Soil and Groundwater Remediation
Free Webinars
As part of our commitment to the soil and groundwater remediation market, we offer a series of free webinars on YouTube which you can also download as pdf files in the right-hand section. The educational webinars, led by individuals from our experienced team of technical professionals, focus on a variety of topics on the science behind some of today's most innovative remedial treatments.
Next Webinar on December 4, 2024
8 a.m. Pacific | 11 a.m. Eastern | 5 p.m. Central European Time
KLOZUR® Persulfate Chemistry Revisited
2024 is the 20-year anniversary of KLOZUR® persulfate. These last two decades have seen thousands of successful applications, along with the introduction of KLOZUR® SP, KLOZUR® CR, KLOZUR® KP and most recently, KLOZUR® ONE.
Dr. Brant Smith will commemorate the anniversary of this technology with a webinar discussing how it started, the fundamental chemistry of persulfate, the evolution of the product line, and critical design elements. Dr. Smith will also discuss key lessons learned over the past 20 years including the critical nature of contaminant chemistry, the importance of proper activation, and chemical compatibility.
Missed the last webinar?
A SUSTAINABLE APPROACH TO REMOVAL OF DISSOLVED METALS & METALLOIDS
Dr. Alan Seech, Evonik’s Senior Technology Manager, will review, compare, and contrast the effectiveness of common treatment approaches for metals, metalloids, and chlorinated organics as influenced by their chemistry and site conditions.
Remediation of soil and groundwater contaminated with metals and metalloids is a significant challenge due to the substantial number of impacted sites, estimated at more than 2,000 in the United States and Europe.
Remediation of these sites can be difficult because a treatment approach that is effective for one metal may not be effective for other metals which are also present. For example, an alkaline precipitation treatment that works well for removal of hexavalent chromium could result in a higher concentration of dissolved arsenic. Successful remediation of metals-contaminated sites becomes even more difficult when both metals and chlorinated organic contaminants must be treated.
The author will briefly review the removal mechanisms for dissolved arsenic, hexavalent chromium, and divalent heavy metals with emphasis on the solubility and pH range stability of the products formed. The influence of soil and groundwater variables such as pH, redox status, and native iron and sulfate concentrations will be addressed. Representative results from bench-scale treatability testing and full-scale case studies using sustainably produced reagents including METAFIX® and GEOFORM® will be presented and discussed.
