institute of environmental science and engineering singapore
encyclopedia of environmental science and engineering, fifth edition
Ngày tải lên :
01/04/2014, 11:44
... first term on the right-hand side represents the rate of
formation of particles of volume v due to coagulation, and
the second term that rate of loss of particles of volume v by
coagulation ... (schematic) as function of time of day, over
city and country.
50
40
30
20
0 5 10 15 20
Time of day
100-T, (%)
FIGURE 7 Concentrations of air pollution (100-T%), as function of time of day, on clear ... overview of the effects of air
pollutants and their causes.
From a practical standpoint, the most important factor in
the control of indoor air pollution is the quality of the ven-
tilation of occupied...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - ACID RAIN ppt
Ngày tải lên :
10/08/2014, 20:20
... was a summary of the causes and
effects of acidic deposition and a comparison of the costs and
effectiveness of alternative emission control scenarios. Since
adverse effects of acid rain on ... R.A. (1872), Air and Rain: The Beginnings of a Chemical Climatol-
ogy. Longmans, Green, and Co., London, England.
Stensland, G.J. and R.G. Semonin (1982), Another interpretation of
the pH trend ...
4 percent of the lakes and 8 percent of the streams
are chronically acidic. Florida has the highest per-
centage of acidic surface waters (23 percent of the
lakes and 39 percent of the streams)....
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - AEROSOLS pdf
Ngày tải lên :
10/08/2014, 20:20
... first term on the right-hand side represents the rate of
formation of particles of volume v due to coagulation, and
the second term that rate of loss of particles of volume v by
coagulation ... respectively, which are the functions of u, l,
D
p
and m.
The index of refraction m of a particle is given by the
inverse of the ratio of the propagation speed of light in a
vacuum k
0
to ... properties of an individual particle are a
function of its size, shape and refractive index. The intensity of
scattered light is a function of the scattering angle, the inten-
sity and wavelength of...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - AIR POLLUTANT EFFECTS pot
Ngày tải lên :
10/08/2014, 20:20
... competition.
(HbCO)
(HbO)
210
PC
O
PO
22
(HbCO) and (HbO
2
) are the concentrations of carboxyhemo-
globin and oxyhemoglobin, and PCO and PO
2
are the partial
pressures of carbon monoxide and oxygen. Inspiration of air
containing ...
engines and tailpipes; gasoline stations; the use of solvents,
paints, and lacquers; and a variety of industrial operations.
Thus, the control of ozone is complicated by the variety of
sources and ... intensity of
the activities producing the emissions, the effectiveness of
the controls, and the quality of the surveillance instituted to
ensure the continued proper use and maintenance of the...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - AIR POLLUTION METEOROLOGY pps
Ngày tải lên :
10/08/2014, 20:20
... of time of day, over
city and country.
50
40
30
20
05101520
Time of day
100-T, (%)
FIGURE 7 Concentrations of air pollution (100-T%), as function of time of day, on clear
day (solid line) and ... importance of heat convection and mechan-
ical turbulence is often characterized by the Richardson
number, Ri. Actually, – Ri is a measure of the relative rate
of production of convective and mechanical ... later, and requires a fairly
sophisticated handling of meteorological data. The same
models then also help in planning future growth of housing
and industry.
Of course, not all problems of air...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - AIR POLLUTION SOURCES ppsx
Ngày tải lên :
10/08/2014, 20:20
... proportioning of
sand, gravel, cement, and water by means of
weight hoppers and conveyors into a mixing
receiver.
Particulate emissions consist primarily of cement dust,
but some sand and aggregate ... form of aerosols, fume, and
sprays. The largest use of lead 39% of the total in
1968 is in the construction of storage batteries. The
second largest use is in the manufacture of gasoline
and ... contribution of
vanadium in the lignite deposit and the ash
Use of additives: Use of magnesium
oxide in oil-fired burners, resulting
in the reduction of fine particulate
and amounts of vanadium...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - AQUATIC PRIMARY PRODUCTION pdf
Ngày tải lên :
10/08/2014, 20:20
... the rate of photosynthesis,
addition of biomass per unit of time (yield), or indirectly
by nutrient loss or a measure of respiration of the aquatic
community.
METHODS OF STUDY
Standing crop ... reservoir and in the Black Sea.
PRIMARY PRODUCTION AND EUTROPHICATION
The process of increasing productivity of a body of water is
known as eutrophication and in the idealized succession of
lakes, ... north
end of the lake and the southern end of the lake showed differ-
ent periods of high productivity. This variability in productivity
may be influenced by sewage discharge and land disturbance....
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - ATMOSPHERIC CHEMISTRY ppsx
Ngày tải lên :
10/08/2014, 20:20
... mecha-
nism. Because of the large number of important reactions
that take place in the atmosphere, the rapid rates of many of
them, and the low concentrations of most of the reactants, the ... effects on stratospheric ozone, the sources and fates of
toxic chemicals in the atmosphere, and urban and regional haze
issues and the presence and effects of fine particulate matter in
the atmosphere. ... the condensation of low-volatility products
of the photooxidation of hydrocarbons (secondary OC).
The organic component of ambient particles is a complex
mixture of hundreds of organic compounds,...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - BIOLOGICAL TREATMENT OF WASTEWATER doc
Ngày tải lên :
10/08/2014, 20:20
... Encyclopedia of Environmen-
tal Science and Engineering, Vol. 1, edited by J. R. Pfafflin and E.N.
Ziegler, Gordon and Breach, New York.
2. Gates, W.E. and S. Ghosh, Biokinetic Evaluation of BOD ... Bewtra, J.K., Biological Treatment of Wastewater, Encyclopedia of
Environmental Science and Technology, Vol. I, edited by E. Ziegler
and J. Pfafflin, Gordon and Breach Science Publishers Inc., New ... Treatment of Toxic and Nontoxic Wastes, Water Science
and Technology, Vol. 18, 1986, pp. 123–137.
27. Godrej, A.N. and J.H. Sherrard, Kinetics and Stoichiometry of Acti-
vated Sludge Treatment of...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - BROWNFIELDS pot
Ngày tải lên :
10/08/2014, 20:20
...
University of Cincinnati provides training and environmental-
justice support and broadens community affiliations.
COMMON AND LEGAL DEFINITIONS
The EPA and other environmental- and health-protection ... pilot cleanup and redevelopment pro-
gram in 1993. The Chicago Department of Environmental
Protection, in partnership with the mayor’s office and
the Chicago Departments of Planning and Development, ...
Amendments and Reauthorization Act (SARA) of 1986;
the Medical Waste Tracking Act of 1988; the Great Lake
Critical Programs Act of 1990; the Clean Air Act of 1990; the
Clean Water Act of 1990; and...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - CHEMICAL EFFECTS: see EFFECTS OF CHEMICALS; AIR POLLUTANT EFFECTS; POLLUTION EFFECTS ON FISH CHEMICAL TREATMENT: see PHYSICAL AND CHEMICAL TREATMENT OF WASTEWATERS potx
Ngày tải lên :
10/08/2014, 20:20
... conditions
and therefore must be evaluated in terms of their potential
impacts and control mechanisms. Coal pile runoff and coal
wetting wastewater contain varying amounts of coal fines
and dissolved ...
Overcoming both process engineering and environmental
problems will be crucial factors in the development of coal
liquefaction and gasification plants. Depending upon proj-
ect size and complexity, ... nitrogen to
ammonia and oxygen to water).
According to Quig and Granger (1983), a coal conver-
sion facility impacts the environment through the handling
of large amounts of coal, and discharges...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - COMMUNITY HEALTHGENERAL pot
Ngày tải lên :
10/08/2014, 20:20
... comfort, and efficiency of residents. Cities and
towns are judged on the numbers and quality of existing rec-
reation opportunities, schools and colleges, and transporta-
tion routes, and fiscal ... of crimes, numbers of crimes solved and the convictions
that result. Social health indices would include the numbers of
persons on public welfare or assistance, and the numbers and
rates of ... ambulance equipment and EMT-A training is
approved by official boards of physicians and other health
care professionals; it is used in accord with tested protocols
and the support of hospital physicians...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - DESALINATION ppsx
Ngày tải lên :
10/08/2014, 20:20
... uncon-
trollable happening of nature wherever and however found.
In the Bible “good land” is described as one of brooks of
water, of fountains, and depths that spring out of valleys and
hills,” for ... first
object the minimization of the amounts of thermal or mechan-
ical energy and of the amount of equipment and, hence, the
amounts of materials used. Quite often, in such optimization
studies, ... are no standards of general
acceptance for the quality of water required by each group
of users. Domestic demand includes all water consumed in
housekeeping and gardening. A limit of 500 mg/L...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - DISINFECTION pptx
Ngày tải lên :
10/08/2014, 20:20
... Metals
Because of their antibacterial and antifungal activity, com-
pounds of mercury, silver, copper and tin are of importance
from both medical and industrial points of view (Hugo and
Russell, ... coef-
ficient of 2.74 for each 10°C rise in temperature.
3) Type of organism. EO gas will kill bacteria and
their spores, yeasts, moulds and their spores,
and viruses (Griffith and Hall, 1938), and ... sterilization of surgical catgut (although
this method is now little used) and is nowadays used for the
disinfection of drinking and swimming pool water, the disin-
fection of instruments and of clinical...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - ECOLOGY OF PRIMARY TERRESTRIAL CONSUMERS potx
Ngày tải lên :
10/08/2014, 20:20
... terms of number of individuals, biomass,
and energy equivalence, of the quantity of herbivorous ani-
mals present or produced over a period of time, the ener-
getic cost of producing and maintaining ... which energy and matter are stored
in the form of organic substances) of different organisms, of
different trophic levels, and of different ecosystems. They
also offer the best means of evaluating ... direct consumption and
transformation of living tissue, as in the grazing of rangeland
by cattle or sheep, and detritus food-chains, which involve the
disintegration and conversion of dead matter,...
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- the institute of environmental sciences and technology
- the institute of environmental management and assessment
- the institute of environmental science and research
- about the department of computer science and engineering
- institute of environmental sciences and engineering
- institute of environmental sciences and engineering rawalpindi
- physics of semiconductor devices environmental science and engineering
- institute of environmental science and engineering ntu
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- institute of environmental science and engineering iese nust
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- institute of environmental science and engineering pte ltd
- institute of environmental science and research porirua
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