metals in wastewater Articles

  • Industrial Wastewater Treatment - Paint/Pigment Dye Industry

    Innovation in Industrial Wastewater Treatment - Sustainable Water Reuse Strategies Applied to the Paint/Pigment Dye Industry Introduction The paint/pigment industry is a large consumer of process and wash water to be used in various water based paint pigment products. The water usage for this industry is estimated at 75-85 million gallons per day, with ...

  • Wastewater Metals Removal

    Industrial Wastewater Treatment Success Stories Wastewater Treatment Metals Removal Ton Nerve Gas Agent Container Rinse Waters ...


    By Integrated Engineers Inc.

  • Metal treatment facility eliminates wastewater

    The Facility A specialty metals facility located in Euclid, Ohio rolls, forms, cuts and presses specialty metals for the aircraft and aerospace, auto and electrical industries. This plant specializes in high value molybdenum and tungsten, as well as copper parts. The Problem As a result of the metal rinsing processes in the facility discharged water into ...

  • Metals & Finishing Industrial Wastewater Treatment

    Industrial Wastewater Treatment Success Stories Metals and Finishing Industrial Wastewater Treatment Aircraft Components - 80% Cost Reduction ...


    By Integrated Engineers Inc.

  • Metal Processing Facility 1 Wastewater Treatment

    Integrated Engineers, Inc. conducted the below treatability on a Metal Processing facility that uses soluble machine coolants in their machining process; below are the ...


    By Integrated Engineers Inc.

  • Metal Machining Facility Wastewater Treatment Case Study

    Effective Breaking of the Oil Emulsion in Machine Shop Wastewater This is the result of our Floccin 1105 product treating a sample from a Metal machining facility. The sample was at a pH of 9 and CO2 was added to bring the pH down to neutral (pH at 7). The Floccin 1105 was very effective at clarifying the waste, breaking the strong oil emulsion and capturing the oil. The ...


    By Integrated Engineers Inc.

  • Metal Processing Facility 2 Wastewater Treatment

    Integrated Engineers, Inc. conducted the below treatability on a Metal Processing facility that uses soluble metal cutting oils in their machining process; below are the results. The treatment required no pH adjustment from the 7.0 pH. The best product was treated with 0.679 grams of Floccin-HP (powdered) in a 100 ml sample and required moderate mixing. The dosage equates to a treatment of 56 ...


    By Integrated Engineers Inc.

  • Analysis of wastewater for metals using ICP-OES

    The analysis of wastewater for trace metal contamination is an important step in ensuring human and environmental health. Wastewater is regulated differently in different countries, but the goal is to minimize the pollution introduced into natural waterways. In the U.S., the Environmental Protection Agency (EPA), in conjunction with the states, negotiates a discharge permit through the National ...


    By PerkinElmer, Inc.

  • Removal of ionic metals from wastewaters of COD determinations

    Chemical Oxygen Demand (COD) determinations generate highly disruptive waste streams with chromium, mercury and silver. These should follow specific waste management approaches in search of environmental and economical benefits, for which this work reports simple chemical procedures allowing toxic metal removal. Chromium(VI) is reduced to chromium(III) and total chromium is precipitated with ...


    By Inderscience Publishers

  • East coast metal treatment facility recycles wastewater

    Evaporator/Crystallizer Solves Pollution Problems The Facility A major industrial Fortune 500 company manufactures armored-tracked vehicles for the U.S. Army. The plant is located in York County, Pennsylvania. The Problem Aluminum and steel assemblies and parts undergo chemical dip and spray treatments before painting. The ...

  • Metal Polishing

    Integrated Engineers, Inc. conducted a treatability test for a facility that polishes stainless steel. We were asked to assist them in meeting their local discharge requirements as the flocculant they had been using was not working sufficiently. The initial pH of the wastewater upon arrival was 7.0. 3.0 grams of Floccin-G was used per 1000 ml jar of wastewater. After mixing for 10 minutes, the ...


    By Integrated Engineers Inc.

  • Heavy metal removal from wastewater using various adsorbents: a review

    Heavy metals are discharged into water from various industries. They can be toxic or carcinogenic in nature and can cause severe problems for humans and aquatic ecosystems. Thus, the removal of heavy metals from wastewater is a serious problem. The adsorption process is widely used for the removal of heavy metals from wastewater because of its low cost, availability and eco-friendly nature. ...


    By IWA Publishing

  • 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

  • The use of some industrial by products for adsorptive removal of heavy metals from wastewater

    Most available technologies applied in the removal of metal contaminants in aqueous systems use the well established processes of adsorption. Adsorbents currently in use are either too expensive or not readily available for wastewater treatment. There is a need to develop new adsorbents which are readily available at low cost to remove metal contaminants in aqueous system. In this work, Okra ...


  • Efficient Treatment of Complex Wastewaters at Umicore Precious Metals using Biotechnology

    Untitled Document Paques and Umicore have demonstrated the feasibility of biological treatment of the highly complex Hoboken wastewaters in ...


    By Paques B.V.

  • Influent concentrations and removal performances of metals through municipal wastewater treatment processes

    This extensive study aimed at quantifying the concentrations and removal efficiency of 23 metals and metalloids in domestic wastewater passing through full-scale plants. Nine facilities were equipped with secondary biological treatment and three facilities were equipped with a tertiary treatment stage. The metals investigated were Li, B, Al, Ti, V, Cr, Fe, Ni, Co, Cu, Zn, As, Se, Rb, Mo, Ag, Cd, ...


    By IWA Publishing

  • Use of aquatic plants in removing heavy metals from wastewater

    Phytotechnologies involving use of plants for pollutant removal gained importance during the last two decades. Terrestrial and aquatic plants possess high metal sorption capacity, and hence find their use as inexpensive materials for removing metals from environment. Aquatic biomass irrespective living or dead, exhibits capacity to remove heavy metals from wastewater. The sequestration of heavy ...


    By Inderscience Publishers

  • Leaching of heavy metals from wastewater sludge, using a thermostatted column

    We have previously patented a process for the extraction of toxic and valuable metals from foundry sands using a thermostatted column. In this paper, we describe a similar device for the removal of toxic metals from wastewater sludge. The wastes were finely ground and suspended in an aqueous pulp, and 10-40g of mineral acid or sodium hydroxide were added to reach a pH of 2, 5, 7 and 10, together ...


    By Inderscience Publishers

  • Heavy metal content of Swedish municipal wastewater sludge – status and goals

    In 2014, 25% of the sludge produced at Swedish municipal wastewater treatment plants was applied to agricultural land. Even though the Swedish heavy metal limits for sludge to be used in agriculture are amongst the most stringent in the EU, more stringent heavy metal limits are proposed. Most sludge applied to agricultural land is recycled within a certification system, Revaq. Revaq has ...


    By IWA Publishing

  • Development of a packed-bed reactor for the recovery of metals from industrial wastewaters

    Affinity separation is becoming well established for the purification and recovery of metals from industrial wastewaters. Although the method has been successfully applied on a bench-scale, there is a need for reaction engineering studies to scale-up the process for use in large-scale wastewater purification and recovery of valuable metals. In this study, a pilot-scale packed-bed reactor has been ...


    By Inderscience Publishers

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