Basic environmental engineering

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BASIC ENVIRONMENTAL ENGINEERING
by R.C. Gaur

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Pages: 318
Publisher: NEW AGE INTERNATIONAL
Edition: 1st, 2008
Language: English
ISBN (13) : 978-81-224-2701-1

Description:

Environmental engineering is one of the most popular, complex and fast growing
disciplines in engineering. The scope of environment includes issues from public
health, aesthetics, and impact of all development activities, pollution control
legislation, standards, regulations, guidelines and their enforcement. Traditionally the
application of engineering principles for the protection and enhancement of the quality
of environment and protection of public health was called as sanitary engineering or
public health engineering. Around 1968 this was changed to environmental
engineering.
For conceiving environmental engineering, one has to consider the definition of
engineering itself. Engineering may be defined as the application, under limits of
scientific principles for the planning, design, execution, operation and maintenance of
structures, equipment and systems for the development and benefit of the society.
Here the word benefit is more important than the development. The so-called
development in some cases may not be in real benefit of the society.
The environmental engineer plans, designs, executes, operates and maintains the
water, wastewater and solid waste management plants. Clean, bacteriologically safe,
potable drinking water protects and enhances public health. Liquid and solid waste
management is a necessary step for healthy living. They also deal with air pollution
control. The resulting pure cleaner air is conducive to people’s good health and prevents
the building and other materials from the harmful effects of air pollution. The
environmental engineer cares for the energy requirements of the society and the ways
and means to protect the environment against the various pollutions created through the
production and consumption of various goods and comfort conditions. It is the duty of
environment engineer to assess the environmental impacts of the various development
and other activities. In general one has to work to have sustainable and holistic
development. Of course there are always constraints of resources, knowledge, human
nature, social and racial considerations that limit the achievement of these goals.
Therefore the environmental engineering is defined as the application of scientific and
engineering principles, under limits, for the protection and enhancement of the
environment that includes the biotic and abiotic both components.
The environment exists in dynamic equilibrium of its biotic (living) and abiotic
(non-living) elements. The solar energy induced photosynthesis synthesizes the carbon
as the plant tissue and we get matter in various forms from the trees. The carnivores,
humans and animals consume the edible matter. They convert it into the energy
required to sustain their lives. Their excreta comes near to the nature and the natural
scavengers, bacteria and others convert it into inorganic matter like nutrients due to
the biological decomposition. The roots of the plants, to form the edible matter again,
extract these nutrients. Like this the nutrient cycle, material cycle, energy cycle and
other cycles like hydrological cycle keep on existing until there is a great shock given
by the human beings.

 
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