdelalim Abdelsalam AU - Helmy Elsayed Hassan Mohamed , AU - Mohamed Samer , AU - Yehia Abdelhamid Badr , TI - Application of laser and nanotechnology to increase biogas production / PY - 2015/// CY - Cairo : PB - Essam Mohamed Abdelalim Abdelsalam , KW - Irradiation KW - laser radiation KW - Nanotechnology N1 - Thesis (Ph.D.) - Cairo University - National institute of Laser Enhanced Sciences - Department of Laser Application in Environmental Metrology Photochemistry and Agriculture; Issued also as CD N2 - The effects of nanoparticles (NPs) and laser radiation on biogas and methane production were investigated using a specially designed biogas production system . The different concentration of Co, Ni, Fe and Fe₃ O₄ NPs increased the biogas and methane production . The best results of NPs additives were selected based on the statistical analysis (least significant difference using M - stat) of biogas and methane production, which were 1 mg/L Co NPs, 2 mg/L Ni, 20 mg/L NPs and 20 mg/L Fe₃O₄ magnetic NPs (p{u008B}0.05) ER -