نتایج جستجو برای: organic system
تعداد نتایج: 2407474 فیلتر نتایج به سال:
Farming systems based on high input energy materials (fossil materials), such as chemical fertilizers and pesticides, can damage soil properties will ultimately reduce productivity in the future. Alternative agricultural using low (LEE) are believed to be able maintain fertility environmental sustainability while at same time maintaining or increasing productivity. Organic farming prioritize us...
Background and Objectives: Advanced Sequencing batch reactors (SBR) are one of the most suitable modified activated sludge systems. Due to low cost, optimal efficiency, and easy operation, they are recognized as an effective biological treatment system. The purpose of this study was to determine the performance of the SBR biological process in the removal of organic matter and nutrients from Ya...
Direct evidence for the electronic band structure of thin organized organic layers is presented. The experimental results indicate that the electron-organic film system has to be described in quantum mechanical terms and that classical concepts fail. Quantum mechanical simulations on a generic system are also presented. They indicate that this type of simulation provides insight into the system...
Background and Objectives: One of the complete treatment processes for industrial and municipal wastewater treatment is membrane bioreactor process which has dominant potential in process and operation sections. This study was conducted to compare the performance of extended aeration activated sludge (EAAS) with submerged membrane bioreactor (SMBR) systems in the treatment of strength wastewate...
this paper considers the potential problems that may militate against the adoption of organic poultry production in nigeria. factors identified include: higher risk of diseases like coccidiosis and newcastle disease, disease prevention and control / herd health management, disease containment in times of outbreak, land acquisition (land tenure system), market economies / cost-benefit ratio, pas...
selective desulfurization of thiocarbonyls to carbonyls thioacetalization of aldehydes and ketones a useful reagent system for the dethioacetalization reactions
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