OSC Recycling & Sustainability Service Group

A reflective blog exploring recycling & sustainability initiatives at the Overseas School of Colombo

Archive for the ‘IBDP Geography Class’ Category

Visits to the Pelawatte Scrap Dealer

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Class of 2020 DP Geography students learning about the economics of the scrap and recycling business at our local scrap dealer.

On Monday April 1st the DP1 Geography class visited our local scrap dealer to get a better sense of what happens to school recyclables.  This short field trip followed up a longer two week field investigation  into solid waste patterns in the OSC neighborhood (see separate post). The group of eight students took several bags of mixed paper as well as some folded cardboard. The scrap dealer is based out of an old shipping container on the side of Panipitiya road. Students were able to ask a series of questions and learn more about the economics of recycling from the perspective of this dealer. We also sold our mixed paper (12kg) and cardboard (5 kg) for a grand total of 146 LKR. Students also got a chance to speak with Matt Jackson, a patron and OSC community member. He outlined what he does in terms of collecting and sorting recyclables which are deposited at the dealer. He doe not take any money for his materials.

2019 Data

2018 Data

The class has updated the buying (and selling) costs of the materials that our scarp dealer deals with in. Some prices have climbed while others have decreased since we gathered the same data last year. These are purely based on what our dealer is telling us and we know from past studies that we could probably get better prices at other locations. Our goal, however, is to reduce solid waste and not to earn more money. We remain interested in patterns of recyclables and commodity prices.

 

REFERENCES

Salman, Malaika and Dominic Harding. “Recycling Paper in the OSC and Pelawatte community: A 2018 Update.” Recycling & Sustainability Blog. 22 March 2018. Web.

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Written by ianlockwood

2019-04-03 at 1:22 PM

OSC Neighborhood Solid Waste Study 2019

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Preparing to run a solid waste survey at a modern house east of the OSC campus.

The 2nd semester is a time of class field trips to various recycling and solid waste operations in the OSC neighborhood.  The DP Geography class is preparing to conduct field research in Sinharaja so as a trial they conducted a field survey of solid waste patterns in the OSC neighborhood. There were several stages to this operation:

  1. Taking a preliminary observation-based walk to assess the study area.
  2. Devising the research questions
  3. Creating an appropriate survey using Survey 123
  4. Preparing a base map using OpenStreeMap as well as new 1:10,000 data from the Sri Lanka Survey Department. Revieiwng and updating data on OSM for the OSC neighborhood
  5. Conducting the field work (over two lessons)
  6. Compiling, processing and graphing the data.
  7. Sharing the data in a poster, individual assignments and online (this post)

Field Work Skills task sheet 2019

Screen grab showing Survey 123 raw data and map area.

As a part of the project the class worked with a variety of maps to get a sense of their study area.  OpenStreetMap is a great source but most of the building have not yet been mapped. Previous classes of OSC students have mapped the school campus but the Class of 2020 worked to expand the area. The maps below show the progress that they made on this ongoing project.

 

CONCLUSION

The field study was completed after two blocks of data collection in the OSC neighborhood. Together the class was able to survey 26 different households near to the OSC campus. We have a much better sense of of our neighborhood though it would be good to continue the study and get more houses surveyed. There were a few conclusions.

  • Most residents are getting some sort of municipal solid waste pick up. 23 of 26 respondents(86.5%). Respondents mostly appeared satisfied with this arrangement abut several remembered times when the collection system had broken down in the past 2-3 years.
  • 23 of the 27 (92.3%) respondents are separating waste. This makes sense as it is now required by the municipality.
  • A few residents stated that they did weekly burns of leaves and paper. (3 of 26 or 11.5% households surveyed). However it seems, based on observation, that other items (Tetrapacks, plastic bits) are being mixed in with these burn piles.
  • Only a few households were composting (3 of 26 or 11.5% households surveyed).

 

REFERENCES

“Analysis & Recommendations.” Curious Geographer. February 2019 Web.

ESRI. ArcGIS Book(s). Web.

Hunter College Department of Geography. “The geographic inquiry process: a way to problem solve.” Web.

Nagel, Garrett & Briony Cooke. Geography: For the IB Diploma, 2nd Edition. Oxford: Oxford University Press, Print.

Nagel, Garrett & Briony Cooke. “5 Skills for DP Geography.” Web/PDF.