This study was conducted to estimate the heavy metal pollution in groundwater, soil, fruits, and vegetables within cement industry its vicinity. Seven different fruits seven metals (Cd, Zn, Ni, Co, Cu, Cr, Mn) were selected for analysis fruit, vegetable samples by atomic absorption spectrometry (AAS). Results of this compared with National International Standards Pak NSWQD, WHO, USEPA. The pH s...

Liquid pig feed (LPF) and skimmed milk (SM) acidified to pH 4 with lactic or hydrochloric acid (HCl) were treated with 0, 2.5, 5. 12.5, 25 or 50 ppm Cu and challenged with 10 c.f.u ml Salmonella Typhimurium DT104:30. The decimal reduction time (D) was determined by enumeration of viable Salmonellae at appropriate time intervals after inoculation. Additional SM samples, acidified to pH 2.5 with ...

A total of 480 pigs (PIC 327 × 1050; initially 107.4 lb) were used to determine the interactive effects of supplemental Cu, Zn, and Ractopamine HCl on finishing pig growth performance, carcass characteristics, and antimicrobial susceptibility of enteric bacteria. Dietary treatments were arranged in a 2 × 2 × 2 factorial with main effects of added copper sulfate (CuSO4; 0 vs. 125 ppm Cu), added ...

Effective and inexpensive adsorbents are needed for wastewater treatment. This study describes the use of Cu/natural zeolite as an adsorbent in adsorption remazol black b dye terms kinetics isotherms. Cu/zeolite was obtained by activating natural using HCl NH4Cl solution then impregnated Cu(NO3)2.3H2O solution. Characterization XRD, SEM-EDX tools. Adsorption with a batch system carried out at v...

The aim of the study was to determine whether using chemical and radiochemical analysis of lake sediments can highlight changes in the climate. Also it was studied whether human impact on the environment can be observed and to what extent such changes are in agreement with historical data. Samples of 16 cm thick sediment cores from the Smreczynski Staw Lake were collected and divided into 1 cm ...

returning crop residues into the soil as a source of organic matter are an important source of copper and can play an important role in the soil fertility. in addition to the role of the organic matter in increasing the concentration of micronutrients in soil solution, attention should be also paid to the role of the kind and the quantity of the root’s exudates released in response to the incor...

In this study, we have proposed a new nanoparticle-containing test paper sensor that could be used as an inexpensive, easy-to-use, portable, and highly selective sensor to detect Cu(2+) ions in aqueous solutions. This disposable paper sensor is based on ZnO@ZnS core-shell nanoparticles. The core-shell nanoparticles were synthesized using a chemical method and then they were used for coating the...

Atom-probe tomography, transmission electron-microscopy, x-ray diffraction, and firstprinciples calculations were employed to study the (i) compositional evolution of GPII-zones and "!-precipitates, and (ii) solute segregation at !-Al/"!-interfaces in Al-4 wt. % Cu alloys. GPII zones are observed for aging at 438 K for 8 h, whereas higher aging temperatures, 463 K for 8 h and 533 K for 4 h, rev...

Abstract Background A pot experiment was conducted to evaluate the phytotoxic thresholds of zinc oxide (ZnO NPs), iron (FeO copper (Cu and silver nanoparticles (Ag NPs) on cotton. All were biosynthesized from Conocarpus erectus L. leaf extract. They characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transmission infrared spectroscopy (FTIR). Five concentration...