wastewater analyser Articles

  • Adsorbent Trap for GC Analyses of Volatile Organic Compounds in Wastewater

    Adsorbents used in VOCARB purge traps offer superior adsorption/desorption characteristics, thermal stability, and hydrophobicity for monitoring volatile organic compounds (VOCs) in water. Response factors for compounds listed in US EPA Method 624 show that VOCARB 3000 traps meet the performance requirement for Methods 624/1624.           ...


    By Sigma-Aldrich Co., LLC

  • GC Analyses of Polynuclear Aromatic Hydrocarbons

    Polynuclear aromatic hydrocarbons (PAHs) can be separated by packed column or capillary column gas chromatography. An SPB-5 bonded phase fused silica capillary  column separates the 16 PAHs considered priority pollutants in wastewater by the US Pal SP-301, a liquid crystal stationary phase in packed GC columns, resolves benzo(e)pyrene and benzo(a)pyrene. This publication discusses ...


    By Sigma-Aldrich Co., LLC

  • TOC analyser improves lab efficiency

    Leading instrumentation company HACH LANGE is helping a number of key customers save valuable time and costs with its new IL550 TOC-TN analyser. TOC analysis is vitally important in applications ranging from power generation, wastewater, drinking water, surface water and ultrapure water, to agricultural soils, contaminated land and food. HACH LANGE analysers therefore offer a range of options ...


  • Application of nanofiltration for reuse of wastewater

    The present research is a part of efforts to reuse wastewater by applying nanofiltration (NF) method for the secondary treatment of bio–treated wastewater and to check the quality of product water as irrigation water by using various analytical methods. For this, the performances of three different NF membranes (CK, GE–Osmonics; NF–270 and NF–90, Dow–FilmTech) were investigated using a cross–flow ...


    By Inderscience Publishers

  • Measuring total organic carbon in wastewater

    The continuous TOC analysis of industrial waste water is known to be problematic especially, when the TOC analyser is used as a spill monitor for heavily polluted waste water containing a high-load of particles. Thus, most operators require analysers that enable accurate TOC (total organic carbon) measurements. But do they really get those? Common analysers suffer from clogging and blockages due ...


    By LAR Process Analysers AG

  • Effect of Leaching from Filters on Laboratory Analyses of Collective Organic Constituents

    Membrane and glass fiber filters are widely used in laboratory water and wastewater analyses. During sample filtration, some filters release organic compounds, which may interfere with organic analyses. This research investigated the interferences due to organic leaching in the determinations of dissolved organic carbon, biodegradable dissolved organic carbon, soluble biochemical oxygen demand, ...

  • The application of Flow Injection Technology to automating cold vapor MERCURY analyses

    This document describes the application of flow injection technology to cold vapor mercury analyses. It can be obtained from PerkinElmer by requesting method number ENVA-100. Appendices 1 and 2 show letters from the US EPA indicating acceptability through the Alternate Test Program for both drinking water and wastewater sample analysis. 1.0 Scope and Application 1.1 This ...


    By PerkinElmer, Inc.

  • Benchmarking in the wastewater sector - taking stock

    In order to analyse the success of benchmarking undertaken by utilities in the German water sector, an investigation was carried out in the wastewater sector and how benchmarking affected the efficiency of the processes that the utilities carry out. An expanded reprint of a two part paper describe the findings of a survey that aimed at highlighting the aims, effects and success factors of ...


    By IWA Publishing

  • Simulation of wastewater treatment plant within integrated urban wastewater models

    In the federal state of Hesse in Germany the application of an integrated software modelling framework is becoming part of the planning process to attain legal approval for the operation of combined sewer systems. The software allows for parallel simulation of flow and water quality routing in the sewer system and in receiving rivers. It combines existing pollution load model approaches with a ...


    By IWA Publishing

  • Situation analysis of China’s wastewater discharge

    Great progress has been made in reducing China’s water pollution after decades of efforts. From the perspective of wastewater discharge, the situation of wastewater discharge since 1985 is analysed in this study, with importance attached to industrial wastewater, including wastewater from township enterprises, and to municipal domestic wastewater. In general, the total wastewater discharge in ...


    By Inderscience Publishers

  • Sustainable wastewater treatment chemicals in a dairy

    Problem/Definition Atana Ltd has been tasked in reducing sludge generation produced at the sites effluent plant by introducing a new chemical regime. This would bring considerable savings on their daily running costs; reduce the need for hazardous substances and prevent any corrosive issues through the removal of inorganic chemicals. The plant also has consent issues with FOG and ...


    By Atana Limited

  • Reuse of Wastewater: Johnson & Johnson Medical

     Johnson & Johnson Medical's Sydney plant is recycling water previously discharged from its water purification system. The project demonstrates that common sense 'low-technology' options for recycling industrial process water can ease pressure on both water supply and sewerage systems, and save money at the same time. Background Johnson & Johnson Medical (J&J) ...


  • Wastewater Treatment Municipality Of Saint-Claude

    In Quebec, the municipalities must make sure that their rejections of sewerachieve the goals applied to the receiving medium. The Rotating BiologicalReactor (RBR), developed by the biological processes division of H2OInnovation, showed its effectiveness during more than one year testingproject, which contribute to the obtaining of the Standard Technology (CF-1) certification allowed by the Quebec ...


    By H2O Innovation

  • Efficient Wastewater cleaning for Insulin Production

    Insulin production using biotechnology is now a standard procedure, but it leads to a high level of contaminated wastewater due to tensides which are difficult to break down. A solution provided by EnviroChemie shows how production wastewater output with varying levels of contamination and toxicity can be cleaned efficiently. It combines aerobic and anaerobic steps as well as a low-temperature ...


    By EnviroChemie GmbH

  • Radionuclides in wastewater treatment plants: monitoring of Sicilian plants

    Three Sicilian wastewater treatment plants were monitored to assess the occurrence and the behaviour of radionuclides. Two sampling campaigns (screening and long-term) were carried out during which liquid and solid samples have been analysed. It was found that 131I mostly occurred in the samples analysed during the screening campaign (43% of the analysed samples contained 131I). ...


    By IWA Publishing

  • Water and Wastewater Treatment Chemicals: World Market Report

    Provides continually updated analyses and forecasts for 11 product categories including activated carbon, chelates corrosion inhibitors, defoamers, ion exchange resins, inorganic flocculants, organic flocculants, oxidizers and biocides, pH adjustors, and scale inhibitors in 80 ...


    By The McIlvaine Company

  • Algal-available phosphorus entering the gulf of finland as estimated by Algal assays and chemical analyses

    Received for publication August 11, 2008. Algal-available phosphorus (Paa) in river water and wastewater entering the Gulf of Finland (a Baltic Sea sub-basin) was estimated by a fresh-water and a brackish-water modification of the dual-culture algal assay. The assay results were further related to those obtained by routine chemical analyses. According to the brackish-water assay, an average of ...

  • Water and Wastewater Finance and Pricing: The Changing Landscape

    This new edition of Water and Wastewater Finance and Pricing: The Changing Landscape analyses the process for developing an effective financial plan, focusing on components such as public and private sector financing, credit facilities, system development charges, interest rates, cost of debt issuance, and market conditions. Fully revised throughout, with new coverage of water reuse ...


    By IWA Publishing

  • Lognormal behaviour of untreated and treated wastewater constituents

    This article presents an extensive study to select the theoretical probability distribution that represents the concentrations of major constituents from 35 wastewater treatment plants located in Brazil, as well as to verify the influence of the adopted treatment technology on the data distributions. Due to the lack of a solid basis for selecting the distributions that best fit the data, various ...


    By IWA Publishing

  • Elimination of pharmaceuticals from the wastewater of a pharmaceutical plant

    Roche AG had commissioned the company EnviroChemie to develop a new procedure for a new production facility in Mexico, which prevents the undesired release of ecotoxicologi-cally contaminating drugs into the environment and eliminates pharmaceuticals in the wastewater directly at the point of origin, even before the\ enter the general sewage treatment plant. In the first step, the three different ...


    By EnviroChemie GmbH

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