CAJ | 학술논문

以杭州市城区6条代表性河道为研究对象，通过对河道底泥中的pH、营养盐、有机物和金属污染物含量的监测和分析，总结其变化特征，为城区河道污染治理及底泥疏浚后的处置提供科学的参考依据。研究结果表明，城区河道底泥的pH均在7～8，呈中性偏碱性；部分河道底泥全氮、全磷以及有机质污染较为严重；重金属含量分布不均，Cd、Zn含量普遍较高。上述污染特征说明城区河道尽管进行了大规模的整治，但由于截污纳管不完全及水体流动性较差等原因，底泥沉积和污染速度较快，应加强底泥监测，定期清淤，建立健全长效管理机制，同时进一步深化截污纳管工程，加强环境引配水，推动水环境质量的整体提升。
이항주시성구6조대표성하도위연구대상，통과대하도저니중적pH、영양염、유궤물화금속오염물함량적감측화분석，총결기변화특정，위성구하도오염치리급저니소준후적처치제공과학적삼고의거。연구결과표명，성구하도저니적pH균재7～8，정중성편감성；부분하도저니전담、전린이급유궤질오염교위엄중；중금속함량분포불균，Cd、Zn함량보편교고。상술오염특정설명성구하도진관진행료대규모적정치，단유우절오납관불완전급수체류동성교차등원인，저니침적화오염속도교쾌，응가강저니감측，정기청어，건립건전장효관리궤제，동시진일보심화절오납관공정，가강배경인배수，추동수배경질량적정체제승。
Six representative rivers of Hangzhou urban area were selected as object of study, pH, nutrients, organic matter andmetal pollutants in the river sediment were monitored and analyzed. The variation characteristics of these indexes were, summarized providing a scientific basis for the disposal of urban river pollution control and sediment dredging. The result shows that pH valuesof urban river sediment are between 7 and 8, which means neutral to slightly alkaline; TN, TP and organic matter are seriously polluted in some rivers; the distribution of heavy metal content is uneven and the contents of Cd, Zn are generally higher. Theabove pollution features indicate that despite large - scale renovation, the speed of sediment deposition and pollution is faster due to incomplete of interception in a sewer, poor mobility of water body and other masons. Thus we should strengthen the monitoringof sediment, dredge on a regular basis, establish a sound long- term management mechanism, further deepen the interception in the sewer projects, strengthen environmental cited water distribution so as to enhance the overall promotion of water quality of theenvironment.