PART II – SANITARY ENGINEERING
3.1 COLLECTION AND CONVEYANCE OF SEWAGE
SANITATION – PURPOSE – TERMS – SYSTEMS OF SANITATION –
QUANTITY OF SEWAGE – VARIATION IN RATE OF FLOW OF SEWAGE –
ESTIMATION OF STORM WATER – PROBLEMS – MINIMUM SIZE OF
SEWER – SHAPES OF SEWER – MATERIALS USED FOR SEWER- JOINTS
IN SEWER LINE – LAYING AND TESTING OF SEWER LINES – VENTILATION
OF SEWERS -CLEANING OF SEWERS.
4.1 TREATMENT AND DISPOSAL OF SEWAGE
OBJECTS OF SEWAGE TREATMENT – FLOW DIAGRAM OF SEWAGE
TREATMENT PLANTS – TREATMENT OF SEWAGE – PRIMARY AND
SECONDARY TREATMENTS – SCREENS – SKIMMING TANKS – GRIT
CHAMBERS – SEDIMENTATION TANKS – FILTERS – TYPES AND
DESCRIPTION OF FILTERS – ACTIVATED SLUDGE PROCESS – SEPTIC
TANKS FOR ISOLATED BUILDINGS – CONSTRUCTION AND WORKING OF
SEPTIC TANKS – DISPOSAL OF SEPTIC TANK EFFLUENT – SOAK PITS,
DISPERSION TRENCHES – OXIDATION PONDS – SLUDGE – TYPES –
METHODS OF SLUDGE DISPOSAL