Diploma in Conditioning and Vitrification Technologies
Online postgraduate diploma of 800 hours in conditioning and vitrification technologies, structured in 8 modules covering radioactive waste classification, nuclear glass chemistry, industrial vitrification, cementation and alternative matrices, durability testing, waste packages and safety under IAEA GSR Part 5, Directive 2011/70/Euratom and IAEA SSR-6, with an assigned technical tutor.
Diploma in Conditioning and Vitrification Technologies — studying from the United Kingdom
The United Kingdom has a long history in nuclear engineering and maintains a substantial sector spanning reactor operation, decommissioning, fuel cycle and new build projects. Sites at Sellafield, Hinkley Point, Dounreay and Harwell host work on fuel cycle, waste management and advanced reactor technology. Organisations such as the Nuclear Decommissioning Authority, EDF, Rolls-Royce SMR and Urenco UK employ engineers in design, safety and operations. Nuclear activities are overseen by the Office for Nuclear Regulation, which sets strict safety and security requirements.
Fees for the United Kingdom: £910 (Pound sterling), with instalments and employer sponsorship available.
Relevant bodies in the United Kingdom
Typical roles
Questions from the United Kingdom
Which UK regulators and bodies govern nuclear engineering, and how do they treat private training?
The Office for Nuclear Regulation regulates nuclear safety in the UK, and the Nuclear Institute is the main professional body. Competence requirements for licensed sites are set by the operator and regulator. SEIUM's qualifications are private, not state degrees, and not accredited by any national body, so they carry no regulatory standing and recognition is at the discretion of employers and the Nuclear Institute.
Do UK nuclear operators and fuel cycle employers hire people with private online qualifications?
UK nuclear employers typically require security clearance, specific competence assessments and qualifications recognised within the industry. A private online qualification may add to your profile but is unlikely to replace formal requirements. Employers decide its value, so check the entry criteria for roles you want before investing in the programme.
How intensive is the programme, and can I fund it through employer sponsorship in the UK?
Specialist courses take 300 hours, postgraduate diplomas 800 hours and master's programmes 1,900 hours, all online in English with an assigned technical tutor. Fees can be paid in instalments. Employer sponsorship is possible, and many UK nuclear employers run their own training schemes, so ask whether your employer would fund this specifically.
Take the controls.
Run a real engineering trade-off from this field. Move the sliders, watch the model react in real time and beat the challenge.
What you will be able to do
Classify radioactive waste by origin and activity.
Understand the chemistry and structure of nuclear glasses.
Describe industrial vitrification processes and their equipment.
Select cementation or alternative matrices according to the waste.
Assess matrix durability through standardised tests.
Prepare waste packages in line with acceptance and transport criteria.
Apply safety and regulatory requirements to conditioning plants.
Who it's for
- Radioactive waste management engineers.
- Vitrification process technicians.
- Waste package characterisation specialists.
- Nuclear materials chemists looking to work on waste matrices.
- Radiation protection technicians in treatment facilities.
- Facility safety analysts.
- Engineering or science graduates seeking to enter radioactive waste management.
What you'll work with
- IAEA GSR Part 5 (predisposal management of radioactive waste)
- Directive 2011/70/Euratom (EU framework for spent fuel and radioactive waste management)
- IAEA SSR-6 (regulations for the safe transport of radioactive material)
- IAEA SSR-5 (disposal of radioactive waste)
- IAEA GSG-1 (classification of radioactive waste)
- ASTM C1285 (Product Consistency Test for waste glasses)
- ISO 6961 (long-term leach testing of solidified radioactive waste)
- Royal Decree 102/2014 (Spanish regulation on spent fuel and radioactive waste management)
- MCNP
- MicroShield
- FactSage
- PHREEQC
8 modules
1.1Origin of waste in the nuclear fuel cycle1.2IAEA classification1.3High-, intermediate- and low-level waste1.4Fission products and minor actinides1.5Liquid reprocessing waste1.6Radiological inventory of waste1.7Decay heat and its management1.8Management strategies1.9The General Radioactive Waste Plan1.10Case study: classification of waste streams
2.1Reference borosilicate glasses2.2Phosphate glasses and alternatives2.3Structure of the glass network2.4Solubility of oxides in the melt2.5Phase separation and molybdates2.6Viscosity and electrical conductivity2.7Crystallisation and devitrification2.8Glass formulation2.9Maximum waste loading2.10Lab: melting a simulated glass
3.1The AVM and AVH processes at La Hague3.2Cold crucible melter3.3Joule-heated ceramic melters3.4Prior calcination of liquid waste3.5In-container vitrification3.6Off-gas treatment3.7Process control and sampling3.8Remote maintenance in hot cells3.9Experience of the Hanford WTP plant3.10Case study: mass balance of a melter
4.1Cementation of intermediate-level waste4.2Cement chemistry and geopolymers4.3Bituminisation of concentrates4.4Polymer encapsulation matrices4.5Compaction and supercompaction4.6Waste incineration4.7Encapsulation of ion-exchange resins4.8Synroc-type ceramics4.9Treatment of irradiated graphite4.10Practical exercise: formulation of a cementation mortar
5.1Leaching tests5.2PCT and MCC-1 tests5.3Glass alteration mechanisms5.4Long-term dissolution rates5.5Effects of self-irradiation5.6Mechanical strength of waste packages5.7Homogeneity and quality control5.8Natural analogues from ancient glasses5.9Durability models5.10Lab: static leaching test
6.1Steel and concrete containers6.2Acceptance criteria for storage6.3Non-destructive characterisation of packages6.4Segmented gamma spectrometry6.5Dose rate and surface contamination6.6Gas generation in packages6.7Transport under SSR-66.8Documentation and traceability6.9El Cabril as a reference6.10Case study: acceptance file for a waste package
7.1Radiation protection in treatment plants7.2Criticality safety7.3Hot cell design7.4Effluent management7.5Facility licensing7.6Safeguards and material control7.7Centralised interim storage7.8Deep geological disposal7.9Intergenerational ethics of waste management7.10Practical exercise: safety analysis of a hot cell
8.1Definition of the waste stream8.2Radiological and chemical characterisation8.3Selection of the matrix8.4Formulation and process parameters8.5Waste package design8.6Durability assessment8.7Safety analysis8.8Technical conclusions and improvements8.9Report and presentation8.10Final project: final review with the tutor
How you'll learn
100% online training on the SEIUM campus, with downloadable material, recorded classes and an assigned technical tutor. There are no fixed timetables: you progress at your own pace within each intake, so you can combine it with your job.
Each module combines theory, guided reading of the original standard and applied exercises. The working software is MCNP, MicroShield, FactSage and PHREEQC, in free, academic or evaluation versions. Practical work is based on real procedures: formulation and melting of simulated glasses, leaching tests on matrices and characterisation of waste packages for acceptance. Assessment is continuous by module plus the final project.
Standards covered: IAEA GSR Part 5, Directive 2011/70/Euratom, IAEA SSR-6, IAEA SSR-5, IAEA GSG-1, ASTM C1285, ISO 6961, Royal Decree 102/2014.
Build it end to end
Your final project follows the real engineering workflow, step by step, reviewed by your tutor.
Where this takes you
Requirements
- Prior technical training or professional experience in the sector. No university degree is required.
- An internet connection and a computer capable of running the programme software.
- English sufficient to read technical standards.
Ready to start?
Send your application today. Our admissions team replies within 72 hours with your study plan and funding options.
Frequently asked questions
The programme totals 800 hours over 6–8 months. You set your own pace within each intake, and your tutor helps you plan the workload around your job.
You work with MCNP, MicroShield, FactSage and PHREEQC, using free, academic or evaluation versions. Your tutor indicates the free alternative wherever one exists.
A SEIUM Institute diploma, awarded on passing the continuous assessment and the final project. It is SEIUM's own qualification, not an official state degree; its recognition depends on the programme completed and the regulations of each country.
Yes. Modules passed are recognised in a higher programme in the same area (postgraduate diploma or master's). Ask about the recognition policy when you enrol.
Prior technical training or professional experience in the sector (no university degree required), plus English sufficient to read technical standards.
Start dates are set by SEIUM's faculty for each intake. Our admissions team will confirm the next available date when you apply.
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