JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• To discuss the characteristics of wastewater and their impacts on disposal.
• To estimate quantity of wastewater and design sever elements.
• To identify and design suitable wastewater treatment units

Course Outcomes

At the end of the course, the student will be able to assess properties of

sludge and plain suitable disposal methods

UNIT - I

Introduction– Sewage Systems sewage and storm water estimation – time of concentration – storm water overflows combined flow – characteristics of sewage – examination of sewage – B.O.D. – C.O.D. equations.

UNIT - II

Design of sewers – shapes and materials – sewer appurtenances manholes – inverted siphon – catch basins – flushing tanks – ejectors, pumps and pump houses – house drainage – components requirements – sanitary fittings-traps – one pipe and two pipe systems of plumbing. Sewage maintenance, sewage construction sewage objectives of Treatment units

UNIT - III

Layout and general outline of various units in a waste water treatment plant – primary treatment design of screens – grit chambers – skimming tanks – sedimentation tanks

UNIT - IV

Principles and design of biological treatment – trickling filters – standard and high rate- Filters – ASP – ASP modification – Aeration. Construction and design of oxidation ponds – Oxidation ditches – Sludge Treatment. Other biological treatment with oxidation ponds, oxidation ditches lagoons

UNIT - V

Sludge digestion tanks –design of Digestion tank –Factors affecting sludge digestion - Sludge disposal by drying – septic tanks - working principles and design – soak pits. Ultimate disposal of waste water – self purification of rivers – Sewage farming.

TEXT BOOKS:

• 1. Water Supply Engineering, Vol. 1, waste water Engineering, Vol. II, B.C.Punmia, Ashok Jain & Arun Jain, Laxmi Publications Pvt.Ltd, New Delhi Page 20 of 33
• 2. Water Supply Engineering Vol.1 & Waste water Engineering Vol. II, P.N. Modi, Standard Book Publishers, New Delhi.

REFERENCES:

• 1. Water and Waste Water Technology by Mark J Hammar and Mark J. Hammar Jr.
• 2. Waste water treatment pollution control and Reuse by Solij Asceivalar, Shyam R Asolekar, Mc Graw hills Publisher 2015.
• 3. Waste water engineering by Metcalf and Eddy. McGraw-Hills Higher Education
• 4. Theory & Practice of Water & Wastewater Treatment by Ronald L Droste, John Wiley & Sons India Publishers. Page 21 of 33