نتایج جستجو برای: biological water treatment

تعداد نتایج: 2273459  

Journal: :archives of hygiene sciences 0
zahra ahmadli department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran. mohammad fahiminia research center for environmental pollutants, qom university of medical sciences, qom, iran. reza ansari qom water and wastewater company, qom, iran. maryam savadkouhi department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran. azita anbaz department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran. akbar escandari department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran.

background & aims of the study: drinking polluted water can transmit diseases, so potable water treatment is one of the most challenging and complex systems in countries. continuous monitoring for evaluation process in water treatment plant is important. this study aims to investigate performance evaluation of qom water treatment plant to remove turbidity and coliform in 2005 - 2014. materials ...

Journal: :به نژادی گیاهان زراعی و باغی 0
یاور درگاهی دانشجوی کارشناسی ارشد اصلاح نباتات، گروه زراعت و اصلاح نباتات، دانشکدۀ علوم کشاورزی، دانشگاه محقق اردبیلی، ایران علی اصغری دانشیار رشتۀ اصلاح نباتات، گروه زراعت و اصلاح نباتات، دانشکدۀ علوم کشاورزی، دانشگاه محقق اردبیلی، ایران علی رسول زاده دانشیار رشتۀ علوم آب، گروه علوم آب، دانشکدۀ فناوری کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی، ایران خدیجه آقایی فرد دانشجوی کارشناسی ارشد زراعت، گروه زراعت و اصلاح نباتات، دانشکدۀ علوم کشاورزی، دانشگاه محقق اردبیلی، ایران مریم احمدیان کارشناس ارشد علوم گیاهی، دانشگاه تبریز، ایران

drought stress is one of the important environmental factors reducing grain yield of plants in arid and semiarid regions. study the effect of water deficit stress on yield, water use efficiency and harvest index of sesame varieties, this experiment was conducted as a split plot based on a randomized complete block design with three replications, at agriculture and natural resources research cen...

Journal: :international archives of health sciences 0
mostafaii gh.r. “social determinants of health research center” and “environment health department, public health faculty”, kashan university of medical sciences, kashan, iran miranzadeh m.b. no. 1, shabnam 4 alley, police square, kashan, iran khodadadi r. environmental health department, health faculty, kashan university of medical sciences, kashan, iran iranshahi l. environmental health department, health faculty, kashan university of medical sciences, kashan, iran alinejad a. environmental health department, health faculty, shahid beheshti university of medical sciences, tehran, iran hakimi n. environmental health department, health faculty, kashan university of medical sciences, kashan, iran

aims: regarding water as the main source of brio, not only its quantity and being availability is vital, but also its quality must be considered. this study was done in order to determine the correlation between physicochemical bod5 and microbiological parameters (fc and tc) in the kashan university of medical sciences wastewater effluent of activated sludge system.  materials & methods: this d...

Journal: :environmental health engineering and management 0
mahdi farzadkia department of environmental health engineering, iran university of medical sciences, tehran, iran mohamad hassan ehrampoush department of environmental health engineering, shahid sadoughi university of medical sciences, yazd, iran shahram sadeghi environmental health engineering, student research committee, kurdistan university of medical sciences, sanandaj, iran majid kermani department of environmental health engineering, iran university of medical sciences, tehran, iran mohammad taghi ghaneian department of environmental health engineering, shahid sadoughi university of medical sciences, yazd, iran vahid ghelmani civil engineering, manager of wastewater treatment plant in yazd, iran

background: yazd waste stabilization pond facilities consist of three stabilization pond systems, module 1, module 2 and module 3 that awsp module 1 has started its operation. the existing facilities have had several problems in their operation. the objectives of this research were to evaluate the performance of stabilization ponds in wastewater treatment of the city of yazd, due to several pro...

Journal: :E3S web of conferences 2021

Biological water filtration is a process by which toxic compounds are removed from using organisms. A well-sized biological filter extremely important as part of recirculating aquaculture system for fish farming. equipment in recycling systems technological set that restores the vital qualities wastewater ponds, thus allowing its reuse

Journal: :Japan journal of water pollution research 1985

Journal: :Japanese Journal of Water Treatment Biology 1991

Journal: Nanochemistry Research 2019

The burden of life on the earth is the source of biological contamination in water. Nanotechnology has promising contributions in control of microbial contaminations and medicinal plants further increase these properties. Presently, copper acetate and nickel oxide nanoparticles were synthesized using 1mM solution of each with Ziziphus mauritiana leaves extract as reducing agent. Nanoparticles w...

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