Name

Poole water recycling and transfer: bench scale micropollutant treatment

Speakers

Dr Kally Kaur, Daniel Rusev

Authors

Kally Kaur, and Lovina Kulkarni, WatStech Ltd, UK
Neil Gardener and Daniel Rusev, Stantec UK Ltd, UK
Martin Wood, West Country Water and Environment, UK

Description

The West Country Water and Environment (WCWE) group have identified that water recycling as part of the solution for a complex regional challenge. By purifying then redirecting a water resource currently lost to sea, the Poole Water Recycling and Transfer project can;
1. protect River Stour flows, and
2. improve future regional water supply resilience. 

Bench testing has been commissioned to provide the necessary treatment insights using a tertiary treated wastewater feed matrix. Rapid Small Scale Column Tests (RSSCTs) were chosen to evaluate performance of different Granular Activated Carbon (GAC) media, including variants designed for trace contaminants removal e.g. poly-and-perfluoroalkyl substances (PFAS). Advanced Oxidation Processes, including ozonation and ultraviolet light combined with hydrogen peroxide, were evaluated to understand influence on GAC performance and bed life alongside optimum operational conditions. Pre-treatments for organic carbon reduction, including coagulation, followed by ultrafiltration for solids removal, were assessed.

This integrated treatment strategy has been shown to degrade organics, including micro-pollutants and emerging contaminants, and will inform a larger site trial. This will help WCWE develop an innovative and systems-thinking led solution to meet the latest Environment Agency guidance, ensuring value for the customer and environment.

Time

2:30 PM - 2:55 PM

Location Name

Room 3

Track

10:05 - 16:15 Micropollutants & Emerging Contaminants