نتایج جستجو برای: pb2 cd2 and zn2

تعداد نتایج: 16828612  

2017
Jie Jiang Chaohu Pan Aiping Xiao Xiai Yang Guimin Zhang

Six bacteria strains from heavy-metal-polluted ramie rhizosphere soil were isolated through Cd2+ stress, which were numbered as JJ1, JJ2, JJ10, JJ11, JJ15, and JJ18. Sequence alignment and phylogenic analysis showed that strain JJ1 belonged to Pseudomonas, strain JJ2 belonged to Cupriavidus, strains JJ11 and JJ15 belonged to Bacillus, and strains JJ10 and JJ18 belonged to Acinetobacter. The tol...

The present study was carried out to investigate the adsorption and leaching behavior of Cu2+, Zn2+ and Pb2+ by sediments collected from the western banks of three different sectors along River Nile at Aswan governorate, Egypt. The feasibility of sediments for the removal of Cu2+, Zn2+ and Pb2+ from aqueous solutions was tested under the effect of three conditions (pH, initial metal concentrati...

Journal: :Minerals 2021

Metakaolins (MKs) prepared from low-grade kaolins located in the Alvarães (A) and Barqueiros (B) regions of Portugal were used as aluminosilicate source to compare their effect on compressive strength heavy metal adsorption geopolymers. Natural zeolite, an inexpensive, efficient adsorbent, was additive formulations enhance geopolymers’ capacities reduce MK utilization’s environmental footprint....

Journal: :Journal of Taibah University for Science 2023

The uncontrolled concentrations of heavy metals introduced into the water sources need an effective method for their removal. dithiocarbamate (dtc) ligands are most popular precipitating agents used removal from wastewater. Presently, two novel dtc ligands, one without methylene linker (K2L1) and other with (K2L2) were eight ions including Fe2+, Co2+, Ni2+, Cu2+, Cd2+, Ag+, Zn2+ Pb2+ aqueous so...

Journal: Pollution 2019

The present study was carried out to investigate the adsorption and leaching behavior of Cu2+, Zn2+ and Pb2+ by sediments collected from the western banks of three different sectors along River Nile at Aswan governorate, Egypt. The feasibility of sediments for the removal of Cu2+, Zn2+ and Pb2+ from aqueous solutions was tested under the effect of three conditions (pH, initial metal concentrati...

Journal: :VNU Journal of Science:Natural Sciences and Technology 2022

Water-soluble CdTe quantum dots (QDs) have been utilized as photoluminescence probes for the detection of metal ions such Pb2+, Hg2+, Cd2+, etc. We initially developed highly (PL) Zn-doped toxic detection. A study on changes optical properties and QDs when exposed to Pb2+ suggested that could act a surface passivating agent reduce Te2- dangling bonds while Zn2+ dopant stabilizes against ambient...

Journal: :Metals 2023

The accurate detection of Cd2+ and Pb2+ in soils by square-wave anodic stripping voltammetry (SWASV) faces great challenges because the interaction between multiple heavy metal ions (HMIs) interferes seriously with their SWASV signals. To detect high accuracy, an overlooked but informative signal, i.e., current peak area, was employed combined chemometric methods to suppress above mutual interf...

Journal: :Environmental Health Perspectives 1998
S H Garrett S Somji J H Todd M A Sens D A Sens

In contrast to the single metallothionein (MT)-1 gene of the mouse, the human MT-1 gene family is composed of seven active genes and six pseudogenes. In this study, the expression of mRNA representing the seven active human MT-1 genes was determined in cultured human proximal tubule (HPT) cells under basal conditions and after exposure to the metals Cd2+, Zn2+, Cu2+, Hg2+, Ag2+, and Pb2+. Basal...

The deposits of clinoptilolite (CLI) in Iran after activation with sodium chloride or sodium hydroxide solution was subjected to ion exchange with some heavy and toxic cations. The results showed that the absorption for Ca2+ (7.5 ppm), Cu2+ (50 ppm), Zn2+ (40 ppm), Cd2+ (40 ppm), Pb2+ (500 ppm) and Al3+ (5 ppm) were 95.2, 96.70, 93.30,99.12, 99.2 and 90.0 percents, respectively. The noteworth...

Journal: :journal of sciences islamic republic of iran 0

the deposits of clinoptilolite (cli) in iran after activation with sodium chloride or sodium hydroxide solution was subjected to ion exchange with some heavy and toxic cations. the results showed that the absorption for ca2+ (7.5 ppm), cu2+ (50 ppm), zn2+ (40 ppm), cd2+ (40 ppm), pb2+ (500 ppm) and al3+ (5 ppm) were 95.2, 96.70, 93.30,99.12, 99.2 and 90.0 percents, respectively. the noteworth o...

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