20-r. m kant, why to treat the waste water
TRANSCRIPT
![Page 1: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/1.jpg)
![Page 2: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/2.jpg)
![Page 3: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/3.jpg)
Different technologies fort t t t twastewater treatment
1. ASP (Activated Sludge Process)2. MBBR ( Moving Bed Bio Reactor)3 SBR (Sequential Batch Reactor)3. SBR (Sequential Batch Reactor)4. UASB (Upflow Anaerobic Sludge Blanket)5. MBR (Membrane Bio Reactor)6 WSP (W t St bili ti P d)6. WSP (Waste Stabilization Pond)
![Page 4: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/4.jpg)
Comparison among Wastewater TreatmentWastewater Treatment
TechnologiesSr.N
o. Assessment Parameter/Technology ASP MBBR SBR UASB+ASP MBR WSP
Overall HRT. (Through the entire plant) 16-20 h 8-10 h 16-18 h 16-18 h 8-12 h 8-15 h
1 Performance parameters
Effluent BOD, mg/L <20 <30 <10 <20 <5 <40
Effluent SS mg/L <30 <30 <20 <30 <5 <100
Faecal Coliform, log unit upto 3<4 upto 2<3 upto 3<4 upto 2<3 upto 5<6 upto 2<3
T N Removal Efficiency % 10 20 10 20 70 80 10 20 70 80 10 20T-N Removal Efficiency % 10-20 10-20 70-80 10-20 70-80 10-20
2 Average Capital Cost, Rs. Lacs/MLD 80 80 80 80 400 30Civil Works, % of capital costs 60 40 30 65 20 90
E & M works, % of capital costs 40 60 70 35 80 10
3 Average Aera, Required m2 / MLD 800 400 400 800 200 6000
![Page 5: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/5.jpg)
Sr.No.
Assessment Parameter/Technology ASP MBBR SBR UASB+ASP MBR WSP
4 Operation & Maintenance Costs
(i) Energy Costs(i) Energy Costs
Avg. Technology Power requirement, kWh/d/MLD 180 200 170 120 300 2
Avg. Non-Technology Power requirement, kWh/d/MLD 4 2.5 2.5 4.5 2.5 2.5
Total Daily Power Requirement, kWh/d/MLD(avg) 184 202.5 172.5 124.5 302.5 4.5
Daily Power Cost (@ Rs. 4.0/kWhr), Rs./MLD/hr 31 34 29 21 50 0.75
Yearly Power Cost, Rs. Lacs PA/MLD 2.65 2.92 2.48 1.79 4.36 0.06
(ii) Repair cost
Civil works per annum, as % of civil works cost 1 1 1 2 1
E&M works, as % of E & M works cost 3 3 2.5 3.5 3
Civil works maintenance, Rs. Lacs PA/MLD 0.8 0.8 0.34 1.6 0.3
E & M works Maintenance, Rs. Lacs 2.4 2.4 2 2.8 0.9
A l i R L 3 2 3 2 2 34 4 4 1 2Annual repairs costs, Rs. Lacs 3.2 3.2 2.34 4.4 1.2
(iii) Recurring Cost, (Chemicals etc), Rs. Lacs PA/MLD 0.3 0.4 0.2 0.5 0.2
(iv) Manpower O & M cost
Manager, Rs. Lacs PA 4.8 4.8 4.8 4.8 4.8
Chemist/Engineer, Rs. Lacs PA 2.4 2.4 2.4 2.4 2.4
Operators, Rs. lac PA 1.44 1.44 1.44 1.44 1.44
Skilled Technicians, Rs. lacs PA 1.08 1.08 1.08 1.08 1.08
Unskilled personal Rs PA 0 96 0 96 0 96 0 96 0 96Unskilled personal, Rs. PA 0.96 0.96 0.96 0.96 0.96
Manpower Reqd. & their costs, Rs. lacs PA/MLD 9.96 8.12 8.03 9.96 50.00 5.88
(v) Total annual O & M costs, Rs. lacs PA/MLD 16.11 14.64 13.05 16.65 50.00 7.67
![Page 6: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/6.jpg)
Sr.No. Assessment Parameter/Technology ASP MBBR SBR UASB+ASP MBR WSP
Avg. Land Cost Assumed, Rs. lacs/m2 0.01 0.01 0.01 0.01 0.01 0.01
Unit Land Cost, Rs. Lacs/MLD 8.00 4.00 4.00 8.00 2.00 60.00
Unit Capital Cost including land cost, Rs. lacs/MLD 88.00 84.00 84.00 88.00 402.00 90.00
Rate of compound interest, (adopted),% per year 10.00 10.00 10.00 10.00 10.00 10.00
5 Treatment cost, Rs. /KL 7.30 6.89 6.46 7.44 28.10 3.18
6 Unit life cycle cost for 15 years, Rs. lacs/MLD 210.53 195.35 183.27 214.66 214.66 148.3295
![Page 7: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/7.jpg)
SBR TechnologySBR Technology (Sequential Batch Reactor)
• SPECIALITIES :
I b ilt E li ti ‐ In‐built Equalization. ‐ BOD/ COD/ SS Removal.‐ Settling.g‐ Decanting.‐ Nitrification.
f‐ Denitrification.‐ Bio‐P removal.‐ All process done in single stage.All process done in single stage.
![Page 8: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/8.jpg)
Quality of treated Effluent
Parameter. SBR Tech. Conventional Tech.
BOD < 10 < 30
COD < 50 < 250COD < 50 < 250
TSS < 20 < 30
NH3 – N < 2 No Treatment.
P < 1 No Treatment.
![Page 9: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/9.jpg)
BENEFITS
‐ 50 % Reduction in power consumption.‐ 50 % Reduction in land requirement.‐ Fully automatic, Computerized ( PLC/ SCADA)‐ Much higher plant life due to excellent material.L i ‐ Low maintenance cost.
‐ Treated effluent can be used for Horticulture/ Industries.
![Page 10: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/10.jpg)
PROCESSStep 1 : The raw wastewater is filled in tank. Aeration isdone simultaneously for a pre‐determined period to aeratethe effluent along with biomassthe effluent along with biomass.
• Step 2 : After aeration cycle, the biomass settles underperfect settling conditionsperfect settling conditions.
• Step 3 : Once settled the supernatant is removed from thetop using decanter. Solids are wasted from the tank duringp g gdecanting.
Above steps in sequence constitute a cycle.
![Page 11: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/11.jpg)
CYCLE DETAILSCYCLE DETAILS
![Page 12: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/12.jpg)
REACTORREACTOR
DECANTER SELECTOR
INLET
OUTLET
SLUDGE PUMPDIFFUSER BIOMASS
![Page 13: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/13.jpg)
AUTOMATIONAUTOMATION
![Page 14: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/14.jpg)
CHARACTERISTICS OF COMPONENTS
Complete Decanting device in stainless steel
No impact of high TDS waters
No corrosion
No maintenance
Minimum 30 years equipment life
World class aesthetic look
![Page 15: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/15.jpg)
REACTOR TANKSREACTOR TANKS
![Page 16: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/16.jpg)
FILL & AERATIONFILL & AERATION
![Page 17: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/17.jpg)
SETTLINGSETTLING
![Page 18: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/18.jpg)
DECANTINGDECANTING
![Page 19: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/19.jpg)
CHLORINE CONTACT TANKCHLORINE CONTACT TANK
![Page 20: 20-R. M Kant, Why to treat the waste water](https://reader031.vdocuments.net/reader031/viewer/2022012512/618b6a27456ee652e0363223/html5/thumbnails/20.jpg)
THANK YOU