real-time heavy metals Articles

  • ANDalyze - Real Time Testing for Heavy Metals - Whitepaper

    Whitepaper on DNAzyme heavy metals testing technology. 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 discharged and removal from source waters is necessary to ensure a clean drinking water supply. The problem of heavy metal pollution arises ...


    By ANDalyze

  • Heavy Metals in Waste

    Untitled Document Summary and discussion The aim of this report has been to demonstrate the existing knowledge regardng the harmful effects of heavy metals, the ...

  • Heavy Metals in Vehicles II

    Untitled Document Executive Summary Directive 2000/53/EC on End-of-Life Vehicles aims at the prevention of wastes from vehicles and at the reuse, recycling ...

  • Heavy metal & hydrocarbon contaminated sludge

    Solidification of Heavy Metal & Hydrocarbon Contaminated Sewage Sludge Client: North Lanarkshire Council Project Managers: Jacobs Challenge: The former sewage treatment works were decommissioned in the 1970’s. It is thought that during the closure process, demolition material originating from the ...


    By Soilutions Ltd

  • Affinity–based biosensors for heavy metal detection

    In recent years, there has been a pressing need for fast and reliable methods for environmental monitoring. Among the various pollutants, the heavy metals are some of the most harmful because these substances are non–biodegradable and retained by the ecological system. Conventional analytical techniques for heavy metals imply high cost, trained personnel and the repute that they are mostly ...


    By Inderscience Publishers

  • 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

  • Determination of heavy metals in Iranian and imported black tea

    Tea (camellia sinesis) is one of the most popular beverages all over the world. It has originated from China long time ago. About 75% of the estimated 2.5 million metric tons of dried tea that are manufactured annually are processed as black tea which are consumed by many countries (Nas et al., 1993). Currently, consumption of tea as a soft drink is very popular in Iran and its production in 2006 ...


    By University of Tehran

  • Heavy Metal(s) in Every Day Electronics

    “Heavy metal” isn’t associated only with rock music. In sustainability, it refers to real metals like cadmium, mercury and lead. And we can all agree that while a little heavy metal ringing in our earphones is OK, we really don’t want to find heavy metals in our water or soil. However, they’re in the electronics we use every ...


    By Arrow Electronics

  • Removal of heavy metals from aqueous solution by limestone

    This study focused on the removal of Pb(II), Cd(II), Cu(II), and Zn(II) using reagent solutions by natural limestone in a batch system. The sorbent, collected from the Late Cretaceous limestone beds, Tunisia, was characterised by X–ray diffraction (XRD), chemical analysis (XRF) and infrared spectroscopy (FTIR). XRF showed that the studied limestone contained high amount of calcium carbonates. XRD ...


    By Inderscience Publishers

  • Biosorption of heavy metals by utilising onion and garlic wastes

    Onion (Allium cepa L.) and garlic (Allium sativum L.) wastes from market and food canning processes were used for adsorption of Pb2+, Sn2+, Fe2+, Hg2+, As3+ and Cd2+ from ...


    By Inderscience Publishers

  • Temporal Variability of Selected Heavy Metals in Automobile Soils

    Studies on seasonal changes of heavy metal concentration in soils provide vital information for best management options at all times. The study investigated temporal variation in concentration of heavy metals in three towns having automobile service centres in Imo State. The study site is characterized by two major seasons in a year. Heavy metals were found in both arable and automobile soils, ...

  • Removal performance of heavy metals in MBR systems and their influence in water reuse

    The removal performance of heavy metals by two experimental full-scale membrane bioreactors (microfiltration and ultrafiltration) and the influence of activated sludge total suspended solid (TSS) concentration were studied under real operational conditions. Influent and effluent Be, Sc, V, Cr, Mn, Co, Ni, Cu, Zn, As, Mo, Cd, Ba, Sn, Sb, Pb and U concentrations were analysed by inductively ...


    By IWA Publishing

  • Heavy metal contamination from electronic waste recycling at Guiyu, southeastern China

    This study evaluated the effect of electronic waste (e-waste) recycling activities at a regional center, Guiyu, Guangdong, China on heavy metal pollution in the surrounding waterway system. Surface water and sediment collected from the Lianjiang River and its tributaries were analyzed for concentrations of Cu, Pb, Ni, Cd, Hg, and As. Spatially, heavy metals in water and sediment samples decreased ...

  • Adsorption of heavy metal ions by natural and synthesised zeolites for wastewater treatment

    The removal of heavy metal ions, Pb(II) and Cu(II), by adsorption using natural zeolite (NZ), synthesised zeolite (MCM-22) (SZ), and powdered activated carbon (PAC), were examined and compared. The influences of contact time, solution pH and adsorbate concentration have been tested in kinetic runs. The equilibrium sorption capacities of copper and lead ions on NZ, SZ and PAC were found to be ...


    By Inderscience Publishers

  • Preparation and characterization of nanoporous resin for heavy metal removal from aqueous solution

    New nanoporous resin (NPR), based on organic xerogel compounds, was prepared at 150 °C by sol–gel method from pyrogallol and formaldehyde mixtures in water using perchloric acid as catalyst. NPR was characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and nitrogen porosimetry. The metal uptake characteristics were explored using ...


    By IWA Publishing

  • Geochemical Distribution of Selected Heavy Metals in Stream Sediments Affected by Tannery Activities

    Abstract  This study describes the geochemical distribution and potential mobility of selected heavy metals in sediments affected by tanneries established in the Cadeia-Feitoria River basin, South Brazil. Surficial samples were taken at ten sites, in January 2000, during dry season. Metal contents were determined according to their association with main sediment phases by applying a ...


  • Non toxic reagents for SEIBOLD online-analyser for heavy metals

    Reagents and chemistry used with SEIBOLD COMPOSER Analysers are free from toxic compounds. Our "Green Thumb" project started in 2006 and delivered its first products in 2008. In 2011 the complete range of SEIBOLD COMPOSER Analyser for Heavy Metals has been introduced to the market. SEIBOLD's Analyser series COMPOSER is based on spectrophotometric technology. Measured concentration is a function ...

  • 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

  • Evaluation of airborne heavy metal pollution from European sources

    An improved MSC-East model for the evaluation of the atmospheric concentration and deposition of heavy metals in Europe and adjoining regions is described. At present, modelling of lead, zinc, arsenic, cadmium and mercury concentrations is carried out within the EMEP grid. At the same time, MSC East performs model calculations within the whole northern hemisphere to the north of 20°N. Each ...


    By Inderscience Publishers

  • Uptake of heavy metals from aqueous solution by non-conventional adsorbents

    The present study investigates the removal of chromium and copper metal ions from aqueous solution using non-conventional adsorbents such as modified tree barks of acacia arabica (babul) and hardwickia binnata (aajan). In this study the influence of pH, initial sorbate concentration, contact time, adsorbent dose and particle size was investigated. Maximum adsorption for both the metals was found ...


    By Inderscience Publishers

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you