bioremediation Articles

  • Promotion of pyrene removal from soils by Bidens maximowicziana

    A pot experiment was conducted to investigate the potential of removal of pyrene from spiked soils planted with Bidens maximowicziana . The removal of pyrene from the spiked soils planted with B. maximowicziana was obviously higher than that from the unplanted soils. After 50 d, the removal ratio of pyrene in the planted soils was 79%, which was 28% higher than that of the ...


    By Inderscience Publishers

  • Mechanisms and strategies of microbial cometabolism in the degradation of organic compounds – chlorinated ethylenes as the model

    The universal microbial cometabolism provides us with an effective approach to remove man-made xenobiotics. However, the cometabolic bioremediation of toxic organic compounds has not been widely initiated due to the obscure underlying fundamentals in the studies or applications of microbial cometabolism. This review summarizes the current research trends in mechanistic understanding of microbial ...


    By IWA Publishing

  • Phytoremediation technology for wastewater treatment: high rate transpiration system

    High Rate Transpiration System (HRTS) is a well-designed land treatment system composed of ridges and furrows and well-controlled hydraulic loading of wastewater. The present case study describes long-term operating experience of zero discharge of pulp and paper mill wastewater, which is characterised by high BOD, COD, TDS and colour that poses disposal problems into water bodies and on land. The ...


    By Inderscience Publishers

  • ORC Enhances Bioremediation and Results in No Further Action

    Site Summary A former industrial facility had one 1,000-gallon diesel UST for use in fueling an emergency generator.  Following removal of the UST, site investigations indicated diesel fuel contamination at levels above Florida Department of Environmental Protection (FDEP) Guidance Criteria. Further, total petroleum hydrocarbon (TPH) and polyaromatic hydrocarbon (PAH) contamination in ...


    By Regenesis

  • Freon 11/Freon 113 Remediation Using HRC – Los Osos, CA

    Site Summary A contaminant plume emanating from two waste disposal pits containing Freon 11 and Freon 113 was discovered at a former drug lab near Los Osos, California. In August 2002, Freon 11 and Freon 113 were detected in well MW-6 at maximum concentrations of 6,900 mg/L and 6,000 ?mg/L respectively. The initial remedial approach (during May 2002) was to excavate 100 cubic yards of ...


    By Regenesis

  • The use of biostimulation and bioaugmentation to remove phenanthrene from soil

    Biostimulation and bioaugmentation are commonly employed as technologies to remediate numerous environmental problems. In the last few decades, both technologies have been used to treat polyaromatic hydrocarbons (PAHs). This paper presents a brief survey of some bioremediation aspects, with particular reference to phenanthrene removal from soil, since this compound is the main model substrate for ...


    By Inderscience Publishers

  • Response surface modeling of bioremediation of acid black 52 dye using Aspergillus flavus

    Bioremediation is an efficient process to remove metals and dyes from solutions using different micro-organisms. In the present study, the efficiency of growing Aspergillus flavus (isolated from the effluent of an electroplating industry) to treat a synthetic solution of acid black 52 dye (a trivalent chromium complex dye) was investigated. Maximum removal of dye and chromium was observed to ...


    By IWA Publishing

  • Enhanced Bioremediation of Chlorinated Solvents (PDF)

    Enhanced in situ bioremediation of chlorinated solvents in groundwater has been successfully demonstrated at many sites by supplying lactic acid as an electron donor. The source of lactate for these successful pilot tests is Hydrogen Release Compound (HRC), a polylactate ester specially formulated for slow release of lactic acid upon hydration. HRC has been delivered to chlorinated ...


    By Regenesis

  • DNAPL in Clay Formation

    PROJECT BACKGROUND At a manufacturing site located in Cookeville, TN, on and offsite soil (tight clays) and groundwater contaminated with chlorinated solvents, were discovered as the result of a Phase I and a Phase II investigation. The client entered the State of Tennessee Voluntary Clean-up Oversight and Assistance Program (VCOAP), which resulted in an informal focused feasibility study to ...


    By Regenesis

  • Bioremediation techniques, category definitions, and mode of action in marine and freshwater environments

    The purpose of this article is to update and supplement the National Response Team (NRT) Science and Technology Committee's Bioremediation in Oil Spill Response Fact Sheet published in May 2000 and RRT guidance documents issued for FOSCs and response professionals. Although existing US NRT and RRT guidance covers important facts about bioremediation, existing material does not adequately define ...

  • Biotreatment of waste gas containing pyridine in a novel rotating rope biofilter

    A novel Rotating Rope Biofilter (RRB) has been developed especially for the treatment of Volatile Organic Compounds (VOCs) at higher loadings and characterised by high volatility along with high water solubility. The RRB provides a higher interfacial area (per unit reactor liquid volume) along with high oxygen mass transfer rate, greater microbial culture stability, and consequently higher ...


    By Inderscience Publishers

  • Biotechnological approach for ecosystem restoration of mine spoil dump in India

    Mine-degraded land (mine spoil dumps) has been restored through plantation in India by eco-friendly and cost-effective approach. This technology involves selection of suitable native plant species, isolation and inoculation of site-specific nitrogen-fixing microbial strains and nutrient mobilising vesicular arbuscular mycorrhizal species in combination with organic amendments to control the ...


    By Inderscience Publishers

  • An experimental study on bioremediation and photolysis of enrofloxacin

    Recent studies have identified the occurrence of a vast number of pharmaceuticals into the municipal wastewater through excreted urine and feces. Some of these pharmaceutical compounds are degraded in the environment. However, there have been reports on the presence of pharmaceutical active compounds in drinking water. Concerns have been raised over the potential adverse effects of these ...


    By IWA Publishing

  • Enzymatic oxidation of phenolic compounds in coffee processing wastewater

    Peroxidases can be used in the treatment of wastewater containing phenolic compounds. The effluent from the wet processing of coffee fruits contains high content of these pollutants and although some studies propose treatments for this wastewater, none targets specifically the removal of these recalcitrant compounds. This study evaluates the potential use of different peroxidase sources in the ...


    By IWA Publishing

  • Arsenic biogeochemical cycle through microbial activity and biodiversity status of Shimsha River in Karnataka, India

    The biodiversity status of fishes was assessed according to International Union for Conservation of Nature (IUCN) criteria from Shimsha River in Karnataka. However, with a growing population the freshwater fishes, resources are under great pressure and affected 30% livelihood. The results showed that populations of the majority of fish species had a significant decline over the past five decades. ...


    By Inderscience Publishers

  • Role of final cover soil in regulating volatile organic compounds: emissions from solid waste disposal sites in developing countries

    The objective of this study was to investigate the emission of Volatile Organic Compounds (VOCs) from solid waste disposal sites and their remediation at final cover soil. This research was conducted using field cover soil lysimeters placed at the surface of a solid waste dumping area and batch experiments in the laboratory. It was found that benzene, toluene, chloroform and perchloroethylene ...


    By Inderscience Publishers

  • Transformation of azo dyes during moist heat sterilisation: a potential source of error in microbial decolourisation

    This paper presents the role of moist heat sterilisation in decolourisation of azo dyes during autoclaving itself, thereby leading to over estimation of actual decolourisation through subsequent microbial process. This surprise phenomenon was probed in detail by studying the effects of temperature, pressure and role of electron donor/carbon sources on decolourisation. In the presence of 10 ...


    By Inderscience Publishers

  • Biotechnology of hydrocarbon bioremediation in soil washing slurry

    Application of Bioremediation for low cost contaminated soil washing slurry treatment with quick hydrocarbon reduction and improved sustainability. The application uses proprietary microbial formulation with a slurry bioreactor in order to accelerate the degradation process and to make it compatible with soil washing technology. The end result is a treated soil which meets the requirements for ...


    By Biofuture Ltd

  • Bioremediation of petroleum contaminated Soils in Brazil Using AgroRemed

    At Atuba at the corporate site of COPEL, a state owned utility company, soil was heavily contaminated with transformer oil due to a long history of contamination since 1964 probably due to unsafe practices of storage and cleanup. The level of contamination measures as TPH in soil was as high as 766,695 ppm and much of the contamination was at a depth of 1 meter. The site is located on a hill and ...


    By Sarva Bio Remed, LLC

  • Heavy metal resistant anaerobic bacterial strains from brewery digester sludge

    This work focused on the study of the types of heavy–metal–resistant anaerobic bacteria from the sludge of a brewery wastewater treatment plant exposed to high concentrations of dissolved Cd (II), Cu (II) and Zn (II). Characterisations were carried out by polymerase chain reaction of the 16S rRNA gene of bacterial strain. Using special culture media, two types of strong heavy metal–resistant ...


    By Inderscience Publishers

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