About Steve Last – Anaerobic Digestion and Waste Engineering Expert

Chartered waste and environmental engineering consultant, anaerobic digestion writer, and founder of IPPTS Associates.

Steve Last is a United Kingdom–based Chartered Waste Manager and environmental engineering consultant with more than 30 years of professional experience in waste management, landfill engineering, anaerobic digestion, and biogas technologies.

As the founder and principal of IPPTS Associates, Steve has worked on waste treatment, resource recovery, and environmental protection projects in the UK and internationally, helping organisations develop practical and sustainable solutions for managing organic wastes and producing renewable energy through anaerobic digestion.

He has worked on projects in the United Kingdom, Ireland, Hong Kong, India, New Zealand, Cyprus, and South Africa, and has long specialised in practical engineering and technical communication for the waste and resource recovery industries.

This website exists to provide clear, reliable, technically informed guidance on anaerobic digestion, biogas production, digestate use, and associated waste-to-energy technologies for operators, developers, consultants, researchers, and decision-makers.

Areas of Expertise

Through more than three decades of work in waste management and environmental engineering, Steve Last has developed specialist expertise in the following areas:

• Anaerobic digestion and biogas production systems
• Digestate management and renewable fertiliser applications
• Waste treatment technologies and resource recovery
• Landfill gas collection and utilisation
• Leachate treatment plant design and optimisation
• Waste depackaging technologies and organic waste processing
• Environmental compliance and sustainable waste management practices

 

About IPPTS Associates

IPPTS Associates provides environmental engineering and waste management consulting services and promotes the wider understanding and adoption of anaerobic digestion and biogas production.

Steve provides consultancy support on anaerobic digestion and biogas projects through IPPTS Associates, including feasibility studies, feedstock advice, mass balances, AD plant infrastructure design, and refurbishment advice for older anaerobic digestion systems.

If you require specialist support, quotations for consultancy work are available on request.

Why This Website Exists

Biogas production is now a proven technology delivering major benefits to investors, operators, communities, and the wider environment. Even so, many potential beneficiaries still do not fully appreciate the true potential of the anaerobic digestion process.

That is why this website exists:

to spread the word about the benefits of anaerobic digestion and biogas production, and to make specialist information easier to understand and apply in practice.

Anaerobic Digestion Consultancy Services

This site and its associated blog are intended to help readers understand both the fundamentals and the practical realities of anaerobic digestion and biogas production.

Industry Interview and Media