The presentation gives a short glimps of how the project develops from the tendering stage to construction phase

1. Project Phases (Environment)
By Harush D P
Process Design Engineer
harush.24u@gmail.com

2. Environment
• Comprises of our surroundings
• Air
• Water
• Soil
• others

3. Pollution
 Human activities
 Deforestation
 Industrialization
 Uncontrolled Discharges

4. Water Treatment
 Domestic sewage
 Industrial Effluent
 Drinking water treatment

5. Type of treatment
 Primary treatment
 Secondary
 Aerobic
 Anaerobic
 Anoxic
 Tertiary

6. Projects
 Drinking Water Treatment Projects
 Jackwell, pipeline and ESR construction for water supply
 Water supply Networking
 Sewage Treatment Plants
 UGD for cities
 Industrial Effluent Treatment projects
 CETP
 Operation and Maintenance

7. Tender
 Prepare tender document by reputed consultants
 Government Bodies call for tenders
 Specify Requirements
 Floats tender via various Media
 Calls for bidding

9. Tender Contents
 Important Dates
 Scope of work
 PRQ
 Pre-bid Details
 Technical Details
 Financial details (project Estimated cost)
 Bidding process
 Cost Breakups

13. Working
 Process Design (units its sizing and Process flow drawing)
 Civil Estimation ( Quantities)
 Mechanical Estimation ( Equipment's, Pipes, Valves,)
 Instrumentation Estimation ( Scada Design and Estimation)
 Electrical Estimation ( Power Requirement, Costing)
 Operation and Maintenance ( Labor, Chemical, Power Requirement Etc)
 Over all cost calculation
 Cash flow preparation
 Construction schedule preparation.
 E-Portal Submission of Documents and EMD

14. Notifications
 After successful submission check for regular notification.
 Date of opening of Technical BID.
 Date of opening of Financial BID.
 Lowes BID qualification.
 Award of contract.

15. Project Phases
 Preparation of Technical Documents
 Getting approval from consultant and client.
 Process Design calculations
 Mass Balance
 Hydraulic Design Calculations
 Drain Calculations
 Plant Water Utility
 Datasheet for mechanical Equipment's
 Structural Design calculations

16. Drawing Approvals
 PFD
 Layout
 Hydraulic Flow Drawing
 Mass Balance
 P&ID
 Mechanical GA
 Equipment GA
 Civil GA
 Structural Drawing

17. Mean while at site
 Topographical Survey Completion
 Site Mobilization
 Site Clearing
 Compound Structure
 Drainages
 Excavations

18. Site Progress
 After approval of drawings construction commences.
 As per Planned Construction Schedule.
 Getting Release of RA Bills as per the progress of work.
 Hydraulic Testing of Structures
 Mechanical Equipment's Installations
 Testing of Equipment's
 Completion of work and trial run

19. Operation and Maintenance
 Flow measurement
 Inlet Parameter Analysis
 Stabilize the STP
 Culture Development
 Chemical Dosing
 Achievement of said outlet parameter
 Trouble shooting

20. Design Glimpse
 Analyze the type of effluent to be treated
 Collect population density of area and sources of waste generation
 Collect Flow quantity (hydraulic Loading)
 Collect Effluent Quality parameters (Organic Loading)
 Analyze and plan process design units
 Collect standards required from Standard Manuals (CPHEEO)
 Collects Requirements Specified by Client
 Collect Area Available for construction and inlet point of effluent

21. Designing
 A sewage Treatment plant will be designed with following flow
 SPS (sewage Pumping Station)
 MPS (Main Pumping Station)
 STP (Sewage Treatment Plant)
 Disposal of Treated Sewage
 Treatment Of Sludge and its Disposal

22. MPS (Main Pumping Station)
 Why ?
 Units
 Inlet chamber
 Course Screen Channel
 Wetwell
 Pumps and pumping main

23. STP
 Receives Flow from MPS/ISPS
 Units
 Inlet chamber
 Fine screen Channel
 Grit Chamber
 Flow Measurement
 Secondary Treatment unit (SBR, ASP, MBBR,)(Digester, Trickling Filter etc)
 Clarifier
 Disinfection unit (CCT)
 Disposal or Tertiary treatment

24. Sludge Treatment
 Sludge Sump
 Gravity Sludge Thickener (GST)
 Sludge Digester/Sludge Holding Tank
 Gas Holder, Power Generation units
 Centrifuge/Belt Filter
 Sludge Cake Disposal

25. Wet well
construction
Illustrative
photos

26. Digester lamella clarifier, Biotower

27. Aeriation Tank

28. Anaerobic tanks

29. Complete plant, Digesters and gas holders

30. Thank you