EN8592 – NOTES & QP
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EN8592 – SYLLABUS
UNIT I PLANNING AND DESIGN OF SEWERAGE SYSTEM
Characteristics and composition of sewage — population equivalent -Sanitary sewage flow estimation — Sewer materials — Hydraulics of flow in sanitary sewers — Sewer design — Storm drainage-Storm runoff estimation — sewer appurtenances — corrosion in sewers — prevention and control — sewage pumping-drainage in buildings-plumbing systems for drainage — Rain Water ting.
UNIT II PRIMARY TREATMENT OF SEWAGE
Objectives — Unit Operations and Processes — Selection of treatment processes — Onsite sanitation — Septic tank- Grey water harvesting — Primary treatment — Principles, functions and design of sewage treatment units — screens — grit chamber-primary sedimentation tanks — Construction, Operation and Maintenance aspects.
UNIT III SECONDARY TREATMENT OF SEWAGE
Objectives — Selection of Treatment Methods — Principles, Functions, — Activated Sludge Process and Extended aeration systems -Trickling filters– Sequencing Batch Reactor(SBR) — Membrane
Bioreactor — UASB — Waste Stabilization Ponds — — Other treatment methods -Reclamation and Reuse of sewage — Recent Advances in Sewage Treatment — Construction, Operation and Maintenance aspects.
UNIT IV DISPOSAL OF SEWAGE
Standards for– Disposal — Methods — dilution — Mass balance principle — Self purification of river- Oxygen sag curve — deoxygenation and reaeration — Streeter–Phelps model — Land disposal —
Sewage farming — sodium hazards — Soil dispersion system.
UNIT V SLUDGE TREATMENT AND DISPOSAL
Objectives — Sludge characterization — Thickening — Design of gravity thickener- Sludge digestion — Standard rate and High rate digester design- Biogas recovery — Sludge Conditioning and Dewatering — Sludge drying beds- ultimate residue disposal — recent advances.