11. 1122
DESIGN BASIS
The sewage Treatment Plant designed to treat the raw sewage in a single
stage automatic C Tech Plant, based on Cyclic Activated Sludge Technology.
A. Inlet Effluent Parameters
IItteemm UUOOMM VVaalluueess
FFlloowwss MMLLDD
MM33//ddaayy
4455
4455000000
PPeeaakk FFaaccttoorr 22..2255
PPeeaakk FFllooww MMLLDD
MM33//ddaayy
110011..2255
110011225500
PPHH 66..55--77..55
TToottaall SSuussppeennddeedd SSoolliiddss MMgg//ll 225500
BBOODD MMgg//ll 220000
CCOODD MMgg//ll 440000
12. 1133
DESIGN BASIS
The plant is designed to produce the following Outputs for which a performance
guarantee is provided.
During commissioning trail for the plant, these parameters will be checked
and validated .
B. Outlet Characteristics
IItteemm UUOOMM VVaalluueess
PPHH 66..55--77..55
TToottaall SSuussppeennddeedd SSoolliiddss mmgg//ll ≤≤ 1100
BBOODD mmgg//ll ≤≤ 1100
CCOODD mmgg//ll ≤≤ 110000
SSlluuddggee ggeenneerraatteedd KKgg//ddaayy 77116666..2255
13. 1144
TREATMENT
PHILOSOPHY
Receiving of Sewage
Raw sewage will be received into a Stilling
Chamber from where it will be taken into
downstream Fine Screens.
14. 1155
• Fine Screening Channels
• Adequate Nos. of Mechanical along with Manual
(standby) Fine Screens shall be provided
upstream of treatment units for fine screening of
sewage. The Fine Screens shall screen out most
of the floating and oversized material more than
6mm size such as plastic debris, weeds, paper,
cloth, rags etc which could foul the downstream
treatment unit. The Fine Screens shall be inclined
Bar Screen of stainless steel flats. The screenings
shall be dropped on a Conveyor provided above
the top of the screen channel. The screening
material as collected will drop automatically into a
wheelbarrow for its disposal.
15. 1166
• DE- Gritting
• Screened Sewage will gravitate to Grit
Separator Tank for removal of grit and
small inorganic particulate matter of
specific gravity above 2.65 and particle
size above 150 microns.
16. SBR/Cyclic Activated sludge process
Primary treated sewage shall be fed into the
Cyclic Activated Sludge Process/SBR Process
Basins for biological treatment to remove BOD,
COD and Suspended Solids.
C Tech is a CYCLIC ACTIVAED SLUDGE
TREAMENT process. it provides highest
treatment efficiency possible in a single step
biological process.
1177
17. • The C TECH System is operated in a
batch reactor mode. This eliminates all the
inefficiencies of the continuous processes.
A batch reactor is a perfect reactor, which
ensures 100% treatment. Four modules
are provided to ensure continuous
treatment. The complete process place in
a single reactor, within which all biological
treatment steps takes place sequentially.
1188
18. 1199
• No additional setting unit, Secondary
Clarifier is required.
• The complete biological operation is
divided into cycles. Each cycle is of 3-5
hrs duration, during which all treatment
steps take place.
19. 2200
Explanation of Cyclic Operation
A basic cycle comprise:
Fill Aeration (F/A)
Settling (S)
Decanting (D)
These phases in a sequence constitute a cycle,
which is then repeated.
27. C Tech is the most advanced Cyclic Effluent Treatment
Technology in the Word.
The technology is based on Activated Sludge Process
adapted to Sequential Batch Reactor Technology.
This technology was developed in the USA in the 80’s and
has been adopted worldwide since 1990’s.
There are more than 200 installations worldwide based on
this technology.
2288
ADVANTAGES OF C TECH
PROCESS
28. 2299
• Excellent Quality
of Treated Effluent
• The outlet
characteristics
obtained out of C
Tech as compared to
other technologies
are:
PPAARRAAMMEETTEE
RR
CC
TTEECCHH
CCOONNVVEENN
TTIIOONNAALL
BBOODD ≤≤ 1100 ≤≤ 3300
CCOODD ≤≤ 110000 ≤≤ 225500
TTSSSS ≤≤ 1100 ≤≤ 3300
29. 3300
The treated sewage out of C Tech is 6 times
better than any conventional treatment. The C
Tech plant has an inbuilt mechanism for Nitrification, DE
nitrification and Biological Phosphorous Removal to
degrade nutrient like Total Nitrogen (TN) and
Phosphorous (TP). In case the treated sewage is
discharged into a lake body, it is critical to
have TN < 5 ppm and TM < 1 ppm, as otherwise
these nutrients lead to massive algae / other
aquatic plants growth which leads to depletion of the
dissolved oxygen in the lake and subsequent
cause extensive damage to the marine
ecology.
30. • The C Tech process ensure removal of all nutrients to
acceptable levels in the single stage biological process.
• 50% reduction in POWER Consumption
• C Tech uses 50% less power to get 6 times better outlet
characteristic. Hence the plant has a payback period.
• 50% reduction in Land Requirements
• The main problem in Cities is the availability of Land. C
Tech uses 50% less land area compared with other
conventional technologies, thus saving huge amounts on
purchase of land.
3311
31. • Variable Design
• The complete system is capable to handle
variable flow and load conditions. The system is
self adjusting in nature and automatically
adjusts to the new feed conditions by changing
cycle times, aeration intensity etc. each batch
of sewage is analyzed wrt bio degradability and
optimum treatment is automatically given to
ensure minimum utilization of power and
energy.
3322
32. 3333
Fully Automatic, Computerized,
Internet Controlled
C Tech is fully automatic, computer
controlled. This does not require any
operator attention. The plant can be
operated from anywhere in the world through
Internet. This results in huge saving on
manpower and operating costs.
33. • Excellent Material of Construction
• C Tech uses all underwater mental parts in
SS and non metallic parts in imported PVC.
The diffusers are in EPDM and all Pumps,
Instruments etc. are from the best
manufactures worldwide. This result in a
plant life 6 times better than conventional
plants and very little maintenance costs.
3344
34. 3355
Proved World Wide
C Tech has installations in almost all
countries in the worlds, Including, USA, UK,
Germany, France, Austria, China, Russia,
Australia, Thailand, Malaysia and most
importantly India.
The first C Tech plant is already operational
in India at Panjim, Goa of capacity 28 MLD
(Peak Flow) and 12.5 MLD (Average Flow).
35. • Capital and Operating Cost
• C Tech requires the lowest investment
and operating costs as compared to any
other technology, when compared with
respect to outlet parameters, MOC, Land
required and Power consumend.
3366
46. 4477
List of C-Tech Plants in India
Name of User Location Capacity Sector Present Status
Indore Municipal Corporation Indore 245 MLD Sewage Under construction.
Madurai Municipal Corporation Avaniapuram 125 MLD Sewage Under construction.
Thane Municipal Corporation Kopri 120 MLD Sewage Under construction.
Punjab Water Supply and Sewerage
Ludhiana 105 MLD Sewage Under construction.
Board
Navi Mumbai Municipal Corporation Nerul 100 MLD Sewage Operational
Navi Mumbai Municipal Corporation Vashi 100 MLD Sewage Operational
Navi Mumbai Municipal Corporation Airoli 80 MLD Sewage Operational
City Infrastructure Development Corpn.
(CIDCO)
Kamothe 85 MLD Sewage Under construction.
City Infrastructure Development Corpn.
(CIDCO)
Kharghar 70 MLD Sewage Under construction.
Coimbatore Municipal Corporation Ukkadam 70 MLD Sewage Under construction.
Pimpri Cinchwad Municipal Corporation Charholi 60 MLD Sewage Under construction.
Ghaziabad Development Authority Indrapuram 56 MLD Sewage Under construction.
Ghaziabad Development Authority Govindpuram 56 MLD Sewage Under construction.
Ghaziabad Development Authority Dudhera 56 MLD Sewage Under construction.
Hyderabad Metropolitan Water Supply
and Sewerage Board
Attapur 51 MLD Sewage Under construction.
47. 4488
New Okhla Industrial Development
Authority
Noida 50 MLD Sewage Under construction.
Punjab Water Supply and Sewerage
Board
Ludhiana 50 MLD Sewage Under construction.
Madurai Municipal Corporation Sakkimangalam 45.7 MLD Sewage Under construction.
Pune Municipal Corporation Mundhwa 45 MLD Sewage Operational
National Building Construction Corpn
Faridabad 45 MLD Sewage Under construction
Ltd
Coimbatore Municipal Corporation Nanjundapuram 40 MLD Sewage Under construction.
Pimpri Cinchwad Municipal Corporation Kasarwadi 40 MLD Sewage Under construction.
New Okhla Industrial Development
Noida 35 MLD Sewage Under construction.
Authority
New Okhla Industrial Development
Authority
Noida 33 MLD Sewage Under construction.
Pimpri Cinchwad Municipal Corporation Akurdi 30 MLD Sewage Under construction.
Pune Municipal Corporation, Pune Baner 30 MLD Sewage Under construction.
Pimpri Cinchwad Municipal Corporation Cinchwad 30 MLD Sewage Operational
City Infrastructure Development Corpn.
Ghansoli 30 MLD Sewage Under construction
(CIDCO)
Uttaranchal Peyjal Nigam Haridwar 27 MLD Sewage Under construction.
48. 4499
1. City Infrastructure Development Corpn.
(CIDCO)
Kharghar 25 MLD Sewage Operational
2. New Okhla Industrial Development
Authority
Noida 25 MLD Sewage Under construction.
3. Punjab Water Supply and Sewerage
Board
Jalandhar 25 MLD Sewage Under construction.
4. Pimpri Cinchwad Municipal Corporation Rawet 20 MLD Sewage Under construction.
5. Lucknow Development Authority Lucknow 15 MLD Sewage Under construction.
6. Pimpri Cinchwad Municipal Corporation Shangavi 20 MLD Sewage Under construction.
7. Public Works Department, Goa Panjim 12.5 MLD Sewage Operational
8. Punjab Water Supply and Sewerage
Board
Samana 10 MLD Sewage Under construction.
9. Uttaranchal Peyjal Nigam Haridwar 3 MLD Sewage Under construction.
10. Goa Medical College Goa 1.3 MLD Sewage Operational
11. Rajiv Gandhi IT Habitat Goa 0.3 MLD
0.6 MLD
0.6 MLD
Sewage Under construction.
12. Goa State Industrial Dev. Corpn. Goa 0.8 MLD Sewage Under construction.
TEXTILES
13. Textile Common Effluent Treatment Surat 100 MLD Textile Under construction.
14. Gujarat Eco Textile Park Ltd. Surat 60 MLD Textile Under construction.
REFINERY
15. Hindustan Petroleum Corpn. Ltd. Vizag 4.3 MLD Refinery Under construction.
16. Hindustan Petroleum Corpn. Ltd. Mumbai 7.2 MLD Refinery Under construction.
17. Bina Refinery Bina 9 MLD Refinery Under construction.
PHARMA
18. Jawaharlal Nehru Pharma City Vizag 3.5 MLD Pharma Operational