In this study, neem biomass (a mixture of leaf and bark), obtained from the matured tree, which is an eco-friendly low-cost material was selected as a bioadsorbent to remove lead metal ion (Pb2+) aqueous solutions. Neem biomass-based having carboxylic group prepared by activation using chemical modification NaOH citric acid with very simple method. The optimal conditions were determined 37 min,...

background and purpose: azo dyes including direct blue 71 (db71) are toxic, mutagenic and carcinogenic contaminants in effluents of industries. this study aimed to investigate the adsorption of db71 from aqueous solution onto pistachio hull waste (phw) as a low-cost adsorbent. materials and methods: a series of experiments were performed via batch adsorption technique to examine the effect of t...

Kombucha Scoby is a colony consisted from bacteria, yeast and cellulosic pellicle that present fantastic performances in various fields. Besides anti-toxicity and antimicrobial specifications of Kombucha scoby, this unique colony can be used for waste water treatment and removal of heavy metals. Herein, efficiency of graphene oxide/Fe3O4 nanoparticles (GO/Fe3O4) and Kombucha Scoby in the remova...

abstract phosphate is an essential element for plants, animals, and human. mobility and availability of phosphate in the natural systems is controlled by the adsorption-desorption and dissolution-precipitation reactions. iron (hydr)oxides including goethite play an important role in phosphate adsorption reactions in soil. surface area, crystallinity, and morphology of iron (hydr)oxides are the ...

Background & objective: The presence of natural organic matter in water sources creates various problems, especially in common water treatment process. These compounds cause unfavorable taste and odor in water and are among the most important precursors of water disinfection by-products. This study was carried out to evaluate the efficiency of activated carbon (AC) and activated carbon modified...

Application of Pistacia atlantica Leaves Powder as Natural Material To Remove Nitrate and Phosphate Ions From Domestic Wastewater by Characterization, Bio-removal, Phytotoxicity StudiesObaida Alhajali1* , Adnan Ali-Nizam1 Rasha Almostafa2 1Damascus University, Department Plant Biology, Damascus, Syria.2International University for Science Technology, General Analytical Chemistry, Syria. Abstrac...

Textile industries are considered to be the main actors in water pollution. Estimation of textile dye sorption capacities biosorbents/adsorbents crucial as design considerations. Herein, feasibility utilizing orange-peel-derived graphene-like porous carbons (GCs) a low-cost biosorbent for removal Crystal Violet (CV) cationic from aqueous solution have been evaluated both by batch biosorption ex...