ENVIRONMENTAL ENGINEERING II
L T PC
To educate the students on the principles and design of Sewage Collection, Conveyance,
treatment and disposal
PLANNING FOR SEWERAGE SYSTEMS
Sources of wastewater generation – Effects – Estimation of sanitary sewage flow –
Estimation of storm runoff – Factors affecting Characteristics and composition of sewage and
their significance – Effluent standards – Legislation requirements.
Sewerage – Hydraulics of flow in sewers – Objectives – Design period - Design of sanitary
and storm sewers – Small bore systems - Computer applications – Laying, joining &
testing of sewers – appurtenances – Pumps – selection of pumps and pipe Drainage -.
Plumbing System for Buildings – One pipe and two pipe system.
PRIMARY TREATMENT OF SEWAGE
Objective – Unit Operation and Processes – Selection of treatment processes – Onsite
sanitation - Septic tank, Grey water harvesting – Primary treatment – Principles,
functions design and drawing of screen, grit chambers and primary sedimentation tanks –
Operation and Mintenance aspects
SECONDARY TREATMENT OF SEWAGE
Objective – Selection of Treatment Methods – Principles, Functions, Design and Drawing
of Units - Activated Sludge Process and Trickling filter, other treatment methods – Oxidation
ditches, UASB – Waste Stabilization Ponds – Reclamation and Reuse of sewage - Recent
Advances in Sewage Treatment – Construction and Operation & Maintenance of
Sewage Treatment Plants.
DISPOSAL OF SEWAGE AND SLUDGE
Standards for Disposal - Methods – dilution – Self purification of surface water bodies –
Oxygen sag curve – Land disposal – Sewage farming – Deep well injection – Soil dispersion
system - Sludge characterization – Thickening – Sludge digestion – Biogas recovery – Sludge
Conditioning and Dewatering – disposal – Advances in Sludge Treatment and disposal
1.Garg, S.K., Environmental Engineering Vol. II, Khanna Publishers, New Delhi, 2003.
2.Punmia, B.C., Jain, A.K., and Jain.A., Environmental Engineering, Vol.II,
LakshmiPublications, Newsletter, 2005.
1.Manual on Sewerage and Sewage Treatment, CPHEEO, Ministry of Urban Development,
Government of India, New Delhi, 1997.
2.Wastewater Engineering – Treatment and Reuse, Tata Mc.Graw-Hill Company, New