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Tai-Kang Elementary School (TKES)
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The 2013 and 2014 Sustainable Campus Projects substantially alleviated the waterlogging problems experienced by the low-lying TKES, and TKES has developed environmental education courses based on its success. The subsequent transformation outcomes of the 2015 Sustainable Campus Project were as follows:
1.Improvement of the permeable pavement:
(a) Detention basin, permeable pavement, and infiltration gutters (1,016 m2)
Through permeable nonwoven fabrics, recycled water supply, gravel, and self-funded grass, the playground pavement (the lowest-lying area on campus) was improved. The project has facilitated flood prevention during rainstorms, with the drainage system discharging excessive rainwater.
(b) Permeable grass and sidewalks (62 m2)
Through permeable nonwoven fabrics, recycled water supply, grass bricks, and lawns, the plant stands in front of the kitchen formed a permeable green belt. This green belt not only absorbs waste water from the kitchen, but also provides the kitchen with reclaimed water. In addition, the green belt serves as a source of water in the green area of the first-floor classrooms in the North Building.
(c) Pebble-layered infiltration drainage ditch (61.5 m)
Two east¡Vwest drainage ditches that meet near the playground and flow downstream through a pebble-layered drainage ditch were developed, and the waterlogging and congestion by falling leaves was alleviated.
(d) Pebble-layered drainage ditch (66.8 m)
The banded drainage ditch by the west wall is the main trunk of the TKES drainage system. The original design featured a partial enclosure, which resulted in cleaning difficulties and congestion by falling leaves. To ensure a smooth draining process, TKES repaired the pebble-layered drainage ditch to form an integrated drainage system according to the draining direction.
2. Rainwater harvesting
(a) The school kitchen discharges approximately 1.5 tons of water daily, and with an oil separator, TKES now recycles 0.4 ton of the reclaimed water daily. The recycled water flows back to the green area in front of the kitchen and the permeable green belt that was constructed in 2014. Thus, the waterlogging problem was alleviated, and the need to waterthe green belt was eliminated.
(b) The detention basin is estimated to provide243 m3of underground water storage and 126 m3of surface water storage, which totals 369 m3of water retention. The water storage supports the demand of the transformation area and surrounding plants. After several months of maintenance, the plants have grown in excellent condition; in addition, the waterlogging problem during rainstorms has been eliminated.
Profile
- Tai-Kang Elementary School (TKES)
- System: Elementary
- Report year: 2015
- Area: South Taiwan
- County: Tainan
