A.T.E. HUBER Envirotech brings comprehensive solutions for wastewater treatment, recycling and sludge management for industrial and municipal sectors. The septic sludge treatment covered in this presentation is a modular system applicable to municipalities, mega-cities, industrial undertakings, business establishments, and housing estates. To know more log on to www.atehuber.com.

1. 1
Solutions for Decentralised Waste Water Treatment
Septic Sludge Treatment
- Together we can turn wastewater into fresh water!
A.T.E. HUBER Envirotech Private Limited
V2.0 May 2017

2. 2
 A.T.E. and HUBER have formed a joint venture, A.T.E. HUBER Envirotech
Private Limited to bring comprehensive solutions for wastewater treatment,
recycling and sludge management for industry and municipal sector – a win-win
for industry, as well as environment
 HUBER SE, Germany, is a global leader in the field of water, wastewater and
sludge treatment
 The A.T.E. group is a diversified Indian engineering group with over 75 years of
experience in many different verticals
A win-win solution from A.T.E. - HUBER

3. 3
HUBER, SE
Germany
 Innovative technologies for
wastewater and sludge treatment
 Proven products with an installed
base of over 40,000 over 175
years
 Wide experience with installations
across 60 countries
A.T.E. HUBER ENVIROTECH
India
 Wastewater domain expertise
 Proven project execution track
record of over 16 years
 Wide experience of treating
industrial wastewater from many
industries, with projects in 10
countries
The A.T.E. - HUBER advantage

4. 4
Population
Screening
Dewatering
Landfill
VRM-technology
Screening Dewatering
Composting
TransportationCollecting faeces
Irrigation Fertiliser
agriculture
Residuals
Screening
DewateringScreening Dewatering
biogas reactor
TransportationCollecting faeces
Liquid Solids
SBR-technology
Or
 Innovative process with low operation
costs
 Prevention of contamination of the
environment with nutrients, pollutants
and pathogens
 Recovery of irrigation water, fertiliser
and optional biogas
Septic sludge treatment process

5. 5
Decentralised septic sludge treatment: HUBER solution
3
21
Screening
Dewatering
Filtrate biological
treatment
Consists of:
1. Sludge acceptance/screening – for removal of trash and sand
2. Sludge dewatering – for removal of Chemical Oxygen Demand (COD) increasing solids
3. Biological treatment – for reduction of Biochemical Oxygen Demand (BOD) and COD to
acceptable levels
HUBER SeptageTreat® Solution

6. 6
Modular system
This system can be easily adapted to a growing population
It is possible to initially install only the basic treatment system
Composting facility for dewatered sludge can be easily added
Water reuse could be added at a later stage, if required, by changing the biological
treatment to a membrane bioreactor (MBR) process
HUBER SeptageTreat – advantages
Modular design of HUBER SeptageTreat process keeps open all options for future
enlargement, water reuse and fertiliser production

7. 7
 Robust design
 Manufactured completely from stainless steel
 Long life and low lifetime cost due to low
maintenance required
 Complete removal of solids by just ½ rotation of the
rake arm
 High reliability and reduced discharge times
 Screenings press and grit removal included
Septic sludge screening – advantages
HUBER Rotamat ® Ro3

8. 8
Septic sludge dewatering – process

9. 9
Septic sludge dewatering – results
Filtrate water with hardly any
suspended solids, COD abt.
900mg/l, initially approx. 10000-
20000 mg/l in the untreated
septic sludge)
Dewatered septic sludge with 35 -
40% dissolved solids (DS)
HUBER Rotamat ® RoS3

10. 10
Septic sludge dewatering – advantages
 Low speed operation + unique operation
principle
 Reduced efforts for civil works
 Long life and low lifetime cost due to low
maintenance required
 Sludge dewatering up to 35 – 40% with
low polymer consumption
 Less efforts for further biological treatment
necessary
HUBER Rotamat ® RoS3

11. 11
Septic sludge dewatering – advantages
Waste to wealth
Dewatered sludge can be used as basic material for fertiliser by -
 Adding quick lime for conditioning of the sludge
 Combining it with green cut for composting purposes

12. 12
Filtrate biological treatment – process
Filling Mixing Aeration Sedimentation Removal
 Characteristic of the SBR process: All phases of the process are in the same reactor
 Critical phase: Removal of the clear-water after the sedimentation phase
Sequential Batch Reactor (SBR) technology
Requirements for clear-water-treatment SBR process
Quick removal 
Should not let the bottom or floating sludge mix in the water 
Every time available (otherwise waste water treatment plant does not work) 
Easy service and maintenance must be possible without emptying the tank 

13. 13
Decentralized septic sludge treatment – applications
Municipalities of
developing and newly
industrializing
countries
Housing estates,
development areas
Hotel complexesMega cities with
evolved structures
Rural
municipalities
Invest money for wastewater treatment rather than
spending on wastewater transportation through extensive sewer systems
Industrial undertakings,
business establishments

14. 14
 Low investment and immediate benefit
 Cost-effective treatment of small but very concentrated wastewater
flows (no rainwater, no flushing water...)
 Modular design, hence simple to expand
 Integration of organic-waste (green-cut) treatment possible
 Production of fertiliser, compost
 Reuse of clarified wastewater and nutrients directly at source
Decentralised septic sludge treatment – advantages

15. 15
Background and challenges
 Kuching a city in Malaysia, with a population of over 600,000 is experiencing rapid
development and growth
 Main sewerage disposal is through septic tanks (mostly black water)
 Overflow from septic tanks and grey water is directed into a basic drainage system
 Most of the septic tanks have not been emptied for several years
 Overflow of raw sewage goes via the drainage system directly into the river
 Tremendous river pollution (oxygen level in solution lower 1.0 mg/l) and health risk
for population
 Implementation of a central sewer system and two centralised treatment plants
seemed very difficult, time consuming and cost intensive
Case study – Kuching, Malaysia

16. 16
Goals
 To improve the river water quality quickly
 The only solution for quick improvement was optimising of the existing septic
tanks by emptying them regularly and treating the sludge in a septic sludge
treatment plant
 This plant had to start as fast as possible to improve the quality of local water
resources within 2 -3 years
Case study – Kuching, Malaysia

17. 17
Solution
 The project for setting up the sludge treatment plant was awarded to
HUBER SE, Germany
 Scope of supply
 3 x Ro3.3 with integrated grit-trap
 4 x RoS3 size 2 including poly plants, pumps and electrical controls
 Capacity: 300m3/d septic sludge
 Operation time: 8 hours/day
Case study – Kuching, Malaysia

18. 18
Case study – Kuching, Malaysia
Results Units Performance
Dewatering
Flow m3/h 38
Dry solid content of input % 1,0 ... 3,0
Dry solid content of dewatered sludge % 30...35
Dry solid content of limed sludge % 40...45
Waste water treatment
BOD5 content at SBR outlet mg/l < 5
COD-content at SBR outlet mg/l < 50
Main operational results (status: October 2000)

19. 19
Kuching plant, Malaysia

20. 20
Background
• Septic tanks provide the most common form
of sewage treatment in Metro Manila
(approximately 10 – 14 million PE)
 Approximately 83% of household in Metro
Manila have individual septic tanks and are
de-sludged only when blockages happen.
 Currently, this untreated septic sludge is
transported away from Metro Manila and
discharged in the northern part of Manila to
aid regeneration of sterile land (soil
conditioning).
Case study – MTSP project, Philippines

21. 21
Goal
 To provide reliable septic sludge treatment
 To reduce the transportation costs for the sludge disposal
Solution
 Construction of 2 specialised septic sludge treatment plants under the MTSP3
World Bank loan scheme
 MTSP South: Capacity of 814 m3/d (+ WWTP 2000 m3/d)
 MTSP North: Capacity of 585 m3/d
Case study – MTSP project, Philippines

22. 22
Scope of supply
MTSP South
 5 Ro3.3 with 2 inlet points each, including electrical controls
 7 RoS3.2, including poly plants, pumps and electrical controls
MTSP North
 4 Ro3.3 with 2 inlet points each, including electrical controls
 5 RoS3.2, including poly plants, pumps and electrical
Case study – MTSP project, Philippines

23. 23
Case study – MTSP, Philippines
Results
South North
Units Performance Units Performance
Dewatering
Flow m3/h 55 m3/h 44
Dry solid content of
input
% 1,0 ... 3,0 % 1,0 ... 3,0
Dry solid content of
dewatered sludge
% 28...32 % 25...32
Dry solid content of
limed sludge
% 40...45 % 40...45

24. 24
The MTSP plant, Philippines
Overview

25. 25
The MTSP plant, Philippines
Acceptance plants

26. 26
The MTSP plant, Philippines
Dewatering plants

27. 27
Conclusion
HUBER SeptageTreat septic sludge treatment process
 Reliable and robust
 Specially designed for septic sludge and not just the usual waste
water treatment plant
 Reduces the COD level in the septic sludge before it enters the
biological step in order to ease the biological cleaning process
 Has reasonable life time costs and low maintenance requirements

28. 28
WE SOLVE
YOU SAVE
Together we turn wastewater into clean water!

29. 29
Contact us at….
A.T.E. HUBER Envirotech
Private Limited
CTS 689, A-19,
2nd Floor, Bhagwati House,
Veera Desai Road,
Andheri (West),
Mumbai - 400053, India
+91 22 46121212
huber@ateindia.com
Huber SE
Industriepark Erasbach A1
D-92334 Berching
Germany
+49 8462 201-0
+49 8462 201-810
info@huber.de

30. 30