نتایج جستجو برای: refining of wastewater

تعداد نتایج: 21168951  

2012
Amir Samimi

Erosion is one of the important unlikely problems in oil refining industry that produces many damages and values to refining parts. In other part stop of refining operation for repairing is very expensive. Many erosions are happened in refining operations when equipments are placed to atmosphere, Powerful acids, eruption gases, hydrocarbon vampires and high temperature make very complex situati...

Journal: :Catalysts 2021

The petroleum industry is one of the most rapidly developing industries and projected to grow faster in coming years. recent environmental activities global requirements for cleaner methods are pushing refining use green techniques industrial wastewater treatment. Petroleum contains a broad diversity contaminants such as hydrocarbons, oil grease, phenol, ammonia, sulfides, other organic composi...

The aim of this research is to get a better understanding of the electrolytic refining process in order to yield the anode slime. Three types of secondary copper anodes are electro refined in an electrolytic system, where the electrolyte is an acid of copper sulphate solution. As a result of the electro-refining process the anode slime has been gained as secondary product. The experimental ...

C. P Tan, A Christianus , F Ehteshami , S Shabanikakroodi , Y. B Che Man,

In this study, oil was extracted from the liver and visceral fat of Patin (Pangasianodon hypophthalmus) and refined. The yield of oil after refining was 49.98%. The major yield loss (34.20%) happened during the degumming procedure. Fatty acids found in the crude and refined oil were C12:0, C14:0, C14:1, C16:0, C16:1, C18:0, C18:1, C18:2, C18:3, C18:4, C20:0, C20:1, C20:4, C20:5, and C22:6. The ...

Abstract        It’s necessary to analyze the contexts and the reasons of fair wage occurrence, which itself entail the critique of marginal revenue productivity theory of wage; In addition, it’s crucial to describe the role of fair wage in refining the productivity and organizing the labor relations. In this vein, the present article, through analytical, descriptive and content analysis method...

Journal: :Journal of the Fuel Society of Japan 1988

Journal: :محیط شناسی 0
سعید طاهری قناد استادیار گروه مهندسی آب دانشگاه آزاد اسلامی واحد دزفول علی افروس استادیار گروه مهندسی آب دانشگاه آزاد اسلامی واحد دزفول

introductionwater pollution by heavy metals is a worldwide environmental problem due to the increasing exploitation of mining activities, industrialization and urbanization has increased around the globe. lead is the most important environmental pollutants that contaminate soil and water resources from different ways. this element is including the most toxic heavy metals in the united states en...

Journal: :Environmental Health Perspectives 1974
Ivan C. Smith Bonnie L. Carson Thomas L. Ferguson

In the U.S., the chief source of new osmium is copper refining, where this metal is produced as a byproduct. Probably less than 10% of the osmium in the original copper ore is recovered, and 1000-3000 oz troy of osmium is lost each year to the environment as the toxic, volatile tetroxide from copper smelters. In 1971, about 2000 oz troy of osmium was domestically refined, most of which was from...

Journal: :The Canadian Journal of Hospital Pharmacy 2014

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید