Research on Landfill and Composting Guidelines in Kigali City, Rwanda based on China's experience

Due to the population growth and the improvement of life standards, there is a growing concern associated with waste generation in Kigali city. All collected waste goes to the only one landfill in Kigali and the waste composition is dominated by organic waste up to 68%. Some efforts were made to handle solid waste in Kigali City, but there are still some weaknesses related to waste disposal facilities. Most of data used in this paper are collected directly or indirectly from literature, government websites, and institution reports which are related to solid waste management and official media. This paper used a comparative analysis for Kigali city and China in order to propose guidelines that could be referred to improve the design of landfill
and composting plants in Kigali city. This paper is proposing Kigali City to refer to Chinese standards on landfill and composting plants. China has important standards on liner system, leachate collection, cover standards, environmental monitoring standards that can be referred to in construction and monitoring the functionality of a landfill in Kigali city. The materials such as geotextile, Perforated HDPE pipe and others used in China should be tested if they are compatible with soil, weather, and other environment issues in Kigali City before using them. Composting is very necessary in Kigali City because 68% of solid waste generated is organic waste. MSW aerobic static composting standards in China such as moisture content, leachate collection, temperature could be followed in order to introduce the standards of composting in Kigali city, compost can be used in agriculture as 90% of Rwandans are formers.

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