New Inlet Works Technology for Kawakawa WWTP in Northland

Kawakawa is located in the Northland region of New Zealand. The Kawakawa wastewater treatment plant (WWTP) treats wastewater from the Kawakawa township, including the Bay of Islands College and hospital. There are approximately 550 connections to this site.

Wastewater is treated in a biological process with the final treated effluent undergoing filtration prior to UV disinfection. The final treated effluent is then discharged to a constructed wetland.

A new SSF2000 Step Screen® was installed as part of the recent upgrade works. The new screen will remove gross solids from the wastewater stream to enable the downstream process to be free of accumulated debris and screenings, which would otherwise reduce performance of the treatment system.

Technology Overview

• SSF Step Screen® with 3mm bar spacing
• All 316L construction
• Low angle step design
• Stainless steel link system provides reliable operation (no chains or sprockets)
• No bottom or blind step
• Proven throughout New Zealand

Step Screen® was invented by HUBER’s subsidiary in Sweden back in the early 1980’s and since then over 6000 units have been installed around the world. Step Screen® provides an efficient solution to screening, particularly when a good level of screening efficiency is required without the need for washwater to clean the screening elements.

To learn more about our screening and wastewater solutions, please visit www.hydrofluxepco.au or call us on 1300 417 697. 

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.