LSP Association Continuing Education Seminar

ISCO/ISCR Permeable Reactive Barrier (PRBs) to Prevent Migration of Contaminant Plumes AND
Remediation of Heavy Metals Using Insitu Approaches That Combine Multiple Mechanisms

When: Thursday, November 21, 2019
Time: 1:00 PM - 5:15 PM (Registration begins at 12:30 PM).  
Location: Doubletree Hotel, 5400 Computer Drive, Westborough

Pricing: $200 Members | $350 Non-Members
Instructors: 

  • Ravi Srirangam, P.E., Ph.D., Technical Manager, North Eastern Region, PeroxyChem
  • Fayaz Lakhwala, Ph.D., Technology Applications Manager, North America, PeroxyChem
Click here to view Instructor Biographies.

ISCO/ISCR Permeable Reactive Barrier (PRBs) to Prevent Migration of Contaminant Plumes has been approved for 2.0 LSP Technical continuing education credits (#1656) and 2.0 CT LEP credits (CTLEP-462). Remediation of Heavy Metals Using Insitu Approaches That Combine Multiple Mechanisms has been approved for 2.0 LSP Technical continuing education credits (#1657) and 2.0 CT LEP credits (CTLEP-461). This course will also be submitted to NY for PDH credits. Please note: These courses will be held immediately prior to the LSPA's November Membership Meeting. 

Course Descriptions: 

ISCO/ISCR Permeable Reactive Barrier (PRBs) to Prevent Migration of Contaminant Plumes
Permeable reactive barriers (PRBs) are designed to create an in situ permeable reactive treatment zone perpendicular to groundwater flow intercepting and remediating contaminant plumes. Contaminants may be treated through a series of physical, chemical and biological processes. Depending on the type of contaminants impacting the PRBs, the reactive zone may be created using reagents based on permanganate or persulfate to promote chemical oxidation (ISCO) of contaminants or substrates like Zero Valent Iron (ZVI) to promote chemical reduction (ISCR) or indirectly, using materials designed to stimulate secondary processes (e.g., adding carbon substrate and nutrients to enhance microbial activity).

This presentation will describe the basic concepts of designing an ISCO/ISCR PRB applied to address mass flux of organic contaminants migrating through a zone of concern with an emphasis on treatment of chlorinated organics.

Remediation of Heavy Metals Using Insitu Approaches That Combine Multiple Mechanisms
Trace metals constitute a significant class of groundwater contaminants originating from mining effluents, industrial wastewater, landfill leachate, agricultural wastes and fertilizers, and fossil fuels. Based on the chemical properties of dissolved species, trace metals can be divided into two distinctive groups: reducible metals and metalloids, which are present in natural waters as anions and oxyanions (e.g.; Cr, As, Se, Mo, U), and metal cations, which occur in aqueous environments as divalent cations (e.g.; Cu, Zn, Cd, Pb, Hg, Ni). Depending on their aqueous form, the mobility of trace metals in groundwater is affected by various chemical reactions, including dissolution-precipitation, oxidation- reduction, adsorption-desorption and complexation. Several different remediation technologies based on those reactions have been implemented for subsurface metal immobilization (e.g.; reactive zones containing zero valent iron (ZVI), organic carbon substrates, zeolite, limestone).

To view course description, agenda and bios, click here.

Please email Kristi Lefebvre with any questions.