1. Massey University - New Zealand
36,000 local and international students
over half of these study by distance education
Copyright: Andy Shilton, NovoLabs, Massey University.

2. New Zealand – Massey Campuses
Auckland Campus(Albany)
Palmerston North (Turitea)
Wellington Campus
Copyright: Andy Shilton, NovoLabs, Massey University.

3. NovoLabs A Massey Uni Start-Up Company
Products
Our Technologies
Supercritical UV Disinfection
Advanced Extraction Modules
The APP Process
The LBBG Process
Our Agencies
Inversions-Tecnik of Basel, Switzerland
Yisheng Environmental of Hebei, China
Our Consumables
Services
Monitoring
Review
Analysis
Copyright: Andy Shilton, NovoLabs, Massey University.

4. Process/Enviro Labs Rebuilt ~2014
Copyright: Andy Shilton, NovoLabs, Massey University.

5. Full range of analytical services
Copyright: Andy Shilton, NovoLabs, Massey University.

6. Lab and Field Treatment Testing
Copyright: Andy Shilton, NovoLabs, Massey University.

7. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
The Algae PolyPosphate Process for removing Phosphate from Waste Stabilisation Ponds
Copyright: Andy Shilton, NovoLabs, Massey University.

8. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Massey found algae from WSPs could undergo Luxury Uptake in lab and increase their P content up to 3.85% gP/gVSS
Staining reveals
granules
Marsden Research Fund Project
How common is this in field?
What is the triggers?
Can it be optimised into a engineered process?
Copyright: Andy Shilton, NovoLabs, Massey University.

9. Observed occurring in real WSPs but sporatic…
3.8 %P/g VSS
July avg. = 1.63 %P/g VSS
Jan avg. = 2.1 %P/g VSS
Sporadic and conditions not fully understood
Copyright: Andy Shilton, NovoLabs, Massey University.

10. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Process Tested in Lab
Removed days along bottom for IP
Copyright: Andy Shilton, NovoLabs, Massey University.

11. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
A Unique Solution
A potential way of modifying thousands of existing pond sites for biological phosphate removal
No chemical addition
A process modification utilising existing assets
Maintaining operational simplicity and low cost operation
Copyright: Andy Shilton, NovoLabs, Massey University.

12. Advanced Extraction Modules
Copyright: Andy Shilton, NovoLabs, Massey University.

13. Modular Filters - The problem to solve
Phosphorus concentrations in 63% of New Zealand’s rivers are above guideline levels.
As regulation tightens, communities struggling to fund upfront capital for increasingly complex wastewater treatment upgrades.
BUT the smaller the community the higher the per capita cost!
Copyright: Andy Shilton, NovoLabs, Massey University.

14. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Experimental Work Funded by MBIE ‘Smart Ideas’ Fund – Oct 2015 to Oct 2017 Testing at Lab and 4 operational pond sites around Manawatu
Copyright: Andy Shilton, NovoLabs, Massey University.

15. AEM treating secondary WSP effluent
Solids Removal
AEM treating secondary WSP effluent
Copyright: Andy Shilton, NovoLabs, Massey University.

16. AEM treating a preconditioned WSP effluent
Solids removal
AEM treating a preconditioned WSP effluent
Copyright: Andy Shilton, NovoLabs, Massey University.

17. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Phosphate removal
Copyright: Andy Shilton, NovoLabs, Massey University.

18. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Nitrate removal
Copyright: Andy Shilton, NovoLabs, Massey University.

19. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Upgrade Examples
Name
Population
Function
Capital cost
Operating cost
Disposal
Total
$/p
Irrigation
2340
Land disposal
$18.8M ($13.5M land)
$8,034
$391k
(-$100k of crops)
$167
included
SBR/MBR with C dosing + alum
P + solids removal
$15.4M
$6,581
$364k
$156
Not mentioned
Alum dosing
1400
$632k
$451
$415k
$296
Included op cost $71/p without disposal
Alum + DAF + Attached Media
5650
P + solids removal +
Nitrification
$3.17M
$561 -
NovoLabs AEM
example
2000
P + Solids + N removal
$102k
$51
$325k
$163
Includes disposal
Note:
AEMs not yet optimised
3. Includes treatment of Phosphate and Nitrate and Solids
4. Includes full disposal fees (allowed for landfilling but composting is possible and cheaper)
5. Low upfront cost and thus Low Risk
Copyright: Andy Shilton, NovoLabs, Massey University.

20. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
SUPERCRITICAL UV
Copyright: Andy Shilton, NovoLabs, Massey University.

21. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Reducing Depth
From the Beer-Lambert law we know that the thinner the flow then the exponential loss of light is reduced giving a higher average dose and so, for a given retention time, better treatment.
But as we reduce the depth of the flow we also reduce the capacity of the UV treatment system.
How could we design UV treatment to operate at a thin depth but maintain full flow?
The only way to achieve this is to increase the flow velocity.
Use supercritical flow
Copyright: Andy Shilton, NovoLabs, Massey University.

22. Open Channel Hydraulics and Froude Number
Copyright: Andy Shilton, NovoLabs, Massey University.

23. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Supercritical UV
Copyright: Andy Shilton, NovoLabs, Massey University.

24. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.

25. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.

26. Developed Multiple Prototypes
Copyright: Andy Shilton, NovoLabs, Massey University.

27. Is there a net Benefit? Comparative Field Testing
Our Prototype vs a typical ‘Commercial’ design
Same bulbs and power units
Repeated field testing - 7 different operational wastewater treatment sites around lower North Island of NZ
Direct comparison of e.coli reduction
Testing primary and secondary wastewaters including waste stabilisation ponds
Copyright: Andy Shilton, NovoLabs, Massey University.

28. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Test Prototype 3
Copyright: Andy Shilton, NovoLabs, Massey University.

29. Typical Commercial Channel Design
GPH840N2/S 87w bulbs
Copyright: Andy Shilton, NovoLabs, Massey University.

30. P/C for Secondary at 3 Sites
Ratio of log reductions of Prototype relative to Commercial
Copyright: Andy Shilton, NovoLabs, Massey University.

31. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Secondary
Copyright: Andy Shilton, NovoLabs, Massey University.

32. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Secondary Example
When we measured after secondary E.coli were : 18,000 MPN/100ml
If we wished to simply apply UV after secondary treatment how much more power would they needed to get ~2.25 log remove to 100?
Copyright: Andy Shilton, NovoLabs, Massey University.

33. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
2.25 log reduction
Secondary
Achievable at ~3.7 W.min/L
UV unrealistic…?
Copyright: Andy Shilton, NovoLabs, Massey University.

34. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Secondary from a Pond
Copyright: Andy Shilton, NovoLabs, Massey University.

35. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Secondary from Ponds
Copyright: Andy Shilton, NovoLabs, Massey University.

36. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Primary 1
Copyright: Andy Shilton, NovoLabs, Massey University.

37. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Primary 2
Copyright: Andy Shilton, NovoLabs, Massey University.

38. Example Disposal from Primary to Irrigation
“UV technology is also now being applied to low quality waters, such as primary treated wastewater and combined sewer overflows” Source: trojanuv.com
At 4W.min/L Primary 1 and Primary 2 were 53,027 and 36,606 total MPN/100ml
According to WHO < Faecal 100,000 is required for restricted irrigation (eg to fodder crops; pasture; trees; etc)
Copyright: Andy Shilton, NovoLabs, Massey University.

39. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
All Ratios
Copyright: Andy Shilton, NovoLabs, Massey University.

40. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Ratio vs %UVT
Copyright: Andy Shilton, NovoLabs, Massey University.

41. Industrialisation of Concept
Copyright: Andy Shilton, NovoLabs, Massey University.

42. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Manifolded inlet option
Copyright: Andy Shilton, NovoLabs, Massey University.

43. Copyright: Andy Shilton, 2017. NovoLabs, Massey University.
Stacking
Stackin
Copyright: Andy Shilton, NovoLabs, Massey University.

44. Pressure and Capacity Examples
The pressure head required to eject the liquid through the slot (in this case via gaps of 2mm and 3mm) and down the channel as a high velocity supercritical flow can be kept low.
If desired the liquid could be conveyed by gravity fall through the device.
For context of capacity I thought it would be useful to consider some examples.  
Copyright: Andy Shilton, NovoLabs, Massey University.

45. Pressure and Capacity Examples
A key feature of my device is that it is simple to build and easily stackable.
To give an idea of capacity if applied commercially I have thus assumed using an unit consisting of a stack of 10 trays.
I have also used a typical wastewater yield of 200l/(person.day) to provide an idea of population served at an average daily flow.
Example 1:
2mm Gap. Upstream head of 0.9m gives approx. 400lpm treated pre tray.
For a stack of 10 this equates to 5,760m3/day or a population of 28,800.
Example 2:
3mm Gap. Upstream head of 1.3m gives approx. 650lpm treated pre tray.
For a stack of 10 this equates to 9,360m3/day or a population of 46,800.
Copyright: Andy Shilton, NovoLabs, Massey University.

46. Pressure and Capacity Examples
Size: The width of the unit is defined by the length of the bulb and the length of the unit is defined by the number of bulbs, and thus reflectors, plus the inlet. In Prototype 3 we had a width of 1m, accommodated 6 bulbs and depending on reflector design the unit can potentially have a length around just 0.9m.
Thus to provide the throughput capacities in the examples above, the area of the unit can be <1m2 in area.
It would be a simple matter to install multiple stacks as were required to meet large city sized flows.
Importantly the use of more powerful bulbs could reduce the length significantly as my unit was only using 87watt bulbs.
Furthermore with more powerful bulbs we could also look to increase the gap size further which would significantly increase throughput capacity.
Copyright: Andy Shilton, NovoLabs, Massey University.

47. Key and New Market Segments
Low UVT secondary effluents
Algal ponds
Outfalls and unrestricted Irrigation
“UV technology is also now being applied to low quality waters, such as primary treated wastewater and combined sewer overflows” Source: trojanuv.com
Industrial processing eg milk products
Copyright: Andy Shilton, NovoLabs, Massey University.

48. NovoLabs A Massey Uni Start-Up Company
Products
Our Technologies
Supercritical UV Disinfection
Advanced Extraction Modules
The APP Process
The LBBG Process
Our Agencies
Inversions-Tecnik of Basel, Switzerland
Yisheng Environmental of Hebei, China
Our Consumables
Services
Monitoring
Review
Analysis
QUESTIONS
Copyright: Andy Shilton, NovoLabs, Massey University.