Name

New kid on the block? More like, new kid that doesn’t block – A pilot study review of the new Unio Filter used for tertiary solids removal

Speakers

Gareth Jones

Authors

Ben Hazard, Te-Tech Process Solutions, UK
Gareth Jones and David Stevens, Freshworks, UK

Description

In recent years and in the coming AMP, the number of phosphorus removal schemes has increased dramatically. In addition, the total phosphorus concentrations that water companies are required to achieve are becoming tighter and tighter. To meet these requirements, the default solution appears to be chemical dosing with some type of tertiary solids removal (pile cloth, drum, sand filtration, etc).

Whilst these TSR (Tertiary Solids Removal) technologies are able to achieve the phosphorus consents, they often suffer with the issues of regular maintenance to clean the filter media, high backwash volumes, and can involve complex and costly components.

The Unio Filter is a new type of solids separation technology that operates on the principle of centrifugal force. Because it has no physical barrier, there is no chance of blocking, and with minimal moving parts, maintenance and capital cost is kept to a minimum. 

This paper will give an overview of how the Unio Filter Technology works and will detail the results of a recent pilot trial that took place on a live wastewater treatment works. During the trial, several operating parameters of the Unio Filter were varied, and the solids removal performance was assessed for each operating state. Whilst this paper will focus mainly on the tertiary solids removal aspect of the filter, it should be noted that screened sewage and trickling filter effluent were also tested with positive results.

Time

10:43 AM - 10:55 AM

Location Name

Room 2

Track

10:05 - 11:20 Technology Showcase