سابقه و هدف: امروزه با گسترش فعالیت واحدهای صنعتی، غلظت آلاینده­ ها در هوا افزایش یافته انسان­ از طریق تنفس، بلعیدن جذب پوستی معرض آن­ها قرار می­ گیرند. میان تمام آلاینده ­ها، فلزات سنگین به دلیل ماهیت سمی خود بسیار مورد توجه متخصصان زیست ­محیطی گرفته ­اند. بالای محیط ­زیست، می ­تواند خطر اثرات نامطلوب بر سلامتی انسان را دهد. شهرک صنعتی ناجی زنجان ریخته ­گری مس آلیاژهای آن، ­عنوان یکی منابع انت...

Pressure swing adsorption systems have been devised to concentrate argon from a binary gas mixture of oxygen and (O2:Ar = 95:5 mol%) that an industrial generation vacuum (VSA) unit produces air. The kinetically-driven processes investigated in this study contain self-purging step up two double-ended pressure equalization steps. Three cycle configurations, each which has one, three beds, were si...

To study the extent of removal of Cu(II) ions from the electroplating industrial effluent, metal resistant fungal strain of Penicillium janthinellum was selected for the present study. Response surface methodology was used to optimize the sorption process variables i.e. temperature (20-40 oC), biomass concentration (0.5-2.5 mg/l), pH (2.0-6.0) and initial concentration of metal ions (20-100 mg/...

A study of the peculiarities change in concentration toluene atmospheric air city, where sources substance are both vehicles and an industrial enterprise for production synthetic rubber, has been carried out. The paper analyzes behavior methylbenzene different periods: with small large volumes emissions. intake described. diagram emission source built. periods, characterized by load on hygienic...