The stable of natural diatomite supported by potassium hydroxide (KOH) as catalysts were synthesized for biodiesel production. A heterogeneous base catalyst prepared impregnating KOH onto was also used to synthesize from palm oil. All samples have been thoroughly characterized Wavelength Dispersive X-ray Fluorescence (WDXRF), diffraction (XRD), N2 adsorption/desorption, Scanning electron micros...

Polystrate fossils are one of numerous evidences for the rapid deposition of strata, as opposed to the uniformitarian belief in slow deposition over millions of years. They are briefly described from the Joggins Formation, Nova Scotia; Yellowstone National Park, Montana and Wyoming; Ginkgo Petrified Forest State Park, Washington; the Geodetic Hills of Axel Heiberg Island; the Lompoc diatomite, ...

Jalil IMANI HARSINI*, Hamid-Reza REZAEI, Saeid NADERI, Hosein VARASTEH MORADI Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran Department of Fisheries and Environmental Science, Faculty of Environmental Science, Gorgan University of Agricultural Sciences & Natural Resources, Gorgan, Iran Department of Environmental Science, Faculty of Natu...

Given the need for decent housing and taking into consideration environment, as well search sustainable materials, in recent years researchers have begun to focus on local biodegradable ecological materials. It should be noted that use of building materials evolves step with population growth. However, their production must a clear positive impact environment offer viable solutions reducing ene...

The catalytic oxidation of toluene over copper oxide supported on natural diatomite was investigated. The catalyst was prepared by the wet impregnation method and characterized by using the Brunauer Emmett Teller (BET), field emission Scanning Electron Microscopy (FESEM), X-ray diffraction (XRD), X-ray fluorescence (XRF) and Temperature-programmed reduction (TPR) analysis. The highest catalytic ...

Optimized forest degradation model (OFDM): an environmental decision support system for environmental impact assessment using an artificial neural network Ali Jahani, Jahangir Feghhi, Majid F. Makhdoum & Mahmoud Omid a Environment and Natural Resources Sciences Department, University of Environment, Karaj, Iran b Department of Forestry and Forest Economic, Faculty of Natural Resources, Universi...