In 2022, the treated organic waste are 65.51 tons and the items are shown in the first table above. The treatment of organic waste is described as follows:
The organic waste of NCYU comes from food waste and fallen leaves and twigs from environmental cleaning. In terms of food waste, in line with the local environmental protection bureau’s promotion policy “reducing food waste, draining it and recycling it”. The Meal Management Committee of NCYU requires the operators of canteens to reduce the amount of food waste and accurately calculate the serving size including formulating a reasonable number of meal preparations and adjusting the menu. n order to minimize the generation of food waste, large and small food waste buckets are set up in the campus cafeteria and the tea room in the building to collect food waste. After the food waste is collected and drained, it will be registered and delivered by the local government environmental protection bureau to the authorized waste treatment plant. The delivered food waste are used in incineration plants for incineration power generation or processes the material through anaerobic digestion. Cooked food waste can also be purchased by pig farmers and then cooked for pigs feeding. Restaurant sewage will be filtered through a screen to remove vegetable residues, grease and other solid waste. After the seperation, the sewage will be sit、buffered and biodegraded until they meet the standard of discharge water before they are released. In addition, the oil fume is also treated by the oil fume processor. On the other hand, the fallen leaves and twigs are collected and transported to the litter stacking area on campus for composting. When it is necessary, they are crushed by a wood chipper for wood pellet production or slowly fermented and decomposed into humus used as fertilizer for the cultivation of campus planting greening to increase soil fertility. In addition to the standard procedures for waste collection, sorting, recycling, and reuse, Chiayi University has specifically developed and implemented plans for agricultural waste, aiming to achieve a comprehensive waste reduction, resuse and reccycling (3R) approach. We rooted in its agricultural heritage, has formulated specific recycling and reuse strategies for different agricultural wastes. In 2022, we particularly focused on the woodchip substrates used in "space bags" for mushroom cultivation and poultry feathers. Through microbial wet decomposition of these wastes, we combined their metabolites to produce organic cultivation soil. This soil is subsequently supplied for the nutrient requirements of the university's Departments of Agronomy, Horticulture, and Life Agriculture, and also supports the plant cultivation and related courses within the campus. This initiative not only reduces environmental pollution but also contributes to the reduction of carbon emissions.