Modular Inlet Works System for Ōpōtiki WWTP

May 9, 2024

In the last eighteen months Hydroflux has delivered over twenty (20) inlet works packages to sewage treatment plants located all over New Zealand, in order to remove debris that would otherwise accumulate in the downstream treatment process, reducing process efficiency and comprising performance.

The packaged inlet works are delivered as pre-engineered systems that are simple to install, include automatic bypass arrangements and reduce civil works requirements.

This latest project for Ōpōtiki WWTP included a custom designed inlet feed well and isolation penstocks, in addition to the pre-fabricated stainless steel inlet works chamber.

Project Highlights

  • HUBER Inclined Drum Screen technology provided with integrated screenings washing, conveyor and compaction
  • Sized for a Peak Wet Weather Flow of 280 L/s
  • Tank design included integrated feed well with connection to multiple pump stations
  • Integrated tank for the HUBER Drum Screen included isolation and automatic bypass with a manually raked bypass screen
  • No need for above ground purpose built concrete channels

Technology Highlight

  • Modular prefabricated design suits capacities up to 600 L/s
  • Screening apertures from 1.5 to 6mm, as perforations or wedgewire
  • Screening technology can be spiral screens, through flow band screen, drum screens or mechanically raked screens, depending on the application
  • Optional design with grit removal and grit dewatering
  • Optional design for standby screening equipment
  • Controls and Automation
  • Remote monitoring with HyConnect®

To learn more please visit or contact us on 1300 417 697 or email [email protected].

About the Hydroflux Group

The Hydroflux Group aims to deliver the highest level of engineering and scientific know-how to the emerging issues of sustainability, climate adaptation and environmental protection with a specific focus on water and wastewater.

As part of its vision and mission, Hydroflux has always taken its climate responsibility seriously. In 2022, Hydroflux became Australia’s first water treatment and technology company to achieve Climate Active carbon neutral certification for its organisation and products. It knows that partnering with customers and clients is the most significant impact it can have in its journey. The Group employs over 100 staff and operates throughout Australia, New Zealand and the Pacific Islands, with office locations in Sydney, Melbourne, Brisbane, Perth, Auckland, Suva and Portsmouth.

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