groundwater bioremediation Articles
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Feasibility study of in-situ bioremediation for nitrobenzene-contaminated groundwater
Although many studies have simulated in-situ bioremediation of contaminated groundwater, most of them have not considered hydrochemical conditions and indigenous microorganisms, thus potentially rendering results inapplicable to actual in-situ groundwater bioremediation projects. This study focused on a nitrobenzene-contaminated groundwater site located in Jilin City, China. The actual ...
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Bioremediation of groundwater at a gas station in PA
The target compounds detected in the source area wells (MW-1, OW-A, and OW-B) decreased during the eight quarterly sampling events performed since the injection of HydroRemed. These compounds included benzene, ethylbenzene, naphthalene, toluene, 1,2,4-TMB, and 1,3,5-TMB. During the last three quarters (November 2011 to May 2012), the only target compounds 1,2,4-TMB and 1,3,5-TMB, were drastically ...
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Cl-Out Bioremediation of Groundwater in Clay Soils
CL-Out bioremediation of groundwater in clay soils reduced concentrations of PCE and TCE at a former dry cleaners in Illinois. In just over 2 weeks after injection, CL-Out microbes cut the contaminant concentrations in half. PCE from 62.2 to 25.6 mg/L TCE from 11.2 to 6.0 mg/L Cis 1,2-DCE from 3.8 to 1.2 mg/L Vinyl chloride less than 0.001 mg/L before and after treatment The ...
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Groundwater remediation using simulation-optimisation approach: A review
Optimal design of a remediation system has been an active and important area of research since the past several years due to its potential to reduce the remediation cost substantially. The paper presents the state-of-the-art for application of simulation-optimisation approach to design an optimal groundwater remediation system. In the simulation-optimisation approach, the researchers have used ...
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Response of bacteria and meiofauna to iron oxide colloids in sediments of freshwater microcosms
The use of colloidal iron oxide (FeOx) in the bioremediation of groundwater contamination implies its increasing release into the environment and requires an assessment of its ecotoxicological risk. Therefore, microcosm experiments were carried out to investigate the impact of ferrihydrite colloids (Fh‐Col) on the bacterial and meiofaunal communities of pristine freshwater sediments. The ...
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HD#5 - In-Situ BioLogix Application - Case Study
Summary BioLogix bioremediation is used to remediate petroleum contamination in soil and ground water under many different conditions. From surface spills to deep soil and groundwater contamination, Custom Blend bioremediation has successfully removed the contamination and environmental risk. While every site is unique, the following case studies provide a basis for confidently selecting Custom ...
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Enhanced bioremediation of groundwater using in-well methods – Case Study
Overview: This white paper provides a comparison of two groundwater treatment methods that are used to facilitate remediation of floating and dissolved petroleum hydrocarbons in groundwater. Both methods have some merit. However, United Remediation Technology (UniRemTech)’s Wellboom ™ can provide a faster and longer lasting solution due to its composition of absorption and in-situ ...
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A Citizen`s Guide to Bioremediation
What is bioremediation? Bioremediation is a treatment process that uses naturally occurring microorganisms (yeast, fungi, or bacteria) to break down, or degrade, hazardous substances into less toxic or nontoxic substances. Microorganisms, just like humans, eat and digest organic substances for nutrients and energy. In chemical terms, 'organic' compounds are those that contain carbon and hydrogen ...
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Anaerobic Bioremediation of Groundwater Using Edible Oil Substrate EOS® In an Unconfined Groundwater Aquifer
ABSTRACT: To treat groundwater contaminants in situ, enhanced anaerobic bioremediation processes can be stimulated through addition of soluble substrates. At a dry cleaners site located in San Jose, California, the goal was to find a substrate that is long lasting and easily distributed into the saturated soils. After evaluating several alternatives, in situ bioremediation using an emulsified ...
By Redox Tech
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Dr. Leo Lemicke presents paper at Battelle bioremediation conference.
In June, Dr. Leo Lemicke presented a paper titled, 'Natural Attenuation: Better Than Groundwater Extraction?' at the Battelle Bioremediation Conference in ...
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In Situ Soil and Ground Water Bioremediation Using CL-Out Cometabolism for PCE and TCE Removal - Case Study
Background The dry cleaning solvent was found in an area around a dry cleaning machine. The solvent entered the soil below the building and percolated through the soil to a perched ground water zone and an underlying second ground water zone. The soil and sediments are interbedded alluvial and marine sediments with a high permeability. The site was close to the beach, and ground water is ...
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Rushing Remediation - Cometabolic bioremediation accelerates natural degradation of groundwater and soil contaminants
Untitled Document Field studies have shown that many organic contaminants degrade naturally by microorganisms present in soil and groundwater. This naturally occurring bioremediation, known as natural attenuation, has been accepted as a passive remediation process for contaminated soil and groundwater. When the natural degradation is insufficient to meet remediation ...
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Case Study: Royal Albert Basin, Beckton
The site comprises of five separate areas totalling circa 100 acres of land contaminated by previous uses as inter alia, a dump for gas works wastes, oil storage and distribution, paint production, coal storage, petroleum wharfage etc. The site as a whole is to be redeveloped for mixed residential, commercial and industrial uses with public open space and landscaping to suit. The contract has ...
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Petroleum Bioremediation by Custom Blend Surface Spills to Deep Subsurface Success - Case Study
Custom Blend bioremediation is used to remediate petroleum contamination in soil and ground water under many different conditions. From surface spills to deep soil and ground water contamination, Custom Blend bioremediation has successfully removed the contamination and environmental risk. While every site is unique, the following case studies provide a basis for confidently selecting Custom ...
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Closing Petroleum Sites - Ground Water Bioremediation with Petrox - Case Study
Petrox bioremediation has been used to remediate sites quickly and effectively without negative byproducts. While every site is unique, this case study provides a basis for confidently selecting Petrox bioremediation to close your project. Convenience Store, Hamilton County, Florida, FDEP ID 8518526 After three underground storage tanks were removed from the location of a convenience store, ...
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Dry CleanersSite, Houston, Texas - Case Study
Site Summary: BioLogix CL bioremediation was implementedat a dry cleaners site in Houston, Texasto reduce residualPCE and other chlorinated solvent concentrations in groundwaterfollowing dual phase vacuum extraction. After application of BioLogix CL®bioremediation the chlorinated solvent concentrations were reduced by 98%to 99% in less than 90 days.In Control Technologies, of Houston, ...
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Dry Cleaners Site, Houston, Texas - Case Study
Site Summary: BioLogix CL bioremediation was implemented at a dry cleaners site in Houston, Texas to reduce residual PCE and other chlorinated solvent concentrations in groundwater following dual phase vacuum extraction. After application of BioLogix CL® bioremediation the chlorinated solvent concentrations were reduced by 98% to 99% in less than 90 days. In Control Technologies, of Houston, ...
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Real Estate Development: Southern California Campus at Former Aerospace Manufacturing Facility - Case Study
In 2015, Intrinsyx was retained by a Fortune 100 client with a campus being developed (late 2018 opening) at a highly contaminated former aerospace manufacturing facility. We worked with the client’s Environmental Health & Safety team, their architectural firm, their landscaping firm, as well as state and federal regulators. We developed a tailored planting scheme for their campus using ...
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Groundwater Remediation Methods
Groundwater contamination is a significant environmental challenge faced by many regions worldwide. Pollution resulting from hydrocarbons and other contaminants can have disastrous consequences on both the environment and human health. Therefore, the need for effective groundwater remediation methods cannot be overemphasized. In this article, we will discuss some of the groundwater remediation ...
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MEW Superfund Site: TCE Groundwater Plume - Case Study
Working with NASA-Ames Environmental Remediation Group and the EPA, this site was our first field deployment of Endophyte Assisted Phytoremediation, at one of the region’s largest Superfund sites with TCE groundwater contamination. Intrinsyx planted 300 hybrid poplar trees as 12-inch cuttings. Within a year, the benefits of using our PDN3 bacterial endophyte to inoculate trees were visible, ...
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