organic pollutant Articles

  • Land use patterns and organic pollution in the rivers

    The riverine system is an important resource of water supply to the communities but rivers are being contaminated due to organic pollutants, which is a serious problem. Organic contamination has been discussed with regard to the different rivers of the world. Various organic pollutants, detected in water and the sediment of the rivers, have been reported. The effects of different land use ...


    By Inderscience Publishers

  • Destruction of persistent organic pollutants - Case study

    Destruction of POPs POPs are molecules that persist in the environment due to their low degradability due to natural processes, and their characteristic of bio-accumulation. Due to their persistence, the bio-accumulation of these molecules over long periods of time causes hazardous effects on flora and fauna, and through the food chain, on human health. ...

  • Using UV Fluorescent Technology to monitor for organic pollutants

    For many years the water industry has relied on traditional sampling techniques to monitor water quality in a wide range of environments. Traditional tests such as BOD, PH, Dissolved Oxygen and Ammonia have formed the bedrock of monitoring parameters. There are however other ways to establish water quality and UV fluorescence offers an up to date solution for the investigation of ...

  • PeCOD vs Other Organic Pollution Testing Methods

    Find out How MANTECH’s PeCOD measures up with other systems in organic pollution testing methods! In James Pickup, Rijkswaterstaat Internship Thesis, read how our PeCOD analyzer performs beside the Total Organic Carbon (TOC) method. Also learn how the PeCOD exhibits a strong correlation to the traditional chemical oxygen demand (CODCr) method, Biochemical Oxygen Demand (BOD5) method and ...


    By MANTECH Inc.

  • Ozone treatment of organic micro-pollutants in sewage sludge

    Organic micro-pollutants accumulate to a certain extent in sewage sludge and are therefore ecologically relevant if the sludge is to be reused in both agriculture and landscaping applications. This paper describes the degradation of endocrine-disrupting compounds and other micro-contaminants by means of ozone and ultrasonic treatment. One of the findings is that, as expected, aromatic compounds ...


    By IWA Publishing

  • Screening of volatile organic compounds as a source for indoor pollution

    For a considerable period of time the presence of an increasing number of chemicals has been observed in almost all aspects of human life. This process also affects the living and working environment of man. Human development, including physical and mental health and well-being, depends on to a great degree on the surrounding environment. Considering that an average person spends a significant ...


    By Inderscience Publishers

  • Modified biopolymer adsorbent for the removal of dissolved organic pollutants

    Chemically modified cellulose fibres were used as adsorbents for the removal of organic compounds and herbicides from water. The chemical modification of fibres by grafting hydrocarbon moieties enhances the adsorption capacity of cellulose substrate. The adsorption behaviour of the modified fibres towards various organic solutes and three herbicides was investigated. The viability of application ...


    By Inderscience Publishers

  • Metals and organic pollutants in snow surrounding an iron factory

    Abstract To estimate air pollution snow samples were collected in March 2001 at six sites in the vicinity of the Kostomuksha factory in Karelia. Seventy-two chemical elements and more than 200 individual organic compounds were identified by inductively coupled plasma mass spectrometry (ICP-MS) and gas chromatography mass spectrometry (GC-MS). It was found that the levels of Li, B, Al, Fe, Ni, Cu, ...


    By Springer

  • Adsorption and catalytic oxidation of organic pollutants using Fe-zeolite

    In this work, a natural zeolite, modified and loaded with iron (NZ-A-Fe) as a heterogeneous catalyst, was characterized for its suitability as a permeable reactive barrier (PRB) material for treatment of aromatic hydrocarbons in groundwater. Adsorption and oxidation processes were analyzed. Batch adsorption tests for benzene, toluene and xylene (BTX) aqueous concentrated solutions were ...


    By IWA Publishing

  • Priority organic pollutants in the urban water cycle (Toulouse, France)

    Application of the European Water Framework Directive requires Member States to have better understanding of the quality of surface waters in order to improve knowledge of priority pollutants. Xenobiotics in urban receiving waters are an emerging concern. This study proposes a screening campaign of nine molecular species of xenobiotics in a separated sewer system. Five sites were investigated ...


    By IWA Publishing

  • Organic and metallic pollutants in water treatment and natural wetlands: a review

    A literature review shows that more than 500 compounds occur in wetlands, and also that wetlands are suitable for removing these compounds. There are, however, obvious pitfalls for treatment wetlands, the most important being the maintenance of the hydraulic capacity and the detention time. Treatment wetlands should have an adapted design to target specific compounds. Aquatic plants and soils are ...


    By IWA Publishing

  • Abatement of organic pollutants using fly ash based adsorbents

    The presence of organic pollutants in the environment is of major concern because of their toxicity, bio-accumulating tendency, threat to human life and the environment. It is a well-known fact that, these pollutants can damage nerves, liver, and bones and could also block functional groups of essential enzymes. Conventional methods for removing dissolved pollutants include chemical ...


    By IWA Publishing

  • Property improvements of nano TiO2 in photodegradation of organic pollutions: a review

    Nano TiO2 as a potential photocatalyst has been widely studied for application of environmental decontamination. In this paper, we examine and review the efforts in property improvements by modification, synthesis technique and operation parameter combined with some theory analysis. The effects of the modification by coupling with precious metal and narrow semiconductor, and doping with N, S, ...


    By Inderscience Publishers

  • Persistent Organic Pollutants (POPs) in leachates from municipal landfills

    The leachates from six municipal waste landfills, located in South-eastern Poland, were studied for the presence of major, Persistent Organic Pollutants (POPs) – PAHs, Polychlorinated Dibenzo-p-dioxins (PCDDs)/Polychlorinated Dibenzofurans (PCDFs), Polychlorinated Dibenzothiophenes (PCDTs) and Polybrominated diphenyl ethers (PBDEs). The measured concentrations varied with respect to the ...


    By Inderscience Publishers

  • Contamination levels and potential sources of organic pollution in an Asian river

    The Houjing River has long been an environmental victim of economic development. Industries that have settled along the bank of this river may have largely contributed to severe organic wastes pollution. This study collected water and sediment samples at various points along the river and measured concentrations of 61 volatile organic compounds (VOCs) and 128 semi-volatile organic compounds ...


    By IWA Publishing

  • Immobilization of organic pollutants in cement pastes admixed with organophilic materials

    The results of 2-chloroaniline (2-CA) immobilization experiments in cement matrices, using an organophilic clay modified with phenolic resins as pre-sorbent, are shown. The 2-CA suspended in water was kept in contact with the organoclay for 24 h, and the slurry obtained was then admixed with ordinary Portland cement (OPC) without additional water, to obtain a firm solid waste. Six cement—clay ...


    By SAGE Publications Ltd

  • Kinetics of enhanced adsorption by polarization for organic pollutants on activated carbon fiber

    The adsorption kinetics for model pollutants on activated carbon fiber (ACF) by polarization was investigated in this work. Kinetics data obtained for the adsorption of these model pollutants at open-circuit, 400 mV, and −400 mV polarization were applied to the Lagergren equation, and adsorption rate constants (K a) were determined. With the anodic polarization of 400 mV, the capacity of ...


    By Springer

  • Case study - Persistent organic pollutants (pops) in wastewater treatment plants

    Project reference Project: Pilot project in in Umeå MWWTP Customer: Umeå MWWTP Project period 2001 Nature of task: Determination of dissolved part of persistent organic pollutants in the high load pollution environment as municipal wastewater ...


    By Exposmeter AB

  • Synthesis of ZnO-CuO/MCM-48 photocatalyst for the degradation of organic pollutions

    The photocatalytic properties of ZnO-CuO catalysts supported on siliceous MCM-48 (Mobil Composition of Matter No. 48) for the degradation of organic pollutions such as methylene blue and salicylic acid under UV light irradiation were investigated. These catalysts were prepared by impregnation of MCM-48 with a mixed aqueous solution of copper acetate and zinc acetate. X-ray diffraction, ...


    By IWA Publishing

  • Preparation and selective adsorption of organic pollutants by an inorganic molecular imprinted polymer

    A novel inorganic molecular imprinted polymer (MIP) was synthesized by adding Al3+ to the Fe/SiO2 gel with Acid Orange II (AO II) as the template. The MIP was characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and nitrogen adsorption-desorption measurement. Compared with the non-imprinted polymer (NIP), the MIP enhanced the ...


    By IWA Publishing

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