Environmental Engineering-II for SPPU 15 Course (BE - I - Civil- 401001) (Decode)

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Unit - I Sewage quantity : Collection and conveyance of sewage, sources of sewage, variations in sewage flow, Flow quantity estimation(sewage and strom water quantification), Design of strom water system, Design of circular sanitary sewers. Pumping of sewage, necessity, location. Effect of change of life style on sewage quality. Characteristics of sewage : Methods of sampling, Physical, chemical and biological characteristics, Quality requirements for disposel and recycle / reuse of sewage as per CPCB norms. Stream sanitation : Self purification of natural streams, river classification as per MoEF and CC, Govt. of India; Oxygen Sag Curve, Streeter - Phelps equation and terminology (without derivation and numerical). National river cleaning plan. (Chapter - 1) Unit - II Sewage treatment : Pollution due to improper disposal of sewage, Introduction to sewage treatment, preliminary, primary, secondary and tertiary treatment, Unit operation and Process flow diagram for sewage treatment, Theory and design of screen chamber, Grit Chamber and Primary sedimentation tank as per the Manual of CPHEEO. (Chapter - 2) Unit - III Theory and design of secondary treatment units : Introduction to unit operations and processes for secondary treatment. Principles of biological treatments, role of microorganism in wastewater treatment. Activated sludge process : Theory and design of ASP, sludge volume index, sludge bulking and control, modifications in ASP. Operational problems and maintanance in ASP, Concept of sequential batch reactor (SBR). Trickling filter : Biological principle, different T.F media and their characteristics, design of standard rate and high rate filters using NRC formula, single stage and two stage filters, recirculation, ventilation, operational problems, control measures, theory of rotating biological contractors. (Chapter - 3) Unit - IV Low cost treatment methods : Oxidation pond : Bacteria – algae symbiosis, design of oxidation pond as per the manual of CPHEEO, advantages and disadvantages of oxidation ponds. Aerated lagoons : Principle, aeration method, advantages and disadvantages of aerated Lagoons, design of aerated lagoon. Introduction and theory of Phytoremediation technology for wastewater treatment. Introduction and theory of root zone cleaning system (Chapter - 4) Unit - V Onsite Sanitation Treatment systems : Septic tank, up-flow anaerobic filter. and Package sewage Treatment Plant- Working principle, advantages and disadvantages. Introduction to MBR, MBBR and FMBR. Anaerobic digester : Principle of anaerobic digestion, stages of digestion, bio - gas production its characteristics and application, factors governing anaerobic digestion, Dewatering of sludge by gravity thickener, sludge drying bed, decanters. Methods of sludge treatment and disposal, advantages and disadvantages. Up-flow Anaerobic Sludge Blanket (UASB) Reactor - Principle, advantages and disadvantages. (Chapter - 5) Unit - VI Industrial waste water treatment : Equalization and neutralization. Application of preliminary, primary and secondary treatment for industrial waste water as per the CPCB norms. Sources of waste water generation from manufacturing process, characteristics of effluent, different methods of treatment and disposal of effluent for the following industries: Sugar, dairy and distillery. Discharge standards as per CPCB norms. Recycle and reuse of treated wastwater : Gradening, sewage farming, W.C. Flushing, reuse in industry. (Chapter - 6)

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Author: [Technical Editorial Team] Pages: 192 Edition: 2020 Vendors: Technical Publications