Environment Special Interest Group
A community for process professionals


David GreenChair
David Green
Engreen Environmental Consultants, UK



Stephen BillingtonTreasurer & Secretary 
Stephen Billington
Environmental Resources Management, UK

Stephen Billington has approximately twenty seven years’ experience working across energy, process and infrastructure projects. He has extensive industrial and consultancy experience, combining an in-depth technical appreciation of process engineering together with a blend of consultancy expertise focusing on regulatory compliance and risk management. Stephen has an international reputation in environmental impact studies with specialist expertise across a number of sectors including oil & gas, industrial, power generation and nuclear.

Stephen has worked for a wide range of clients and stakeholders, both in the UK and internationally. International experience includes Western and Eastern Europe, US, Canada, Brazil, Bahrain, Qatar, UAE, Oman, Georgia, Azerbaijan, Libya, Iran, India, Malaysia, Singapore and Hong Kong.

Stephen is currently a Partner at ERM. Prior to joining ERM, Stephen has worked for Haskoning, Enviros, Entec, Ecotec and AEA; and previously occupied senior posts in consultancy and industry. Stephen is an active member of the Committee in the IChemE ESIG, and previously Chairman of the Institute of Environmental Management and Assessment, Training Committee.

Kevin SoulsbyWebsite & AVERT Editor:
Kevin Soulsby MEng MIChemE CEng CEnv
Avara, UK

Kevin Soulsby have worked primarily in the pharmaceutical process development and manufacturing industry in the UK and in India, as well as in the polymer industry in the UK.

Kevin’s main areas of expertise currently are; solvent recovery, distillation, adsorption technology, process scale up and PID control loop tuning. Kevin has been a member of the subject group committee since 2008 and is currently the group’s online media and newsletter editor. If you would like to contribute to the website, Linked-In or AVERT - the newsletter, please contact him via the website or Linked-In.

John ClarkPast Chair
John Clark
Haskoning UK Ltd, UK



Clive HadfieldCommittee Member:
Clive Hadfield C.Eng., C. Env., M.R.S.P.H., M.E.I., M.C.M.I., A.M. IChemE
Clive Hadfield & Associates Ltd, UK

Clive Hadfield has experience in management, engineering and consultancy for a wide range of organisations. Clive is an accredited Carbon Trust consultant.
Particular skills and interests include: Focused control systems at the practical end of productive activity, resource efficiency, solvent management systems, carbon and energy management. Technical activities include development of mass transfer equipment for cleaning air and gases prior to discharge, including one granted patent and another one in course of development.

John DrabbleCommittee Member:
John Drabble
Royal Haskoning, UK



Committee Member:
David Green
Engreen Environmental Consultants, UK




Committee Member:
Dr Catriona Oare
GlaxoSmithKline, UK

Ali JavedCommittee Member:
Ali Javed

Ali Javed is a Chemical Process Engineer with over 7 years experience  in the specialist fields of utilities, waste management and renewable energy (energy from waste) plant designs. He has been a process design engineer on several biogas production plant designs (ranging from 100 kW to 5.0 MW electrical output for different clients) including a couple of the UK’s iconic large scale Municipal Solid Waste (MSW) Anaerobic Digestion Plants. Six of those plants have been fully operational to date (some of which, Ali was the commissioning engineer too) and the remaining are in various design development phases. His involvement in the outset of several process plant designs (i.e. conceptual design to plant handover stages) has equipped him with unique skills in the specialised field of renewable energy which has helped in the diversion of hundreds of thousand tons of useful feedstock from going to landfill per year.
He also has carried out extensive Research work on the development of specialised wastewater treatment, waste treatment and incineration plant designs. He has also produced several technical reports on various process systems design and operation for different clients.
Ali possesses in-depth knowledge of current UK biogas industry legislations. Ali has worked in the UK, Middle East and South Asia giving him one of the broadest process engineering backgrounds in many challenging locations.

Tom ClearyCommittee Member:
Tom Cleary BE C Eng Eur Ing FIEI FIChemE
Byrne O’Cleirigh Ltd, Ireland

Tom Cleary graduated in Chemical Engineering from University College Dublin (UCD). He is a Fellow of the Institution of Chemical Engineers and a Fellow of Engineers Ireland. He is currently the Chairman of the Membership and Qualifications Board of Engineers Ireland. Following graduation he completed a formal graduate training programme at Humphreys and Glasgow, a leading process plant designer in London. He worked as a process engineer on a range of oil & gas, fertiliser and other chemical plants and facilities for the UK, Europe, Africa and the USA. He returned to Ireland and continued his career in the design of process industry facilities. During that period he also began work on the interface between industry and the environment. He joined the consulting firm Byrne O Cléirigh in 1987 and is a Senior Partner with the practice based in Dublin. www.boc.ie . His areas of expertise include Energy Supply and Use, Energy Policy, Greenhouse Gas Emissions and Climate Change. He is also active in the fields of risk assessment and consequence modelling, undertaking assignments for operators of sites handling hazardous chemicals and in particular for sites regulated by the EU "Seveso" Directives. He has worked for private sector Clients in Ireland and overseas in Europe, Africa and China, and Governments.

Committee Member:
Nick Harwood
University of Cambridge, UK

Committee member :
Mike Nicholas
UK Environmental Agency, UK

My IChemE

IChemE is a registered charity in England & Wales (214379), and a charity registered in Scotland (SC 039661).