introduction: discharging of industrial colored wastewaters especially into aqueous environments can cause adverse effects on aquatic life due to their toxic natures. in this study, montmorillonite modified by hexadecyltrimethyl ammonium bromide (hdtma-mt) was used for the adsorption of methylene blue (mb). materials and methods: the influence of surfactant loading rate, contact time, ph, adsor...

Recycling dysprosium (Dy) from an environment can not only alleviate the industrial crisis, but also reduce ecological pollution caused by Dy(III). The cost of materials used to adsorb rare earth ions is generally high, which conducive wide application adsorbents in industry. Herein, we developed inexpensive adsorbent based on a three-dimensional network structure consisting carboxylated bacter...

Fast-growing energy demands and the depletion of conventional fuel resources such as crude oil coal are among most recent issues treating world's security. Gaseous carriers methane hydrogen seem promising abundant alternative resources. However, these gasses' low volumetric density makes their storage cost extensive. High-pressure gas inside porous materials carbons is considered one way to tac...

Adsorption capacity of Cr (VI) onto cousinia eryngioides boiss, activated carbon was investigated in a batch system by considering the effects of various parameters like contact time, initial concentration, pH, temperature, agitation speed, absorbent dose and particle size. Cr (VI) removal is pH dependent and found to be maximum at pH 2.0. The amounts of Cr (VI) adsorbed increased with increase...

In this research, the application of walnut shell ash, as an adsorbent for soybean oil bleaching, has been investigated. Therefore, neutralized soybean oil was bleached with 1 and 2% of walnut shell ash as well as commercial bleaching earth. Then, a series of chemical tests such as amounts of carotenoids, chlorophylls, peroxide value, and free fatty acid content of bleached oils and oil retenti...

Copper, zinc, and cerium oxide adsorbents supported on alumina were used to remove silane gas (SiH4). The adsorbents were prepared using a coprecipitation method and characterized by the inductively coupled plasma mass spectrometry, X-ray powder diffractometer, and Brunauer-Emmett-Teller method (BET). The silane removal efficiency and adsorption capacity of the adsorbents were investigated in t...

Arvia®, a spin-out company o Manchester, UK is commercialising a water treatm the removal of low concentrations of organics technology is based on the adsorption of organics o adsorbents coupled with their electrochemical simple electrochemical cell. In this paper, the poten to adsorb microorganisms and electrochemicall present in water has been demonstrated. Bench have indicated that the proce...

The purification of plasmid DNA is hampered by the low performance of conventional chromatographic adsorbents which possess small particle pore diameters. Most of these adsorbents are tailored for the high adsorption capacity of proteins with size less < 10 nm. In columns packed with such adsorbents, large molecules such as pDNA with sizes > 100 nm adsorb predominantly at the particle outer sur...

In the present article, the suitability of activated carbon and other alternative adsorbents for wastewater treatment has been reviewed. It is evident from literature survey of last 20-25 years that researchers have gained success to some extent in developing inexpensive adsorbents for water pollution control utilizing naturally available and waste materials. However, still there is a need to f...

The high cost of commercial active carbon has motivated the study of new adsorbents materials with the aim to reduce costs of the residuary waters treatment by means of adsorption process. Among then, the pyrolyzed oil shale has demonstrated adsorbents characteristic and has been studied as adsorbent material for organic and inorganic pollutants. In oil refineries, before deciding for the impla...