|
Showing 1 - 4 of
4 matches in All Departments
World is facing a rising epidemic of global environmental problems.
Modern communication has brought us into a closer contact with
every part of the world; we are compelled to recognize that all the
Earth inhabitants share a common environment and its related
problems. With the onset of industrial revolution in 1700s,
increasing use of fossil fuels has resulted in enormous emissions
of Carbon Dioxide into the atmosphere on burning. The increasing
domestic and industrial energy demands coupled with an increase in
the technological abilities has strengthened our potential for
altering the environment we live. This present study aims to
calculate carbon footprint of energy consumption in Nestle' milk
collection centers in Pakistan. IPCC Guidelines for National
Greenhouse Gas Inventories 2006 aids in the various calculation
that are undertaken in carbon footprint estimation. It is estimated
that a total of 5337.076 tons of Carbon Dioxide emissions results
from energy consumption by the milk collection centers all over the
Pakistan. The aim for all is Carbon neutrality, which though is
quite hard to achieve but is not impossible.
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.
Advanced oxidation processes (AOPs) are now believed to be superior
in treating industrial effluent, especially effluent of textile
industry because of their several advantages over other treatment
techniques, including conventional and biological treatment
methods. In this study, an attempt has been made to assess the
efficiency of AOPs, including Hydrogen Per Oxide alone, Fenton,
Photo-Fenton, Solar Radiation assisted Photo-Fenton and Ozonation
for the color and COD removal of textile effluent. AOPs are proven
to be the efficient method for the treatment of textile effluent.
The performance of Fenton process was slightly better. Ozonation
was proved to be highly feasible and promising technique to
decolorize and reduce COD from textile effluent but it is very
costly. Photo-Fenton process via UV lamp considerably removed the
color and COD but it is not economically viable. Photo-Fenton
(sunlight) proved to be the most cost effective and efficient
procedure for the color and COD removal among all AOP's, whereas
Fenton process to be the second best option. So Solar assisted
Photo-Fenton proved as the most energy and cost effective process
among all AOPs.
The present study is the evaluation of total economic benefits
generated by the solid waste management activities. To assess the
financial viability/ sustainability and evaluation of social
acceptability and likely economic benefits to the locals in terms
of their improved status of life by the implementation of the
Integrated Waste Management System. The study concludes that the
proposed management system does not involve any long term
irreversible negative impacts. Most of the negative impacts
identified in the study are temporary and manageable through
adopting the Social Management Plan, by providing monitoring
arrangements and resources during design, construction and
operation stages of the project.
|
You may like...
Morgan
Kate Mara, Jennifer Jason Leigh, …
Blu-ray disc
(1)
R70
Discovery Miles 700
|
Email address subscribed successfully.
A activation email has been sent to you.
Please click the link in that email to activate your subscription.