Vegetable waste to value add products including biogas

The document details a project facilitated by the Western Cape Industrial Symbiosis Programme (WISP) where Global Energy installed an anaerobic digestion plant at Rennie Farms. The project converts 1.5 tonnes of daily vegetable waste into biogas for combined heat and power, as well as digestate for soil enhancement and irrigation water. The initiative resulted in R319,740 annual savings in landfill fees and averted 876 tonnes of fossil greenhouse gas emissions per year.

• The project utilized a capital investment of R1.2 million to establish an anaerobic digestion plant that processes 1.5 tonnes of organic vegetable waste daily from Rennie Farms.
• The anaerobic digestion process produces several value-add outputs: biogas for combined heat and power, a solid fraction used as a soil enhancer, and approximately 900 litres of nutrient-rich water per ton of processed tomato for irrigation.
• The project delivered significant economic and environmental benefits, including the annual saving of R319,740 in landfill fees and the aversion of 876 tonnes of fossil greenhouse gas emissions (CO2e) per year.
• The project was driven by a forthcoming 100% organic waste-to-landfill ban scheduled to take effect in 2027, increasing the need for on-site treatment solutions.

APA

GreenCape (n.d.). Vegetable waste to value add products including biogas. https://greencape.co.za/wp-content/uploads/2022/10/WISPCase-Study_Recycled_Global_energy_2_7_20-v2-3.pdf

Chicago

GreenCape. Vegetable waste to value add products including biogas. n.d. https://greencape.co.za/wp-content/uploads/2022/10/WISPCase-Study_Recycled_Global_energy_2_7_20-v2-3.pdf.

Wikipedia

{{cite report |author=GreenCape |title=Vegetable waste to value add products including biogas |url=https://greencape.co.za/wp-content/uploads/2022/10/WISPCase-Study_Recycled_Global_energy_2_7_20-v2-3.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{greencapendvegetable, author = {{GreenCape}}, title = {{Vegetable waste to value add products including biogas}}, institution = {GreenCape}, url = {https://greencape.co.za/wp-content/uploads/2022/10/WISPCase-Study_Recycled_Global_energy_2_7_20-v2-3.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }