نتایج جستجو برای: agricultural residues
تعداد نتایج: 186167 فیلتر نتایج به سال:
Production of bioethanol from agricultural residues and hays (wheat, barley, and triticale straws, and barley, triticale, pearl millet, and sweet sorghum hays) through a series of chemical pretreatment, enzymatic hydrolysis, and fermentation processes was investigated in this study. Composition analysis suggested that the agricultural straws and hays studied contained approximately 28.62-38.58%...
Background and purpose: Extensive use of various forms of medicinal plants makes it necessary to continuously monitor the production and supply of these plants. Also, it is important to study metal and pesticide contaminants in medicinal plants in order to prevent hazards from their consumption. This study aimed at investigating the pollutants and mineral element levels in widely consumed medic...
Residues of benzoylphenylurea insecticides (diflubenzuron, hexaflumuron, and flufenuxuron), carboxamide acaricides (hexythiazox), and carbamate insecticides (benfuracarb) were determined in 150 orange fruit samples from September 1998 to June 1999, to estimate exposure of the Valencian population to oranges contaminated with these newly developed pesticides. The method for monitoring these resi...
In Thailand’s agricultural communities, a number of pesticide products have been frequently used in agricultural farms and this is raising concerns about potentially adverse effects on human health and environment in the community. The objective of this study was to investigate residential pesticide exposure in farm and non-farm families in an agricultural community in Ubonratchathani province,...
Background and purpose: Pesticides are used to control pests in agricultural crops. According to the integrity and permeability status of surface skin of strawberry, pesticides can penetrate and precipitate in the fruit. Thus, the study was performed to assess the level of Organophosphorus pesticide residues together in strawberry produced in Mazandaran province. Material and methods: In this ...
Residues of complex organochlorine and organophosphate as well as various compounds of polychlorinated biphenyls (PCBs) are reported from sediments and two species of fish ( Liza abu and Cyprinus carpio) residing in Arvand Rood River (ARR) in the Persian Gulf area. One hundred fish specimens and triplicate sediment samples taken from 15 stations 2 Km apart in an area close to the Persian Gulf w...
Finitude of fossil fuels and its environmental damage is a major challenge to the use of renewable energy sources such as biomass. The world's largest source of biomass is agricultural residues in this study, the possibility of using agricultural waste as fuel in the combustion chambers in the Ardabil province has been investigated. The agricultural residues of Ardabil province are studied and ...
Use of biomass for energy production is increasing, so management the resultant ash important. This review compares current and future production, chemical composition, reuse options from common feedstocks (agricultural residues, crops, woody biomass, forest recovered wood, paper sludge, sewage sludge municipal solid waste). Global ~170 Mt/yr, but could increase to ~1000 Mt/yr if all available ...
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