Monitoring in Severn Trent’s Model Areas

John Brewington

Innovation Manager

Severn Trent Model AreasTrimpley and Spernal

• Trial and demonstrate new technologies and ways of working.

• Pursue integrated management, control and automation.

• Deliver more resilient, calmer networks and enhanced customer performance.

• Develop the Effluent and Water Factory and Smart Network thinking - connecting our infra and non-infra assets.

Innovate – Integrate – Replicate

Spernal Catchment

Inputs

• Domestic Population ≈ 92000

• Trade effluent

• 34 consents (metal finishing, food processing & leachate)

• Dry Weather Flow Components

• 95% Domestic, 4% Trade, 1% Infiltration

Assets

• 575km of sewers - 3.25km of rising mains

• 16 pumping stations

• 5 CSOs

• 1 Siphon

Building on the Factory Concept

The Factory will automate the treatment process to match demand within the local network.

Workforce Motivation

OPEX Savings

Income Generation

Water/EffluentQuality

Process Control in the Factory

Controlling Sludge Density

Spernal Waste Factory -Supersized

Anaerobic mainstream treatment

Anaerobictreatment

Nutrient recovery

Low energy N&P removal

N&P Ion exchange

Full resource recovery

Cellulose

Biopolymers

MetalsAMP 6

Early AMP 7

Mid AMP 7 >

Developing a permanent plug and play facility to test 3 parallel systems of 500m³/d.

Out into the Network

Key Work streams

• Network Factory dashboard

• Event detection monitoring - CSOs & sewer hotspots

• Active sewer management

• Modelling - opportunity assessment• Active Sewer Management• Rainfall measurement

• Intelligent Sewage Pumping Stations

• Intelligent (All Seeing) Panels

• Smart outstations and signals upgrades

• Trade Effluent Control

Foundation

Enabler

Smart

Active Sewer Management

Current Model

Smart Model

Using level monitoring and a

sluice gate to control network flows

Network Dashboard and Visualisation

Trimpley Control Group

Upgrade

LevelTechnology

Smart Demand Control Valves

SmartSmart Pipes – Pressure

Sensors

SmartBooster Asset Health

Monitoring

SmartMulti Parameter Sensor &

Data Analysis

Enabler Trunk Main Monitoring

Enabler Reservoir Level Monitoring

Enabler ICA Panel with PLC and HMI

Enabler Outstations for New Panels

Foundation Pressure Sensors

Foundation Flow Control Valves

Foundation Insertion Flow Meters

Smart Pipes

• Innovate UK funded collaboration to develop an easy to install leak detection system for existing and new water pipes.

• University of Birmingham, Bristol Water, Morrison Utility Services, Severn Trent, Syrinix.

• 4 units deployed in Romsley

Multi-parameter sensors

ATi MetriNet

ChlorineConductivitypHOxidation Reduction PotentialTurbidityPressure

Intellisonde

Flow TemperaturePressure TurbidityFree Chlorine Mono ChloroamineDissolved Oxygen ConductivitypH Oxidation Reduction Potential

To provide multi-parameter data from a single point and at lower cost.

• Source to Tap (works to DMA)Installations of;

• Intellitect Intellisondes• ATi MetriNets