EV4005 Septage and Onsite Wastewater Treatment Technologies Syllabus:
EV4005 Septage and Onsite Wastewater Treatment Technologies Syllabus – Anna University PG Syllabus Regulation 2021
OBJECTIVE:
To understand on the principles and process designs aspects of onsite sanitation and decentralized wastewater management systems.
To gain competency in the process employed in sludge and septate management systems and the components comprising such systems, leading to the selection of specific process.
UNIT I URBANIZATION AND SANITATION
Sanitation Infrastructure in Urban India – Emerging Recognition of Faecal Sludge and Septage Management -Sanitation Service Chain -Faecal Sludge and Septage -Need for Faecal Sludge and Septage Management -Septage Management and Sewerage Systems -Components of Sanitation Value Chain- Approach to Septage Management in Cities
UNIT II DESLUDGING AND CONVEYANCE OF SEPTAGE
Planning for Emptying Services – Current Status of Emptying Services -Need for Periodic Cleaning of Septic Tanks – Prohibition of Employment as Manual Scavengers and their Rehabilitation Act Technologies for Desludging – Parameters for Assessing Conveyance Options – Demand Based Desludging – Schedule Based Desludging – Private Sector Participation.
UNIT III SEWAGE TREATMENT
Unit Operations and Processes – Selection of treatment processes — Onsite sanitation – Septic tank- Grey water harvesting- Decentralized sewage treatment – Design of septic tank with depression pit – DEWATS, Intermittent sand filters – Anaerobic filters – Waste stabilization ponds – Design and operation.
UNIT IV SLUDGE STABILIZATION
Objectives-Aerobic and Anaerobic Sludge digestion processes – Types of anaerobic digesters – design of Low rate and High rate digesters – Two stage digester-Aerobic digestion- Pure oxygen and thermopilic aerobic digestion – Chemical and Thermal stabilization process.
UNIT V REUSE AND LAND APPLICATION OF SEWAGE SLUDGE
Introduction- beneficial use-requirements and associated risks-handling and management-storage – operation aspects of transport and application of biosolids application land- Lagooning- Landfillingland farming-Composting-windrow composting -Vermicomposting -Laws and regulations on sludge management.
OUTCOMES:
CO1 Understand the sanitation value chain with challenges and need for addressing septage
CO2 Know about desludging and conveyance of septage
CO3 Plan and implement decentralized sewage treatment scheme
CO4 Understand technology options for sludge stabilization
CO5 Know about the requirements and associated risk while reusing sewage sludge
REFERENCES
1. Manual for “Sewerage and Sewage Treatment Systems” CPHEEO, Ministry of Urban Development, Government of India, New Delhi, 2013.
2. Metcalf & Eddy, INC, Wastewater Engineering – Treatment and Reuse, Fourth Edition, Tata McGraw-Hill Publishing Company Limited, New Delhi, 2017.
3. Septage management in urban India, National Urban Sanitation policy, Ministry of Urban Development Government of India, 2013.
4. National Policy on Faecal Sludge and Septage Management (FSSM) Ministry of Urban Development Government of India, 2017
5. A.F. Ismail, Takeshi Matsuura, Membrane Technology for Water and Wastewater Treatment, Energy and Environment, CRC Press, 2016
6. Michael D. Nelson, Chair, Operation of municipal wastewater treatment plants, Water environment federation, vol.2 liquid process.
7. Michael D. Nelson, Chair, Operation of municipal wastewater treatment plants, Water environment federation, vol.1Management and support systems, sixth edition.
8. Arceivala S.J., and Asolekar S.R “Wastewater Treatment for Pollution Control and reuse “McGraw Hill , third Edition, New Delhi, 2007.