深圳市全海岸线垃圾成分及其特性研究  

Study on the Composition and Characteristics of Waste along the Whole Shoreline of Shenzhen

作　　者：王倩 向静雅 陈钦冬 徐期勇 Wang Qian;Xiang Jingya;Chen Qindong;Xu Qiyong(College of Environment and Energy,Shenzhen Graduate School,Peking University,Shenzhen Guangdong 518055)

机构地区：[1]北京大学深圳研究生院环境与能源学院,广东深圳518055

出　　处：《环境卫生工程》2020年第2期30-36,共7页Environmental Sanitation Engineering

基　　金：国家重点研发计划项目(2018YFC1902903);深圳市科技创新委员会资助项目(JSGG20170822164024506)。

摘　　要：本研究在对深圳260.5 km海岸线实际调研的基础上,将其分为砂质、淤泥、生物、岩基和人工海岸线5类,通过设置采样点和实地采样的方法,对深圳海岸线垃圾的数量、组成、来源、空间分布进行了研究,分析了海岸线塑料垃圾的热值和氯离子含量。结果表明,5类海岸线的垃圾数量密度和质量密度均不相同,平均数量密度为1.21×106~6.16×106个/km2,平均质量密度为2.04×104~9.54×104 kg/km2;深圳海岸线垃圾主要来源于人类海岸活动(82.67%),其中塑料和泡沫塑料是主要组成成分,占比分别为47.05%、28.57%。砂质和淤泥海岸线塑料垃圾氯离子含量在近部最大,分别为3.65、12.46 mg/g,远部最小,分别为1.42、1.56 mg/g;深圳海岸线塑料垃圾的热值普遍较高(31.90~43.78 MJ/kg),具有可资源化利用的潜力。Based on the actual investigation of 260.5 km coastline in Shenzhen,the study divided it into five categories,including sandy,silt,biology,rock foundation and artificial coastline.The quantity,composition,source and spatial distribution of waste along the Shenzhen coastline were studied by setting up sampling points and methods of field sampling,and the calorific value and chloride ion content of plastic waste on coastline were analyzed.The results showed that the quantitative density and mass density of the five categories were different.The average quantitative density was 1.21×106~6.16×106 pieces per square kilometer,and the average mass density was 2.04×104~9.54×104 kg/km2.The waste along the Shenzhen coastline mainly came from human coastal activities(82.67%)and its major composition were plastics and foam plastics,accounted for 47.05%and 28.57%,respectively.The content of chloride ions in the plastic waste of sandy and silt coastline was the largest in the proximal part(3.65 mg/g and 12.46 mg/g,respectively),and the smallest in the distal part(1.42 mg/g and 1.56 mg/g,respectively).The shoreline waste generally had high heating value(31.90~43.78 MJ/kg),which had the potential of resource utilization.

关 键 词：海岸线垃圾 垃圾成分 数量 来源 分布 组成 

分 类 号：X55[环境科学与工程—环境工程]