水库底泥应用于绿化用土的潜在可行性研究  

Potential Feasibility Study of Applying Reservoir Sediment to Greening Soil

作　　者：韩安龙 张承龙[1] 冯雷雨[2] 潘涛 HAN Anlong;ZHANG Chenglong;FENG Leiyu;PAN Tao(School of Resources and Environmental Engineering,Shanghai Polytechnic University,Shanghai 201209,China;College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]上海第二工业大学资源与环境工程学院,上海201209 [2]同济大学环境科学与工程学院,上海200092

出　　处：《上海第二工业大学学报》2024年第3期264-271,共8页Journal of Shanghai Polytechnic University

基　　金：上海城投水务(集团)有限公司科研项目(KY.YS.22.0002)资助。

摘　　要：选用居民饮用水水库中的底泥作为绿化用土,经检测得知底泥中的有害成分低于《绿化种植土壤》(CJ/T340-2016)。水库底泥经烘干破碎后过40目标准筛网,掺加陶粒和椰糠,在是否掺入有机肥的因素下设计两组正交实验,同时以含水率为51%~60%的湿水库底泥直接掺入作为对照实验,分别种植小白菜、矮脚黄和五月慢。根据3种蔬菜的生长发芽时间,观察记录蔬菜4 d的发芽数、8 d蔬菜种子的存活发芽率。实验结果表明水库底泥经烘干破碎预处理后,掺入有机肥更有利于蔬菜种子发芽,其中小白菜的生长发芽情况最好,8 d平均存活发芽率为85.6%,五月慢次之,为65.5%。而含水率为51%~60%的湿水库底泥,混合有机肥,蔬菜种子的存活发芽率不超过60%。实验证明了蔬菜种子可以在水库底泥中存活,居民饮用水水库中的底泥可以应用于绿化用土。The sediment from the residential drinking water reservoir was selected as the soil for greening,and the harmful components in the sediment were tested and known to be lower than the“Planting soil for greening”(CJ/T 340-2016).Reservoir sediment was dried,fragmented and passed through a 40-mesh standard sieve,mixed with ceramsite and coconut coir,and two sets of orthogonal experiments were designed under the factor of whether or not it was mixed with organic fertilizer,while direct mixing of wet reservoir sediment with a moisture content of 51%-60%was used as a control experiment to grow Chinese-cabbage,Short-feet-yellow and Mayslow,respectively.According to the growth and germination time of three kinds of vegetables,observing and recording the germination number of vegetables for four days,and the survival germination rate of vegetable seeds for eight days.The results of the experiment show that the reservoir sediment pretreated by drying and crushing is more conducive to the germination of vegetable seeds with the admixture of organic fertilizer,in which the growth and germination of Chinese-cabbage is the best,the average survival germination rate at eight days is 85.6%.May-slow followed by,is 65.5%.In contrast,the survival and germination of vegetable seeds in wet reservoir sediment with a water content of 51%-60%,mixed with organic fertilizers,do not exceed 60%.This experiment proves that vegetable seeds can survive in the reservoir sediment,and the sediment from residential drinking water reservoirs can be applied to green soil.

关 键 词：水库底泥 绿化用土 蔬菜 存活发芽率 

分 类 号：X705[环境科学与工程—环境工程]