CIWEM is holding a conference titled "Biosolids, the risks & benefits - an update on the latest research" on Wednesday 9th January 2002 at the National Liberal Club, Whitehall Place, London, SW1A 2HE. Using organic materials (biosolids, sewage sludge, composts and manures) on land to maintain soil structure and fertility and to complete nutrient cycles is an important part of sustainable development. But we need to understand and manage the risks and we need to know how to make best use of the beneficial constituents.

There has been a huge amount of research into wastewater biosolids and some of it can be extrapolated to understand the other organic residuals. Much of this important work will be presented at this seminar and reviewed by experts actively involved with it.

This conference will include a €1.25 million research project into biological risk including the effectiveness of treatments for a wide range of pathogens and a risk assessment to the point of harvest. The kinetics of die-off during treatment and after application to soil have also been researched – how sanitary is soil? A long term field trial into the effects of metals on crops and soil micro-organisms (€3 million) over 9 sites with contrasting soils and climates will be reported – what is safe? The subject of organic micropollutants is wide and complicated – what is really out there and what is their significance? – one of the world’s experts will be reviewing this area. The conference will also cover research that has quantified the potential benefits in terms of major and minor nutrients and the effects on soil physical properties. Farmers and other users know that there are benefits because they see the effects; in order to make the best use of them we need to quantify effects. Hear how developments in precision farming enable maximum benefit to be obtained whilst minimising the risk of nutrient loss.

The conference venue is very conveniently located in central London. Come and learn about the latest research and development and discuss it with experts doing the work. The price is modest – only £139 for CIWEM members and £199 for others (inclusive of VAT). For more details email [email protected]

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