Wastewater Treatment Services

With a large, experienced wastewater engineering team, Lutra can guide you through the entire design process

Wastewater Process Engineer Onsite MBBR Pilot Plant

Lutra can help improve your treatment performance.

A streamlined approach ensures your project requirements match the necessary design standards, while providing you value and confirming your process is future proof.
Lutra's hands on team are happy to come to your site and see things first hand.
Lutra also believe in pushing things forward, we won't just offer you the same old options for your treatment processes, but we will always look for the smartest solution for your issues.
Part of achieving this involves piloting technologies for the NZ market, such as MBBR and Ceramic Membranes. This way we understand how these process work and offer you the best solution. 

Wastewater Treatment Offerings

Our engineers are experienced in delivering a diverse range of wastewater projects, including:

Wastewater Treatment Plant Drum Screens and SBR

Process Design

Our engineering team can assist with end-to-end process design for your wastewater treatments plants. We can undertake investigations and develop preliminary process designs to achieve your desired outcome. From individual unit processes to complete treatment plants, our team can help.

Design Services Include:

  • Process Design
  • Commissioning
  • Workshop Facilitation
Process Engineer On A Wastewater Treatment Plant Doing Calculations


Optimisation of your treatment assets can significantly reduce your operating expenditure and failures. 

From advanced process control through to modelling and demand predictions, our team can support you.

Some of our Optimisation Services:

  • Aeration Optimisation
  • Plant Production Performance
MBBR Pilot Plant Onsite With Process Engineer


Our expert engineers can provide a wide range of modelling, auditing and incident investigation solutions for your wastewater operations.

We can help you to understand your treatment plants, to reduce your risk, and improve your operational performance.

Some of our Investigation Offerings:

  • Performance Audits
  • Pilot Plants
  • Incident Investigations
Cyanobacteria Monitoring Plan


It is important to develop and maintain operational procedures across your current and future operations. 

Our team can help to create & review your operational procedures and develop plans as required.  We can also troubleshoot any process issues you are having.

Examples of these services:

  • Total Coliforms Monitoring Plans
  • Sample Schedule Development
Wastewater Activated Sludge

Process Support

Our experienced team can provide you with remote Process Engineering Support, assisting you with a wide range of topics, from optimising, troubleshooting and more. If you are in need of technical plant support, our team of specialised support staff can assist you!

This service includes:

  • Phone support from our experienced Process Engineers
  • Remote SCADA monitoring
SCADA Classroom Training


Training is essential to ensuring the safe and efficient operation of your assets, whilst upholding your duty of care. 

We offer both state of the art tailored training solutions and onsite in-person training:

  • License to Operate (LTO) site specific online training
  • Onsite training provided by our process engineers

Some of our wastewater experts:

Louis v2

Louis Ortenzio

Chief Engineer

Louis is the Chief Engineer, heading up our Water and Wastewater Process Engineering Teams. With over fifteen years of International experience and a passion for innovation, Louis continues to grow and diversify Lutra's expertise and offerings.


Tim Miskimmin

Wastewater Team Leader

Tim has over 10 years experience as a process engineer, delivering engineering projects and design solutions to safely maintain and improve process plants and now uses this to lead our wastewater team.


Andreas Fischer

Innovation Lead & Senior Process Engineer

Andreas has worked as an engineer for 10 years with experience in process engineering, running pilot plants, project management and more.

Case Studies

MBBR Pilot Plant Onsite With Process Engineer

Katikati MBBR Pilot

In the pursuit of exploring the potential of MBBR as a cost-effective add-on solution for nitrogen removal, our team executed a two-stage MBBR pilot at the Katikati Wastewater Treatment Plant in Western Bay of Plenty.

Wastewater Process Engineer Onsite Taking Measurements

New Plymouth WWTP

When New Plymouth District Council (NPDC) upgraded their wastewater treatment plant’s headworks, they needed an advanced hydraulic model to better estimate the types of headlosses they would experience under various flow conditions.

National Water and Wastewater Operator Training

National Operator Training

Lutra developed the national level training certificate for the next generation of operators, in partnership with Connexis, to provide the required training to safely operate and maintain treatment assets.

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