iron bacteria contamination Articles

  • Battling Iron Bacteria Contamination in Mining

    Published in the May issue of International Mining, this article focuses on the problem of iron bacteria contamination in the water supply for the Tiwest Mine at Cooljarloo, Australia. Mines rely heavily on groundwater sources and the quality and flow of that water have both operational and regulatory implications. The problem of mineral and bacterial contamination in groundwater sources can ...


    By Geoquip Water Solutions

  • Overcoming Iron Bacteria Problems in South Africa

    One of two articles published in the December issue of Borehole Water Journal, the magazine of the South African Borehole Water Association. Craig Jones from Midlands Pumps in South Africa is the BoreSaver partner of Geoquip Water Solutions Ltd. Craig reviews the problems of iron bacteria and iron oxide contamination in South Africa and advocates an ongoing maintenance programme that ...


    By Geoquip Water Solutions

  • Overcoming iron bacteria problems: An Australian perspective

    Iron bacteria are becoming an increasing problem in groundwater bores and are estimated to affect about 40% of the world’s water bores with anecdotal evidence indicating that this number is steadily increasing. Iron bacteria derive energy during their metabolism through oxidising soluble ferrous iron, present in the groundwater, to its insoluble ferric form. The resultant biofilm is ...


    By Geoquip Water Solutions

  • Ecology of Sulfate-reducing bacteria in an Iron-dominated, mining-impacted freshwater sediment

    Received for publication October 31, 2007. A legacy of lead and silver mining in its headwaters left Lake Coeur d'Alene, Idaho with a sediment body that is highly reduced and contains up to 100 g kg–1 iron and a smaller fraction of chemically active sulfide phases. The dynamic character of these sulfides and their importance for the sequestering of contaminating trace elements prompted this study ...

  • 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 ...


    By John Wiley & Sons, Ltd.

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • A New Perspective: a new way to overcome iron bacteria problems has come to America

    Published in the April edition of the Waterwell Journal, this article looks at the problems caused by iron bacteria and iron oxide in wells and boreholes and how Boresaver, a specialist range of cleaning treatments, can solve those problems. Mineral scale and bacterial slime contamination are becoming an increasing problem in groundwater bores in America. Iron bacteria and iron oxide deposits are ...


    By Geoquip Water Solutions

  • Inhibition of bacterial perchlorate reduction by zero-valent iron

    Perchlorate was reduced by a mixed bacterial culture over a pH range of 7.0–8.9. Similar rates of perchlorate reduction were observed between pH 7.0 and 8.5, whereas significantly slower reduction occurred at pH 8.9. Addition of iron metal, Fe(0), to the mixed bacterial culture resulted in slower rates of perchlorate reduction. Negligible perchlorate reduction was observed under abiotic ...


    By Springer

  • Former Dry Cleaning Site Contaminated with PCE - Case Study

    In-Situ® Inc. TROLL® 9500 Multiparameter Sonde helps resolve treatment challenges and saves $200,000 in drilling, reagents, and consulting. A former dry-cleaning site in the Pacific Northwest, Ultra Custom Care Cleaners, was found to be contaminated with PCE (perchloroethylene). According to the U.S. Geological Survey (USGS), PCE was widely used in the dry cleaning of fabrics since the ...


    By In-Situ, Inc.

  • Geochemical and ecotoxicological assessment of iron‐ and steel‐making slags for potential use in environmental applications

    Prior to the productive use of iron‐ and steel‐making slags as environmental amendments, a risk assessment supported by material characterization concomitant with leaching and ecotoxicological testing is necessary. Five iron‐ and steel‐making slags were characterized geochemically and the leachability of their elemental constituents assessed. The toxicity of slag leachate to microalgae ...


    By John Wiley & Sons, Ltd.

  • Bacterial biofilms formed in arsenic-containing water: bacterial community characterization

    We have analyzed the structure and diversity of bacterial biofilms formed on different water distribution materials in the absence and in the presence of 5 mg/L of arsenic(V). Three commercial metals (cast iron, zinc and copper) and polypropylene were used as substrata for biofilm formation. Biofilms were observed using scanning electron microscopy. Microbial ecology techniques (DNA ...


    By IWA Publishing

  • Effect of soil-use on deep groundwater quality in Southern Chile

    This study evaluated the effects of farming activities on the quality of deep well water in Southern Chile. In this area, the use of fertilisers is becoming more widespread and the accumulation and poor management of cattle slurry and silage sub-products increases the risk of contamination. The study was carried out in the province of Osorno, where rainfall occurs all year round (maximum in ...


    By Inderscience Publishers

  • In situ bioremediation of pesticides in soil and groundwater

    This article provides a summary of the Adventus Group’s experience with treatment of organochlorine pesticides (OCPs) in soil and groundwater using DARAMEND® and EHC® bioremediation amendments. The firm has offered DARAMEND for treatment of recalcitrant compounds in soil for more than ten years in both ex situ and in-situ applications. Since OCPs bind strongly to the soil matrix, ...


  • Does the risk of Legionnaire’s Disease rise when there’s lead in your water?

    Ongoing monitoring shows that lead levels in Flint, Michigan’s water are dropping and getting closer to meeting federal safety standards. That’s some much-needed positive news for the community. But there’s still work to be done. Now, researchers are starting to check residential hot water heaters in Flint homes for Legionella. Legionella grows best in warm water and hot water ...


    By LuminUltra Technologies Ltd.

  • In situ remediation of BTEX, MTBE and TPH using EAS as a terminal electron acceptor

    EAS, A Paradigm Shift in the Remediation of Petroleum Hydrocarbons The conventional wisdom for remediation of aquifers contaminated with petroleum hydrocarbons (PHCs) is to add oxygen. A recent EPA / British Petroleum study, however, concluded that most hydrocarbon plumes are anaerobic and depleted of sulfate and, therefore, adding oxygen is disadvantageous. Other studies have drawn ...


    By True Blue Technologies, Inc.

  • Rapid in-situ bioremediation of solvents by abiotic and biotic mechanisms

    A combined abiotic/biotic field pilot study was performed at an industrial site with high concentrations of chlorinated solvents in a fractured bedrock groundwater system. The primary groundwater contaminants consist of 1,1,1-trichloroethane (TCA) and related degradation products, including 1,1-dichloroethane (DCA), 1,1-dichloroethene (DCE), chloroethane (CA), and vinyl chloride (VC). The pilot ...


    By RNAS Remediation Products

  • Ex Situ Biological Treatment for Groundwater, Surface Water, and Leachate

    The main advantage of ex situ treatment is that it generally requires shorter time periods, and there is more certainty about the uniformity of treatment because of the ability to monitor and continuously mix the groundwater. However, ex situ treatment requires pumping of groundwater, leading to increased costs and engineering for equipment, possible permitting, and material handling. ...

  • In situ Chemical Oxidation: An Innovative Groundwater Remediation Technology

    A promising new technology, in situ Chemical Oxidation (ISCO), has the potential to supplant the more widely used pump-and-treat groundwater remediation technology by destroying groundwater contamination in situ (in place). ISCO is the process of oxidizing contaminants in the groundwater and soil by injecting water containing high concentrations of an oxidant to the site of the contamination. ...


    By AECOM

  • UV disinfection for enhanced oil recovery and other oilfield applications

    One of the biggest challenges facing oil companies today is how to extract more oil from the discoveries made in the last 40 years. Estimates vary, but approximately 66% of the discovered oil gets left in the ground. The International Energy Agency has estimated that if, in the next 20 years, this figure could be reduced to 50%, then this would increase the world's recoverable oil by 1.2 trillion ...


    By atg UV Technology

  • Machining Coolant Recycling: Unidrive

     Unidrive Pty Ltd undertake extensive machining operations during the production of automotive components. In the past this resulted in the generation of 20,000 litres of waste coolant every week. By implementing a coolant recovery and recycling system, Unidrive have saved approximately $179,000 per annum as a result of more efficient coolant usage and management. ...


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