Sewage Treatment Plant

Design and construction of STP on college campus

1. Sewage Treatment Plant MAJOR PROJECT PRESENTATION Submitted by: Deepak Kumar Samal Birakishor Kujur Jiten Patra Guided by: Anup Kujur Dr. Joygopal Jena Siddharth Mohanty Gautam Sagar Kanchan Kanti Munda Akash Oraon Anuj Sundar Patel Rajib Lochan Bishi Aman Kumar Naik Abinash Mohanty Manaswee Nayak Abhinash Das

2. FLOW OF PRESENTATION Introduction Literature Review Scope of the Project Methodology Plan Schematic Diagram Detailed Drawing Design Material used (civil works) Equipments, Chemicals, Expenditure (Mechanical Works) Working procedure Conclusion References

3. Introduction Water is the most common liquid on Earth. But, only 0.01% of total water accessible for consumption. Effective use of water becomes pivotal. In such scenario wastewater treatment becomes very significant. Wastewater treatment is the process that removes the majority of the contaminants from wastewater or sewage and produces a liquid effluent suitable for disposal to the natural environment. As the waste water cannot be discharged in the natural environment due to its hazardous nature, its treatment employs certain physical chemical and biological processes for producing an effluent stream of relative purity.

4. Literature Review AWWA Research Foundation prepared series of reports with a comprehensive literature review on nature and solutions of water treatment plant waste disposal problems in 1969. Concurrently effort was made to determine the type and quantities of waste produced, the characteristics of the wastes, and the existing methods of waste disposal in Illinois. Presence of water treatment plants in India : In India, only five metro cities have treatment capacity close to 100% of their sewage generation, these are Hyderabad, Vadodara , Chennai, Ludhiana and Ahmedabad . Delhi has the largest sewage treatment capacity in absolute terms, but it is only about 60% its needs, while Mumbai has the second largest treatment capacity in absolute terms but meets only 80% of its needs. Almost all other major metropolitan cities have treatment capacities below 50% of their sewage generation. A 2010 report by the New Delhi based Center for Science and Environment (CSE) put the effective treatment capacity at only 19% of total sewage generation3 compared to an installed capacity of 30%.

5. Efforts to expand municipal sewage treatment Acknowledging that cities cannot tackle the sewage problem alone, the central government launched the Ganga Action Plan. Subsequently, Action Plans for other rivers were also taken up and separate programs were merged under the National River Conservation Plan (NRCP). Framework for wastewater reuse The only directly relevant policy for wastewater reuse is the CPCB standards for land application of treated wastewater for irrigation. While the general discharge standards for discharge into surface waters cover 33 parameters, those for land application for irrigation only cover 8. In addition, for each industry specific discharge standard, there are standards for land application.

6. SCOPE OF THE PROJECT With UN reports warning of water stress being faced by the two thirds of global population by 2025, the scope of waste water treatment is a large one. Wastewater treatment plants are going to see being used in different technical setups. Sewage treatment plants Tertiary treatment Agricultural wastewater treatment plants Leachate treatment plants These waste water treatment plants can be installed in numerous setups which may be industrial, institutional, in human colonies as well as agricultural lands until there is requirement for safe disposal of waste water generated.

7. METHODOLOGY PLAN

8. METHODOLOGY SCHEMATIC DIAGRAM

9. METHODOLOGY DETAILED DRAWING

10. ESTIMATION ABSTRACT ESTIMATE

11. Sl.No Particular Item Qty Unit Rate in Rs. Amount in Rs. 1. Earthwork in hard soil 142.46 Cum @ 279.69 39845.23 2. Filing with sand in foundation & plinth 4.68 Cum @ 692.50 3241.59 3. Brick flat soling over sand layer in 1:6 mortar 23.41 Sqm @ 30.70 718.53 4. CC (1:3:6) with 4cm size hard granite metal 2.34 Cum @ 5056.84 11835.53 5. RCC work M-25 with 20mm chips @ a. Base 5.85 Cum @ 6497.81 38020.31 b. Wall 13.92 Cum @ 13124.7 182630.62 c. Slab 2.10 Cum @ 11166.1 23415.38 6. Supplying fitting & HYSD bar reinf complete 30.11 Qntl @ 6042.83 181961.47 7. 12mm thick cement plaster(1:6) 46.31 Sqm @ 140.54 6507.7 8. 12mm thick cement Plaster(1:4) 76.23 Sqm @ 164.7 12554.26 9. Manhole & Cover Manhole 4 Nos @ L.S. L.S. Cover 2 Nos @ Total amount Rs. 500730.64 Add contingency 1% Rs. 5007.3063 Grand Total Rs. 505737.94

12. Quantity Estimate

13. DESIGN Effluent Quantity :- The generation of effluent has been considered from toilets, pantry, rooms etc. and office as well, if any. Design flow considered - 15 cum/day (maximum) Raw Effluent Quality :- Raw effluent characteristic is considered to have the following characteristic: pH - 7.5 – 8.5 BOD, mg/l - 250 - 300 (max) COD, mg/l - 450 - 500 (max) TSS, mg/l - 300 - 350 (max) O&G, mg/l - 30 – 50 (max)

14. Treated Water Quality :- The treated water characteristics as per P.C.B norms will be as follows: pH - 6.5 – 7.5 BOD, mg/l - < 20 COD, mg/l - <150 TSS, mg/l - < 10 O&G, mg/l - < 10 We do not stand guarantee for any other parameters except the above as per the norms of PCB. C. Design Basis : High Rate Flexible Digester (HRFD) method has been considered for treatment of the sanitary wastewater or in other words the treatment will follow the principle of Anaerobic Sludge Blanket Process. D. T reatment Methodology : The removal of BOD, TSS, Bad Odour and E-Coli will be done in proposed anaerobic tank followed by filter by dosing of EM in a proper dosing pattern. The bacterial strains of EM will form a sludge blanket at the bottom of the tank within 20–25 days time after which the load on the tanks will come down substantially. The clear water then overflows from the top of the tank to the Treated Effluent Sump from where it will be pumped through filters to the final discharge point.

15. E. Treatment Programme of EM : For initial stabilization we recommend 10 liters followed by 4 liters per month as preventive maintenance dose. Progressive stages of developments after of EM. Progressive Stages : Within 3 to 7 days of starting the EM programme , bad odor will get reduced significantly. Commencing from the 2 nd week onwards the BOD, TSS, E-Coli values will reach an optimum level of treatment. By 4 th week BOD, TSS etc. will start achieving the desired levels of pollution parameters.

16. EQUIPMENT, CHEMICALS & SPECIFICATIONS SLNo . Civil Description a. Bar Screen Chamber Dimension (L x W x Ht), m Construction 01 No. 1.0 x 1.0 x 1.05 RCC b. Collection Sump Capacity Dimension (lx w x SWD), m Construction 01 No. 2.6 Cum 1.0 x 2.0 x 1.3 RCC

17. c. Anaerobic Tank Capacity Dimension (L x W x SWD), m Construction 01 No. 16.2 Cum 4.05 x 2.0 x 2.0 RCC d. Filter Feed Tank Capacity Dimension (L x W x SWD), m Construction 01 No. 4 Cum 1.0 x 2.0 x 2.0 RCC NOTE: a) Invert level at entry to Bar Screen Chamber has been considered as (-0.7) m below existing G.L. Area Required – 6.95m x 2.5 m

18. Few Snaps from the Under construction Sewage Treatment Plant (Civil Works):

19. Mechanical & Electrical : a. Coarse Bar Screen M.O.C 01 No. Mild Steel Epoxy Painted b. Transfer Pump Type Capacity Head Power Make 02 Nos. (1w+1s) Dry Motor Submersible 1.5 cum/hr 6 MWC 1 HP (each) Kirloskar /Equiv .

20. c. Filter Feed Pump Type Capacity Head Power Make 02 Nos. (1w+1s) Open well submersible 1.5 cum/hr 23 MWC 1 HP (each) Kirloskar/ M&P/ Equiv. d. Pressure Sand Filter Capacity Diameter Height Construction Media 01 No. 1.5 Cum/Hr (max) 450 mm 1500 mm FRP Sand & Graded Gravel

21. e. Activated Carbon Filter Capacity Diameter Height Construction Media Make 01 No. 1.5 Cum/Hr (max) 450 mm 1500 mm FRP Graded Gravel & Activated Carbon Ultra pure/Equiv. f. Piping & Valves Make of Pipes & Valves 01 Lot PVC & PP (Ball Valve) g. Electrical Cabling Type of Cable 01 Lot. 3 core, 4 sqmm , Al armoured Al Conductor, PVC shield , PVC insulated

22. i . Starter Panel No . of Feeders Type 01 No. 4 feeder Non Compartmentalised , Front open, Bottom Entry with energy meter, MCCB etc j. Microorganism EM bacteria 20 lit. Structure Dimension Pcc L 23ft*W12ft Foundation Bed L 22ft*W10ft Wall L20ft*w6.6ft

23. WORKING PROCEDURE There are several waste water treatment technologies that are : 1. Wastewater Collection 2. Odor Control 3. Screening 4. Primary Treatment 5.Secondary Treatment 6.Bio Solids Handling 7.Disinfection 8.Sewage Treatment

24. CONCLUSION:- The waste water have high BOD, Turbidity and total dissolved solids. Our aim is to make this water safe for disposal in natural environment or to use it for other purposes. The DO content of waste water recorded is found to be low value due to the presence of higher organic matter and an increased BOD and COD. This increased BOD and COD value indicate the polluted nature of the discharge. We’ve to treat it at least below to 20ppm. Higher quantity of inorganic nutrients like nitrogen & phosphorus was found present in the waste water. The waste water has a Ph range of 7.5-8.5 Most Probable Number value was higher again indicating the polluted nature of the waste water. Disposal without any treatment in to fresh water body may impose the danger of eutrophication as well as serious problems of health and hygiene. Long term leaching of waste water may alter the soil characteristics as well as may influence the quality of ground water. The treated wastewater can be utilized for purposes like gardening, washing vehicles and cleaning garages, etc.

25. REFERENCES

26. Thank You