Results 21 to 30 of about 3,743,850 (257)
Mass transfer coefficient of ammonia in the air stripping process for municipal wastewater: An experimental study [PDF]
Advances in Environmental Technology, 2021 This study evaluated the effects of different operating conditions and the air-to-water ratio (G/L) on the kinetics and the mass transfer coefficient of ammonia (KL) in the air stripping method for removing ammonium ions (NH4+) from wastewater with low ...
Arezoo Zangeneh +4 more
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Removal of Sulfate Ions by Precipitation and Flotation
Ingeniería e Investigación, 2021 The removal of sulfate ions from natural waters, as well as from industrial effluents of different origins, is a problem, considering that most of the proposed processes are inefficient and have a high cost, mainly when reducing the sulfate ion ...
Mario Santander +2 more
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CFD SIMULATION OF AIR ION REGIME IN WORK AREAS AT CONDITION OF ARTIFICIAL AIR IONIZATION
Nauka ta progres transportu, 2016 Purpose. The paper supposes creation of a CFD model for calculating the air ion regime in the premises and in work areas at artificial ionization of the air by the ionizer installation indoors with considering the most important physical factors that ...
M. M. Biliaiev, S. G. Tsygankova
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Removal of Copper Ions From Wastewater By Multi Stage Flotation [PDF]
Engineering and Technology Journal, 2010 Removal of heavy metals from wastewater is of primary importancebecause they are not only causing contamination of water bodies but are also toxic to many life forms.
Neran K. Ibrahim +2 more
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Ion balance detection using nano field-effect transistor with an extended gate electrode
Micro and Nano Systems Letters, 2020 We developed a nano field-effect transistor (nanoFET) sensor for detecting ions in the air. Air ions can be measured using a commercial ion counter; however, it is large and expensive equipment, requires airflow to be through a cylinder type electrode or
Hye-Lim Kang +5 more
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AtmosphereRadon’s radioactive decay is the main natural source of small air ions near the ground. Its exhalation from soil is affected by meteorological factors, while aerosol pollution reduces air ion concentrations through ion-particle attachment.
Fathya Shabek +4 more
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Bactericidal action of positive and negative ions in air
BMC Microbiology, 2007 Background In recent years there has been renewed interest in the use of air ionisers to control of the spread of airborne infection. One characteristic of air ions which has been widely reported is their apparent biocidal action.
Sleigh P Andrew +6 more
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DETERMINATION OF COLLECTION EFFICIENCY OF ATMOSPHERIC IONS BY THE SYSTEMS OF PARALLEL CONDUCTIVE PLATES [PDF]
Aerul şi Apa: Componente ale Mediului, 2013 We present a theory that describes the scenarios of equations of motion of clustered air ions entering into specific systems. The system analyzed here is composed by two or three conductive parallel plates.
Floran Vila, Florian Mandija
doaj
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
HYBRID KITOSAN/BENTONIT SEBAGAI MATRIKS UNTUK PELEPASAN ION AMONIUM DALAM AIR
Jurnal Kimia Riset, 2016 Abstrak Hybrid kitosan/bentonit dalam bentuk bead telah berhasil dibuat dengan berbagai rasio komposisi kitosan dan bentonit. Dalam penelitian ini, bead dari hybrid ini digunakan sebagai matriks untuk ion amonium. Bead dibuat dengan pengendapan suspensi
Bambang Piluarto +2 more
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