Silica/Silicates for Contaminant Remediation: Applications and Case Studies
Explore the use of silica/silicates as a chemical oxidant and activator for contaminant oxidation and remediation in the environmental field. Discover its approval in water discharge regulations, numerous applications, and effective approaches like direct push and soil mixing, illustrated through representative case studies in California and beyond.
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CHEMICAL OXIDANT + ACTIVATOR: SILICA/SILICATES LA WDR MEETING JULY 17TH, 2013 SUBMITTED BY: REGENESIS, SAN CLEMENTE, CA
RATIONALE FOR INCLUSION IN GENERAL WDR: SILICA/SILICATES APPROVED UNDER THE CURRENT GENERAL WDR PERMIT SINCE 2010 1,584 APPLICATIONS IN US AND CANADA 148 APPLICATIONS IN CALIFORNIA ON THE MARKET FOR 8 YEARS (2005) LEAVES ONLY NON-TOXIC SOIL-LIKE RESIDUALS (SILICA/SILICATES) HIGHLY EFFECTIVE CONTAMINANT OXIDATION KNOWN FOR SAFETY AND EASE OF APPLICATION
IDENTITY OF REAGENT SILICA CHEMICAL NAME: SILICON DIOXIDE FORMULA SIO2 COMMON NAMES: SILICA, SILICA GEL SILICATES CHEMICAL NAME: SODIUM SILICATE FORMULA NAXSIYOZ COMMON NAMES: SILICATE
CHEMISTRY CALCULATED STRUCTURE Oxidant SILICA SURFACE CATALYST SORBS CONTAMINANTS Contaminant (Benzene) SORBS OXIDIZERS PERCARBONATE PERSULFATE PERMANGANATE CATALYZES OXIDATION Catalyst (Silica)
APPLICATIONS IN LOS ANGELES AREA INSERT MAP
REPRESENTATIVE CASE STUDIES 31 CASE STUDIES POSTED ONLINE (CLICK HERE) TYPICAL APPLICATION APPROACHES: DIRECT PUSH PERMANENT INJECTION WELLS SOIL MIXING EXCAVATIONS CONTAMINANTS: BTEX, TPH, PCE, TCE, DCE, VC, TCA, MTBE, ETC.
CALIFORNIA CASE STUDIES INDUSTRIAL FACILITY, HOLLYWOOD CA VADOSE ZONE SOIL MIXING FORMER GAS STATION, CULVER CITY, CA DIRECT PUSH INJECTION INDUSTRIAL DRY CLEANER, CA DIRECT PUSH INJECTION FORMER INDUSTRIAL FACILITY, HAYWARD, CA SOIL MIXING MANUFACTURING FACILITY, SANTA CLARA, CA DIRECT PUSH INJECTION INDUSTRIAL SITE, ATTLEBORO, MA INJECTION WELLS FORMER GAS SERVICE STATION, BRONX, NY INJECTION WELLS
RATIONALE FOR INCLUSION IN GENERAL WDR: SILICA/SILICATES APPROVED UNDER THE CURRENT GENERAL WDR PERMIT SINCE 2010 1,584 APPLICATIONS IN US AND CANADA 148 APPLICATIONS IN CALIFORNIA ON THE MARKET FOR 8 YEARS (2005) LEAVES ONLY NON-TOXIC SOIL-LIKE RESIDUALS (SILICA/SILICATES) HIGHLY EFFECTIVE CONTAMINANT OXIDATION KNOWN FOR SAFETY AND EASE OF APPLICATION
