Removal of Zinc ions from industrial wastewater with wool fibers

Ayad H.  Jassim; Salwa Shamran  Jassim; Ammar W. Ahmed

doi:10.21123/bsj.2010.7.3.1193-1201

Details

Publication Date

Sun Sep 05 2010

Journal Name

Baghdad Science Journal

Volume

7

Issue Number

3

DOI

10.21123/bsj.2010.7.3.1193-1201

Choose Citation Style

Statistics

View publication

12

Statistics

(1)

Removal of Zinc ions from industrial wastewater with wool fibers

"Ion Exchange

Wool Fibers

Wastewater

Zinc Ions"

Ayad H. Jassim

Salwa Shamran Jassim

Ammar W. Ahmed

...Show More Authors

In this research, the efficiency of low-cost unmodified wool fibers were used to remove zinc ion from industrial wastewater. Removal of zinc ion was achieved at 99.52% by using simple wool column. The experiment was carried out under varying conditions of (2h) contact time, metal ion concentration (50mg/l), wool fibers quantity to treated water (70g/l), pH(7) & acid concentration (0.05M). The aim of this method is to use a high sensitive, available & cheep natural material which applied successfully for industrial wastewater& synthetic water, where zinc ion concentration was reduced from (14.6mg/l) to (0.07mg/l) & consequently the hazardous effect of contamination was minimized.

View Publication Preview PDF

Quick Preview PDF

Publication Date

Mon Oct 16 2023

Journal Name

F1000research

Assessment of general population knowledge, attitude, and practice on safe unused and expired drugs disposal: a cross-sectional study

Abd-ul Munaf

Fadya

...Show More Authors

Background The appropriate disposal of medication is a well-recognized issue that has convened growing recognition in several contexts. Insufficient awareness relating to appropriate methods for the disposal of unneeded medicine may result in notable consequences. The current research was conducted among the public in Iraq with the aim of examining their knowledge, attitude, and practices regarding the proper disposal of unused and expired medicines. Methods The present study used an observational cross-sectional design that was community-based. The data were obtained from using an online questionnaire. The study sample included people of diverse genders, regardless of their race or occupational status. The study mandated that all pa

(5)

(8)

Publication Date

Tue Jul 01 2025

Journal Name

Nigerian Postgraduate Medical Journal

The Effectiveness of Deep Breathing Exercise Training Program in Reducing Discomfort Symptoms amongst Undergoing Haemodialysis: A Randomised Controlled Trial

Huda Ali

Haider Mohammed

...Show More Authors

Background:

Chronic kidney disease is one of the leading public health problems that affect millions of women and men worldwide.

Aims:

This study aims to examine the effect of deep breathing to reduce discomfort amongst patient undergoing haemodialysis (HD).

Materials and Methods:

This randomised controlled experimental study was conducted consisted of 108 patients (54 in each group) who undergoing HD in hospitalised adults’ patients between November 2024 an

View Publication

(1)

(2)

Publication Date

Sat Sep 01 2018

Journal Name

Polyhedron

Novel dichloro (bis {2-[1-(4-methylphenyl)-1H-1, 2, 3-triazol-4-yl-κN3] pyridine-κN}) metal (II) coordination compounds of seven transition metals (Mn, Fe, Co, Ni, Cu, Zn and Cd)

The 1

3-dipolar cycloaddition “click” reaction between an azide and an alkyne to give a 1

2

3-triazole was reported by Huisgen in 1961 [1]. In 2002 the Copper(I)-catalyzed Azide-Alkyne Cycloaddition (CuAAC) to prepare a 1

2

3-triazole was reported [2]

[3]. The existence of relatively basic nitrogen atoms in the 1

2

3-triazole rings

and the possibility of introducing additional donor groups in the substituents (Fig. 1)

made the CuAAC “click” reaction an attractive method to prepare differently substituted 1

2

3-triazoles. These compounds have been used as ligands to coordinate to various metal ions that display a range of applications such as in electrochemical and photochemical studies

in supramolecular chemistry

magnetism

metal-ion sensing and catalysis [4]. The reasons for the success of the “click” reaction

is that it is easy to carry out and is widely applicable. It is not affected by a variety of functional groups

and can be carried out with a variety of Cu(I) catalysts and solvents

including aqueous conditions. The Cu(I) catalysts overcome the high activation energy barrier of the non-catalyzed Huisgen reaction by changing the mechanism of the reaction. A large variety of copper catalysts can be used for the CuAAC reaction

on condition that the maximum concentration of Cu(I) species is generated during the reaction. The pre-catalyst can be a Cu(II) salt (usually CuSO4) together with a reducing agent (often sodium ascorbate) or a Cu(I) compound in the presence of a base or amine ligand and a reducing agent to prevent oxidation to Cu(II). Some strong oxidising cupric salts or complexes such as Cu(OAc)2 also work. The solvent is very flexible from organic to aqueous

with the most commonly used combination water + an alcohol (t-BuOH

MeOH or EtOH). The key role of the solvent or solvent mixture is to solubilize the substrates and Cu(I) catalyst in order to ensure rapid reactions. Such aqueous conditions are very useful for biochemical conjugations

as well as for organic syntheses. We recently reported on the synthesis of a series of differently substituted 1

2

3-triazole chromophores

the substituted 2-(1-phenyl-1H-1

2

3-triazol-4-yl)pyridine ligands [5]

see Fig. 2 middle

with substituents R = H (L1)

CH3 (L2)

OCH3 (L3)

COOH

F

Cl

CN

CF3

O(CH2)3CH3 and N(CH3)2. These versatile ligands were found to coordinate to various first row transition metals

such as manganese

cobalt and nickel [6]. Here we extend the series to include more first row transition metal(II) coordination compounds

iron

copper and zinc

as well as a second row transition metal(II) coordination compound

cadmium

containing the 2-(1-(4-methyl-phenyl)-1H-1

2

3-triazol-1-yl)pyridine chromophore (Fig. 2 right with R = CH3). This series of seven novel coordination compounds is the first series of pyridyl-triazole based transition metal coordination compounds where seven different transition metals are coordinated to the same 1

2

3-triazole chromophore

namely 2-(1-(4-methyl-phenyl)-1H-1

2

3-triazol-1-yl)pyridine.

Kinaan M

...Show More Authors

Preview PDF

Publication Date

Fri Feb 01 2019

Journal Name

Journal Of Physics: Conference Series

Manufacturing and studying the effect of partial substitution on the properties of the compound Bi2-x AgxSr1.9Ba0.1Ca2Cu3O10+δ superconductors.

Noor S.

Abdulsalam S.

Bilal A.

Shatha

Kareem A.

Saja Amer

...Show More Authors

View Publication

(4)

(3)

Publication Date

Mon Nov 10 2014

Journal Name

Advances In Language And Literary Studies

The Functions of Onomatopoeia in Modern English and Arabic Poetry: A Study in Selected Poems by Lawrence and al-Sayyab

Onomatopoeia

Modern poetry

Arabic poetry

Comparative literature

rhyme and rhythm.

Haitham

...Show More Authors

Onomatopoeia has always been a functional poetic device which enjoys a high sound significance in the poetry of many languages. In modern English and Arabic poetry alike, it proves to be vital and useful at different levels: musical, thematic and at the level of meaning. Still, the cultural difference looms large over the ways it is employed by the poets of each. The present paper investigates the employment of onomatopoeia in the poetry of D. H. Lawrence (1885-1930) and Badr Shakir al-Sayyab (1926-1964) who are chosen due to the importance they enjoy in modern English and Arabic poetry and the richness of their poems in onomatopoeias. The conclusions reached at are in a sense related to cultural differences which govern the use of onomato

View Publication

(2)

Publication Date

Wed Feb 12 2020

Journal Name

Journal Of Xi'an University Of Architecture & Technology

A COMPARATIVE STUDY OF DIRECTIVES IN SAMUEL BECKETT’S ‘END GAME’ AND ‘WAITING FOR GODOT’

Bushra

...Show More Authors

DBN Rashid, JOURNAL OF XI'AN UNIVERSITY OF ARCHITECTURE & TECHNOLOGY, 2020

View Publication

Publication Date

Sat Mar 07 2026

Journal Name

Journal Of Baghdad College Of Dentistry

An Evaluation of Gutta-Percha Penetration Depth into Simulated Lateral Canals by Using Three Different Obturation Techniques (A Comparative Study)

Mohammad Q

Abdul-Karim J

...Show More Authors

Background:sThe aims of this study were to evaluate and compare the ability of three different techniques to obdurate simulated lateral canals, evaluate the effect of the main canal curvature on obturation of lateral canals and compare the gutta-percha penetration between coronal and apical lateral canals. Materials and methods: Resin blocks with 30 straight and 30 curved were used in this study. Each canal has two parallel lateral canals. The main canal has 0.3 mm apical diameter and 0.04 taper. The canals were divided into six groups according to canal curvature and obturation techniques used (n=10): Groups C1 and C2: straight and curved canals obturated with continuous wave technique using E&Q masterTM system. Groups O1 and O2: straight

View Publication Preview PDF

Publication Date

Sat Feb 04 2023

Journal Name

Sport Tk-revista Euroamericana De Ciencias Del Deporte

Functional thinking style and its contribution to learn the accuracy of block and smash serve in volleyball among university students

Ayad Ali

Haider Abdul

israa fouad

...Show More Authors

This study aimed to analyze functional thinking style and its contribution to learn the accuracy of block and smash serve in volleyball among university students. The sample was composed of 120 students of the College of Physical Education and Sports Sciences of the University of Baghdad (academic year 2021/2022). The statistical analyses were carried out with the statistical software SPSS and correlation analyses were conducted. It was found that functional thinking style significantly contributed to learn the accuracy of block and smash serve in volleyball among university students. Therefore, it is necessary to intensify efforts to increase the level of functional thinking among university students, by adopting acad

View Publication

Publication Date

Thu Jun 01 2023

Journal Name

Baghdad Science Journal

Biochemical Study on the Impact of Radiation-induced Oxidative Stress on Radiographers in the X-ray and CT-scan Departments

Ionization radiation

Lipid profile test

Oxidative stress

Reduction

Vitamin D3

Salih Omer

Jian Lateif

...Show More Authors

The consequences of ionizing radiation-induced oxidative stress on radiographers in X-ray and CT-scan departments utilizing several biochemical were analyzed. The study found highly considerable discrepancies in the interplay between radiation levels and gender in terms of mean Malondialdehyde (MAD), Vitamin D3 (Vit.D3), Triiodothyronine (T3), Thyroxine (T4), and High-Density Lipoprotein (HDL), but not Thyroid Stimulating Hormone (TSH), cholesterol, triglyceride (TG) and Low-Density Lipoprotein (LDL). The findings indicated that malondialdehyde is a useful biomarker for assessing oxidative stress in radiographers with exposure to ionizing radiation.

View Publication Preview PDF

(3)

Publication Date

Sat Mar 07 2026

Journal Name

Journal Of Baghdad College Of Dentistry

A study to compare the efficiency of different instrumentation systems for cleaning oval-shaped root canals (An in vitro study)

Tay H

Walid N

...Show More Authors

Background: Proper cleaning and shaping of the whole root canal space have been recognized as a real challenge, particularly in oval-shaped canals.This in vitro study was conducted to evaluate and compare the efficiency of different instrumentation systems in removing of dentin debris at three thirds of oval-shaped root canals and to compare the percentage of remaining dentin debris among the three thirds for each instrumentation system. Materials and methods: Fifty freshly extracted human mandibular molars with single straight oval-shaped distal root canals were randomly divided into five groups of ten teeth each. Group One: instrumentation with ProTaper Universal hand instruments, Group Two: instrumentation with ProTaper Universal rotary

View Publication Preview PDF

1 2 ... 2463 2464 2465 2466 ... 2569 2570