Corporate Responsibility in Practice: Co-processing …
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Fig. 8 Routes from transshipment station to landfill. Source Google Maps (2018)
landfill, they are Estre company responsibility. On average, 3–4 tailings containers
are routed to the landfill per day, and each container holds an average of 20 tons.
4.2 Waste Characterization
The association does not have any control of the quantity of waste received and sold
per month, nor the quantity of tailings sent to landfill. A study conducted by the
SMMA Campo Largo, based on Cavo’s reports on the estimated quantity of waste
collected, showed that the quantity of waste that is collected by selective collection
has a seasonal behavior, and in the summer months increases. However, for the
elaboration of the present study, the data used was from samples that were weighted
for a certain period of time and the average was considered.
4.2.1 Recyclable Waste Characterization
For the recyclable waste characterization, the association was asked to weigh the
quantity of recyclable waste that was separated for one week. From these data, a
daily average of how much was separated was determined (Table 2).
4.2.2 Tailings Characterization
A study was conducted to verify the tailings composition with the goal to analyze
whether it met the prerequisites for co-processing. To perform this characterization
of the tailings, a sample of 23 kg was analyzed and classified (Fig. 9).
Next, the proportion was calculated by the average quantity of tailings separated
per day. The classification, the quantities per kg of the sample, and the monthly
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