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228 results for “biomass”
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Research ArticleOpen accessIn the keywordsAssessing Soil Biological Properties of Natural and Planted Forests in the Malaysian Tropical Lowland Dipterocarp ForestDaljit Singh Karam, Arifin Abdu, O. Radziah et al.Problem statement: A study was conducted to evaluate and compare the soil biological properties of a natural forest and an 18-year-old stand of Shorea leprosula in Chikus Forest Reserve, Perak, Malaysia. Approach: Soils were sampled at depths of 0-15 cm (topsoil) and 15-30 cm (subsoil) in six subplots (20×20 m) of natural forest (C1) and of a planted S. leprosula … …American Journal of Applied Sciences, Vol. 8, Issue 9 · 29 Jul 2011 · 7,965 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCharacteristic Study of the Marine Algae Sargassum sp. on Metal AdsorptionA. Saravanan, V. Brindha, Soundarajan KrishnanProblem statement: Biomass of brown marine macro algae is a biological resource that is available in large quantities and can form a good base for the development of biosorbent material. Approach: Algae have been found to be potentially suitable biosorbents because of its cheap availability, both in fresh or salt water, relatively high surface area and high binding affinity. Results: … …American Journal of Applied Sciences, Vol. 8, Issue 7 · 24 Jun 2011 · 7,666 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAssessing Forest Plantation Productivity of Exotic and Indigenous Species on Degraded Secondary ForestsYetti Heryati, Arifin Abdu, Mohd Noor Mahat et al.Problem Statement: There is general agreement that human activities such as deforestation and land use change to other land use types have contributed to degraded secondary forests or forestland and increases the emission of greenhouse gases which ultimately led to global climate change. An establishment of forest plantation in particular is regarded as an important approach for sequestering carbon. However, … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 2 · 6 Jun 2011 · 10,520 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPalm Oil Milling Wastes and Sustainable DevelopmentA.C. Er, Abd. Rahim Md. Nor, Katiman RostamProblem statement: Palm oil milling generates solid wastes, effluent and gaseous emissions. The aim of this study is to assess the progress made in waste management by the Malaysian palm oil milling sector towards the path of sustainable development. Sustainable development is defined as the utilization of renewable resources in harmony with ecological systems. Inclusive in this definition is the … …American Journal of Applied Sciences, Vol. 8, Issue 5 · 17 May 2011 · 7,697 accessesView PDFCite
Research ArticleOpen accessIn the keywordsGlomalin Production and Microbial Activity in Soils Impacted by Gypsum Mining in a Brazilian Semiarid AreaAdalia Cavalcanti do Espírito Santo Mergulhao, Helio Almeida Burity, Fabio Sérgio Barbosa da Silva et al.Problem statement: Mining activities involve the removal of the vegetal cover and the soil organic layer, causing a severe environmental impact. In Northeast Brazil, 40% of the world’s crude gypsum is found in a semiarid area, making this region responsible for 95% of the gypsum demand in the national market. Although economically important, this activity is harmful to the environment. … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 4 · 11 Nov 2010 · 9,028 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMinimum and Complete Fluidization Velocity for Sand-Palm Shell Mixtures, Part I: Fluidization Behavior and Characteristic VelocitiesV. S. Chok, A. Gorin, H. B. ChuaProblem statement: Palm shell on its original state cannot be fluidized solely. However, mixing palm shell with a second fluidizable material can facilitate proper fluidization. Approach: The minimum and complete fluidization velocity (Umf and Ucf) for sand/palm shell binary mixtures had been studied in a partitioned reactor known as Compartmented Fluidized Bed Gasifier (CFBG). The pilot scale reactor ID is … …American Journal of Applied Sciences, Vol. 7, Issue 6 · 30 Jun 2010 · 7,221 accessesView PDFCite
Research ArticleOpen accessIn the keywordsUpgrading of Bio-Oil into High-Value Hydrocarbons via HydrodeoxygenationMurni M. Ahmad, M. Fitrir R. Nordin, M. Tazli AzizanProblem statement: World energy consumption is forecasted to grow significantly for the foreseeable future with fossil fuel remains the governing energy source. The demand in the need to explore alternative fuel source was further triggered by the overwhelmingly inconsistent cost of gasoline. Bio-oil is an alternative energy source produced from pyrolysis of biomass. However it is undesirable as a ready … …American Journal of Applied Sciences, Vol. 7, Issue 6 · 30 Jun 2010 · 8,825 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCharacterization of Bio-Oil: A By-Product from Slow Pyrolysis of Oil Palm Empty Fruit BunchesK. H. Khor, K. O. Lim, Z. A. ZainalProblem statement: Oil palm Empty Fruit Bunches (EFB) are abundant biomass in Malaysia. Studies about production of biofuels using slow pyrolysis of EFB are still lacking. So, this study was aimed to understand the physical and chemical properties of the bio-oil and its simple blends. Approach: EFB was slow pyrolysed with internal heating at terminal temperature of 600°C in a … …American Journal of Applied Sciences, Vol. 6, Issue 9 · 30 Sep 2009 · 8,024 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOptimizing of Trichoderma viride Cultivation in Submerged State FermentationHayyan Ismaeil Al-Taweil, Mohammad Bin Osman, Aidil Abdul Hamid, Wan Mohtar Wan YussofProblems statement: A study in Malaysia had shown a strain of Trichoderma viride was isolated from the soil. Questions were raised whether Trichoderma viride submerged state fermentation affected by parameters and which of them is effective? Approach: To investigate the effects of the submerged state fermentation parameters; concentrations of carbon g L-1; (10, 45 and 80), glucose, nitrogen g L-1; … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 10,086 accessesView PDFCite
Research ArticleOpen accessIn the keywordsUtilization of Soft Wood Wastes as a Feed Stock to Produce Fuel EthanolAdnan M. Khalil, Ali F. Al-Shawabkeh, Ayman S. Mazahreh et al.Problem statement: The current research investigated the utilization of soft wood waste as a feedstock to produce a value-added product-fuel ethanol. Approach: The main issue in converting soft wood waste to fuel ethanol is the accessibility of the polysaccharides for breaking down into monosaccharides. This study focused on the use of steam as the pretreatment method. The governing factors for … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 7,632 accessesView PDFCite