Results 21 to 30 of about 42,267 (215)

Adsorption Characteristics of Modified Bamboo Charcoal on Cu(II) and Cd(II) in Water

open access: yesToxics, 2022
With the development of industry in recent years, heavy metal contamination in water and substrate, which may pose a serious threat to human health if left untreated, has attracted increasing attention.
Yizhuo Wang, He Li, Shaohua Lin
doaj   +1 more source

Soil heavy metal contamination and acid deposition: experimental approach on two forest soils in Hunan, Southern China [PDF]

open access: yes, 2005
In 1985, a tailing dam collapsed in Hunan province (southern China) leading to soil contamination by heavy metals from the tailings waste. Moreover, acid deposition becomes more and more serious in this area. In this context, two forest soils (a red soil
Probst, Jean-Luc   +3 more
core   +1 more source

Highly Efficient Adsorption of Heavy Metals and Cationic Dyes by Smart Functionalized Sodium Alginate Hydrogels

open access: yesGels, 2022
In this paper, functionalized sodium alginate hydrogel (FSAH) was prepared to efficiently adsorb heavy metals and dyes. Hydrazide-functionalized sodium alginate (SA) prepared hydrazone groups to selectively capture heavy metals (Pb2+, Cd2+, and Cu2 ...
Tianzhu Shi   +5 more
doaj   +1 more source

Adsorption of heavy metals by brewery biomass [PDF]

open access: yesKorean Journal of Chemical Engineering, 2005
In this work, biosorption of lead, copper and cadmium by waste brewery yeast has been studied. The adsorption capacity for lead, copper and cadmium on the biomass increased with the increasing temperature and the maximum uptakes were 0.465 mmolPb/g (96.4 mg/g), 0.769 mmolCu/g (48.9 mg/g) and 0.127 mmolCd/g (14.3 mg/g) at 308 K.
Kim, TY   +6 more
openaire   +2 more sources

A Study on Adsorption of Heavy Metals with Zeolite and FeS Media

open access: yes대한환경공학회지, 2020
Objectives:Adsorption characteristics in aqueous solution were investigated to effectively remove heavy metals by the crystallization of FeS and reaction kinetics were analyzed to compare with heavy metal adsorption characteristics of zeolite.
Gimin Lee   +3 more
doaj   +1 more source

Adsorption of heavy metal cations in montmorillonite [PDF]

open access: yesSoil Science and Plant Nutrition, 1983
Abstract Adsorption behavior of Ca, Ni, and Cu by a montmorillonite at pH 4 through 7 was analyzed within a wide range of divalent cation concentrations (M2+=1.25 to 4.5 mi/liter). The data were interpreted in terms of the following Langmuir equation which was derived in assuming that the adsorption process of divalent metal cations by Na ...
Yoshiaki Takahashi, Hideo Imai
openaire   +1 more source

Characteristics of Heavy Metals Adsorption Cu, Pb and Cd Using Synthetics Zeolite Zsm-5 [PDF]

open access: yesJournal of Tropical Soils, 2015
It is generally known that zeolite has potential for heavy metal adsorption. The objectives of this study were to synthesize and characterize zeolite ZSM-5 and to figure out the adsorption capacity of zeolite ZSM-5 for heavy metals of Cu2+, Pb2+ and Cd2+
Priyadi   +3 more
doaj   +1 more source

Adsorption of heavy metals by EPS of activated sludge

open access: yesWater Science and Technology, 2001
Extracellular polymeric substances (EPSs) were extracted by high-speed centrifugation at 20,000 G for 30 min from an activated sludge treating municipal wastewater. Each gram of sludge, as measured in volatile suspended solids (VSS), contained 7.3 mg of EPS, including 6.5 mg of protein (EPSp) and 0.8 mg of carbohydrate (EPSc). The EPSp had a mean MW of
Liu, Y, Lam, H, Fang, HHP
openaire   +4 more sources

Interactions between cadmium and lead with acidic soils: Experimental evidence of similar adsorption patterns for a wide range of metal concentrations and the implications of metal migration [PDF]

open access: yes, 2012
The importance of high- and low-affinity surface sites for cadmium and lead adsorption in typical European and Asian soils was investigated. Adsorption experiments on surface and deep horizons of acidic brown (Vosges, France) and red loess soils (Hunan ...
A. Probst   +7 more
core   +1 more source

Functionalized sepiolite for heavy metal ions adsorption

open access: yesDesalination, 2008
Abstract Surface modification of clays has become increasingly important due to the practical applications of clays such as fillers and adsorbents. The surface modification of sepiolite with [3-(2-aminoethylamino)propyl]trimethoxysilane has been employed. The modified sepiolite surface was investigated by FTIR, XRD and DTA/TG analysis.
Doğan, Mehmet   +5 more
openaire   +4 more sources

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