نتایج جستجو برای: industrial water treatment

تعداد نتایج: 2022291  

2015
Tamar Chachibaia Manuel Martin Pastor

The presence of human pharmaceutical compounds in surface waters is an emerging issue in environmental science. Low levels of many active pharmaceutical ingredients are detected in the aquatic environment as a result of pharmaco-chemical industrial waste spill-offs in draining water. In the manufacturing of pharmaceutical drug substances azides are used as reagents or when they are generated so...

Journal: :تحقیقات نظام سلامت 0
حسین فرخ زاده کارشناس ارشد مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. حسن هاشمی دانشجوی دکتری مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان ،اصفهان، ایران. مهدی حاجیان نژاد دانشیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران.

background: ocsillator system is recognized by many water plant treatment designers for having many advantages, such as combination of mixing processes, flocculation and sedimentation processes in the same unit, the possibility of softening and lucidity simultaneously, and relatively acceptable efficiency. despite using this process in number of the regions in the country, enough researches hav...

جعفرزاده حقیقی فرد, نعمت‌اله , دیناروند, مهری , پرنیان, امیر , چرم, مصطفی ,

Abstract With increasing of population, water resources’ pollution has been intensified and new and inexpensive methods are needed for remediation and improvement of water quality. Nickel is a necessary element in low concentrations for survival of the ecosystems, but in high concentrations is harmful and considered as a dangerous pollutant. This element pollutes water resources through differ...

Journal: Pollution 2017

Djendjen River is one of the largest rivers in the region of Jijel (Algeria). Human activities such as urban discharges, industrial, agricultural, and livestock have significant effects on the quality of water. The present study attempts to evaluate the quality of water along the banks of the Djendjen River at different sampling sites, using physico-chemical and bacteriological methods. The col...

Journal: :Journal of environmental management 2014
Farhana Tisa Abdul Aziz Abdul Raman Wan Mohd Ashri Wan Daud

Treatment of industrial waste water (e.g. textile waste water, phenol waste water, pharmaceutical etc) faces limitation in conventional treatment procedures. Advanced oxidation processes (AOPs) do not suffer from the limits of conventional treatment processes and consequently degrade toxic pollutants more efficiently. Complexity is faced in eradicating the restrictions of AOPs such as sludge fo...

Journal: :Environmental science and pollution research international 2011
Michiel A Daam Maria José Cerejeira Paul J Van den Brink Theo C M Brock

Higher tier studies to assess the environmental risks of pesticides have been performed mainly in Atlantic Central Europe and North America and results of such studies have been extrapolated to other climatic regions such as South Europe (Ramos et al. 2000; López-Mancisidor et al. 2008a). Since climate (e.g., sun hours, rainfall, temperature), agroecosystems (e.g., crop rotation, field size), a...

2004
Patrick Niquette Frédéric Monette Abdelkrim Azzouz Robert Hausler

Aluminum-based coagulants in drinking water treatment are widely used across Canada. According to the literature, the presence of aluminum in drinking water poses possible risks to humans. Preliminary studies investigating the use of alternative coagulating agents such as iron-based coagulants, lanthanide salts and organic coagulants have already revealed that their implementation is possible, ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید