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浑河流域贮存污泥成分特征及演变规律分析
摘要点击 439  全文点击 147  投稿时间:2017-02-21  修订日期:2017-07-25
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中文关键词  贮存污泥  污泥特征  变化规律  农用风险  资源化
英文关键词  storage sludge  sludge characteristics  evolution law  agricultural risk  resource utilization
作者单位E-mail
刘甜甜 哈尔滨工业大学市政环境工程学院,哈尔滨 150090 tian080816@163.com 
崔崇威 哈尔滨工业大学市政环境工程学院,哈尔滨 150090  
赫俊国 哈尔滨工业大学市政环境工程学院,哈尔滨 150090 junguohe@263.net 
唐建 哈尔滨工业大学市政环境工程学院,哈尔滨 150090  
中文摘要
      随着城镇化的加速,浑河流域贮存污泥堆积量逐年增加,对环境产生潜在而长期的威胁.为了实现贮存污泥的资源化、害化处理,开展了贮存污泥成分特征及其随时间变化规律分析.本研究分析了基本理化性质[含水率、pH、挥发性有机物(VS)、总碱度]、营养元素指标(TC、TN、C/N、TK、TP)、微生物组成、重金属含量及形态等指标.结果表明VS及各种营养元素含量均呈现下降的趋势;含水率规律性不明显;pH稳定在7左右;细菌在微生物中占绝对优势,约占90%,厌氧微生物含量增加;Cu、Zn、Cr、Ni、Pb、Cd、As、Hg等重金属含量及形态并未呈现明显的规律性变化,重金属形态主要以残渣态等稳定态存在;Cu的含量超过GB 4284-1984中Cu的最高限值,因此贮存污泥农用风险较大.
英文摘要
      With the acceleration of urbanization, the accumulation of storage sludge in the Hunhe River Basin has increased year by year, creating a potential and long-term threat to the environment. In order to realize the resource-saving and harmless treatment of storage sludge, the composition of storage sludge and the evolvement rule were analyzed and researched. The basic physicochemical properties (water content, pH, volatile organic compounds (VS), and total alkalinity), nutrient index (TC, TN, C/N, TK, and TP), microbial composition, and heavy metal contents and fraction were analyzed. The results showed the VS and various nutrient element contents decreased with the prolongation of storage time, and changes in water content were not obvious, which was independent of the storage time and only relevant to natural conditions. The pH was maintained at around 7, and the bacteria predominated in microorganisms, accounting for about 90%. The content of anaerobic microorganisms increased. The contents and fractions of Cu, Zn, Cr, Ni, Pb, Cd, As, and Hg did not change significantly, but the content of Cu was higher than the Chinese standard for agricultural utilization (GB 4284-1984). Therefore, there is a larger risk of storage sludge for agricultural use. Therefore, the analysis of the composition and evolution of storage sludge in the Hunhe River Basin is of great significance for further resource treatment of sludge.

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