Abstract
Material and heavy metal balance in a MRF of household bulky waste were estimated. Nine truck-loads of waste were shredded separately, and recovered fractions of materials were weighed. Metal contents were analyzed for every waste material. By composition analysis of oversize and undersize of a Trommel separator, up to 40 percent of combustible materials was transferred into undersize which is disposed of in landfill, while transfer rate of incombustible material into oversize was less than 20 percent. Mass balance calculated based on the number, composition, and average weight were well correlated with measured values, but weights were underestimated. Finally, contribution rates of manufactured goods for heavy metals in bulky waste were estimated.
