6 research outputs found
Convectional and Advanced Method of Industrial Waste Treatment
<p>The world
increase in population has lead to an increase in industrial activities that
has added so much load to aquatic bodies thereby increasing the risk on both
aquatic organisms and we humans in general. Technology, particularly in terms
of performance and available waste-water treatment options, has developed in
parallel with economic growth. However, technology cannot be expected to solve
each pollution problem. Typically, a wastewater treatment plant transfers 1 m3
of wastewater into 1-2 litres of concentrated sludge. Wastewater treatment
systems are generally capital-intensive and require expensive, specialised
operators. Therefore, before selecting and investing in wastewater treatment
technology it is always preferable to investigate whether pollution can be
minimised or prevented. For any pollution control initiative an analysis of
cost-effectiveness needs to be made and compared with all conceivable
alternatives. This chapter aims to show convectional method of treatment as a
good option to remediate waste water from industries. </p
Water Pollution Arising From Chemical Industry: A Review
<p>This chapter focuses on the contribution of chemical
industries in water pollution. Since water pollution have become a global
reality and caught the attention of the society due to increasing population
and adoption of industrial based life style. Topics such as Sources of
Pollution, Types of water Pollution, Ecological Characteristic of Chemicals and
some Case Study studies of some Nigeria Rivers were used to make a contributing
conclusion.</p
The Contribution of Chemical Industries to Air Pollution: A Concise Review
<p>The
phenomenon of air pollution involves a sequence of events: the generation of
pollutants, their release from a source, their transport and transformation,
removal from the atmosphere; and their effects on human beings, materials, and
ecosystems. EPA has established national
ambient air quality standards (NAAQS) for six of the most common air
pollutants—carbon monoxide, lead, ground-level ozone, particulate matter,
nitrogen dioxide, and sulfur dioxide—known as “criteria” air pollutants (or
simply “criteria pollutants”). The presence of these pollutants in ambient air
is generally due to numerous diverse and widespread sources of emissions. The
primary NAAQS are set to protect public health. EPA also sets secondary NAAQS
to protect public welfare from adverse effects of criteria pollutants,
including protection against visibility impairment, or damage to animals,
crops, vegetation, or buildings. Because it is generally either economically
infeasible or technically impossible to design processes for absolutely zero
emissions of air pollutants, we seek to control the emissions to a level such
that effects are either nonexistent or minimized. This review thereby pictures
the role of chemical industries to air pollution.</p
The Role of Green Coagulants in Wastewater Treatment: A Review
This chapter shows the role of natural green coagulant in the remediation of wastewate
Phytoremediation of Landfill Leachates Using Pistia Stratiotes: A Case Study"
<div><br></div><div>The study involved a laboratory experiment on the use of Pistia stratiotes in the phytoremediation of leachates collected from Kinkinau landfill. The physiochemical characteristics of the leachates were determined before and after the treatment. The experiment lasted for three weeks and was repeated for about six times the rate of the mean reduction was recorded. The highest rate of mean reduction was for heavy metals. Other physico-chemical parameters were drastically reduced. Pistia stratiotes is a suitable candidate for effective phytoremediation of water from Landfill leachates.</div><div><br></div