城市绿化废弃物好氧堆肥处理及其应用前景  

Aerobic composting treatment of urban greening waste and its application prospect

作　　者：张文超 Zhang Wenchao(Shaanxi Provincial Land Engineering Construction Group Land Comprehensive Development,Xi’an 710075,China)

机构地区：[1]陕西地建土地综合开发有限责任公司,陕西西安710075

出　　处：《江苏科技信息》2018年第9期45-49,共5页Jiangsu Science and Technology Information

摘　　要：随着城市绿化面积的增加,大量的绿化废弃物加重了垃圾处理场的负担。若通过好氧堆肥处理,这些废弃物可以迅速转化为质地良好的腐殖质材料,将其重新用于绿化带覆盖或土壤改良,可以减少裸露地面蒸发及水土流失,改良土壤结构,提高肥力。文章介绍了国内外对绿化废弃物腐熟堆肥的应用及一项在西安市利用树叶、草屑以及粉碎后的树枝进行好氧堆肥的试验研究。结果表明,在适当控制湿度和通气性的情况下,好氧反应能够在无添加菌种的自然条件下迅速发生,并在较短时期内,将树叶与小颗粒木屑熟化,同时对大块木屑的纤维组织造成一定程度的破坏。绿化废弃物腐熟堆肥的再利用对于城乡生态环境的改善具有重要的推动作用。The disposal of the yard waste has become increasingly a burden to municipal landfills as the expansion of green areas in cities.If composted,the yard waste can be used as surface mulch in city landscaping in order to suppress dust and reduce soil erosion.The applied compost also acts as a soil amendment to improve soil structure and fertility.This paper presents an experimental study on yard waste composting conducted at Xi’an University of Technology.Gathered yard waste materials are locally produced leaves,grass clippings and chipped tree branches.During the experiment,temperature rise inside the compost pile is closely monitored,moisture and oxygen levels are controlled by periodic watering and turning.Without any starters or additives,temperature inside the compost pile rose rapidly soon after the experiment starts.Temperature inside the compost pile of tree leaves and grass clippings rises quickly above 70℃.Inside the compost piles of tree leaves and wood chips,however,temperature remaines low around 50℃.The ambient temperature has only slight effect on temperatures inside the compost piles.

关 键 词：绿化废弃物 腐熟堆肥 温度变化 

分 类 号：S157[农业科学—土壤学]