Construction and demolition waste recycling in developing cities: management and cost analysis

Navarro Ferronato, Rocio Clara Fuentes Sirpa, Edith Gabriela Guisbert Lizarazu, Fabio Conti, Vincenzo Torretta

Research output: Contribution to journalArticlepeer-review

Abstract

In Bolivia, construction and demolition waste (CDW) is unmanaged. The current research implemented a CDW flow analysis and a cost assessment in the city of La Paz, aiming to compare future recycling scenarios. Lack of data is challenging; therefore, a review of 31 international studies has been conducted. Results report that the waste generation rate (WGR) of concrete residential buildings can be of about 91.9–113.3 kg m−2 for construction and about 867.2–1064.8 kg m−2 for demolition. In addition, positive correlation was found in national WGR with number of inhabitants and the GDP. By these results, it was estimated that about 271,051–349,418 tonnes of CDW are potentially generated yearly in La Paz, about two times more than the CDW projected by local authorities. By the scenarios analysis, it was estimated that 56.1–71.1% of the inert aggregates can be recycled. The cost of the system is estimated between 7.8 and 31.1 USD tCDW−1, for a total annual cost (20 years horizon) of about 2.3–9 million USD y−1 depending on the management scenario. In the best scenario, an average fee of less than 1% of the current costs of a flat in La Paz can be required, potentially affordable for the local economy. The most attractive scenario involves the source separation of recyclable materials and the hybrid organization of stationary and mobile recycling facilities. Results show that a CDW management can be implemented in La Paz to foster a circular economy in developing cities.

Original languageEnglish
JournalEnvironmental Science and Pollution Research
DOIs
StateAccepted/In press - 2022

Bibliographical note

Funding Information:
The authors thank the Municipal Secretary of Environmental Management of the Autonomous Municipal Government of La Paz and the Italian non-governmental organization COOPI, La Paz field office, for their cooperation in implementing the research within the framework of the project “LaPazRecicla. Integrated approach to the waste management in Bolivia: development of new technologies to foster circular economy in the municipality of La Paz,” led by COOPI.

Funding Information:
Open access funding provided by Università degli Studi dell'Insubria within the CRUI-CARE Agreement. This publication was produced with the financial support of the Italian Agency for Development Cooperation in the frame of the project “LaPazRecicla. Integrated approach to the waste management in Bolivia: development of new technologies to foster circular economy in the municipality of La Paz”—AID 011908. Its contents are the sole responsibility of the authors and do not necessarily reflect the views of the Agency.

Publisher Copyright:
© 2022, The Author(s).

Keywords

  • Circular economy
  • Developing countries
  • Latin America
  • Solid waste management
  • Sustainable development
  • Waste flow analysis

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