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Single - stream versus dual stream recycling management: Do the benefits justify the mean...
<br />Unadjusted Recycle Rate Trend for Single- Stream
<br />Counties
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<br />A quantitative research approach was used that compared several years of Department of
<br />Environmental Protection data related to municipal solid waste handling in the state of
<br />Florida, specifically data from 1996 to 2 00 9. Comparisons of the data between counties
<br />that had converted to single stream and counties that still operated dual stream were
<br />carried out to identify possible trends in recycling rates and contamination rates. The
<br />specific counties that converted to single stream were erevard, Froward, Charlotte,
<br />Collier, Escambia, Martin, Miami Dade and Olaloosa. Dual stream counties were Duval,
<br />Hillsborough, Marion, Orange, Pasco, Pinellas, St. Lucie and Sarasota. Figure r illustrates
<br />the unadjusted recycle rate trend for the eight single stream counties while Figure 2
<br />shows the unadjusted recycle rate trend for the eight dual stream counties.
<br />The trends for counties that still use dual stream recycling methods closely resemble their
<br />single stream counterparts. Samplings of eight dualetream counties that have similar
<br />populations and collect similar amounts of municipal solid waste (MS W) show that they
<br />are trending between 3o and qo percent (Figure 2) while single stream counties are
<br />trending between 13 and 39 percent (Figure 1). There also seems to be very little
<br />fluctuation of the rates from year to year. The difference, however, is that the highest
<br />recyclable collection rate for a county that uses single stream recycling is Martin County
<br />at 39 percent while the highest recyclable collection rate for a county that uses dual l -
<br />stream recycling is Duval County at 45 percent.
<br />Unadjusted Recycle Rate Trend for Dual- Stream
<br />Counties
<br />In addition, Hillsborough, Pasco, St. Lucie, and Sarasota counties all have recycling rates
<br />above 38 percent. This seems to challenge the conventional thinking that single stream
<br />recycling brings in more material since the three counties with the highest percentages of
<br />recyclable material all operate under a dualetream system and use 14 gallon bins.
<br />A look at the rates to determine if the size of the bin had any influence on the recycling
<br />increases or decreases is inconclusive as Froward, Charlotte, Collier, and Escambia
<br />counties all use the 64 gallon bins and experienced increases while Miami Dade County,
<br />which also uses the 64 gallon bins, experienced a decrease. In addition, erevard and
<br />Martin counties experienced increases with smaller bins while Olaloosa County
<br />experienced a decrease. The two counties experiencing the greatest increase, Collier with
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<br />In addition, Hillsborough, Pasco, St. Lucie, and Sarasota counties all have recycling rates
<br />above 38 percent. This seems to challenge the conventional thinking that single stream
<br />recycling brings in more material since the three counties with the highest percentages of
<br />recyclable material all operate under a dualetream system and use 14 gallon bins.
<br />A look at the rates to determine if the size of the bin had any influence on the recycling
<br />increases or decreases is inconclusive as Froward, Charlotte, Collier, and Escambia
<br />counties all use the 64 gallon bins and experienced increases while Miami Dade County,
<br />which also uses the 64 gallon bins, experienced a decrease. In addition, erevard and
<br />Martin counties experienced increases with smaller bins while Olaloosa County
<br />experienced a decrease. The two counties experiencing the greatest increase, Collier with
<br />1971 area ix..... adds,
<br />adv Tag. 39B3n
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