密閉通風式製造堆肥之技術

Compost Making by Close-airing System

本文介紹的堆肥技術是使用一個可自行組合拆卸之密閉式木箱製造堆肥，木箱以夾心板為材質，外刷油性水泥漆保護，其內部外緣覆以紅泥塑膠布，底部墊以水泥空心磚，空心磚上面蓋以塑膠網，在塑膠網上面裝填堆肥材料，木箱底部外接一部送氣馬達，供每天斷續送風之用。本技術之優點在於木箱密閉可減少臭味外洩招引蒼蠅、及避免雨水淋洗的損失，充填後即可不需添加任何水分而能維持堆肥材料的含水量在50〜60%，且每天送風一小時，可保持箱內呈好氣狀態，如此製造出的堆肥品質甚為良好。此外可節省翻堆所需之人力，且製作一次堆肥僅需45天。此套製造堆肥系統造價成本約需新台幣二萬元（美金八佰元）。

The box of compost was made up by oiled plastic painted plywood. Inner the box was mulched by lumarth plastic cloth, and the concrete blocks put on the plastic cloth, then followed by the plastic net on the concrete block. The materials of composting was ready to fill in the box. The air motor or air compressor was connected beneath the box and aired one hour per day during composting. The advantages of this composting system were to decrease the stink, flies and to avoid the nutrient loss by rain leaching. It could maintain the relative moisture content of materials about 50~60% without adding any other water after filling and the aerobic condition was maintained in the box usually during composting. The labors for turning-over the compost was saved and the time of composting was needed about 45 days once. The price of this system was about 20,000 NT$(800U.S.).