产品介绍
产品名称:CMT 多级系统
品牌:Solinst
产地:加拿大
型号:403
使用 CMT 多级系统获取详细的深度离散地下水数据。在一口井中监控多达 7 个区域。
Solinst CMT 多级系统介绍:
这种多级系统可靠、易于安装且价格低廉。它使现场评估人员能够更好地了解三维地下水流和地下污染物的分布。然后可以更精确地针对补救策略,以有效的方式集中精力。
CMT 多级系统使污染物羽流的准确监测更加经济实惠。它提供详细的垂直和水平数据。监控区域设置在需要的地方,单管设计允许区域之间的可靠密封。
有两个系统可用。1.7" (43 mm) OD 聚乙烯管,分成 7 个通道,允许在多达 7 个深度离散区域进行地下水监测。3 通道系统使用相同的材料和结构,但只有 1.1" (28 mm)在直径上。这种窄管是为较小直径的安装而开发的,尤其是用于密封放置的环形空间狭窄的直推式安装。
提供准确的场地 3-D 评估
对了解垂直污染物分布至关重要
允许记录污染物羽流浓度和轮廓的变化
与多个单井相比成本低
尽量减少现场干扰
研究表明,污染物羽流通常很薄且高度分层。也有文献记载,传统的监测井,具有较长的筛分间隔,在整个筛管长度上混合地下水。这可以掩盖真实的污染物浓度和分布。具有短筛选间隔的多层井克服了这个问题。这种高分辨率数据对地下污染提供了前所未有的定义,从而实现更有效且成本更低的修复。来自短筛井的水质数据可产生高质量、可靠的数据。
Solinst CMT 多级系统应用:
通过横断面监测识别垂直和水平污染物分布
适用于高地下水位环境中的浅井
松散土壤或基岩中的多级水采样和水位监测
建筑和采矿现场的脱水影响评估
质量传递计算和质量通量估计
监测自然衰减或修复过程,并记录其有效性
NAPL 站点的 VOC、MTBE 和高氯酸盐监测
确定反应屏障墙、滑铁卢发射器和其他修复方法的**位置
带有特殊井口密封的蒸汽监测
帮助优化补救方案的设计和性能评估
Solinst CMT 多级系统的优势:
成本低,易于安装和使用
无接缝 - 一个光滑的表面,可轻松、有效地密封
单个管内多达 7 个深度离散区域
在需要的位置准确定位端口和密封件
在大型直推式套管和钻孔中快速安装
一个7通道CMT系统可以由两个人在3小时内完成,3通道更快
钻孔未打开以允许交叉污染
使用沙子和膨润土层或 3 通道滤芯确保隔离区域 - 可靠且价格低廉
将产生新污染物途径的风险降低
典型的 3 通道 CMT
安装在覆盖层中,带有膨润土和沙筒
典型的 3 或 7 通道 CMT
安装,使用 从表面回填的膨润土和沙层
Solinst CMT 多级系统的参数:
一个 CMT 系统 - 两种尺寸:
特征 | 7频道 | 3频道 |
油管直径 | 1.7 英寸(43 毫米) | 1.1 英寸(28 毫米) |
监控区域 | **多 7 个 | **多 3 个 |
通道直径 | 6 饼:0.4 英寸(10 毫米)1 六角:3/8 英寸(9.5 毫米) | 3-六角:3/8" (9.5 mm) |
频道音量 | 40 毫升/英尺30 毫升/英尺(中心) | 30 毫升/英尺 |
安装选项 | 沙子和膨润土回填、自然地层、塌陷 | 膨润土和砂、筒、砂和膨润土回填、自然地层塌陷 |
线圈长度(线圈直径 4 英尺) | 100 英尺 (30 m)、200 英尺 (60 m)和 300 英尺 (90 m) | 100 英尺(30 m)和 500 英尺(150 m) |
扶正器尺寸(其他尺寸可选) | 4.4" 标准(112 毫米) | 3.3" 标准(84 毫米) |
建议用于回填安装的钻孔直径 | 4" (100 mm) 及更大 | 3.5 英寸(89 毫米)及更大 |
带密封和砂筒安装的钻孔直径 | 不适用 | 2.8 英寸 - 3.5 英寸(71 毫米 - 89 毫米) |
中文内容来自机器翻译,内容仅供参考,实际内容可参考原厂介绍或以合同为准。
英文原文:
Advantages of Multilevel Systems:
Provide the most accurate 3-D assessment of a site
Vital to understanding vertical contaminant distribution
Allow documentation of changes in the concentration and delineation of contaminant plumes
Low cost compared to multiple individual wells
Minimize site disturbance
Research has shown that contaminant plumes are often thin and highly stratified. It has also been documented that traditional monitoring wells, with long screened intervals blend the groundwater over the entire length of the screen**. This can mask the true contaminant concentrations and distribution. Multilevel wells with short screened intervals overcome this problem. This high-resolution data gives unprecedented definition of the subsurface contamination, resulting in more effective and less expensive remediation. Water quality data from short-screened wells yield high quality, defensible data.
CMT Multilevel System:
This multilevel system is reliable, easy to install and inexpensive. It provides site assessors with a better understanding of three-dimensional groundwater flow and the distribution of contaminants in the subsurface. Remediation strategies can then be targeted more precisely, focusing efforts in the most effective manner.
The CMT Multilevel System makes the accurate monitoring of contaminant plumes much more affordable. It provides detailed vertical as well as horizontal data. Monitoring zones are set where needed and the single tube design allows reliable seals between zones.
Two systems are available. The 1.7" (43 mm) OD polyethylene tubing, segmented into seven channels, allows groundwater monitoring at up to 7 depth-discrete zones. The 3-Channel System uses the same material and construction, but it is only 1.1" (28 mm) in diameter. This narrow tube was developed for smaller diameter installations, especially direct-push where the annulus for seal placement is narrow.
Applications:
Identify vertical as well as horizontal contaminant distribution with transect monitoring
Ideal for shallow wells in high water table environments
Multilevel water sampling and level monitoring in unconsolidated soils or bedrock
Dewatering impact assessments at construction & mining sites
Mass transport calculations and mass flux estimation
Monitoring of natural attenuation or remediation processes, and documentation of its effectiveness
VOC, MTBE and Perchlorate monitoring at NAPL sites
Determination of the best location for reactive barrier walls, the Waterloo Emitter and other remediation methodologies
Vapor monitoring with special wellhead seals
Helps optimize design and performance assessment of remedial options
Advantages of the CMT Multilevel System:
Low cost and easy to install and use
No joints - one smooth surface for easy, effective sealing
Up to 7 depth-discrete zones in a single tube
Locate ports and seals exactly where desired
Installs quickly in large direct-push casing and boreholes
One 7-Channel CMT System can be completed by two people in under 3 hours, 3-Channel even faster
Borehole not left open to allow cross contamination
Isolated zones ensured using sand and bentonite layers or 3-Channel Cartridges - reliable and inexpensive
Minimizes the risk of producing new contaminant pathways
One CMT System - Two Sizes:
Features 7 Channel 3 Channel
Tubing diameter 1.7" (43 mm) 1.1" (28 mm)
Monitoring zones up to 7 up to 3
Channel diameter 6-Pie: 0.4" (10 mm)1-Hex: 3/8” (9.5 mm) 3-Hex: 3/8" (9.5 mm)
Channel volume 40 mL / ft 30 mL / ft (center) 30 mL / ft
Installation options Sand & bentonite backfill Natural formation collapse Bentonite & sand cartridges Sand & bentonite backfill Natural formation collapse
Coil lengths(Coil 4 ft. dia.) 100 ft. (30 m),200 ft (60 m)& 300 ft. (90 m) 100 ft. (30 m)& 500 ft. (150 m)
Centralizer sizes(other sizes optional) 4.4" standard (112 mm) 3.3" standard (84 mm)
Borehole diameter recommended for backfill installations 4" (100 mm) and larger 3.5" (89 mm) and larger
Borehole diameter for installations with seal and sand cartridges N/A 2.8" - 3.5" (71 mm - 89 mm)
联系
北京恒仪科技有限公司 | 河北恒仪电子科技有限公司
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