Library
Conference Papers

Mangakino Wastewater Renewals – An Evidence Driven Approach

21/09/2017

The township of Mangakino was developed during the 1950s for workers constructing power stations on the Waikato River.
Conference Papers

Wastewater Overflow Continual Improvement Programme – The Journey So Far

21/09/2017

Wastewater Overflow Continual Improvement Programme – The Journey So Far
Conference Papers

The New First Responders: Automated On-Line Systems for Detection of Microbial Water Contamination

21/09/2017

The new first responders: Automated on-line systems for detection of microbial water contamination - Eike Breitbarth (REZO) Louise Weaver (ESR) Rebecca Stott (NIWA)
Conference Papers

Paeroa WTP - Chemical Free Waste Streams

21/09/2017

This paper will discuss the design optimization process, consenting challenges for untreated washwater discharge and the collaboration of the structural and planning teams with the technology supplier required to develop this design solution.
Conference Papers

Water Treatment for Small Supplies – Balancing Risks and Costs

21/09/2017

This paper draws on the authors’ 80 years of combined experience in the design and implementation of water treatment plants to help frame the industry’s thinking about how to cost effectively design water treatment for small supplies, while balancing the risks of non-compliance and waterborne disease outbreaks.
Conference Papers

Influence of Pre-Ozonation and Media Type on Biological Activated Carbon (BAC) Performance

21/09/2017

Activated Carbon has long been used as a potable water filtration media for the removal of Dissolved Organic Carbon (DOC) that would otherwise lead to chlorine decay, regrowth in distribution networks and elevated THM levels.
Conference Papers

Challenges in Developing a Treatment Solution for PFAS - An Emerging Contaminant

21/09/2017

This paper outlines the challenges confronting the development of a feasible treatment solution for PFAS-impacted wastewater, which were identified and demonstrated during the development and testing of a process for two commercially available products in the treatment of PFAS-impacted firefighting training wastewater.

Conference Papers

Getting To the Bottom of Scum – A New Process for the Separation and Dewatering of Clarifier Scum

21/09/2017

This paper presents the project from inception to operation, including the outcomes of early trials and the key matters and lessons learnt that influenced the design and construction, recognising the increasing importance of effective scum management in WWTP operations.
Conference Papers

Energy Neutral WWTPs – A Dream or a Reality for New Zealand?

21/09/2017

This paper will summarise the key energy aspects of these six “Water Resource Recovery Facilities”, and will then relate their similarities and differences to a range of New Zealand counterparts to assess whether energy neutrality is a realistic goal for them – or is a dream which will be difficult to achieve.
Conference Papers

Omaha WWTP – Land Discharge Consent & Beneficial Re-Use Outcomes

21/09/2017

This project involved the replacement of the previous resource consents for the Omaha Wastewater Treatment Plant (“Omaha WWTP”) treated wastewater discharges. The Omaha WWTP is located ~70km north of Auckland on Jones Road, Omaha Flats. It treats wastewater from Omaha, Point Wells and Matakana.
Conference Papers

PPCPs’ Removal in a Wastewater Treatment Plant of New Zealand

21/09/2017

In this study, the occurrence and removal efficiency of 19 selected pharmaceuticals and Personal care products (PPCPs) was investigated in an urban wastewater treatment plant of New Zealand to evaluate the removal efficiency of the treatment plant which relies on membrane bioreactor (MBR) and Bardenpho process for wastewater treatment.
Conference Papers

Impact of Climate Cycles and Trends on Selwyn District Water Assets

21/09/2017

The project considered projected changes in climate in the light of historically observed climate cycles and trends and assessed what the impact of future changes could be on water assets.
Conference Papers

Optimised Long Term Condition-Based Renewals of Hastings District Council Trunk Sewers

21/09/2017

This paper focuses on the recent application of the new strategy to HDC trunk sewers.
Conference Papers

Water Safety Plan Framework

21/09/2017

Water Safety Plan Framework - Ministry of Health Activities and Direction
Conference Papers

Putting the Squeeze on Sludge – The Adoption of Screw Press Technology for Municipal Sludge Dewatering At New Plymouth WWTP

21/09/2017

This paper presents the project from master planning to commissioning, including the outcomes of early operation. A number of considerations and lessons learnt that influenced the design, construction and early operation of this project, which have also been discussed in this paper.
Conference Papers

Taking digital design and delivery to the next level

21/09/2017

Taking the next Digital Steps, From BIM basics to Smart Infrastructure - Simon Kerr, Digital Delivery Principal
Conference Papers

Disruptive Technologies

21/09/2017

Beca Tech Drop, Trending Technology and how it might impact us - Vaughan Robertson

Conference Papers

A Tale of Two Sludges – Trialling Operational Temperature Control of Anaerobic Digester

21/09/2017

This paper describes a trial investigating diverting cold secondary sludge directly to the mesophilic digesters to provide cooling. The full scale trial was conducted on a single mesophilic digester (Digester 4), to determine the viability of this approach before full implementation.

Conference Papers

Oxfam’s Role in the Pacific

21/09/2017

WaSH in the Pacific: Sustainability, working politically and inclusion, Angela Wilton Director of Partnerships Oxfam New Zealand
Conference Papers

PWWA Role in the Pacific

21/09/2017

PWWA Role in the Pacific - Pitolau Lusia Sefo Leau
Conference Papers

Pacific Aid

21/09/2017

WaSH and the New Zealand Aid Programme - Jonathan Fletcher, Principal Development Manager, Infrastructure
Conference Papers

Sewage Reticulation – What Option is best for you?

21/09/2017

This paper discusses the site-specific factors that influenced each preferred option. It also presents a multi-criteria decision matrix that was developed to allow for an evaluation of the reticulation options on a holistic basis and to enable the right selection of a reticulation option at an early stage in the project timeline.
Conference Papers

Alternative Approaches to Assessing Asbestos Cement Pipe & Critical Assets Insitu

21/09/2017

This investigation is focused on the current technological limitations in the condition assessment of critical water distribution assets and how they can be overcome with new technologies entering into the market.

Conference Papers

Rags to Riches - A Data Story

21/09/2017

In 2014 the Waikato District Council (WDC) undertook a project to upgrade their SCADA system to better improve the collection, storage and reporting of compliance data.
Conference Papers

SCADA Strategy and Challenges

21/09/2017

SCADA Challenges & Solutions - Andrew Duffy & Stuart Kirk