文章摘要
毕峰,李相儒,韩泽东,秦勇,徐钢,屠翰,吴伟祥.我国农村易腐垃圾机器成肥产品质量评价——以杭州市为例[J].农业环境科学学报,2018,37(5):1016-1022.
我国农村易腐垃圾机器成肥产品质量评价——以杭州市为例
Quality evaluation of mechanical composting products for putrescible wastes in rural areas in China: A case study in Hangzhou
投稿时间:2018-01-09  
DOI:10.11654/jaes.2018-0052
中文关键词: 农村  易腐垃圾  机器成肥  质量评价
英文关键词: rural area  putrescible waste  mechanical composting  quality assessment
基金项目:杭州市农办项目(515401-C51701);国家水体污染与治理重大专项(2014ZX07101-012)
作者单位E-mail
毕峰 浙江大学环境与资源学院, 杭州 310058  
李相儒 浙江大学环境与资源学院, 杭州 310058  
韩泽东 浙江大学环境与资源学院, 杭州 310058  
秦勇 浙江大学环境与资源学院, 杭州 310058  
徐钢 杭州市人民政府农村能源办公室, 杭州 310020  
屠翰 杭州市人民政府农村能源办公室, 杭州 310020  
吴伟祥 浙江大学环境与资源学院, 杭州 310058 weixiang@zju.edu.cn 
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中文摘要:
      对杭州市6个区(县、市)12个实施农村生活垃圾分类与易腐垃圾机器成肥处理的乡镇站点肥料产品进行了系统的调查取样分析。结果显示:杭州市农村易腐垃圾机器成肥产品的理化性质中含水率、pH、电导率(EC)、有机质含量、总养分含量分别为29.9%±15.9%、6.4±0.9、(7.14±2.28) mS·cm-1、74.9%±14.7%、6.16%±1.48%;重金属(As、Hg、Pb、Cr、Cd)含量除1个站点Pb超标外,其他均符合《有机肥料》(NY 525-2012)标准;腐熟度指标中胡敏酸/富里酸(HA/FA)、种子发芽率和种子发芽指数(GI)平均值分别为0.95±0.41、36.1%±40.4%、17.8%±28.1%。研究表明,杭州市农村易腐垃圾机器成肥产品的理化指标除含水率外,其他指标均可满足《有机肥料》(NY 525-2012)的要求;然而,75%左右的机器成肥处理站点其肥料产品腐熟度根本无法满足有机肥料标准的基本要求。因此,现阶段我国农村易腐垃圾机器成肥设备工艺亟需升级改造,以确保其产品的腐熟度满足相关标准要求。
英文摘要:
      In this study, product qualities of 12 mechanical composting stations for rural putrescible waste treatment in 6 districts(counties or county-level cities) in Hangzhou were investigated. Results showed that pH, moisture content, electrical conductivity(EC), organic matter content, and total nutrient content of the mechanical composting products were 6.4±0.9, 29.9%±15.9%,(7.14±2.28)mS·cm-1, 74.9%±14.7%, and 6.16%±1.48%, respectively. The concentrations of As, Hg, Pb, Cr, and Cd in the mechanical composting products were all lower than the maximum values in the standards for "Organic Fertilizer"(NY 525-2012) with the exception of Pb for one station. The maturity indices of the ratio of humic acid to fulvic acid(HA/FA), seed germination rate, and Germination Index(GI) were 0.95±0.41, 36.1%±40.4%, and(17.8±28.1)%, respectively. These results showed that nearly all the physicochemical properties of the mechanical composting products investigated met the relevant requirements shown in the standard of "Organic Fertilizer"(NY 525-2012), excluding moisture content. However, 75% of the composting products from the 12 stations did not meet the basic requirements of the maturity index for organic fertilizer. Therefore, currently, it is of great importance to update the technology for mechanical composting of rural putrescible waste to ensure that the maturity of its products meets the relevant standard requirements.
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