نتایج جستجو برای: heavy industry
تعداد نتایج: 314467 فیلتر نتایج به سال:
Backgrounds & objectives: Contamination of the environment by heavy metals, pollute water and agricultural products. The aggregation of these metals will cause various diseases for human. Therefore, it is important to study how to make them safe. The purpose of this study is to evaluate the efficiency of starch-iron oxide nanocomposite in removing two heavy metals, nickel and cadmium, from wast...
The resistance of Listeria monocytogenes to cadmium and arsenic has been used extensively for strain subtyping. However, limited information is available on the prevalence of such resistance among isolates from the environment of food-processing plants. In addition, it is not known whether the resistance of such isolates to heavy metals may correlate with resistance to quaternary ammonium compo...
Background and Objectives: In the production of some high-consumed food products like cake, biscuit, chocolate and spaghetti water is used in the preparing of primary material and in the kneading processes. At the present study microbiological and chemical quality of consumed water in food industries of East Azerbaijan Province were studied.Materials and Methods: Eleven factories with different...
In the I.T. industry, which was confronted to a major transition phase during the 90’s, partnerships became a strategic component of the new “divided technical leadership” which emerged from the industry vertical disintegration. This paper attempts to evaluate the impact of 1676 partnerships on the financial performance (revenue and profit) and innovative efforts (R&D intensity) of 14 large fir...
The concept of a “localization policy” (local content) is a tool often used to support industrial growth with the domestic market. The localization policy has supported the heavy electro-mechanical industry in Taiwan for years, with bolstered research and development (R&D) and technological transfer approaches. The industry now can develop products to compete with international brands. The entr...
Heavy metals (HMs) in soil are some of the most serious pollutants due to their toxicity and nonbiodegradability. Especially across large-scale areas affected by industry, complexity pollution sources has attracted extensive attention. In this study, an approach based on zoning analyze heavy was proposed. Qualitative identification quantification contributions key approaches prevention control ...
electroplating industry wastewater (eiw) characterized by high chemical oxygen demand (cod) is a big source of water and air contamination with heavy metals. the formation of cyanide complex with heavy metals is responsible for its elevated cod. the concentration of heavy metals in eiw can be removed by the use of different precipitating agents (sulfide and hydroxide). but the major bottleneck ...
Background: Lead is one of the most toxic heavy metal which its toxicity and poisoning symptoms in workers of different industries (such as battery industry due to heavy use) is completely known. Important effects of this toxic metal are paralyzed wrist (nerve effects) as well as bone disease. The scope of this study is to evaluate the occupational exposure of workers of a battery industry to t...
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