desilting material是什么意思

用法例句

Effect of dredging engineering on water environmental capacity of Lake Dongting;

疏浚对洞庭湖水环境容量的影响分析

Influence of sediment dredging on the ecotoxic effect of lake sediments;

底泥疏浚对湖泊沉积物的生态毒性效应的影响

Dredging and After-treatment of Deposits Contaminated by Minerals;

矿质污染沉积物疏浚及后续处理问题的探讨

A simple talk on project of Changnian shipping that An to Mao course qixingdui beach dredge and construct;

浅谈常鲇航运工程安-茅航线七星堆滩疏浚施工

The control project of MouShan Lake is introduced,including water supplying,flood control and ecology environment,and some relevant issues such as lake dredge,ecology repairing and water quality monitoring,etc.

湖泊是水资源承载力和水环境承载力的重要组成部分,搞好湖泊治理是非常迫切的工作,介绍了牟山湖概况以及牟山湖人供水水源、防洪除涝和生态环境的治理工程目标和内容,对治理工程中有关湖泊疏浚、生态修复、水质监测等技术问题进行了探讨。

Taking the home-made "1750m 3/h Cutter Suction Dredger" as the basis model dredge simulator, the cutter suction dredge simulator, which has an operating console similar to that in the operation cab of the basis dredger, is designed and manufactured.

绞吸式挖泥船疏浚作业仿真训练器以国产“175 0m3 /h绞吸式挖泥船”为仿真母型船。

Research on variety of plankton community prior and post sediment dredging in Nanhu Lake,Changchun;

底泥疏浚前后长春南湖浮游生物群落变化研究

Sediment dredging can effectively lower the contents of nutrient,heavy metals and persistent organic pollutants in sediment,but resuspensiou of sedi- ment during dredging will induce the release of pollutants from sediment to the water column.

底泥疏浚的效果至今仍存在很大争议,其中之一是疏浚后所产生的环境效果有可能偏离人们的期望,疏浚能够有效的削减沉积物中营养物、重金属和持久性有机物等污染物含量,但疏浚过程中会引起污染物向水体释放,疏浚后的界面过程有可能对疏浚效果产生较大影响,底泥疏浚对水体富营养化的控制有成功的经验也有失败的教训,不同的湖泊疏浚后对营养盐释放的控制效果不同。

Results show that the water quality of Nanhu lake in Changchun is significantly improved after sediment dredging from 2000 to 2002,and the indices of water quality in water lily area even reach or approach to the third level of GB3838-2002.

结果显示,南湖在经过2000~2002年的底泥疏浚治理后,水质状况有了显著的改善,特别是荷花区水域的一些监测指标已经达到或接近GB 3838—2002Ⅲ类水体标准值;但游泳区和湖心区的水质仍表现出富营养化,水体中TP,TN超标现象较为严重。

Ecosystem recovery scheme should firstly conduct precise ecological dredging in partial thin layer of heavy-polluted bed mud, which create a necessary eco-environment condition for further ecosystem recovery.

太湖的水环境恶化与生态系统退化已制约了湖泊水资源和水环境的可持续利用,湖内水生态修复工程首先要解决重污染底泥的局部薄层精确生态疏浚,为后续生态修复创造必要生境条件;湖盆水体生态修复系统应与湖滨带、生态护岸建设融为一体,维护水生态系统自我调节、更殖再生和有序结构。

Some approaches to utilize dredged sediment as resource,such as land utilization,producting construction material and fill material and wastewater treatment material,were analysed.

介绍了疏浚底泥资源化利用的途径,对其土地利用、作建筑材料和填方材料及污水处理材料等资源化利用进行了可行性分析。

Ferric trichloride and PAM were used to dewater the dredged sediment.

采用三氯化铁(FeCl3)和聚丙烯酰胺(PAM)作为河流疏浚底泥的脱水药剂。