Characterization of solid waste disposed at Columbia Sanitary Landfill in Missouri

Abstract

Waste sorts were conducted during each of the four quarters (or seasons) of 1996 at the City of Columbia Sanitary Landfill. A detailed physical sampling protocol was outlined. Weight fractions of 32 waste components were quantified from all geographic areas that contribute to the Columbia Sanitary Landfill using a two-way stratification method, which accounted for variations in geographical regions and seasons. Comparisons of solid waste generated between locations and seasons were conducted at the 80% confidence level. The composition of the entire waste stream was 41% paper, 21% organic, 16% plastic, 6% metal, 3% glass and 13% other waste. Paper was the largest composition and glass was the smallest composition for all geographical regions. The result of this study was also compared with a 1987 Columbia, Missouri study conducted by EIERA (1987), with studies conducted in other states such as Minnesota, Wisconsin, Oregon and with national study conducted by the USEPA (USEPA 530-R-96-001, PB96-152 160. US Environmental Protection Agency, Office of Solid Waste, Washington, DC). The results of studies from other states are different from this study due to different local conditions, different methodologies and a different scope. There was a small (5%) increase in per capita weight from 1987 to 1996. The total per capita weight in the present study was 60% greater than the national per capita weight reported by the USEPA (1996) due to that the USEPA report excluded industrial, construction and certain commercial waste. The total per capita weight agrees with the national per capita weight for municipal waste reported by Tchobanoglous (1993), which included industrial, construction and commercial sources. The geographical and seasonal effects on the waste composition are evaluated and discussed. Statistical analysis indicates that waste characteristics are different among geographical regions and seasons. The potential for waste recovery and reduction is also discussed.

Municipal Solid Waste Generation and Characterization in Ensenada, Mexico

“…This figure is higher than that proposed in the Mexican Standard NMX-AA-015-1985 (Quartering Method) [31], yet consistent with other research [4,5,22,23]. These samples were classified, weighed and registered.…”

“…For example, organic waste generated in Portugal accounts for 27.4%, paper accounts for 20.3%, plastics 18%, glass 6%, metals 5%, and textiles 3.8% [36]. In Missouri, USA, the waste composition reported paper at 41%, organics at 21%, plastics at 16%, metals at 6%, glass at 3%, and other waste at 13% [5]. In Cyprus, waste composition reported paper at 24%, plastics at 5%, food scraps at 39%, yard trimmings at 14%, glass at 1.5%, and metals at 2% metals [37].…”

“…As to sample size, Tchobanoglous et al [4] explains that 90-kilogram samples do not change significantly out of the ones taken in sampling of up to 770 kilograms obtained from the same load of waste. Other research carried out shows that samples taken for analysis can be between 90 and 180 kg [3,5,22]. Chung & Poon [23] reports that sample size fluctuates between 20 to 30 kg, 90 kg, 100 to 200 kg, and up to samples of around 5 to 7 tons of solid waste a week.…”

“…Such management includes the selection and operation of equipment for the treatment and handling of waste, and the types of disposal facilities that will allow for energy generation and resource recovery [3][4][5][6][7].…”

Composição dos resíduos poliméricos, pós-consumo, gerados no município de São Carlos, SP

“…A coleta regular é realizada em toda área urbana do município de São Carlos, inclusive nos distritos de Água Ver- Fonte: Adaptado de Gomes [2] , Zeng [3] e COMLURB [4] .…”