Achieving TOTEX reductions in wastewater pumping systems MARK - - PowerPoint PPT Presentation

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Achieving TOTEX reductions in wastewater pumping systems MARK - - PowerPoint PPT Presentation

Nov 18, 2022 307 likes •597 views

Achieving TOTEX reductions in wastewater pumping systems MARK HERRING & CHRIS HARVEY Introduction Achieving the challenges of TOTEX reduction in wastewater pumping systems using innovative integrated intelligent technology Mark Herring

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Achieving TOTEX reductions in wastewater pumping systems

MARK HERRING & CHRIS HARVEY

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Achieving the challenges of TOTEX reduction in wastewater pumping systems using innovative integrated intelligent technology

Mark Herring Mechanical Engineer Southern Water Chris Harvey Marketing Development Manager Xylem Water Solutions

Introduction

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“ •

Water customers getting the best deal for the long term

  • Planning for climate change and population growth
  • Incentives for outcome delivery being more powerful
  • Common performance (measures for) resilience
  • Increased transparency and asset integrity
  • Avoiding paying twice for asset resilience
  • Scope to manage future uncertainty

Mr David Black - Director of OFWAT 2020 Presentation at WWT Conference Tuesday 31st January 2017

”

Key takeaways from OFWAT presentation

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Water industry challenges in wastewater handling

  • Wastewater network used

as a general disposal system for non-biological solids by end user

  • Escalating electrical costs
  • Increasing fuel costs
  • Growing and ageing asset

base

  • Legal liabilities for failure to

protect environment

  • Pressures to

reduce customer bills

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Water industry requirements

TROUBLE FREE PUMPING EFFICIENT ASSET MANAGEMENT ENERGY SAVINGS REDUCED INVESTMENT COST

TOTEX

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Capital Cost

UK wastewater pumping stations

Above 8.1kW Between 2-8kW

Total number of municipal wastewater pumping stations in UK 37,253 (of which 20,116 < 8kW approx ) Around 64 % of the assets < 8kW will require 3.1 visits per annum purely for unblocking pumps Considering round distance to site of 40 miles The industry covers 1,596,405 miles per year

  • consumes 53,346 gallons diesel
  • produces 762.84 tons of Co2
  • risking 39,910 of overflow
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Wastewater utility challenges

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Wastewater utility challenges Asset diversity and selection

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complex selection…

Southern Water Challenge

4357 sq. miles 3240 sewage pump stations 1490 below 8kW 47 different wastewater pump manufacturers + all the variants

Supply Chain Solution

Wide range of motor/impeller combinations

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Wastewater utility challenges Reactive operational requirement – blockages

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Water Company Challenge Supply Chain Solution Non-biological solids Leading edge blockage Plug blockage

Clean leading edge impeller design Improved uniform through-let velocity Variable speed drives pre-block detection/reversing functionality

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Impeller design to improve blockages

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Operational challenges Reactive operational requirement – sump cleaning

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Water Company Challenge Solutions

Collection of in-organic solids in the wet well New station

  • Good wet well civil and controls

design promoted by specification

  • Retrospective solutions to existing

and adopted asset

  • Pump activated

sump automatic flushing valves

  • Control system

technology to use, lowering the wet well level to draw floating solids through the pump Frequent tankering visits Disruption to the public Odours

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Water Company Challenge Solutions

Uncontrollable costs

£

2007 – 5.15 p/kWh 2017 – 9.07 p/kWh

Figures courtesy ;- UK Gov. Dept. for Business, Energy and Industrial Strategy

Diesel 2007 – 0.97 per litre 2017 – 1.21 per litre 2013 – 1.44 per litre

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Calculating the costs

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Water Company Challenge Supply Chain Solutions

Operational challenges Well intended adjustments - Fiddly Fingers

Stronger engineering Password protection Training support

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Water Company Challenge Solutions

Environmental changes

Growth Climate change

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To truly deliver on TOTEX, reduction in wastewater pumping stations requires a completely different approach; a different way of thinking; one that takes on and beats the challenges holistically.

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Existing solutions

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Existing Supply chain Solutions

Premium eff motors Improved Impeller design Devices to snore pumps to clear solids Drives that run an anti-block routine Drives that combine anti-blocking routines, sump cleaning, and energy minimiser function Integrated Control & Automation systems Flush valves for sump cleaning Massive range of motor impeller combinations Seal leakage detection

  • A new level of thinking, a new level of

technology

  • Integrated control system
  • IE4 motor efficiency
  • Adaptive N-hydraulics

 Senses operating conditions  Adapts performance  Built-in pump protection  Provides feedback  Clog detection & pump cleaning  Self learning energy minimizer  Sump and pipe cleaning  Soft start and soft stop  Always correct impeller rotation  Abuse ‘fiddly fingers’ resistant

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Flygt Concertor™

The world’s first wastewater pumping system with integrated intelligence

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Flygt Concertor™

150mm 100mm 80mm

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Southern Water supplies water and treats wastewater, covering a total of some 10,530km² extending from East Kent through parts of Sussex, to Hampshire and the Isle of Wight.

  • Approximately 3240 wastewater pumping stations
  • 46% some 1490 dual pump pumping stations below 8kW
  • 47 different wastewater pump manufacturers and more than 338 different variants

Southern Water

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Southern Water Birdham SPS

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Rural village West Sussex Foul flows from the village and caravan park Historical issues with rag and blockages

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Southern Water Birdham SPS – Trial Site

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 Intelligent wastewater pumping system trial

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Southern Water Birdham SPS – Trial Site

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Trial duration 15 April – 8 June 2016 Caravan park - two Bank Holiday weekends The intelligent wastewater pump system ran the station in its entirety Zero blockages Performed an average of 2 pump cleaning cycles per day

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Heathrow Airport

Customer pain points

  • To deliver clog-free pumping of aircraft wastewater – some of the

most challenging wastewater to pump

  • Reduce the frequency of tankers to clean wet well

Solutions

  • Clog-free pumping with no emergency call outs
  • Energy consumption reduced by 53%
  • No extra investment in enlarged cabinets was required

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Heathrow Airport

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Since installing Concertor we have had absolutely no clogging and the sump remains clean. As well as peace of mind the savings are approximately 87.5% of the annual costs in cleaning and servicing.

Ian Jolly Heathrow Airport Water Services Department

’ ‘

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Concertor Installations at Dec 2015

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Duty points covered by one single version

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All pumps end up running here

One single version covers all duty points

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Thank you for listening and welcome to Flygt Concertor™

The world’s first wastewater pumping system with integrated intelligence