DNA-based water test Articles

  • Heavy Metals Water Testing Powered by DNA

    Water pollution is a worldwide problem affecting developing and developed countries alike. Heavy metal contaminants are one prevalent type of water pollutant. They are persistent in the environment once d is charged and removal from source waters is necessary to ensure a clean drinking water supply. The problem of heavy metal pollution arises from several sources. Heavy metals such as uranium can ...


    By ANDalyze, Inc.

  • 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.

  • The DNA Revolution for Water Professionals

    Imagine trying to solve a problem when you are provided just 1% of the total data. This is essentially the case in analyzing water and wastewater microbiomes. Conventional microbiological testing methods such as culture and microscopy can identify only about 1% of microorganisms that are contained in a ...


    By LuminUltra Technologies Ltd.

  • A new Use for DNA - Testing for Heavy Metals with DNAzyme Technology

    A completely new technology is now available that offers a new way to test water for contaminants andgreatly reduces the time, effort, costand complexity of testing water samples for contaminants such as lead ind rinking water. DNA sensor technology combined with a handheld fluorimeter platform tests water samples within two minutes, giving results at the push of abutton. Protecting public health ...


    By ANDalyze, Inc.

  • Analysis of water level changes in Lake Urmia based on data characteristics and non-parametric test

    Lake Urmia water level has fluctuated during many years. We investigated water level data (annual maximum, minimum and average series in the period of 1966–2012) to evaluate changes based on long-term and seasonal patterns over time, data characteristics and temporal change analysis. Our tools for the mentioned analyses included seasonal trend decomposition using loess (STL); normality and ...


    By Inderscience Publishers

  • Purolite helps gelatin and hydrolyzed collagen producers improve product quality Case Study

    Purolite adsorbent resins help producers of gelatin and hydrolyzed collagen improve product quality by removing odor and taste compounds, making the products suitable for mixing with foods without compromising flavor. Gelatin is a protein-based substance derived from bones, skin and other tissues of animals such as cows, pigs, chickens and other animals. Gelatin and collagen are made from the ...


    By Purolite Corporation

  • Development of Water Quality Test Kit Based on Substrate Utilization and Toxicity Resistance in River Microbial Communities

    Methods for measuring toxicity or respiratory activity of microbial cultures can be used as tools for assessing the presence of chemicals and their impact on the streams. The proposed toxicity test is based on the respirometric characteristics of the bacteria according to the principals of Biolog’s microplate system. As the microorganism ...


    By University of Tehran

  • Testing for Nitrates in Water, what are the Options?

    Nitrate is a naturally occurring substance in the environment and is commonly found in most water sources, it is usually only a cause for concern in areas where water supplies can be affected by farm runs offs and agriculture, its use as a fertiliser can cause increased levels in water supplies The ...


    By Camlab Limited

  • Apartment Water Test - Case Study

    We had successfully mitigated this exact situation at another property (Family Tree Apartments] which also had extensive pin hole leaks and water heater failures. Based upon this prior exceptional success, it was clear that the H20 Solutions USA, LLC team was again needed to engineer a solution. H20 Solutions USA, LLC is analysis revealed that the water supply in Greenfield, CAis very hard at 18 ...


    By HydroFLOW USA

  • Falconi Tropicana Honda, NV Case Study

    Falconi Tropicana Honda, NV PulseOx®CASE STUDY Falconi Tropicana Honda Environmental Remediation BTEX + MTBE Remediation PulseOx Case Study Summary – MTBE Remediation Broadbent & Associates, Inc. (Broadbent) selected APTwater’s PulseOx® AOP technology for the remediation of gasoline release at a former car dealership in ...


    By APTwater LLC

  • Comparison and verification of four field-based microbiological tests: H2S test, Easygel®, Colilert®, Petrifilm™

    The UN defines water supplies as ‘improved’ or ‘unimproved.’ These indicators are easy to measure, but do not reflect water quality, which requires laboratory or field tests. Laboratory and test availability, expense and technical capacity are obstacles for developing countries.This research compares and verifies four low-cost, field-based microbiological tests: the EC-Kit (Colilert® and ...


    By IWA Publishing

  • Fungal Pathogens Identified by PCR and DNA Sequencing

    Aspergillus is a type of fungus that is commonly found in the environment and in buildings that have suffered water damage or elevated humidity levels.  For people with weakened immune systems, breathing Aspergillus spores can lead to infections. According to the Centers for Disease Control and Prevention (CDC), “Aspergillosis is an infection caused by a fungus called ...


    By EMSL Analytical, Inc.

  • Iron-based sorption materials for the removal of antimony from water

    The objective of this work was to verify the sorption properties of granular filter materials (GEH, Bayoxide E33, CFH12) during the process of removing antimony from water. Pilot tests showed that the use of iron-based sorption materials could possibly decrease the antimony content in water to the values limited for drinking water. At an average concentration of antimony in raw water of 58.3 ...


    By IWA Publishing

  • Biodiversity Detectives Solve Mysteries with Environmental DNA

    For years, Monterey Bay Aquarium’s 1.2 million gallon main tank has been a source of thrill for visitors seeking fish-eye views of life in the pounding Pacific Ocean right outside its doors. Now, thanks to advances in DNA sequencing, it’s also becoming a model for how to survey life inthat vast ocean with just a few glasses of water. In a study published last January in ...


    By Ensia

  • Faster, more accurate test results for water analysis

    The future is bright for a Guelph company whose innovative water-quality monitoring technology is helping industries and municipalities save millions of dollars while better protecting the environment. MANTECH manufactures water analysis systems that provide faster, more accurate test results while using environmentally-friendly methods. Incorporated in 2010, MANTECH has worked with Innovation ...


    By MANTECH Inc.

  • Water quality testing: solutions from catchment to waste

    Globally, over 80% of the wastewater generated by society flows back into the environment without being treated or reused.1Clean water is an essential part of daily life, from catchment all the way through to wastewater treatment, therefore analysis throughout the whole cycle ...

  • Evaluation of DNA extraction methods and dilution treatment for detection and quantification of Acanthamoeba in water and biofilm by real-time PCR

    Acanthamoeba, human pathogens and natural hosts of pathogenic bacteria, may be accurately detected and quantified by real-time PCR if Acanthamoeba DNA are properly extracted and PCR inhibitors are effectively eliminated. However, the optimization of DNA extraction methods has not been reported for Acanthamoeba. This study compared the effectiveness of two DNA extraction/purification methods ...


    By IWA Publishing

  • Water insecurity in Indigenous Canada: a community-based inter-disciplinary approach

    Water insecurity in Northern Indigenous communities in Canada remains a pressing problem, with multiple dimensions and health impacts. We carried out a case study of long-term water insecurity in the Southern Inuit island community of Black Tickle, Labrador, where there is no piped water and people rely on an under-funded potable water dispensing unit (PWDU) and unmonitored water sources. Our ...


    By IWA Publishing

  • Haar wavelet-based adaptive finite volume shallow water solver

    This paper presents the formulation of an adaptive finite volume (FV) model for the shallow water equations. A Godunov-type reformulation combining the Haar wavelet is achieved to enable solution-driven resolution adaptivity (both coarsening and refinement) by depending on the wavelet's threshold value. The ability to properly model irregular topographies and wetting/drying is transferred from ...


    By IWA Publishing

  • Community-based wastewater treatment systems and water quality of an Indonesian village

    This paper examines the impact of community-based water treatment systems on water quality in a peri-urban village in Yogyakarta, Indonesia. Water samples were taken from the wastewater treatment plants (WWTPs), irrigation canals, paddy fields and wells during the dry and wet seasons. The samples were tested for biological and chemical oxygen demand, nutrients (ammonia, nitrate, total nitrogen ...


    By IWA Publishing

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