Measured as the percentile of the waste re-sorted and expressed in kg per person per hour.
- Expected Value – 60-80 kg / person / hour with Methodology-A & 80-120 kg / person / hour with Methodology-B
- Acceptable average – >90%
Averages by %
Averages by Weight
Intervenors
- True increase expected when segregation rate of waste delivered increases.
- Apparent increase chiefly due to errors in re-sorting.
- True decrease chiefly due to lack of segregation at source and high moisture content of waste stream and inadequate training among re-sorting personnel, also electrical and mechanical failures.
- Apparent decrease chiefly due to apathy and lack of supervision.
Actions to be taken
- Check weighment procedures in the Resource Recovery Centre.
- Train and re-train personnel involved in the re-sorting process and intensify supervision.
- Liaise with personnel involved in collection and transport to improve segregation rates and decrease moisture content.
- Conduct individual supervisory checks on personnel involved in re-sorting and take appropriate corrective measures.
Confounders
- Machinery breakdown can show a lower than actual re-sorting rate as the material re-sorted cannot be accounted for by weighment.
- Single special streams of certain material can inflate the re-sorting rate.
- Special circumstances, public holidays in particular, interfere with the observations.
