نتایج جستجو برای: freundlich model

تعداد نتایج: 2105418  

Journal: :Journal of environmental chemical engineering 2023

Peat water source could be utilized to mitigate scarcity issues that are experienced by the local communities in Sarawak rural areas. However, this needs treated prior domestic consumption due levels of humic substances being incomparable Malaysia quality standards. As such, study aims formulate kinetic models for peat treatment with continuous electrocoagulation system using aluminium electrod...

Journal: :international journal of environmental research 0
e. kalipci department of environmental engineering, nevsehir hacı bektas veli university, 50300 nevsehir, turkey. s. sahinkaya department of environmental engineering, nevsehir hacı bektas veli university, 50300 nevsehir, turkey. m. dortkol department of environmental engineering, nevsehir hacı bektas veli university, 50300, nevsehir, turkey s. aras department of environmental engineering, nevsehir hacı bektas veli university, 50300, nevsehir, turkey

in this study, removal of methylene blue (mb) and maxilon blue sl 200% (mb sl) dyes from aqueous solutions by using raw clay (rc) of nevsehir (turkey) vicinity and ultrasonic-acid modified clay (mc) was investigated. adsorption was carried out with 500 mg/l mb and 50 mg/l for mb sl in terms of different adsorbent dosages, contact time, solution ph, temperature and stirring speed. the fitting of...

Journal: :environmental health engineering and management 0
ali asghar najafpoor health sciences research center, department of environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran sina dousti environmental health engineering, student research committee, school of health, mashhad university of medical science, mashhad, iran ahmad joneidi jafari environmental health engineering, department of environmental health engineering, center for environmental health technology, school of health, iran university of medical sciences, tehran, iran ahmad hosseinzadeh environmental health engineering, student research committee, department of environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran

background: phenol is an organic pollutant found in industrial effluents that is very toxic to humans and the environment. this study used pomegranate peel ash as a natural absorbent to remove phenol from aqueous solutions. methods: in this study, pomegranate peel ash in different doses was used as a new adsorbent for the removal of phenol. the effects of contact time, ph, adsorbent dose and in...

Journal: :Pest management science 2004
Qingli Ma R Don Wauchope Kenneth W Rojas Lajpat R Ahuja Liwang Ma Robert W Malone

The Root Zone Water Quality Model (RZWQM) is a one-dimensional, numerical model for simulating water movement and chemical transport under a variety of management and weather scenarios at the field scale. The pesticide module of RZWQM includes detailed algorithms that describe the complex interactions between pesticides and the environment. We have simulated a range of situations with RZWQM, in...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2009
saeed mohammad beigi aziz babapoor vida maghsoodi sayyed mohammad mousavi narges rajabi

in this study chitosan hydrogel beads with porosity ~ 0.86 and diameter ~ 20.07 mm were prepared from 85 % deacetylated chitosan for removal of cd2+ ions from aqueous solutions.  chitosan powder was dissolved into dilute acetic acid as solvent and formed into spherical beads using a phase inversion technique. the effect of temperature, initial concentration of cd2+ ions, and the period of agita...

Mahboobeh Manoochehri Roghayeh Madadi Hamzeh Khanlou Seyedeh Aseman Lajevardi

In our study a new Fe-modified nano porous of MCM-41 was synthezied hydrothermally with cetyltrimethylammoniumbromide (C16TAB) as surfactant and charactrizied using XRD, SEM, FT-IR and BET. This work reports the adsorption of Neodymium from aqueous solution onto Fe-MCM-41.100 ml of stock solution of Neodymium was prepared.Various factors such as pH,the amount of adsorbent were considered. T...

Journal: :journal of agricultural science and technology 2010
a. reyhanitabar m. ardalan r. j. gilkes g. savaghebi

this study was carried out to obtain quantitative relationships between zn in equilibrium solution and that retained by 20 calcareous soils. soils were brought into equilibrium with varying solution concentrations of zn, and the amounts removed from solution were used to check the fit to six adsorption isotherms, namely, freundlich, langmuir, temkin, gunary, two surface langmuir and adjusted fr...

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