Groundwater to Surface Discharge: Remediation of Shoreline and Sediment Sheen - Case Studies of Full-Scale Treatment Systems
John A. Collins, General Manager and COO, AquaBlok, Ltd.
Co-Author: Dr. Moses Ajemigbitse, Environmental Engineer, AquaBlok, Ltd.
Residual upland contamination at petroleum and MGP sites can impact nearby surface water and sediments. In some cases, groundwater plumes can be created by impacted soil, which can subsequently form sheen in surface water. Higher risk-of-remedy can be created when using conventional sediment removal (with ex situ treatment) and the unsustainable practice of moving the problem from one media to another (i.e., from sediment to upland landfill). Treatment materials of various sizes and specific gravity can be placed uniformly in combination with bulk material such as sand and gravel. Treatment materials such as organoclays and activated carbon have provided appreciable reduction of contaminants to both petroleum and MGP sites at full-scale and can be incorporated into composite particles with targeted cap permeabilities. This paper will present data from lab testing and profiles of full-scale installations of reactive caps alone, and in combination with a low-permeability capping material.
John Collins is the General Manager and COO of AquaBlok, Ltd. Mr. Collins is responsible for all day-to-day activities of the company, including technology development, manufacturing, and marketing. AquaBlok developed, patented and manufactures a wide range of materials using their unique technology in not only the environmental remediation markets, but also in phosphorous reduction, annular sealants, pond/canal liners, and other geotechnical segments. Mr. Collins has over 25 years’ experience in a variety of engineering and environmental related businesses managing research, product development, technology licensing, capital goods manufacturing, and acquisitions. He has been with AquaBlok for fifteen years and has guided the development of several new products and managed multiple major remediation projects.