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