Water Treatment Plants

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Jean-pierre Poyet - One of the best experts on this subject based on the ideXlab platform.

  • Real-time supervision of industrial waste-Water Treatment Plants applied to the surface Treatment industries
    Water Research, 1995
    Co-Authors: Konrad Szafnicki, Jacques Bourgois, Didier Graillot, Dominique Di Benedetto, Philippe Breuil, Jean-pierre Poyet
    Abstract:

    The project described in this paper consists of two main stages: the development of a dedicated instrument enabling continuous simultaneous measures of industrial pollutants (e.g. metal ions: Ni2+, Cu2+, Zn2+, ...) and the design of a Real-time Expert System (RTES) which would provide better information and decision support so as to improve the supervision of waste-Water Treatment Plants in real-time, applied to the surface Treatment (electroplating) industries. The sensor is based on the principle of spectral absorption analysis. The real-time expert system is being developed using a commercial, industrially validated RTES-development software G2™ (by Gensym Corp.). A mixed knowledge-base is being implemented, comprising both types of knowledge: quantitative (e.g. theoretical knowledge issued from chemistry) and qualitative (i.e. operators' 'experience and know-how').

  • Real-time supervision of industrial waste-Water Treatment Plants applied to the surface Treatment industries
    Water Research, 1995
    Co-Authors: Konrad Szafnicki, Jacques Bourgois, Didier Graillot, Dominique Di Benedetto, Philippe Breuil, Jean-pierre Poyet
    Abstract:

    The project described in this paper consists of two main stages: the development of a dedicated instrument enabling continuous simultaneous measures of industrial pollutants (e.g. metal ions: Ni2+, Cu2+, Zn2+, ...) and the design of a Real-time Expert System (RTES) which would provide better information and decision support so as to improve the supervision of waste-Water Treatment Plants in real-time, applied to the surface Treatment (electroplating) industries. The sensor is based on the principle of spectral absorption analysis. The real-time expert system is being developed using a commercial, industrially validated RTES-development software G2™ (by Gensym Corp.). A mixed knowledge-base is being implemented, comprising both types of knowledge: quantitative (e.g. theoretical knowledge issued from chemistry) and qualitative (i.e. operators' 'experience and know-how').

Francisco Borrull - One of the best experts on this subject based on the ideXlab platform.

  • Presence of radionuclides in sludge from conventional drinking Water Treatment Plants. A review
    Journal of Environmental Radioactivity, 2015
    Co-Authors: E. Fonollosa, C Aguilar, Antonio Nieto, Antonio Peñalver, Francisco Borrull
    Abstract:

    The analysis of sludge samples generated during Water Treatment processes show that different radioisotopes of uranium, thorium and radium, among others can accumulate in that kind of samples, even the good removal rates obtained in the aqueous phase (by comparison of influent and effluent Water concentrations). Inconsequence, drinking Water Treatment Plants are included in the group of Naturally Occurring Radioactive Material (NORM) industries. The accumulation of radionuclides can be a serious problem especially when this sludge is going to be reused, so more exhaustive information is required to prevent the possible radiological impact of these samples in the environment and also on the people.The main aim of this review is to outline the current situation regarding the different studies reported in the literature up to date focused on the analysis of the radiological content of these sludge samples from drinking Water Treatment Plants. In this sense, special attention is given to the recent approaches for their determination. Another important aim is to discuss about the final disposal of these samples and in this regard, sludge reuse (including for example direct agricultural application or also as building materials) are together with landfilling the main reported strategies.

  • presence of naturally occurring radioactive materials in sludge samples from several spanish Water Treatment Plants
    Journal of Hazardous Materials, 2010
    Co-Authors: M Palomo, A Penalver, Carme Aguilar, Francisco Borrull
    Abstract:

    Abstract Sludge samples from eleven potable Water Treatment Plants (PWTP), three waste Water Treatment Plants (WWTP) and an industrial Water Treatment plant (IWTP), located in different areas of Spain, mainly in Catalonia, were analyzed for their radiological content in order to determine whether they could be considered as industries affected by naturally occurring radioactive material (NORM). In general, samples from the PWTPs showed higher activity values for the alpha and gamma emitting isotopes than the WWTPs and the IWTP. For example, samples from the area located in the north of Catalonia show values of 234U, 235U and 238U in the range of 84.4-792.1 Bq/kg, 3.3-26.8 Bq/kg and 63.8-585.9 Bq/kg, respectively. In general, for PWTP, the values obtained for the gamma emitter and alpha emitter isotopes showed that both the geology and the industrial activities correlate with the values measured. The magnitude of these results demonstrates the need to measure the radionuclide content of these samples before reaching a decision about their final disposal.

Daniel R. Dietrich - One of the best experts on this subject based on the ideXlab platform.

  • Occurrence and elimination of cyanobacterial toxins in drinking Water Treatment Plants.
    Toxicology and Applied Pharmacology, 2005
    Co-Authors: Stefan J. Hoeger, Bettina C. Hitzfeld, Daniel R. Dietrich
    Abstract:

    Toxin-producing cyanobacteria (blue-green algae) are abundant in surface Waters used as drinking Water resources. The toxicity of one group of these toxins, the microcystins, and their presence in surface Waters used for drinking Water production has prompted the World Health Organization (WHO) to publish a provisional guideline value of 1.0 Ag microcystin (MC)-LR/l drinking Water. To verify the efficiency of two different Water Treatment systems with respect to reduction of cyanobacterial toxins, the concentrations of MC in Water samples from surface Waters and their associated Water Treatment Plants in Switzerland and Germany were investigated. Toxin concentrations in samples from drinking Water Treatment Plants ranged from below 1.0 Ag MC-LR equiv./l to more than 8.0 Ag/l in raw Water and were distinctly below 1.0 Ag/l after Treatment. In addition, data to the worldwide occurrence of cyanobacteria in raw and final Water of Water works and the corresponding guidelines for cyanobacterial toxins in drinking Water worldwide are summarized.

  • Occurrence and elimination of cyanobacterial toxins in two Australian drinking Water Treatment Plants
    Toxicon, 2004
    Co-Authors: Stefan J. Hoeger, Bettina C. Hitzfeld, Glendon Reginald Shaw, Daniel R. Dietrich
    Abstract:

    In Australian freshWaters, Anabaena circinalis, Microcystis spp. and Cylindrospermopsis raciborskii are the dominant toxic cyanobacteria. Many of these surface Waters are used as drinking Water resources. Therefore, the National Health and Medical Research Council of Australia set a guideline for MC-LR toxicity equivalents of 1.3 mg/l drinking Water. However, due to lack of adequate data, no guideline values for paralytic shellfish poisons (PSPs) (e.g. saxitoxins) or cylindrospermopsin (CYN) have been set. In this spot check, the concentration of microcystins (MCs), PSPs and CYN were determined by ADDA-ELISA, cPPA, HPLC-DAD and/or HPLC‐ MS/MS, respectively, in two Water Treatment Plants in Queensland/Australia and compared to phytoplankton data collected by Queensland Health, Brisbane. Depending on the predominant cyanobacterial species in a bloom, concentrations of up to 8.0, 17.0 and 1.3 mg/l were found for MCs, PSPs and CYN, respectively. However, only traces (,1.0 mg/l) of these toxins were detected in final Water (final product of the drinking Water Treatment plant) and tap Water (household sample). Despite the low concentrations of toxins detected in drinking Water, a further reduction of cyanobacterial toxins is recommended to guarantee public safety. q 2004 Elsevier Ltd. All rights reserved.

Konrad Szafnicki - One of the best experts on this subject based on the ideXlab platform.

  • Real-time supervision of industrial waste-Water Treatment Plants applied to the surface Treatment industries
    Water Research, 1995
    Co-Authors: Konrad Szafnicki, Jacques Bourgois, Didier Graillot, Dominique Di Benedetto, Philippe Breuil, Jean-pierre Poyet
    Abstract:

    The project described in this paper consists of two main stages: the development of a dedicated instrument enabling continuous simultaneous measures of industrial pollutants (e.g. metal ions: Ni2+, Cu2+, Zn2+, ...) and the design of a Real-time Expert System (RTES) which would provide better information and decision support so as to improve the supervision of waste-Water Treatment Plants in real-time, applied to the surface Treatment (electroplating) industries. The sensor is based on the principle of spectral absorption analysis. The real-time expert system is being developed using a commercial, industrially validated RTES-development software G2™ (by Gensym Corp.). A mixed knowledge-base is being implemented, comprising both types of knowledge: quantitative (e.g. theoretical knowledge issued from chemistry) and qualitative (i.e. operators' 'experience and know-how').

  • Real-time supervision of industrial waste-Water Treatment Plants applied to the surface Treatment industries
    Water Research, 1995
    Co-Authors: Konrad Szafnicki, Jacques Bourgois, Didier Graillot, Dominique Di Benedetto, Philippe Breuil, Jean-pierre Poyet
    Abstract:

    The project described in this paper consists of two main stages: the development of a dedicated instrument enabling continuous simultaneous measures of industrial pollutants (e.g. metal ions: Ni2+, Cu2+, Zn2+, ...) and the design of a Real-time Expert System (RTES) which would provide better information and decision support so as to improve the supervision of waste-Water Treatment Plants in real-time, applied to the surface Treatment (electroplating) industries. The sensor is based on the principle of spectral absorption analysis. The real-time expert system is being developed using a commercial, industrially validated RTES-development software G2™ (by Gensym Corp.). A mixed knowledge-base is being implemented, comprising both types of knowledge: quantitative (e.g. theoretical knowledge issued from chemistry) and qualitative (i.e. operators' 'experience and know-how').

Stefan J. Hoeger - One of the best experts on this subject based on the ideXlab platform.

  • Occurrence and elimination of cyanobacterial toxins in drinking Water Treatment Plants.
    Toxicology and Applied Pharmacology, 2005
    Co-Authors: Stefan J. Hoeger, Bettina C. Hitzfeld, Daniel R. Dietrich
    Abstract:

    Toxin-producing cyanobacteria (blue-green algae) are abundant in surface Waters used as drinking Water resources. The toxicity of one group of these toxins, the microcystins, and their presence in surface Waters used for drinking Water production has prompted the World Health Organization (WHO) to publish a provisional guideline value of 1.0 Ag microcystin (MC)-LR/l drinking Water. To verify the efficiency of two different Water Treatment systems with respect to reduction of cyanobacterial toxins, the concentrations of MC in Water samples from surface Waters and their associated Water Treatment Plants in Switzerland and Germany were investigated. Toxin concentrations in samples from drinking Water Treatment Plants ranged from below 1.0 Ag MC-LR equiv./l to more than 8.0 Ag/l in raw Water and were distinctly below 1.0 Ag/l after Treatment. In addition, data to the worldwide occurrence of cyanobacteria in raw and final Water of Water works and the corresponding guidelines for cyanobacterial toxins in drinking Water worldwide are summarized.

  • Occurrence and elimination of cyanobacterial toxins in two Australian drinking Water Treatment Plants
    Toxicon, 2004
    Co-Authors: Stefan J. Hoeger, Bettina C. Hitzfeld, Glendon Reginald Shaw, Daniel R. Dietrich
    Abstract:

    In Australian freshWaters, Anabaena circinalis, Microcystis spp. and Cylindrospermopsis raciborskii are the dominant toxic cyanobacteria. Many of these surface Waters are used as drinking Water resources. Therefore, the National Health and Medical Research Council of Australia set a guideline for MC-LR toxicity equivalents of 1.3 mg/l drinking Water. However, due to lack of adequate data, no guideline values for paralytic shellfish poisons (PSPs) (e.g. saxitoxins) or cylindrospermopsin (CYN) have been set. In this spot check, the concentration of microcystins (MCs), PSPs and CYN were determined by ADDA-ELISA, cPPA, HPLC-DAD and/or HPLC‐ MS/MS, respectively, in two Water Treatment Plants in Queensland/Australia and compared to phytoplankton data collected by Queensland Health, Brisbane. Depending on the predominant cyanobacterial species in a bloom, concentrations of up to 8.0, 17.0 and 1.3 mg/l were found for MCs, PSPs and CYN, respectively. However, only traces (,1.0 mg/l) of these toxins were detected in final Water (final product of the drinking Water Treatment plant) and tap Water (household sample). Despite the low concentrations of toxins detected in drinking Water, a further reduction of cyanobacterial toxins is recommended to guarantee public safety. q 2004 Elsevier Ltd. All rights reserved.