| Project |
Description |
Staff
, Students and Sponsor |
| |
|
|
| Phosphorus
Removal by Slag Filters |
‘Active’
filters have emerged as a promising solution for P-removal from
effluents around the world. Various materials have been tested for
their ability to retain phosphorus and it has been found that electric
arc furnace slag (EAF slag) has one of the highest P retention capabilities.
However, the mechanisms by which phosphorus is removed have not
been confirmed. The objective of this work is to investigate these
mechanisms to allow effective design of 'active' filter systems.
|
Dr
Andy Shilton
Dr Chris Pratt
Dr Steven Pratt
A/Prof Richard Haverkamp
|
| |
|
|
| Dairy
Farm Ponds for Energy Production |
Many
dairy farms in New Zealand use pond systems to treat wastewater.
One of the byproducts produced in anaerobic ponds is methane which
is a potential energy source for dairy farmers. This project aims
to design a simple low cost process to optimise biogas production
in anaerobic ponds. The biogas can then be collected and used as
a renewable energy source.
|
Dr
Andy Shilton
Alistair Boughton
NIWA
Agresearch
Dairy Insight
|
|
|
|
|
| Optimising
Regional Digestion for Waste to Energy |
Anaerobic
co-digestion of agricultural materials together with exhausted biomass
offers opportunity to increase biogas production at typically under-loaded
municipal digesters. There is potential to then recover energy from
the combustion of the biogas produced.
|
Dr
Andy Shilton
Dr Chris Pratt
Prof. Richard Archer
Alistair Boughton
Selina Zhang
Peter Brown
PNCC
|
| |
|
|
Optimising
Aerated Lagoons
|
|
Dr
Andy Shilton
Alistair
Broughton
PNCC
|
| |
|
|
| Product
Generation by Controlled Fermentation |
The
objective is the controlled conversion of biodegradable influent COD
into readily available substrate (eg. volatile fatty acids (VFA)),
which may be used as a feedstock for biopolymer generation or simply
returned to wastewater treatment systems to improve biological nutrient
removal. |
Dr
Steven Pratt
Dr Andy Shilton
John Sykes
Sumit Banker
University of Queensland
|
| |
|
|
Phosphorus
Removal in Treatment Ponds
|
Treatment
ponds serve thousands of communities around the world. And in many
cases, they are the only form of environmental protection that stands
between raw sewage and natural waterways. While they have worked extremely
well for decades as increasing focus comes on the need to improve
removal phosphorus research is urgently needed to address this weakness
in the ponds treatment capacity. It is believed that processes exist
within ponds that, if understood better, could be optimised to enable
effective P removal and this is the focus of the current research
project. |
Dr
Andy Shilton
Dr Steven Pratt
Prof. Yusuf Chisti
Nicola Powell
PNCC
|
| |
|
|
Removal
of Algae from Wastewater Treatment Ponds
|
This
project aims to investigate low cost methods of removing algae from
the effluent of wastewater treatment ponds. Removing algae from
the effluent not only reduces the suspended solids in the effluent
but also increases nutrient removal due to the assimilated nutrients
in the algae. It would then be possible to utilise the algae as
a resource, for example as a fertiliser or as feedstock for biodiesel
production.
|
Dr
Andy Shilton
Nicola Powell
Kathleen Bailey
|
| |
|
|
UV
Disinfection
|
|
Dr
Andy Shilton
|
