Yangzhou Hanjiang Road South Extension Area Soil Remediation and Control Project
The project site is located on the south side of the intersection of Hanjiang South Road and Chunjiang Road in Guazhou Town, Hanjiang District, Yangzhou City, with a total area of approximately 64608 square meters. It will be treated using restoration and risk management techniques. The excessive pollutants in the local soil include arsenic, lead, cadmium,
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Soil remediation projects at Hangzhou Iron and Steel, Guangzhou Zinc Sheet Factory, Tianjin Heavy Steel, Wuhan Gehua Chemical, Yancheng Yuxin, etc.
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The remediation of contaminated ground soil at the Former Dahua Group Relocation and Surrounding Renovation Project is located in the former Dahua contaminated land in the Shaoyuwan area of Ganjingzi District, Dalian. The remediation project involves the disposal of ground soil generated from the construction of underground utility corridors, Hengyuan Primary School, Metro Line 5, and the undersea tunnel. The project covers an area of approximately 219,000 square meters and has a total volume of approximately 1.468 million cubic meters. The project duration is 285 calendar days. The contract was signed on November 8, 2023, and construction will commence on December 16, 2023. The project involves 13 plots, including L4, M15, M17, M18, M19, M20, M24, M22, C3, C4, C5, M3, and M6.
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The project site, located south of the intersection of Hanjiang South Road and Chunjiang Road in Guazhou Town, Hanjiang District, Yangzhou City, covers a total area of approximately 64,608 square meters. Remediation is being carried out using a combination of remediation and risk management techniques. Exceeding standards for local soil pollutants include arsenic, lead, cadmium, mercury, benzo[a]pyrene, benzo[a]anthracene, benzo[b]fluoranthene, indeno[1,2,3-cd]pyrene, dibenzo[a,h]anthracene, petroleum hydrocarbons (C10-C40), and 1,4-dichlorobenzene. Contaminated soil within the surface layer (0.5 m) and 2 m below the roadway was excavated. Heavy metal-contaminated soil was physically eluted and then sent to a cement kiln for co-treatment. Complex contaminated soil was directly transported to the cement kiln for co-treatment. Approximately 32,036.5 m³ of contaminated soil was eluted, while approximately 17,980.7 m³ of contaminated soil was co-treated in the cement kiln. In-situ isolation of the underlying soil and groundwater was achieved using both vertical and horizontal barriers. The vertical barrier has a perimeter of approximately 1,098 m (depth 11 to 17.08 m), and the horizontal barrier covers an area of approximately 64,608 m². The contract duration of the project is 120 days. The project passed completion acceptance on October 26, 2023, and the project passed expert review of the effectiveness evaluation on November 14, 2024.
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