WRCCSO - Rethinking the CSO for the 21 st Century Peter Henley Water - - PowerPoint PPT Presentation

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Feb 25, 2023 10 likes •155 views

WRCCSO - Rethinking the CSO for the 21 st Century Peter Henley Water Research Centre Ltd. Head of Wastewater Networks Rethinking the CSO for the 21 st Century Innovation delivery through partnership independent | trusted | innovative

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WRCCSO - Rethinking the CSO for the 21st Century

Peter Henley – Water Research Centre Ltd. Head of Wastewater Networks

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independent | trusted | innovative

Rethinking the CSO for the 21st Century

Innovation delivery through partnership

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wrcplc.co.uk 3

independent | trusted | innovative

Water Research Centre Ltd – 90 Years of Innovation

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wrcplc.co.uk 4

independent | trusted | innovative

The CSO Problem

Unpowered CSOs do not work

consistently

Screens can block and often by-passed
Results in discharge of unsightly sewer

litter

Sewer litter leads to customer impacts

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wrcplc.co.uk 5

independent | trusted | innovative

Customer Impacts

Sewer litter leads to complaints,

fines and very poor PR

Impacts on pollution regulators

scoring indicators

Increased unwanted customer

contacts

Reputational damage to the water

industry

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wrcplc.co.uk 6

independent | trusted | innovative

WRc CSO Design Principle

Allow the natural hydraulic processes to occur Retain sewer litter within the flow Minimal presentation of litter to the screen

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wrcplc.co.uk 7

independent | trusted | innovative

The 21st Century CSO Solution

Design a CSO that retains sewer litter within the network
Provide a CSO solution that requires no power
Significantly reduces visible/aesthetic pollution
Reduce the frequency of screen cleaning
Provide a modular solution with a retro-fit capability

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wrcplc.co.uk 8

independent | trusted | innovative

WRc CSO Design

WRc Solution

Innovative 2 chamber design

Chamber 1.

Separates the floating debris and returns it to downstream sewer

Chamber 2.

Allows ‘clean’ water to spill to the watercourse via the screened weir

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wrcplc.co.uk 9

independent | trusted | innovative

WRcSO Chamber arrangement

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wrcplc.co.uk 10

independent | trusted | innovative

CSO Operation – Side Elevation Stilling Chamber Incoming Flow Continuation Flow Solid material density Spill Point

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wrcplc.co.uk 11

independent | trusted | innovative

CSO Operation – Downstream View Solid material density Incoming Flow Continuation Flow Spill Point

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wrcplc.co.uk 12

independent | trusted | innovative

The WRc CSO Advantages

Reduces debris presented to the screens by 98%
Reduces aesthetic pollution of watercourses and beaches to a minimum
Passive unpowered system that can be retrofitted
No E&M maintenance costs
Reduced SIM contacts and cost of spill clean up

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wrcplc.co.uk 13

independent | trusted | innovative

Patented solution (published) WRc partnership with Asset International Modular construction

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DZIĘKUJĘ ZA UWAGĘ

Peter Henley Water Research Centre Ltd, United Kingdom Peter.henley@wrcplc.co.uk