河道绿化废弃物资源化利用研究  

Innovative research on the recycling and utilization of river greening waste

作　　者：邸琰茗 伊锋 杨子超 王晶 吉利娜[4] DI Yanming;YI Feng;YANG Zichao;WANG Jing;GI Lina(Beijing Drainage Management Center,Beijing 100195,China;Beijing Water Authority,Beijing 100035,China;Beijing River and Lake Basin Management Center,Beijing 102600,China;Beijing Management Diversion of North Grand Canal,Beijing 101100,China)

机构地区：[1]北京市排水管理事务中心,北京100195 [2]北京市水务局,北京100038 [3]北京市河湖流域管理事务中心,北京102600 [4]北京市北运河管理处,北京101100

出　　处：《北京水务》2023年第2期26-32,共7页Beijing Water

基　　金：北京水务青年科技骨干人才培养计划资助。

摘　　要：针对北京市河道日常管理中绿化废弃物资源化处置问题,选取北运河、镜河、通惠河、温榆河和运潮减河等5条河流绿化废弃物及底泥共30个样品,对比在1∶0.3、1∶0.5不同料土配比,设备12、24、48 h不同发酵时间条件下发酵产物的指标变化。结果表明,河道绿化废弃物资源化处理后,各项指标均符合GB 33891—2017《绿化用有机基质标准》,基本满足应用于封闭绿地的绿化种植有机基质,及喜碱性土壤的植物种植或者酸性土壤改良条件;整体河道上游及支流绿化废弃物发酵产物全氮和总养分(氮+磷+钾)指标略低于下游北运河,主要与河道排水水质、面源污染及城市化水平等因素相关;料土比和发酵时间作为单一变量对发酵产物的养分含量具有规律性变化,综合推荐1∶0.3的料土比和24 h发酵时间为资源化处理的最优技术方案。该研究可为河道管理部门绿化废弃物资源化提供参考依据。In view of the problem of resource disposal of green waste in the daily management of Beijing's river courses,30 samples of green waste were selected from the five rivers of the North Canal,Jinghe River,Tonghui River,Wenyu River and Yunchao River.Detect the content of heavy metals and nutrients in the fermentation products under the conditions of 1:0.3,1:0.5 material and soil ratio,and 12 hours,24 hours and 48 hours of equipment fermentation time.The results showed that after the resource treatment of river greening waste,all indicators met the requirements of GB 33891-2017 Organic Substrate Standard for Greening,basically meeting the conditions of planting organic substrate for closed green space,planting plants in alkaline soil or improving acid soil.The indicators of total nitrogen and total nutrient(N+P+K)of the fermentation products of green waste in the upper reaches and tributaries of the whole river are slightly lower than those of the North Canal in the lower reaches,which are mainly related to the water quality of river drainage,non-point source pollution and urbanization level.As a single variable,the ratio of material to soil and fermentation time have regular changes in the nutrient content of fermentation products.It is recommended that the ratio of material to soil of 1:0.3 and the fermentation time of 24 hours be the best technical scheme for resource treatment.This study can provide reference basis for river management departments to recycle green waste.

关 键 词：城市河道 绿化废弃物 资源化 创新优化 

分 类 号：X703[环境科学与工程—环境工程]