This project is a means for Water Suppliers to lead
the international water industry in developing and producing justifiable
guidelines for planning operational and maintenance strategies to manage
discolouration. This is based on an ability to use the extensively verified
PODDS computaional model to simulate discolouration in water distribution
systems through changes in network hydraulics and water quality.
PODDS IV specifically aims to:
o To develop and verify PODDS parameter datasets such that material
mobilisation predictions can be confidently made for transmission (trunk
main) pipe systems leading to justified pro-active operation and management
o To quantify material generation rates in trunk main systems and hence
explore the relative costs and benefits of regular enhanced conditioning
versus out of service cleaning for trunk main systems.
o Combine leading edge knowledge and understanding to develop a holistic
framework for managing discolouration from ‘treatment to tap’.
In addition to the above novel aims for PODDS IV, work
will continue in three other main areas:
o To undertake field based regeneration trials to verify the impact
of trunk mains operations and holistic management approaches.
o Quantification of the relative influence of different possible controlling
factors on material accumulation and subsequent mobilisation processes
under controlled conditions within plastic potable water distribution
systems pipes, focusing on the role of microbial communities.
o Continue with efforts to facilitate independent verification of the
DRAT tool and if deemed of value explore its further development and
use as part of the holistic management approach.
o Develop a PODDS user Forum