remediation method Articles
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Breaking it down: How to make bioremediation work for you
Recently, two large companies who were both dealing with chemical contamination took different approaches to remediation. One decided on physical treatment, costing them well over $150 million. The other, after analysis, went forward with bioremediation. Their costs came to less than $10 million.As bioremediation rightfully becomes a more popular remediation method across Australia, it’s ...
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How to mitigate risks and build sustainable practices through bioremediation
At Novorem, our experience working with companies on a global scale to achieve successful, sustainable outcomes through bioremediation and microbiological processes allows us to regularly produce content that we’re excited to share with you.Given your role at your organisation , I thought you might be interested in these insights.In this month's blog, we explore:*3 serious risks of traditional ...
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Soft subgrade remedies under heavy axle loads - 2.5-year TTCI test results - Case Study
Rapid track geometry degradation can occur under heavy axle loads. Several proposed remedies for this deterioration have been evaluated on the Heavy Tonnage Loop at the Transportation Technology Center, Inc., Pueblo, Colo. A 700-foot-long, soft-subgrade test track, installed in the HTL, provides a nominal track modulus of 2,000-to-2,500 lb/in./in. This section is referred to as the low track ...
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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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Method for remediation of aquifers
The US Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of contract F41624-99 C-8033 awarded by the United States Air Force Material Command. BACKGROUND OF THE INVENTION 1. Field of the InventionThis invention relates to the remediation of contaminated ...
By Redox Tech
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The power of precise remediation
Design matters in in-situ remediation. Just ask Resource Geoscience, Inc. (RGI), a Remediation Products, Inc. BOS 200 approved installer and certified Trap and Treat Consultant. They recently demonstrated that when paired with proper injection design and precise application, BOS 200 can get the job done where others fail. The site: Contaminated clay site in Colorado The contamination: BTEX ...
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Treatment and remediation methods for arsenic removal from the ground water
Globally, ground water is contaminating by arsenic continously, which needs economic treatment and remediation technologies. Physical, chemical and biological treatment methods have been developed, that include different kinds of filters, bucket type units, fill and draw, kalshi etc. The remediation methods discussed are air oxidation, reactive barriers, utilisation of deeper aquifers and ...
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A New Way to Locate Seeps Into Surface Waters
How can we determine where groundwater is seeping into rivers and bays? Knowing seep locations can help with selecting sampling locations, identifying contaminant sources, determining whether contamination is historic or on-going, and designing remediation. Historically, methods for locating seeps have been limited. Due to cost, sampling can only be done at a few locations. This means we ...
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Why your remediation options assessment shouldn’t prematurely exclude bioremediation
Bioremediation is used widely - and in some cases, intensively as a preferred method of remediation across the world. But it's seen less of a take up locally in Australia. While there are likely multiple reasons for this, one major reason that has emerged stems from bioremediation being erroneously excluded during remediation options assessments. Some situations are not taking the most effective, ...
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Kara Trutnov Site: Successful Reduction of Mixed Contamination of Chromium and Chlorinated Organics
Remediation company EKORA in collaboration with company NANO IRON, producer of zerovalent iron nanoparticles (nZVI), conducted pilot injection of surface stabilized nanoparticles of elemental iron (NANOFER 25S) and their subsequent full-scale application to eliminate groundwater contamination of chlorinated hydrocarbons (CHCs) and hexavalent chromium (Cr6+) at KARA Trutnov site in Czech Republic. ...
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The Power of EQuIS in Environmental Management and Decision Analysis: Case Studies in Colorado (PDF)
Selecting an optimal remediation strategy for environmental sites is never a straightforward, easy process. Successful management and decision analysis requires not only the availability of spatial, chemical, and geologic data, but also an integrated environmental quality information system which allows a project manager to utilize and analyze the data. EarthSoft’s Environmental Quality ...
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Mitigation of workplace radon gas concentration using high–performance epoxy resin coating
The indoor radon gas released from concrete was measured using a 0.65 × 0.65 × 0.65 m fabricated concrete slab room, simulating a workplace. The indoor radon gas concentration was monitored, and the remediation method was examined. Radon concentrations were monitored using Radon Monitor Model 1023 from Sun Nuclear. Results show that average radon concentrations reached 111 Bq.m−3 before ...
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Enumeration of sulphate-reducing bacteria for assessing potential for hydrogen sulphide production in urban drainage systems
Urban drainage structures have increasing demands which can lead to increasing hydrogen sulphide related problems forming in places where they have not previously been prevalent. This puts pressure on the methods currently used to monitor and diagnose these problems and more sophisticated methods may be needed for identifying the origin of the problems. Molecular microbiological techniques, ...
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Treatment and remediation methods for arsenic removal from the ground water
Globally, ground water is contaminating by arsenic continously, which needs economic treatment and remediation technologies. Physical, chemical and biological treatment methods have been developed, that include different kinds of filters, bucket type units, fill and draw, kalshi etc. The remediation methods discussed are air oxidation, reactive barriers, utilisation of deeper aquifers and ...
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The possible reduction pathways of 2,4,6-trinitrotoluene (TNT) by sulfide under simulated anaerobic conditions
To predict the final fate of 2,4,6-trinitrotoluene (TNT) and its intermediates in an anaerobic fermentative solution containing reduced sulfur species and to provide a basis for the adoption of remediation methods, we investigated the pathways of TNT (TNT0 = 50 mg/L) reduction by Na2S at 30 ± 1 °C in an acetic acid–sodium bicarbonate buffer. Liquid chromatography/mass spectrometry (LC/MS) was ...
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Pros & Cons of Remediation Structures with Chinese Drywall
Mr. Mulholland addresses pros and cons of the four main approaches to remediation of structures with Defective (Chinese) Drywall. There are many methods or approaches to remediation practices in the construction industry. The current crisis with defective Chinese drywall that is diffusing low levels of sulfur compounds like hydrogen sulfide, carbonyl sulfide, carbon disulfide and others creates ...
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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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Potential for nutrient removal by integrated remediation methods in a eutrophicated artificial lake – a case study in Dishui Lake, Lingang New City, China
A new integrated water remediation technology, including a floating bed, a buffer zone of floating plants, enclosed ‘water hyacinth’ purification, economic aquatic plants and near-shore aquatic plant purification, was used in Dishui Lake to improve its water quality. A channel of 1,000 m length and 30 m width was selected to implement pilot-scale experiments both in the static ...
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Zerovalent Iron nanoparticles for treatment of ground water contaminated by Hexachlorocyclohexanes
Ground water and aquifer samples from a site contaminated by hexachlorocyclohexanes (HCHs; C6H6Cl6) were exposed to nanoscale iron particles to evaluate the technology as a potential remediation method. The summed concentration of the HCH isomers in ground water was approximately 5.16 µmol L–1 (1500 µg L–1). Batch experiments with 2.2 to 27.0 g L–1 iron nanoparticles showed that more than 95% of ...
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Methods for the control of oil vapour emissions
There are many oil vapours to discharge from oil containers into the atmosphere in oil operations (such as storage and loading). Two basic concepts are discussed regarding the control of oil vapour emission (OVE). The first is to invent active methods to restrain the OVE. The second is to develop passive tail–end remediation technologies to control the released vapour. Oil vapour recovery ...
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