Speakers for the 2013 conference: A Future in Liquid Organic Waste
TOPIC: Options for the re-use of sludges
PRESENTED BY Professor Peter Scales, Department of Chemical and Biomolecular Engineering and Deputy Dean of the School of Engineering,University of Melbourne
Professor Scales leads a solids liquid separations team at the University of Melbourne and is leader for water research across the University. His many publications include varied topics such as Compressive rheology: An Overview, Rapid measurement of dewatering design andoptimisation parameters and Fundamental dewatering characteristics of potable water treatment sludges. Professor Scales will explore the high-end options for the re-use of sludges from a range of industries, including the current barriers and limited end-use options. He will also outline other options – such as pyrolysis and super- and sub-critical water oxidation methodologies – that may be the last resort, but the best option.
TOPIC: Strategies to manage organic waste
PRESENTED BY Owen Phillis, Manager Sewerage Strategy and Resource, Melbourne Water
Converting liquid organic waste to renewable energy, soil enhancement products, and other valuable by-products is a worthy objective. Owen will outline how Melbourne Water deals with its organic waste:
• Where the sewage comes from and what Melbourne Water converts it into, highlighting inadequacies in knowledge resources, flows and loads, and what the recent trends are showing.
• Melbourne Water’s objectives for resource recovery and how it is working towards cleaner production, (sewage) quality management, co-digestion, soil and energy production.
• The barriers to managing liquid organic waste.
TOPIC: Co-digestion of high-strength organic substrates – Waste-to-energy
PRESENTED BY Doug Richards, Trade Waste Project Manager, South Australian Water Corporation
For some time, Doug has been at the forefront developing and implementing waste water projects including heavy metal reduction in biosolids, sewer network salinity infiltration detection and reduction as well as co-digestion of ‘high-strength organic wastes’ at waste water treatment plant anaerobic digesters.
Co-digestion – the process of feeding high-strength organic substrate materials into anaerobic digesters that accept sludge produced at municipal sewage treatment plants – provides an alternative cost-effective disposal option for industries that generate high-strength organic substrate waste materials It also increases the production of biogas that is used to generate electricity from combined heat power units on site.
Over the past two years, more than 30 high-strength organic substrate materials have been ‘eudiometer’ tested with the successful substrates transported to the Glenelg sewage treatment plant digesters. The presentation will explain the implications of co-digestion for South Australian Waters‘ sewage treatment plant operations and generators of the high-strength organic substrate materials.
TOPIC: Developing co-digestion – a Yarra Valley Water approach
PRESENTED BY Maarten de Beurs, Environmental Scientist, Yarra Valley Water
Maarten’s roles have ranged from greenhouse gas strategy and environmental management system oversight to sewage treatment plant planning. He is currently project manager for the exciting and innovative Waste to Energy project that covers co-digesting sewage and trucked organic waste. Maarten will present on the drivers for investigating co-digestion, the process and barriers to developing co-digestion capability.
TOPIC: The new Statewide Organics Strategy – an integrated Waste Management Strategy within Victoria
PRESENTED BY Val MacGregor, Project Lead, Waste Strategy, Sustainability Victoria
Val MacGregor is of the Chair of the National Framework for Energy Efficiency (NFEE) Trades and Professions Training and Accreditation Committee that has been developing courses in energy efficiency for electricians, facility managers, engineers and heating, ventilation and air conditioning specialists and works with other NFEE committees to incorporate energy efficiency training into other policy areas. Val will summarise the Victorian governments Statewide Organics Strategy which aims to significantly reduce organics to landfill. She will also outline the government’s approach to organics management across in-vessel composting facilities, improved kerbside organics collection systems and market development in major provincial centres.
TOPIC: Anaerobic digestion technology
PRESENTED BY Bill Barber,Technical Director – Biosolids and Wastewater at ANZ/AECOM
Having written for numerous publications and textbooks on waste-water treatment, Bill is internationally recognised for his knowledge of biosolids. He has developed modelling tools for carbon footprinting and anaerobic digestion which are now recognised in the UK water industry. Bill will introduce the subject of anaerobic digestion and the choice of material for co-digestion, benchmarking against sewage sludge from waste-water treatment. He will discuss European environmental incentives, including tax incentives, enhanced capital allowance and carbon trading schemes. He will also outline the latest progress in introducing techniques for co-digestion plus the potential barriers to adoption.
TOPIC: Technical overview of anaerobic processes for sludge digestion and waste-to-energy technologies
PRESENTED BY Erik Van Driel, Senior Process Engineer, Aquatec Maxcon Pty Ltd
Eric is a waste-water professional who has been involved with design, commissioning and R&D of many anaerobic projects in brewery, food as well as pulp and paper projects in a number of countries for more than 25 years. During his years at Aquatec Maxcon and GHD he designed several industrial wastewater projects with key involvements in large industrial projects including Yatala Brewery, Castlemaine Perkins, Smiths Food Group and Visy Paper. Eric will present a technical overview of a new anaerobic process including sludge digestion and waste-to-energy technologies plus other related processes for nutrient recovery.