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1.3 Waste Wood Arisings 182 Evaluation of Opportunities for Converting Indigenous UK Wastes to Wastes and Energy AEA/ED45551/Issue 1 Table 98 Summary of the main reports that investigate arisings of waste wood from Construction and Demolition Activities. Source Data Quality Findings TRADA: wood residues – waste or resource? 1999 304 Recycling of construction materials (IDE and NFDC), IDE, 1990 305 Nottingham Trent University Study 306 Environment Agency for England and Wales, Survey on wood waste from the Construction and Demolition sector 307 Enviros’ Study of Northern Ireland’s Construction and Demolition waste, 2001 308 • Construction waste data originates from BRE’s SmartWaste method: visual inspection of skip contents. • Data quality was judged as ‘very poor quality’, and containing considerable uncertainties. Therefore this data has not been used in subsequent discussions. • Demolition waste estimates rely on the compositional data gathered through a desk data gathering exercise by the Institution of Demolition Engineers (IDE) in 1989. Total demolition waste also established from this survey. • Data quality was judged as ‘very poor quality’, and containing considerable uncertainties. Therefore this data has not been used in subsequent discussions. • The study measured the wood content of C&D waste stream together with waste from industries supplying construction products. Therefore it is not possible to know the composition of waste arising wholly from construction and demolition. • Composition established by manually sorting and weighing small skip contents in Nottingham in three successive years. • The quantities of waste sorted as part of this work were low, and the data quality was assessed as having considerable uncertainties. • Considered C&D arisings for Wales in 2005-6. • Obtaining data was not straight forward as many companies did not keep records, or take an interest in responding to the survey. • Data is from a survey at the point of disposal of C&D wastes, and a survey based on point of arising. • Enviros indicated that this figure is probably an underestimate of the true figure, since some wood would have been categorised as “other C&D wastes including mixed wastes.” • It should be noted that there are a number of assumptions in the estimates which could affect the quality of the estimation, but the data was assessed as being of reasonable quality. Woodwaste arisings in Scotland – • Taking the annual C&D tonnage of 6.28 million tonnes and assuming 2% is waste wood. • Construction wood waste estimates were 25.77% and 19.3%. • Using the lower estimate of 19.3%, as a fraction of 10 million tonnes total UK construction waste arisings. ⇒ Construction: 1,930,000 tonnes • Identified that 7% of demolition waste arisings were wood. • Multiplying this percentage by the total demolition waste of 25 million tonnes yields an arisings figure of: ⇒ Demolition: 1,875,000 tonnes • An estimated average wood composition of 12.44% was identified. • As this value includes waste from the construction products industry, it is likely to be a high estimate. • Of the 12.2 million tonnes produced in this period, 3% of C&D waste was wood. ⇒ 366,000 tonnes. • Identified waste wood to be 1.5% of construction and demolition waste, as a minimum figure. • Waste Watch - % of C&D waste that is wood is 2% ⇒ 125,600 tonnes 304 This reflects TRADA’s comments on collection of wood waste information, Riddoch S TRADA: wood residues – waste or resource? 1999. 305 Recycling of construction materials – Joint survey by Institute of Demolition Engineers and National Federation of Demolition Contractors (IDE and NFDC), IDE, 1990. 306 A comparative study of the quantities of construction waste arising in large and small skips in the Greater Nottingham area, Nottingham Trent University and APT for ShanksFirst Wastes Solutions and Nottingham City Council, 2001. 307 A survey on the arising and management of construction and demolition waste in Wales 2005-06, Environment Agency, 2006, http://www.environment-agency.gov.uk/research/library/publications/33979.aspx 308 Construction and Demolition Waste Survey, Enviros Consulting Ltd for the Northern Ireland Environment and Heritage Service (NIEHS), http://www.ni- environment.gov.uk/construction_and_demolition_waste_survey_northern_ireland_2001.pdf.
Evaluation of Opportunities for Converting Indigenous UK Wastes to Wastes and Energy AEA/ED45551/Issue 1 Remade Scotland, 2004. 309 • No explanation for the figure of 2%. BigREc Survey – A survey of the UK reclamation and salvage trade 2007 310 Table 99 Estimates of industry specific waste wood arisings • Generated estimations of reclaimed and salvaged wood from a survey conducted in 1998, BigREc Survey, Salvo and BRE. • Data was gathered from postal surveys with low response rate. • The methodology of how the responses were grossed up to a national figure is unclear, which makes it difficult to rate how reliable the estimate is. • It is the only available data. • Total salvaged wood in the UK estimated to be 634,000 tonnes. C&I Industry Data Quality Waste Wood Arisings (tonnes) Furniture Manufacturing Sector 311 • Covers UK, 2000 – 2003 530,511 • Data quality is either containing considerable uncertainties, or is poor. Manufacture of panelboards (MDF and chipboard only) 312 • No estimate is made of how much of this waste is used for heat or power within the panel board industry or of the quality of the wood. 1,107,074 • Data covers the whole of UK, and is of ‘good quality’. Manufacture of wooden products for the construction industry 313 • Figures can be broke down into: • 181,522 tonnes (England and Wales), 201,298 • 17,991 (Scotland) and • 1,785 (Northern Ireland) • Data contains considerable uncertainties or is of poor quality. Manufacture of wooden • Data covers the whole of the UK, and contains considerable uncertainties or is of poor quality. 40,000 packaging 314 Manufacture of other products of wood • EA waste production survey model run for Nikitas et al (2005) covering England and Wales 296,232 Production of Railway Sleepers • From Nikitas et al (2005) own study. 26,000 • Data covers the whole of the UK and is of ‘good quality’. Utility poles • Data covers the whole of the UK. 23,500 • Several surveys performed, but few took account of regional density variations. • Nikitas et al corrected for this, and is believed to be the best estimate. Wood waste from ‘other’ C&I • Environment Agency’s waste production Survey, covering England and Wales. No information 2,552,312 arisings available for Scotland and Northern Ireland. 309 Woodwaste arisings in Scotland – assessment of available data on Scottish woodwaste arisings 310 BigREc Survey, A survey of the UK reclamation and salvage trade, 2007, http://www.crwplatform.co.uk/conwaste/assets/Publications/BigREcfullreport.pdf 311 Furniture manufacture sector estimate is based on an average of three studies: Evaluation of waste production, utilisation, and brokerage potential within the UK furniture industry, FIET, 2002; Wood waste recycling in furniture manufacturing – a good practice guide, BFM, 2003; The use of microwave technology for the recovery of wood fibre from MDF, FIRA, 2004 312 Determining the market share of recycled materials – Stage 2 case study report, Esys Consulting, 2004 313 Environment Agency waste production survey 1998 314 Based on “Trada- Turning a blind eye?” report, 2001 183
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