organics testing Articles

  • Water Treatment Optimization - Case Study

    Drinking water treatment in North America has stringent requirements for effluent water quality, with a great amount of attention being drawn to the presence of hazardous disinfection by-products (DBPs) persisting through water distribution systems. The operation of water treatment plants involves addition of various mixing agents to help with coagulation and settling of organics in the raw water ...


    By MANTECH

  • `Standards are desperately needed for plastic and pesticide contamination in soil´

    In addition to plastic in the oceans, plastic contamination in arable land throughout Europe and other parts of the world is a growing problem. No standards exist for these types of soil pollutants, nor for pesticide residues or their degradation products. For this reason, Professor Violette Geissen is calling for standards to be implemented. On 15 June, Geissen will deliver her inaugural address ...

  • ISO Standard describes aerosol generation for air exposure studies of nano-objects and their aggregates and agglomerates

    The International Organization for Standardization (ISO) recently published standard ISO/TR 19601:2017, “Nanotechnologies — Aerosol generation for air exposure studies of nano-objects and their aggregates and agglomerates (NOAA).”  ISO states that, to evaluate the inhalation toxicity of NOAA, it is important to consider certain ...


    By Bergeson & Campbell, P.C.

  • Innovative Project for Hydrocarbons Contamination

    Baioni Crushing Plants, leader in the aggregate crushing sector has been operating for 40 years, have recently developed equipment and methods for environmental control. Several plants have already been supplied to third parties, now Baioni have full know-how of the technology and can ensure correct conception of the line based on the specifications of the soil to reclaim and can provide ...


    By Baioni Crushing Plants Spa

  • Hazardous waste and not, Baioni-Dicatech system

    The identification, characterization and restoration of contaminated areas now represent a big environmental issue, both at European and national level. In the major industrialized countries the issue of contaminated land has come out in all its gravity in the late seventies when, against a widespread awakening of environmental consciousness, important pollutions events emerged. Consequently, in ...


    By Baioni Crushing Plants Spa

  • Biodegradability of Dissolved Organic Nitrogen: Adaptation of the BOD Test

    To prevent eutrophication in receiving waters, many astewater treatment plants are being firected by regulatory agencies to achieve very low levels of total nitrogen (3-4 mg/L TN or lower) in the effluent. Dissolved organic nitrogen (DON) component is included within these total nitrogen limits. The regulations assume that DON is completely biodegradable, and therefore needs to be included in any ...

  • Test organisms behaviour on municipal and industrial wastewater quality assessment

    Industrial wastewaters quality became a target for the environmental toxicity assessment nowadays. When there are issues with complex effluents for which many chemicals cannot be quantified and/or interactive effects are likely to be significant, the use of bioassays with different test species becomes a more reliable way in the assessment of toxicity. Ecotoxicity evaluation of the several ...


    By MicroBioTests Inc.

  • Relationships between exposure and dose in aquatic toxicity tests for organic chemicals

    There is continuing debate about the merits of exposure‐based toxicity metrics such as median lethal concentration (LC50) versus organism‐based metrics such as Critical Body Residue (CBR) as indicators of chemical toxicity to aquatic organisms. To demonstrate relationships and differences between these two metrics we apply a simple one‐compartment toxicokinetic mass‐balance model for ...


    By John Wiley & Sons, Ltd.

  • Testing monolithic activated carbon adsorbers for in-line removal of organic micropollutants

    Anthropogenic organic micropollutants (OMP) occur along the whole urban water cycle including drinking water. Various OMP can be efficiently adsorbed onto activated carbon. In the present study a commercial monolithic adsorber (MA), originally developed for gas treatment, was examined for the removal of OMP from drinking water. As a promising advantage, the adsorber can be introduced into ...


    By IWA Publishing

  • Organic waste biodegradability test bio methane potential method

    Management Summary The biogas production from a mixture of food waste, garden waste, paper, napkins, plastic, metals and glass and anaerobically digested sludge was monitored until gas production had ceased. The homogenised biowaste mixture was subjected to two pre-treatment methods prior to being fed to the BMP reactors, these were: pasteurisation at 70oC ...


    By Cambi Group AS

  • Organics Monitoring (TOC)

    Total organic carbon (TOC) testing is the traditional method for determining organic matter in water. However there is a far more practical, affordable and often more useful way to measure organic matter. UV absorbance testing (UVA) is rapidly becoming the preferred method of measuring organics even when the levels of organics being measured are very small. Organic Matter Organic ...


    By Real Tech Inc.

  • Organics Monitoring: A Practical Guide

    Preventing product loss, lowering waste treatment costs, and reducing system maintenance and energy consumption through organics monitoring in the chemical, refining, food, and wastewater treatment industries. Summary Process water and steam condensate contamination includes organic, inorganic, and biological components. Sources of organic contamination include process ...


    By GE Analytical Instruments

  • Testing the Waters

    Last summer’s wave of tropical storms left the East Coast scrambling to ensure drinking water quality. Water Quality Products editorial intern Raissa Rocha spoke with Marc Hamel of testing equipment manufacturer Horizon Technology Inc. to discuss the impact weather events may have on water quality. Raissa Rocha: What is your experience with ...


    By Horizon Technology, Inc.

  • Case study - Organic particulate filtration

    Overview A food products company that mixes various types of waxes and other components to make the base for chewing gums was faced with the issue of cleaning up a slightly odorous, visible emission being exhausted from two of their process lines. The components of the emission were hot particles of chewing gum and some volatile organic compounds (VOC's). The particles would quickly clog ...

  • Impact of organic residues on soil microorganisms

    It is well known that organic residue amendments to soil give beneficial effects such as provision of plant nutrients, increased humus content and thereby increased water holding capacity, improved structure and increased cation exchange capacity. Organic wastes can be a valuable fertiliser in terms of phosphorous. Chemical precipitation in the sewage treatment plant makes sewage sludge rich in ...


    By ORBIT e.V.

  • Japanese Organics Recycling Association Formed

    Another backyard composting adage states that compost should have the feel of a wrung-out sponge — damp but not dripping wet. Actually, a wrung-out sponge may be on the dry side for composting, but the analogy does provide a great image for understanding the reasons for balancing moisture. Like a compost pile (or windrow or material in a vessel), a sponge is a solid mass containing an enormous ...


    By BioCycle Magazine

  • ORGANICS DIVERSION - WITH COMPOST MARKETS IN MIND

    Untitled Document California Integrated Waste Management Board collaborates with local agencies, universities and the composting community to increase demand for quality compost. ...


    By BioCycle Magazine

  • Juvenile zebrafish in the vitellogenin blank period as an alternative test organism for evaluation of estrogenic activity of chemicals

    To determine the suitable development period of zebrafish for accurately evaluating estrogenic activities. An enzyme‐linked immunosorbent assay (ELISA) was developed and used to detect the Vtg‐derived yolk proteins and newly produced Vtg, and 9–56 d post‐hatching (dph) was determined as the Vtg‐blank period. Juveniles in this period was found to have lower baseline Vtg level than adult males ...


    By John Wiley & Sons, Ltd.

  • A comparative study of three different assimilable organic carbon (AOC) methods: results of a round-robin test

    Easily assimilable organic carbon (AOC) is frequently used for the assessment of the biological stability of drinking water, which is an important consideration in the control of bacterial growth in distribution networks. The first AOC bioassay was developed in 1982 and is based on growth of two bacterial strains (Pseudomonas fluorescens P17 and Spirillum spp. NOX) in ...


    By IWA Publishing

  • Rapid small-scale column testing of granular activated carbon for organic micro-pollutant removal in treated domestic wastewater

    This study investigates the applicability of the rapid small-scale column test (RSSCT) concept for testing of granular activated carbon (GAC) for organic micro-pollutants (OMPs) removal from wastewater treatment plant (WWTP) effluent. The chosen experimental setup was checked using pure water, WWTP effluent, different GAC products, and variable hydrodynamic conditions with different flow ...


    By IWA Publishing

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