Energy and Impulse Momentum Methods for Rigid Bodies

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Basic Environmental Engineering and Elementary Biology
CH-301
 

 

General
Basic ideas of environment, basic concepts, man, society & environment, their interrelationship.

Mathematics of population growth and associated problems, Importance of population study in environmental engineering, definition of
resource, types of resource, renewable, non-renewable, potentially renewable, effect of excessive use vis-à-vis population growth,
Sustainable Development.

Materials balance: Steady state conservation system, steady state system with non conservative pollutants, step function.

Environmental degradation: Natural environmental Hazards like Flood, earthquake, Landslide-causes, effects and control/management;
Anthropogenic degradation like Acid rain-cause, effects and control. Nature and scope of Environmental Science and Engineering.

Ecology
Elements of ecology: System, open system, closed system, definition of ecology, species, population, community, definition of ecosystem-
components types and function. 1L
Structure and function of the following ecosystem: Forest ecosystem, Grassland ecosystem, Desert ecosystem, Aquatic ecosystems,
Mangrove ecosystem (special reference to Sundar ban); Food chain [definition and one example of each food chain], Food web.

Biogeochemical Cycle- definition, significance, flow chart of different cycles with only elementary reaction [Oxygen, carbon, Nitrogen,
Phosphate, Sulphur].

Biodiversity- types, importance, Endemic species, Biodiversity Hot-spot, Threats to biodiversity,
Conservation of biodiversity.

Air pollution and control
Atmospheric Composition: Troposphere, Stratosphere, Mesosphere, Thermosphere, Tropopause and Mesopause.

Energy balance: Conductive and Convective heat transfer, radiation heat transfer, simple global temperature model [Earth as a black body,
earth as albedo], Problems.

Green house effects: Definition, impact of greenhouse gases on the global climate and consequently on sea water level, agriculture and
marine food.Global warming and its consequence, Control of Global warming. Earth’s heat budget.

Lapse rate: Ambient lapse rate Adiabatic lapse rate, atmospheric stability, temperature inversion (radiation inversion).

Atmospheric dispersion: Maximum mixing depth, ventilation coefficient, effective stack height, smokestack plumes and Gaussian plume
model.

Definition of pollutants and contaminants, Primary and secondary pollutants: emission standard, criteria pollutant.
Sources and effect of different air pollutants- Suspended particulate matter, oxides of carbon, oxides of nitrogen, oxides of sulphur,
particulate, PAN.

Smog, Photochemical smog and London smog.
Depletion Ozone layer: CFC, destruction of ozone layer by CFC, impact of other green house gases, effect of ozone modification.

Standards and control measures: Industrial, commercial and residential air quality standard, control measure (ESP. cyclone separator, bag
house, catalytic converter, scrubber (ventury), Statement with brief reference).

Water Pollution and Control
Hydrosphere, Hydrological cycle and Natural water.
Pollutants of water, their origin and effects: Oxygen demanding wastes, pathogens, nutrients, Salts, thermal application, heavy metals,
pesticides, volatile organic compounds.

River/Lake/ground water pollution: River: DO, 5 day BOD test, Seeded BOD test, BOD reaction rate constants, Effect of oxygen
demanding wastes on river[deoxygenation, reaeration], COD, Oil, Greases, pH.

Lake: Eutrophication [Definition, source and effect]. 1L
Ground water: Aquifers, hydraulic gradient, ground water flow (Definition only) 1L
Standard and control: Waste water standard [BOD, COD, Oil, Grease],
Water Treatment system [coagulation and flocculation, sedimentation and filtration, disinfection, hardness and alkalinity, softening]
Waste water treatment system, primary and secondary treatments [Trickling filters, rotating biological contractor, Activated sludge, sludge
treatment, oxidation ponds] tertiary treatment definition.

Water pollution due to the toxic elements and their biochemical effects: Lead, Mercury, Cadmium, and Arsenic

Land Pollution
Lithosphere; Internal structure of earth, rock and soil

Solid Waste: Municipal, industrial, commercial, agricultural, domestic, pathological and hazardous solid wastes; Recovery and disposal
method- Open dumping, Land filling, incineration, composting, recycling.
Solid waste management and control (hazardous and biomedical waste).

Noise Pollution
Definition of noise, effect of noise pollution, noise classification [Transport noise, occupational noise, neighbourhood noise]

Definition of noise frequency, noise pressure, noise intensity, noise threshold limit value, equivalent noise level,
L10 (18 hr Index) ,
Ldn .
Noise pollution control.

Environmental Management:
Environmental impact assessment, Environmental Audit, Environmental laws and protection act of India, Different international
environmental treaty/ agreement/ protocol.

References/Books
1.
Masters, G. M., “Introduction to Environmental Engineering and Science”, Prentice-Hall of India Pvt. Ltd., 1991.
De, A. K., “Environmental Chemistry”, New Age International.