The document discusses issues related to water treatment and recycling in India. It summarizes that rapid urbanization and economic growth have led to increased water consumption without corresponding infrastructure expansion. As a result, water sources like rivers and groundwater are drying up and becoming contaminated. The key issue identified is improper disposal of wastewater. The document then summarizes Enzotech's credentials and decentralized wastewater treatment solutions using modified RBC and MBBR processes. It highlights advantages like minimal land and chemical requirements, low operation costs, and the ability to treat wastewater to reusable quality.

1. Water Treatment & Recycling
Solutions
Reduce, Reuse & Recycle

2. WATER : What is the issue?
• Economic growth : without
corresponding infrastructure
• Urbanization
– Increasing density of population in
cities/towns –
apartments/commercial buildings
– Expanding peripheral areas :
– Chennai: OMR, Oragadam, GST
– Gurgaon / NCR
– Hyderabad – Gachibowli, Miyapur,
Uppal,Patancheru
• Huge increase in water consumption
Where is the water coming from ?
– Rivers, Lakes, Ponds …..and now,
mainly Ground water!

3. WATER : Next issue!
• Sources of water drying up
• A larger issue coming up –
– Contamination of Water Sources
• The way we dispose off
waste water is the
biggest issue in water
management!

4. Report Summary
• Citizens’ Seventh Report on the State of India’s Environment,
“Excreta Matters: How urban India is soaking up water,
polluting rivers and drowning in its own excreta”
– by Centre for Science and Environment, New Delhi
• Report released in May 2012 – covering 71 cities of India,
research over 3 ½ years
• The report spells out a six-fold strategy for managing water
and waste in its last chapter
“The agenda for water to water”.
Source : http://www.indiawaterportal.org/post/26422
and http://cseindia.org/userfiles/excreta-matter.pdf

5. Recognize and manage Sewage
• Recognize and manage Sewage :
78 % officially not treated and let
out into rivers, lakes, ground
– Sewage generated = 38,255 mld
– Capacity to treat = 11,788 mld (30%)
– Sewage actually treated = 8,251 mld
(22%)
• Improper Sewage disposal - the
dangers : Spread of disease,
contamination of soil and pollution
of ground water
• Quote from Report :
“Sewage must be our obsession”
• Quote :
“Mantra is Decentralization”

6. What is “Decentralized” sewage treatment?
• Current system : sewage is the
responsibility of the
Government / public authorities
• But – how can public authorities
manage? :
– Cost and challenge of connecting :
widely spread out “development”,
apart from untenable logistics –
expensive to connect
– Land availability – for “centralized”
treatment plants?!
• Hence -> On-site, Local
Treatment – “Dencentralized” STP

7. Why Decentralized ? Local benefits!
• On-site treatment and
discharge
– Reduces load on existing
sewage system
– Local treatment and discharge –
protects contamination of
water sources (rivers, water
bodies, ground water)
• Domestic Water consumption
: Over 30 % for flushing,
washing facilities etc – NON
CONTACT applications
– Suitable for RECYCLED water

8. Average water consumption Per person
Drinking 5
Cooking 5
Total 10 7%
Bathing 55
Washing Clothes 20
Utensils washing 10
Total 85 63%
General washing 10
Toilet Flushing 30
Total 40 30%
Grand Total 135
Recyclable – about
40 % (including
Gardening etc)

9. Enzotech Solutions : Credentials
• Started in 2006
• ISO 9001:2008 certified company
• Strong client roster – testimony to efficacy of Patented
technology.
• Over 135 Installations all over India. (A few in Africa)
• Starting Aug ’11, taken over by a team of seasoned
management professionals
• Full fledged operations : Design and R & D – Manufacturing
– After sales support

10. Key Customers
• Over 135 installations all over India.
• Industrial units : Aditya Birla group (Gujarat), Tata group, Brakes
India (TVS group), KKP textiles (Namakkal), Delta Power (Delhi/NCR)
• Hotels/Resorts : Mahindra Holidays (11#), Holiday Inn,Manali,
various hotels/resorts in Goa
• Residential apartments : Parsvnath Developers (Delhi), Coromandel
Engg (Murugappa group), Maytas, Hyd (IL&FS)
• Educational Institutions : TERI University, Pathways Intnl schools,
PSG College of Technology
• Hospitals : Manipal Hospitals, Apollo Hospitals, Care Hospitals,
Prathiksha Hospitals

11. Enzotech : Products & Services
• Sewage treatment Plants :
– Patented Bio-tech process-based Packaged Treatment plants (RBC technology) :
10 KLD to 450 KLD (ET series)
– New bio-tech based process ENZO MBBR : can be used for both FRP structure tanks
and also civil construction structures: 50 KLD to 2.0 MLD (EF series)
– SBR (Sequential Batch reactor): A biological cum aeration system. Offered both in
underground installations and in civil construction.
– In partnership with a German Company ‘Klaro’, Enzotech offers state of the art
waste water solutions for capacities from 2 KLD to 150 KLD. Especially suitable for
independent houses, farm houses etc.
• Custom designed solutions for treating industrial effluents
• Water treatment plants – Softeners, Iron Removal filters, Ultrafiltration,
RO plants
Robust processes capable of delivering Reusable quality of water in a cost-
effective way.

12. Enzotech : Products & Services
• Service : For Enzotech Plants
– O & M
– AMC contracts
– Supply of chemicals
– Supply of Spare parts
• Other services :
– Water quality testing
– RETROFITTING solutions for existing conventional plants
– Customized solutions
• Water treatment plants for treating lake / ground water
(Supplied to Kenya)

13.  Superior & Effective Treatment of sewage
 Minimum sludge generation
 No stench
 Low power consumption
 Low cost of operation
 Minimum civil work
 Compact design – Less space requirement
 Very little operation noise
 Quick & easy installation
 Low maintenance
Eco-Friendly
Key features of Enzotech Packaged plants

14. Enzotech Factory

15. Enzotech Factory – Finished Tanks under testing

16. Enzotech Factory – Moulding shop

17. Enzotech Factory – Paint shop

18. Enzotech Factory – Fabrication shop

19. Modified RBC process

20. Process selection for treating wastewater to
Recyclable/Reuse standard
Preliminary
treatment
including
Equalization
Secondary
Clarifier
(Biofiltration
&
Sedimentation)
Secondary
Biological
Treatment
(RBC)
Primary
Treatment
(Flocculation
&
sedimentation)
Sand
filter
Carbon
filter
Ultra
filtration
Reverse
osmosis
Raw water
Primary Treatment Secondary Treatment
Advanced Treatment
(optional)
Tertiary Treatment

21. ENZOTECH PLANT

22. ENZOTECH PLANT

23. ENZOTECH “ET series” : RBC PROCESS Improvements
• Improvement of Primary clarification, Bioreactor and
second clarifier to reduce size and increase efficiency of
the process.
• Emphasis given to study of water chemistry and
microbiology to increase efficiency of treatment to 97%.
• Low power consumption
• Low sludge generation.
Parameters Details
Raw Water source Sewage, Bathwater, kitchen/canteen, laundry water
Quality of raw effluent COD < 2000 SS < 300 BOD <
1000
pH – 4 to 9
Treated water achieved by
the process
COD < 200 SS < 30 BOD < 20 pH – 7.5 to 8

24. Patented Process
Modified Parallel plate clarifier by Enzotech
• Special High Rate Clarificator
• Modified parallel plate
clarification with coagulation &
precipitation with special
polymer or Electrocoagulation.

25. Patented Process
Design of Bio-ball media
Enzotech Bio-Ball Media

26. COMPARISON OF MEDIA CHARACTERISTIC
NAME SIZE SURFACE
AREA
VOID
RATIO
WEIGHT
MBBR
media
40 mm 350 to 400
Sq.m/Cu.m
79 % 94 gm/L
Enzotech
Bioball
28 mm 450
Sq.m/Cu.m
95 % 27 gm/L
Compared to a standard media used in the market

27. Modified RBC by Enzotech (Patented)
(Rotating Biological Contactor)

28. Microbiology Work
• Established Microbiology Lab
• Identification & selection of efficient bacteria for sewage
treatment
• Other seven species of bacteria for production of enzymes
for faster metabolism of waste.
OIL CHEMICALDETERGENT

29. EnzoMBBR Process

30. Enzotech Process
Process steps
• Coarse Screen
• Pre Aeration in Equalization Tank
• EnzoMBBR Aeration
• Second Clarifier (Biofiltration)
• Filtration (Sand Filter, Carbon
Filter)
• Sludge Handling (Sludge
Thickener and Drying Bed)
Bio Ball arrangement

31. EnzoMBBR Plant

32. Advantages of EnzoMBBR process
• Minimal chemicals are required - only for Disinfection.
• Low operation and maintenance cost : 1.5 p to 2 p per liter.
• Easy installation and easy retrofitting in existing treatment
plant.
• Low sludge generation.70 kg /7000 liters for 300 KLD,
120 Kg/12000 liters for 500 KLD.
• Flow variation will not affect efficiency of treatment of plant.

33. Thank You