摘要
为了更加高效的处理城市园林绿化垃圾,使其达到环保资源化利用的目的,以某城市绿化垃圾为研究对象,开展了绿化垃圾堆肥实验,并同时进行了有机肥对草本植物生长的影响实验。结果表明,在相同的堆肥实验条件下,随着绿化垃圾堆肥时间的延长,肥料的温度先升高后降低,碳氮比和含水率逐渐降低,有机质含量先降低后升高,氮磷钾的含量均逐渐升高。当堆肥实验结束时(60d),肥料中的含水率可以降低至22.4%,有机质含量达到48.9%,总养分含量达到10.52%,各项性能指标均满足标准NY 525-2012《有机肥料》中的要求。绿化垃圾堆肥实验制备的有机肥能够较好的促进草本植物的生长,随着土壤中有机肥加量的不断增大,植物的株高和叶绿素含量均逐渐增大。研究结果表明,将城市园林绿化垃圾进行堆肥处理能够使其达到环保资源化利用的效果。
In order to treat urban landscaping waste more efficiently and achieve the goal of environmental protection and resource utilization,a greening waste composting experiment was conducted on a certain urban landscaping waste as the research object,and the effect of organic fertilizer on the growth of herbaceous plants was also conducted.The results showed that under the same composting experimental conditions,as the composting time of green waste extended,the temperature of the fertilizer first increased and then decreased,the carbon nitrogen ratio and water content gradually decreased,the organic matter content first decreased and then increased,and the nitrogen,phosphorus,and potassium content gradually increased.When the composting experiment was completed(60 days),the moisture content in the fertilizer can be reduced to 22.4%,the organic matter content can reach 48.9%,and the total nutrient content can reach 10.52%.All performance indicators can meet the requirements of the standard NY 525-2012“Organic Fertilizer”.The organic fertilizer prepared in the green waste composting experiment can effectively promote the growth of herbaceous plants.As the amount of organic fertilizer added to the soil continues to increase,the plant height and chlorophyll content gradually increase.The research results indicate that composting urban landscaping waste can achieve the effect of environmental protection and resource utilization.
作者
杜娟
DU Juan(Grandblue City Environmental Service Co.,Ltd.,Shenzhen 518000,China)
出处
《化学工程师》
CAS
2023年第11期35-38,共4页
Chemical Engineer
基金
广东省重点研发计划项目(2020B010193009)。
关键词
绿化垃圾
环保处理
资源化利用
堆肥
草本植物
greening waste
environmental protection treatment
resource utilization
composting
herbaceous plant
