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The removal of heavy metals from the wastewater is a matter of
concern for many countries but is a key issue in developing
countries like Pakistan. These heavy metals are of serious health
and environmental concern and there is a need to discover new and
effective methods for their removal from industrial effluents.
Removal of Copper (Cu) and Nickel (Ni) from industrial wastewater
was studied using metal oxide nanoparticles such as magnesium oxide
(MgO) and zinc oxide (ZnO). The metal oxide nanoparticles provide
high adsorption capacity, simple operation and rapid adsorption.
Hues of colors look appealing when affixed on fabrics and is no
doubt the main cause of attraction of a fabric. Earlier used
natural colors though were safe, had low fastness properties and
offered limited range of colors. In an attempt to improve the color
range, fastness and fixture properties new synthetic
nonbiodegradable dyes were swarmed into market but these dyes being
toxic in nature have become a cause of concern to
environmentalists. When these dyes are discharged into waste
streams, they not only cause damage to the aesthetic value of
waters but also impart their toxic and bio-accumulative effects. As
these newly developed dyes remain persistent in environment for
much longer periods of time and hence need to be tackled before
they continue to deter and impart their negative impacts to
environment. The present research is focused on degrading these
dyes by utilization of solid waste that is abundantly available in
third world countries, there by catering both issues of solid waste
management and wastewater treatment in simple and cost-effective
way. We strongly believe that this research is of interest of
sizable community of environmental chemists and technologists.
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Nadine Gordimer
Paperback
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R398
R330
Discovery Miles 3 300
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