نتایج جستجو برای: nano zero valent copper

تعداد نتایج: 283483  

Journal: :Bioresources 2021

Water treatment using nano-materials can have a significant impact due to its surface properties. Coagulation techniques were studied by 3 mL/L of 0.5% different coagulants (polyacrylamide, poly aluminum chloride (PAC), ferric chloride, sulfate, and nanocellulose). Results indicated that the turbidity removal efficiency 91.6%, 93.04%, 95.2%, 95.4%, 99.4%, respectively. Treatment water samples c...

Journal: :international journal of environmental research 2011
s. shafieiyoun t. ebadi m. nikazar

leachate treatment from municipal landfills has been always a major anxiety in waste management due to its high level of various contaminations. in this paper the effect of nanosized zero valent iron particles (nzvi) in fenton process for the treatment of high cod strength landfill leachate was scrutinized. the results corroborated this procedure was fast and efficient. in fact, about 87% of in...

Journal: :health scope 0
mohammad ali zazouli health sciences research center, department of environmental health engineering, faculty of health, mazandaran university of medical sciences, sari, ir iran ramazan ali dianati tilaki health sciences research center, department of environmental health engineering, faculty of health, mazandaran university of medical sciences, sari, ir iran marjan safarpour student research committee, faculty of health, mazandaran university of medical sciences, sari, ir iran; student research committee, faculty of health, mazandaran university of medical sciences, sari, ir iran. tel: +98-2314481905

background contamination of water resources with nitrate is a serious environmental problem in many regions of the world. in addition, this problem has been observed in some regions of iran. as nitrate is threatening for human health and environment, it must be decreased to standard levels in drinking water. objectives the purpose of this research was to model the nitrate removal from water by ...

رحمانی, آیت, رحمانی, حسن, رحمانی, کوروش, زارع, محمد رضا,

زمینه و هدف: حضور باقیمانده آنتی بیوتیک ها در محیط زیست امروزه به عنوان یکی از نگرانی های جهانی مطرح شده است و لزوم کنترل تخلیه آنها نیز بعنوان امری اجتناب ناپذیر مطرح شده است. این تحقیق، با هدف بررسی کارایی فرآیند تلفیقی شبه فنتون (UV/H2O2/nZVI) جهت تجزیه آنتی بیوتیک تتراسایکلین از محیط های آبی صورت گرفت. مواد و روشها: این تحقیق یک مطالعه تجربی بود که در مقیاس آزمایشگاهی و در دمای محیط انجام ...

2015

Bacterial and viral contamination of touch surfaces allows for transmission of pathogens leading to increased risk of infection. Previous work has demonstrated the antimicrobial properties of copper for contact-killing of microbes for use in hospitals. Less research exists on copper as an antiviral surface and on the effects of nanomaterial copper surfaces in the contact-killing of viruses. Nan...

A new method for the synthesis of nano zero-valent iron (nZVI) was developed in the present study. Ultrasonic waves, as a novel method, were used to synthesize the nanoparticles. The morphology and surface compositions of the particles were characterized by using FESEM, XRD, BET, and particle size analyzer. The synthesized nanoparticles were then utilized as a Fenton-like catalyst to degrade of...

2016
Charlotta Tiberg

Phosphorus affects the sorption of many metals and arsenate to iron (hydr)oxides. This may influence the mobility and bioavailability of metals and arsenate in soil and water. Phosphorus therefore plays an important role in, e.g., determining the ecotoxicological risk of contaminants in soils. The overall aim of this thesis was to improve the understanding of lead(II), copper(II), cadmium(II) a...

Journal: :iranian journal of oil & gas science and technology 2012
mir roozbeh jamei mohammadreza khosravi bagher anvaripour

a new method for the synthesis of nano zero-valent iron (nzvi) was developed in the present study.ultrasonic waves, as a novel method, were used to synthesize the nanoparticles. the morphologyand surface compositions of the particles were characterized by using fesem, xrd, bet, andparticle size analyzer. the synthesized nanoparticles were then utilized as a fenton-like catalyst todegrade of hyd...

Journal: :international journal of environmental research 0
s. shafieiyoun civil and environmental engineering department, amirkabir university of technology (aut), hafez st., tehran, 15875-4413, iran t. ebadi civil and environmental engineering department, amirkabir university of technology (aut), hafez st., tehran, 15875-4413, iran m. nikazar chemical engineering department, amirkabir university of technology (aut), hafez st., tehran, 15875-4413, iran

leachate treatment from municipal landfills has been always a major anxiety in waste management due to its high level of various contaminations. in this paper the effect of nanosized zero valent iron particles (nzvi) in fenton process for the treatment of high cod strength landfill leachate was scrutinized. the results corroborated this procedure was fast and efficient. in fact, about 87% of in...

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