نتایج جستجو برای: olive wastes activated carbon

تعداد نتایج: 515076  

Journal: :Environmental science & technology 2002
Abdelaziz Baçaoui Abderrahman Dahbi Abdelrani Yaacoubi Chakib Bennouna Francisco J Maldonado-Hódar José Rivera-Utrilla Francisco Carrasco-Marín Carlos Moreno-Castilla

A series of seven activated carbons was obtained for use in drinking water treatments by steam-activation of olive-waste cakes. This raw material is an abundant and cheap waste byproduct of oil production, making these activated carbons economically feasible. The activated carbons, prepared by the one step method, were characterized, and the evolution of their characteristics (yield, adsorption...

Journal: :World Journal Of Advanced Research and Reviews 2023

Olive mill wastes (OMWs) pose a significant environmental threat due to their high-strength organic nature, which can harm soil and water quality have adverse effects on aquatic terrestrial ecosystems. This review paper aims present an updated understanding of the microbial communities found in OMWs over past two decades, employing both culture-dependent independent approaches. Through comprehe...

2014
Ting Lee Chee-Heong Ooi Radzali Othman Fei-Yee Yeoh

From application perspectives in adsorption, activated carbon fiber (ACF) is by far one of the most important carbon nanoporous materials to be considered. It has great advantages over other commercial porous storage materials. Activated carbon fiber (ACF) is a promising microporous material with a fiber shape and well-defined porous structure. In general, production of ACF can be commercially ...

Journal: :environmental studies of persian gulf 2015
mehrorang ghaedi mohamad nickoosiar jahromi mohamad sajedi hassan mousavi

this study focus on the preparation of two supports including activated carbon derived from medlar and palladium nanoparticles loaded on activated carbon (pd-np-ac). subsequently, both adsorbent modified with a novel schiff base chelating agent and their potential applicability for determination of trace amounts of metal ions from aqueous solution has been investigated. the method is based on c...

Journal: :journal of agricultural science and technology 2015
r. rostamian m. heidarpour s. f. mousavi m. afyuni

biochar and activated carbon, as carbon-rich porous materials, have wide environmental applications. in the present research, rice husk (rh) was used for preparation of biochar at 400, 600, and 800 °c under simple pyrolysis, physically-activated carbon with water steam, chemically-activated carbon with potassium hydroxide (koh), and physiochemically-activated carbon with koh and steam. physical...

2007
S. E. Ghazy S. M. El-Morsy

Recent studies have revealed the poisonous nature of aluminum(III) species to aquatic and terrestrial organisms. Therefore, this investigation aims to develop batch adsorption experiments in the laboratory, aiming to the removal of aluminum(III) from aqueous solutions onto powdered activated carbon (PAC). The latter (which is an effective and inexpensive sorbent) was prepared from olive stones ...

2012
M. Àngels Olivella Núria Fiol Florencio de la Torre Jordi Poch Isabel Villaescusa

Two vegetable wastes, cork bark and grape stalks, were investigated for the removal of methylene blue from aqueous solution. The effects of contact time, dye concentration, pH, and temperature on sorption were studied relative to adsorption on a commercially-activated carbon. The highest adsorption yield was obtained within the pH range 5 to 10 for grape stalks and 7 to 10 for cork bark. The so...

Background and Aim: Activated carbon is a most common adsorbent. By emerging of new technologies, the activated carbon production methods need to be improved. The aim of this study was producing powdered activated carbon from Peganum Harmala seed under ultrasound waves for activation and its application for chromium removal from aqueous solutions. Materials and Methods: This experimental stu...

اعظم, کمال, تبریزی, اکرم, جعفری زاوه, مصطفی, شیرخانلو, حمید, قاسم خانی, مهدی, گلبابایی, فریده,

Introduction: Volatile organic compounds such as xylene are one of the main air pollutants. Adsorption method are of the most common methods used in the control of volatile organic compounds. The aim of this study was to investigate the xylene removal from air through nano activated carbon adsorbent in comparison with NIOSH approved carbon adsorbent.   Material and Method: Xylene adsorption...

2014
H.M.H. Gad M. M. S. Ali W. F Zaher E. A. El-Sofany S. A. Abo-El-Enein

A biomass agricultural waste material, olive stone (OS) was used for preparation of activated carbon (AC) by chemical activation using 50% phosphoric acid (PA5) carbonized at 800C and holding time 90 min (OSPA58).The prepared AC was used for sorption of La(III) ions from nitrate solution.The effect of various factors such as shaking time, pH, carbon dose, particle size and different temperature...

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