440 POWER PLANT ENGINEERING
Sl.No. Description of Drain Discharge (mld) BOD (mg/l)- Moat Drain 2 195
- Civil Mill Drain 55 180
- Rajghat/Delhi Gate Drain 43 190
- Sen-Nursing Home 100 280
- Drain No.14 153 320
- Bara Pula Drain 255 165
- Maharani Bagh Drain 54 370
- Kalkaji Drain 27 210
- Tehkand Drain 34 310
- Tuglakabad Drain 11 150
- Trans Yamuna 1471 240
Total 3651
Source : DJB Pre-feasibility study report on rehabilitation of Sewer System.
13.20 Method for Pollution Control
The following methods for developing the power generating capacity without pollution to the
atmosphere.
- F.P. Rogers has suggested that it would be safer to set the nuclear power plants underground.
This definitely preserves the environment. There would be lot of difficulties in excavation,
concreting, roof lining, structural supporting, lowering the reactor equipments and many oth-
ers. But even then it is suggested that locating the power plant underground would be profit-
able in the long run. - The tidal power must be developed in the coining years that is free from pollution.
- The thermal discharges to the environment are common from fossil and nuclear-fueled power
stations. Significant quantities of particulates and gases from fossil-fueled system, small quan-
tities of radioactive gases from nuclear, have an impact upon an environment. Offshore sit-
ting of power plants mitigates these problems of pollution. Offshore sitting of power stations
also isolates the plants from earthquakes and provides the thermal enhancement of the water
to increase recreational and commercial values. No doubt, offshore location requires new
design consideration and floating platforms in the sea increasing the capital cost of the plant. - It was proposed that the thermal pollution of the atmosphere and the generation cost of the
plant could be reduced by using the low-grade energy exhausted by the steam. The ideal use
for enormous quantity of residual energy from steam power plants requires large demand
with unity power factor.
Particularly in U.S.A., many uses of energy are available in winter, but not in summer therefore
finding large-scale valuable uses of thermal energy is the key for developing beneficial uses.