沉积物

188bet体育平台行业沉积物new-bedford2-ma原位凝固(ISS)是一种经过验证的修复高地场地的技术,特别是人造气厂(MGP)场地。此外,ISS是一项新兴技术,可用于修复污染场地的淹没沉积物。ISS可以替代传统的疏浚和封顶作业。就地处理技术的应用有可能降低水和疏浚废渣处理和处置的成本。此外,ISS可以在较深的深度下执行,而不会显著增加治疗的总成本。

浸没沉淀物的ISS采用与高地ISS类似的方式进行,而泥浆试剂通过螺旋钻或类似的土壤混合工具与沉淀物混合,以促进土壤/沉淀物和灌浆的均匀混合。泥浆与沉积物相结合,形成单独的柱子,在场地上形成一个低渗透性的整体。该工作通常由模块化或标准驳船系统完成,现场批量计划可以位于陆地或水上。GSI有在知名地点对这一新兴技术进行多次试点测试的经验,其中包括美国环保局的一个项目。项目成功地实现了绩效目标,同时对水生环境保持最小的影响。

淹没沉积物的ISS可用于河流和港口应用以及雨水或过程池塘应用的许多不同行业。188bet体育平台

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沉积物案例研究

重大项目特点:•现场和实验室评价混合设计和开发项目•原位凝固(ISS) 1850 CY沉积物的海洋环境•从模块化驳船系统完成的工作•试剂从模块化驳船系统批处理•物流和不可预见的海洋变量•沉积物表面在18到22岁的脚的顶部背景:Gowanus运河是一条1.8英里长的运河,建于19世纪60年代,位于纽约的布鲁克林。运河的边界是三个前人造气体工厂(MGP)和各种历史悠久的海滨工业。188bet体育平台2010年3月,该运河被美国环境保护署(USEPA)指定为超级基金基地。2011-2013年进行了台阶式试验,以确定可能适用于中试研究的混合设计。金宝搏188手机端Geo-Solutions公司通过之前执行的类似国际空间站沉积物试验项目提供了必要的经验。2015年,位于Gowanus运河的第7街转弯盆地被确定为该项目的地点。•在海洋条件下固化MGP含nlp的沉积物,生成足够的性能数据,以评估该技术在典型条件下的应用。•在QC/QA报告中提供准确的细节。 • Maximum productivity throughout the test demonstration. • Create one continuous monolith of all 9 mix designs. • Minimize environmental disruption to surface sediments and canal water quality. Complete 9 mix designs within the allotted 18 day test program. • Document special health and safety considerations, additional costs and logistical and permitting challenges associated with on-water operation of ISS equipment. • Provide detailed summary report. Description of Work: For this unique ISS demonstration project, Geo-Solutions set up ISS equipment on two modular barge floats. The first of which included: a batch plant (cement/slag silos, pumps, high shear mixer and water tank) and two debris removal containers. On the second barge, an 180,000 lb. hydraulic drill rig, a CAT324 excavator (debris removal) and three conex containers used for an office and tool storage. After construction of the support and ISS barges, Geo-Solutions relocated the barges to the drilling site in the Gowanus Canal, located in Brooklyn, New York. The mobilization of the barges was a logistically challenging venture as Geo-Solutions was required to coordinate multiple draw/lift bridges for time sensitive access points while navigating the narrow canal. Upon arrival, Geo-Solutions immediately strung oil booms and turbidity curtains around the ISS test program location. During operations, Geo-Solutions performed an initial sweep for debris contained within the sediment. Following debris removal ISS activities commenced and 226 ISS columns were installed over the 18 days of soil mixing. These columns were installed at various depths within the transitional phase of the soft and native sediments. Operational parameters for the ISS of sediments were varied to create optimal homogenous mixing while creating minimal environmental impacts to the canal turbidity and sheens. Bulkhead stability was monitoring continuously utilizing multiple inclinometer stations, and GPS targets. A total of nine (9) different mix designs and three (3) reagents were utilized. Both 6 foot diameter and 8 foot diameter auger sizes were evaluated. Varying results were achieved with the different mix designs as anticipated. The native sediment was solidified discretely through in-place soft sediments to achieve a 5-8 foot thick monolith which will later support a reactive cap system. The local barge mounted turbidity curtains were sufficient to control sheens, NAPL, and turbidity. The Pilot Study data was summarized for the client to provide to the EPA and stakeholders for full scale design considerations.

布鲁克林,纽约:Gowanus Canal Superfund网站

重要的项目特点:现场和实验室评估对原位凝固(ISS)的项目的混合设计和开发,从模块化驳船系统物流和不可预见的海洋变量沉积物批量完成的船舶环境工作中的1,850个CY沉积物中的1,850个CY沉积物表面是......阅读更多
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斯普林菲尔德,马:技术示范项目

重大项目特点:从模块化驳船系统沉积物表面完成的河流环境工作中的沉积物中沉积物的沉积物(ISS)的沉积物的沉积物的混合设计和开发的实验室评估为16-18英尺,距离固化的水线沉积物厚度为16-18英尺8-17英尺背景:epri和...阅读更多
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