External Reuse of Waste from Foundries-Experience, Limits and Lawsin Eu
Throughout Europe, there is growing interest in reuse of foundry waste. This can be explAlned by a common ambition to achieve a more sustAlnable society, involving savings of natural resources, and different types of legislation, which prohibit the disposal of combustible and organic materials. Other reasons are increasing costs for waste characterisation and disposal. The development of new composting methods means that a number of biological materials can now be composted and converted into soil improvement agents. Foundries set high demands on the sands used in their casting processes and, in the same way, they should be able to supply surplus sand, fully corresponding to customer quality and authorities demands. This means supplying sand to cement, brick, road, compost and soil produceras (etz) , which is free from any foreign materials or lumps. The best method is to extract the sand from the return sand system after shakeout, screening and magnetic separation. By supplying sand meeting the foundries own standards, this will ensure uniform and quality assured customer products. As an alternative, sand may be collected at the shake out and subsequently treated; this, however, is more expensive. The costs associated with re-use are mAlnly the processing and transport costs, but these can possibly be reduced by taking into account the income generated from selling the material. However, the latter in general may be low or close to zero. The further the materials have to be transported, the greater the increase in costs. In order to assess the economic viability of the re-use option, the applicable disposal costs should be taken into account. These differ between various regions in EU and depend on the residue type. Legislation stimulates the recycling of mineral wastes, partly by setting high disposal fees to reduce the amount of residues for disposal. Regulations and laws are still varying in EU.The way authorities handle regulations and laws very between countries and regions in the country. In a long term, regulation should be constitute globally harmonized and not distort free competition. This paper introduces: * Casting Innovation Centre (R&D Centre in Sweden) * Nayvoc-a new greensand wit h 90％ reduction of VOC * Ext ernal reuse of waste in foundries * Foundry sand disposal laws in EU
foundry environment foundry sand external reuse
Mats Holmgren
MD, Swedish Foundry AssociationiSwerea SWECAST AB Chairman WFO com 4 Environmental Protection Chairman CAEF com 3 Common Research
国际会议
69th World Foundry Congress(第69届世界铸造会议 WFC 2010)
杭州
英文
697-700
2010-10-16（万方平台首次上网日期，不代表论文的发表时间）