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Advanced Digestion - Technical Operator

Date:  15-Nov-2022
Company:  DWR Cymru Cyfyngedig Welsh Water Plc
City:  Dinas Powys

Dinas Powys, Wales, GB, CF64 4TR

Job Requisition Number                              3814                                                                              
Work Type Permanent
Job Function Operational
Salary Range £33,560 - £38,132


Closing Date 

Cog Moors

23:59 28/11/2022


Who we are


Dŵr Cymru Welsh Water keep 3 million people healthy each day with safe, reliable water, and take away wastewater to clean, before returning it safely to our beautiful rivers and seas.

To be able to deliver high quality, essential services which help to protect the health of our customers, colleagues and our environment, we need the right people to deliver on our vision.  This is achieved by living our core values and demonstrating the core behaviours that underpin them.  The security of our people, assets and information is key to us, so we are looking for people who understand and comply with the company’s required security objectives.

We know that the most successful teams are the most diverse teams. Equality, diversity and inclusion provide the very foundation to our culture at Welsh Water. We want every individual to feel confident, proud and able to bring their whole selves to work. 

To ensure an improved representation in our workforce, applications are particularly welcome from minority groups including Black, Asian and Minority Ethnic people, Females, LGBT+, Non-binary and people with disabilities. Together we continue to build a workplace that not only celebrates the diverse voices of our colleagues but also represents each customer we serve.

In essence, ours is a company based on trust, openness, respect, commitment and honesty. A company that our colleagues are proud to work for.

What you’ll be responsible for


As a credible member of the Advanced Digestion Team you will:

•    Form part of a team that will be responsible for the 24 hour operation and maintenance of sludge treatment and associated plant, 
•    Work to agreed standards to ensure the organisation meets its health & safety, contractual, regulatory, operational and financial targets.


As Technical Operator you will:

•    Have primary responsibility for operation and maintenance of sludge screening, sludge imports, centrifuges, odour control, Cambi™ process, water treatment, steam boilers, CHP plant, digestion process, return liquors, thermally hydrolysed sludge dewatering and sludge export. 
•    Demonstrate ownership of process problems & manage the decision-making process outside of the conventional working day.
•    Responsible for the operation, maintenance and monitoring of all operational processes associated with sludge treatment including sludge screening, sludge imports, centrifuges, odour control, Cambi™ process, water treatment, steam boilers, CHP plant, digestion process, return liquors, thermally hydrolysed sludge dewatering and sludge export.. This will also include shadowing and assisting external maintenance engineers.
•    Proactively carry out planned maintenance and operational checks to time and required standards.
•    Undertake sampling of all processes as per instructions and record any analysis in the site log.
•    Manage sludge stocks ensuring that there is capacity for adequately desludging the WWTW. Liaise with the Waste Services Controller and import / export contractors as necessary and manage the dewatered sludge bays and sludge cake storage building.
•    Monitor and seek to maximise performance of CHPs, liaising closely with the CHP Manager and maintenance providers.
•    Actively take part in risk assessments, COSHH assessments and all health and safety issues.
•    Identify problematic plant and the subsequent faults, rectify where possible and escalate to Operations Supervisor as appropriate.

Who you’ll work with



•    Members of the Advanced Digestion Team
•    Catchment Teams including Catchment Manager, Operational Supervisor, Craft and Process Operators
•    Waste Water Management Team



•    Visitors to Site
•    Contractors

About you


Experience, Qualifications and Skills


  • Excellent communication skills
  • Able to asses risk and adopt a safe working practice to undertake task
  • IT Literate
  • Waste Water on NVQ and BTEC 
  • Competency of working with ‘Live steam apparatus’ 
  • Demonstrate the ability to offer technical expertise, contribute to discussions, improve others awareness who may have generalised but less process specific knowledge
  • Previous experience in working in waste water business would be desirable.
  • Knowledge and experience of working with steam boiler systems and combined heat and power engines.
  • Knowledge and use of interface systems eg scada, HMI
  • Experience in operating Advanced Digestion  processes 
  • Completed “Managing safely” course

Good to know


•    As a Technical Operator shift cover, you will be expected to work 16 shifts per month organised and arranged through your line manager. Shifts will comprise of 12 hours days or nights; you will also be required to cover or support at one of the other Advanced Digestion sites. (42 hr contract)


For any further information regarding this role please contact Andy Knowles, Advanced Digestion Supervisor - 



As well as a market competitive salary, 33 days annual leave (pro rata, including public holidays), we offer a range of employee benefits and rewards including:

•    Variable pay schemes ((your salary band will remain the same, but performance depending, you could receive an incremental within-band increase and a yearly incentive)
•    Enhanced employer pension contributions – Up to 11% employer contributions
•    Enhanced family friendly policies
•    Progression opportunities, including the ability to apply for funded training and coaching and mentoring programmes
•    Reduction on gym memberships and high street shopping
•    Cycle to work scheme
•    Free on-site parking at all our sites
•    On site returning parents’ and multi faith rooms
•    20% off all Welsh Water visitor attraction centres and gift shops
•    Car-leasing scheme
•    Health CashBack scheme
•    An employee assistance programme for employees and their immediate family

Whilst also working for a not-for profit company that truly cares about earning the trust of customers everyday, and about looking after our beautiful environment

Please note, we may close this role sooner if required. We may also extend the original closing date depending on interest.





Dŵr Cymru Cyf, a limited company registered in Wales No. 2366777. Registered office: Linea, Fortran Road, St. Mellons, Cardiff CF3 0LT

© Dŵr Cymru Cyf 2019.

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