The study aim was to test the applicability of exoskeletons and molts from mealworm (Tenebrio molitor) cultures as sorbents for anionic dyes: Reactive Black 5 (RB5) Yellow (RY84). Factors investigated included: characteristics (FTIR, pHPZC), influence pH on sorption efficiency, kinetics (pseudo-first, pseudo-second-order, intraparticle diffusion models), determination maximum capacity (Langmuir...

The efficiency of a new composite material the layered double hydroxide (LDH) ZnMgAl and rice husk biochar (RHB) for removal Cu(II) Pb(II) ions from synthetic wastewater was investigated in this study. images scanning electron microscope showed extremely fine crystalline LDH particles decorated on rough surface RHB, while successful formation adsorbent (LDH/RHB) confirmed by corresponding energ...

Neste estudo, a biossorção do corante Rodamina B (RhB) de solução aquosa usando mesocarpo coco babaçu (BCM) foi avaliada em batelada e operação contínua. As influências pH, tempo contato, concentração biossorvente, temperatura foram investigadas estudos batelada. Taxas mais altas remoção RhB (79,3 ± 0,49 %) obtidas pH 2.0. Os cinéticos equilíbrio indicaram que segue o modelo pseudossegunda orde...

This study deals with the removal of single and binary heavy metals, which cause great problems in terms environment human health, through very low cost, economical easily obtainable materials. The purpose this is to investigate single- uptake Copper (II) Nickel ions onto Sepiolite a thermodynamic perspective. For mono-component systems, initial effluent concentration, mixing speed temperature ...

In this study, activated carbons derived from walnut shells (CA-N) and apple wood (CA-M) were used as adsorbents to remove cobalt(II) strontium(II) ions aqueous solutions. The novel materials obtained using nitric acid (CA-Mox) acid/urea mixture (CA-Mox-u, CA-Nox-u) oxidizing agents. physical–chemical characteristics of determined nitrogen sorption isotherms, SEM-EDX, FTIR, pH metric titrations...

The present project is designed to investigate the potential of hoshanar and sunny grey marble wastes remove direct violet 51 dye from wastewater using adsorption process. effect different parameters such as pH, adsorbent dose, initial concentration, contact time were studied optimize results Different isothermic models (Temkin, Langmuir isotherm, Freundlich Harkin Jura, Dubinin-Radushkevich mo...

The heat accumulated in the inner parts of earth's crust is transmitted to fluid geothermal aquifer by means transportation. transported surface either wells or naturally. In this study, Tuzla field Çanakkale city was examined due its high boron content (10.3 mg L-1). It aimed remove from adsorption order prevent possible negative effects on environment. Fly ash obtained Çan thermal power plant...

In this study, lignin was isolated from rice (Oryza sativa L.) husk using alkaline extraction method and used as an adsorbent for aqueous solutions of methyl orange (MO) bromothymol blue (BTB). The equilibrium removal rate MO found to be at 61.4%, with experimental adsorbate uptake, qe, 1.23 mg·g-1, achieved 150 minutes contact time. For BTB, the 78.3%, qe 1.57 Pseudo-first order (PFO) pseudo-s...

background dyes are one of the most important industrial pollutants, especially in textile industries. many methods have been proposed in order to remove color from wastewater among which, adsorption is more acceptable due to the ability for its use in the large scale. objectives the objective of this study was to investigate pumice as an inexpensive adsorbent for removal of methylene blue from...

Abstract Nanostructured bio-adsorbents were prepared by physical or chemical activation of the residue supercritical extraction raspberry seed. Their physicochemical properties determined elemental analysis, low-temperature nitrogen adsorption/desorption, Boehm titration and scanning electron microscopy. The biocarbon obtained as a result precursor showed basic character surface its S BET was 7...