نتایج جستجو برای: modified perlite

تعداد نتایج: 251602  

2012
G. Vijayakumar R. Tamilarasan M. Dharmendirakumar

This paper presents the feasibility of removal of basic dye Rhodamine-B from aqueous solutions by using a low cost natural adsorbent perlite. Batch adsorption experiments were carried out as a function of pH, contact time, initial concentration of the adsorbate, adsorbent dosage and temperature. Dye adsorption equilibrium was rapidly attained after 50 minutes of the contact time, and it was des...

2008
Rick A. Boydston Kassim Al-Khatib

Mesotrione is an effective herbicide for volunteer potato control but is not selective in several crops, including onion and carrot. Studies were conducted in 2006 to evaluate the effectiveness of wiper-applied mesotrione for control of volunteer potato in a potato crop. Surprisingly, nontreated potatoes growing adjacent to mesotrione-treated plants exhibited bleaching symptoms resembling mesot...

Journal: :Chemical Industry and Chemical Engineering Quarterly 2016

Journal: :World Journal Of Advanced Research and Reviews 2023

Adsorptive capacities of expanded perlite, prepared on the basis natural mineral Georgia – in process aqueous solution purification from Zn (II) ions, have been first studied work. The dependencies adsorption degree and volume capacity adsorbent dosage, contact time, adsorbate concentration pH medium studied. Experiments conducted under dynamic conditions. Optimum conditions Zn(II) ion establis...

Journal: :IOP conference series 2022

Abstract In the last years, research applications in construction sector have taken a different turn due to rapid urbanization and necessity protect environment create balance between natural built environments. Taking into account fact that thermal efficiency of buildings has an important influence over environmental performances sector, civil engineering specialists tried develop use new solu...

Journal: : 2023

When controlling the length of yield site, influence ferrite grain size, amount perlite, temperature, speed and deformation scheme on localization low?carbon steel plastic deformation, which reduces ability metal to hardening, is considered.

Journal: :journal of ornamental plants 2015
a. mohammadi torkashvand t. toofighi alikhani

to study the effect of different concentrations of potassium in thenutrient solution and water stress on the quality and quantity yield of lilium la cv.termoli, a pot experiment was conducted based on completely randomized design in sand and perlite medium (50:50) in three levels of potassium (kfree, 6 mm k and and 12 mm k in hoagland solution) with three replications. in the present study, the...

Journal: :journal of ornamental plants 2015
ali mohammaditorkashvand mehdi misaghi fatemeh ramezanzadeh bisheh gahi

araucaria excelsa l. of araucariaceae family is a beautiful conifer which has a high economic importance in the flower industry. a factorial experiment based on randomized completely block design with two factors: 1. irrigation intervals in 2, 4 and 6 days (i1, i2 and i3) and 2. the growth bed in pots 3 l included m1 (100 % v/v cocopeat), m2 (100%  municipal waste compost), m3 (100 % vermicompo...

Journal: :caspian journal of chemistry 2013
seyed naser azizi abdolrauf samadi-maybodi mohammad hossein fatemi neda asemi

perlite or pearl stone is a natural glass which has formed by rapid cooling of viscous lava or magma. perlite is mainly composed of silica, aluminum, potassium and sodium. in this experiment, perlite was used as a low-cost source of si and al to synthesis of sodalite zeolite using the alkaline hydrothermal treatment. a statistical taguchi design of experiments was employed to evaluate the effec...

2010
Mehrdad Mahkam Laleh Vakhshouri

The preparation, characterization, and in vitro release of 5-aminosalicylic acid (5-ASA) from methacrylic acid (MAA)/perlite composites (APC) prepared via a sol-gel route are reported. The free-radical graft polymerization of methacrylic acid (MAA) onto perlite particles was studied experimentally. The grafting procedure consisted of surface activation with 3-(trimethoxysilyl) propyl methacryla...

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