6.3 创新性技术评价报告Innovative Technology Evaluation Report

 

“阿科巴拉克(AquaBlok?)底泥覆盖技术演示”

2007年9月,USEPA为阿科巴拉克(AquaBlok?)底泥覆盖技术发表了题为“阿科巴拉克底泥覆盖技术演示”的“创新性技术评价报告”(EPA,2007)(右图为此发表物的封面,共有126页)

此演示项目由USEPA拨款(合同号No.68-C-00-185),并由巴特尔纪念研究所(Battelle Memorial Institute)实施研究。演示工程选在华盛顿 (Washington DC) 的阿那卡斯提亚河(Anacostia River),雨水冲刷和城市污水系统溢出造成Anacostia河底底泥的严重污染 (污染物为多氯联苯PCBs, 多环芳烃PAHs)。2004年3月,阿科巴拉克和其它覆盖材料被用来对此被污染的河底底泥进行覆盖治理,同时被研究和测试 (Reible et al.,2006, Wang et al.,2009)。从三年来的监测数据分析,阿科巴拉克与其它覆盖材料相比,在阻断,稳定性,和微生物活性控制上都显示了独特的优势。(EPA,2007)

“所有演示结果表明,阿科巴拉克比传统覆盖物有明显较强的稳定性…”(EPA,2007)

“阿科巴拉克本身的不可渗透性为阻断污染物的扩散体现了比传统覆盖物更优越的特性…” (EPA,2007)

“阿科巴拉克的可设计控制的渗透率和结合处理的特性使它兼覆盖和处理为一体…” (EPA,2007)

“Demonstration of the AquaBlok? Sediment Capping Technology”:

In September of 2007, AquaBlok? Sediment Capping Technology was published by USEPA as “An innovative Technology Evaluation Report” named “Demonstration of the AquaBlok? Sediment Capping Technology” (EPA,2007) (see above picture shown the cover)

This demonstration was under the USEPA’s Superfund with contract No. 68-C-00-185 to Battelle Memorial Institute (Battelle) to be implemented. The demonstration site was selected at Anacostia River located at Washington DC.Storm water run-off and combined sewer

Overflows had resulted in the severe contamination in the sediments (most of pollutants are PCBs, PAHs). In March of 2004, AquaBlok? and other capping materials were used to cap the contaminated sediments in the river for comparison of the effectiveness to different cap materials (Reible et al., 2006, Wang et al., 2009). From the monitor data of three years, AquaBlok? has indicated exclusive advantage in isolation, stabilization, and microbial activity control.(EPA,1996)

“…Overall results of the AquaBlok? SITE demonstration indicate that the AquaBlok? material is highly stable, and likely more stable than traditional sand capping material even under very high bottom shear stresses.” (EPA,1996)

“… AquaBlok? material also characteristically more impermeable, and the weight of evidence gathered suggests it is potentially more effective at controlling contaminant flux, than traditional sand capping material.” (EPA,1996)
“… AquaBlok? also appears to be characterized by impacts to benthos and benthic habitat generally similar to traditional sand capping material.” (EPA,1996)