1) dredging pump
疏浚泥泵
1.
Reverse design and process simulation of dredging pump impeller;
疏浚泥泵叶轮的反求设计及加工仿真
2) Sediment dredging
底泥疏浚
1.
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
2.
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。
3.
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。
3) dredged sediment
疏浚底泥
1.
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。
2.
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。
3.
Dredged sediment which is composed of upland soil enriched with nutritive organic matters could be used beneficially as soil amendments or manufactured soil for horticultural use rather than discarded as spoil material.
疏浚底泥具有陆地土壤的基本理化性质,富含植物生长所需的各种营养物质,可以用作土壤改良剂或人造土壤,应用于园林绿化。
4) dredged sediment
疏浚泥
1.
In consideration of some disadvantages in conventional methods for treatment of dredged sediment, the method of solidification was adopted for treatment of dredged sediment from the seriously polluted water body of the west Wulihu Lake.
结合室内试验和数值模拟方法对疏浚泥直接堆放和经固化处理两种情况下的二次污染问题进行了对比分析。
2.
In order to minimize the environmental pollution created by the traditional disposal methods of dredged marine sediments,a method was proposed to solidify the dredged sediments for beneficial use.
针对海洋疏浚泥传统抛填中产生的环境污染问题,提出将疏浚泥进行固化处理后转化为土材料进行使用的方法,并对疏浚泥固化后作为土材料的基本力学性质进行了试验。
5) dredged sewage river sediment
疏浚底泥
1.
Pot experiments were conducted to study the physiological and ecological effect of dredged sewage river sediment on horticultural plants — Lolium multiflorum Lam.
通过温室盆栽试验,考察了将天津市大沽排污河疏浚底泥应用于园林绿地后,其对景观园林植物———黑麦草、紫花苜蓿生理特性的影响以及植物对重金属的积累和对有机物的降解情况,并对重金属在土壤中的迁移特性及其对地下水的潜在危害进行了评价。
2.
This is a part of a subject " study on the sludge disposal and the reclamation in the urban dredged sewage river sediment (serial number of project: 043111811)".
众所周知,受污染河道疏浚底泥中含有大量的污染物,尤其是重金属、有机物等污染物的严重超标,是限制底泥资源化的主要因素。
6) dredged spoils
疏浚泥
1.
The optimum mixing proportion study of dredged spoils solidification with fly ash;
粉煤灰应用于疏浚泥固化处理时的最佳配比研究
2.
This paper reviewed the techniques of utilizing dredged spoils, involving those of solidification and construction.
疏浚泥是一种大量发生 ,抛泥处理又会对环境产生污染的废弃物。
3.
A lot of dredged spoils are produced in engineering building,harbor and waterway.
港口、航道的建设和维护工程产生了大量的疏浚泥,如何处理这些疏浚泥已是国内外十分关注的问题。
补充资料：疏浚
| 疏浚 dredging 为疏通、扩宽或挖深河湖等水域，用人力或机械进行水下土石方开挖的工程。广义的疏浚包括用水下爆破法进行的炸礁、炸滩等。人工开挖只适用于可断流施工的小河流。机械施工广泛使用各类挖泥船，有时也用索铲等陆上施工机械。机械疏浚始于1600年，在荷兰鹿特丹港施工中出现链斗式挖泥船的雏形。中国于1889年开始在黄浦江用挖泥船施工。1929年江南造船厂造成链斗式挖泥船。20世纪80年代初期，中国拥有年开挖约3亿立方米的机械疏浚能力。疏浚工程广泛应用于：①开挖新航道、港口和运河。②浚深、加宽和清理现有航道和港口。③疏通河道、渠道，水库清淤。④开挖码头、船坞、船闸等水工建筑物基坑。⑤结合疏浚进行吹填造地、填海等工程。⑥清除水下障碍物。 |
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参考词条