2 edition of Recovery of copper and zinc from mine waste effluents with carboxylic-type ion-exchange resins found in the catalog.
Recovery of copper and zinc from mine waste effluents with carboxylic-type ion-exchange resins
A. J. Gilmore
by Dept. of Energy, Mines and Resources, Mines Branch in Ottawa
|Statement||[by] A. J. Gilmore.|
|Series||Technical bulletin, TB 127|
|LC Classifications||TN26 .A356 no. 127, TN780 .A356 no. 127|
|The Physical Object|
|Pagination||iii, 8 p.|
|LC Control Number||74862085|
Pure zinc of % and % were produced by electrowinning of purified brass ash and flue dust leach solutions, respectively. Leach residue containing high amount of copper was melted with various fluxes and more than 99% of copper recovery ratio was achieved. The copper laden wastewater passes through the resin bed and copper ions are exchanged for hydrogen ions until the unit is exhausted. Once the resin bed is exhausted, sulfuric acid is used to regenerate. The spent solution of copper ion and sulfuric acid is sent to another system for disposal.
assess environmentally sound and economically efficient practices for recovery operations". This Guidance Document is concerned with the principal recovery operations applicable to copper, lead and zinc wastes. It includes those wastes given in OECD Decision C(92)39/FINAL Appendix 4 - . Separate recovery of copper and zinc from acid mine drainage using biogenic sulfide. Sahinkaya E(1), Gungor M, Bayrakdar A, Yucesoy Z, Uyanik S. Author information: (1)Environmental Engineering Department, Harran University, Sanliurfa, Turkey. [email protected]
Other common industrial uses of ion ex- changer for metal ion removal and recovery are copper and zinc recovery in rayon production, chromates in blow off from cooling waters, gold, copper, nickel, zinc, chromium, etc., from plating rinses waters, rare earth separation, etc. 10 As the ion exchange resins have fixed pores. Rates of copper ions removal from waste solution by cementation, using an iron rod that was covered with the screen, and the cementation kinetics of copper deposition from sulfate solutions onto iron were studied under different conditions of initial copper ions concentration, initial pH of the solution and solution velocity. It was found that the rate of copper ion removal by cementation onto.
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Huge amounts of effluent of low copper content are generated in electrical and electronic parts manufacturing industries.
Here we report an adsorption process using strongly acidic exchanger Dowex G for copper recovery from dilute sulfate solution containing – g/L copper, which is similar to the chemical and mechanical polishing (CMP) waste generated in electronic by: Application of Ion Exchange to the Recovery of Copper.
IX is widely used in waste-water treatment, both for recovery of valuable metals and for removal of hazardous species before discharge. A resin with iminodiacetic acid functionality (Fig. 1) was selected for this application. Ion exchange resins find important applications in the separation and recovery of valuable metals as an end process in WEEE.
The recovery of palladium, copper, silver, and gold from printed circuit boards in cell phones was investigated by Quinet et al. Ion Exchange. An ion exchange is a chemical reaction in which heavy metal ions from wastewater are exchanged for a similarly charged ion attached to a solid particle.
The solid ion exchange particles are either naturally occurring inorganic zeolites or synthetically produced organic resins. Recovery and separation of valuable metals (copper and zinc) from acidic mine waters by ion-exchange resins.
A: International Conference on Environmental Science and Technology. "16th International Conference on Environmental Science and Technology CEST, SeptemberRhodes, Greece". Author: Xanel Vecino Bello, Mònica Reig i Amat, Julio López Rodríguez, César Alberto Valderrama Angel, Oriol.
In the present study, the recovery of ammonium ions from landfill leachate of municipal solid waste was investigated using four ion exchange resins: Amberlyst 15 Wet (strong acid cation), Lewatit. Brine/HCI.
Zinc is normally considered as a divalent cation that would be easily picked up by standard cation exchange resins, including AmberSep™ G26 H, Resin. While this is true, an interesting property of ionic zinc (like iron) is that in the presence of acid or brine, zinc forms multivalent anionic complexes that can be captured on anion exchange resins such as AmberSep™ 21K XLT Resin.
the minerals of copper, zinc and iron . In the mine dump water of the Shemur copper mine and the Tarnier copper-zinc mine the concentrations of chalcophile elements reach several grams per liter (Table 1), which is typical of the initial, unstable period of sulfide oxidation.
It is important to recycle such waters recovering copper and. Lead Zinc Copper mg/g M. spicatum M. spicatum P. lucens S. herzegoi pes diversity results in efficient nutrient removal from primary It has to be noted that zinc uptake capacity of different cells appears most of the time on the second position after lead.
Copper, nickel, zinc, manganese etc. are co-precipitated in Fe oxides and cobalt, iron, nickel and zinc are co-precipitated in manganese oxides (Stumm and Morgan, ; Noller et al., ). Even though chemical precipitation is a widely used method, it has the drawbacks of producing large amount of concentrated and further toxic sludge wastes.
In book: Electronic Waste Management and Treatment Technology (pp) gold ore waste effluents containing copper. Min. Review of the application of ion exchange resins for the recovery. In the untreated secondary effluent trial, the microalgae removed up to % of the copper, reaching a lowest final concentration of ppb after 10 days.
Zinc was reduced by up to %, reaching ppb after 10 days. The removal rates varied significantly with the microalgae strain. López, ). Such demand led to the application of copper cementation in the processing of mine waters in Spain and Sardinia as early as BC by Phoenicians.
Copper cemen-tation was adopted later by Roman miners and subsequently spread to become common in the recovery of copper from mine waters and acid leaching until the advent of solvent ex.
Now I will demonstrate how to recover copper from the old Nitric solution with a steel tube or rod. The goal of this job is not to throw anything out and use it all, the price of copper is good at.
exchangers are synthetic organic ion exchange resins. It can be used only low concentrated metal solution and this method is highly sensitive with the pH of the aqueous phase.
Ion exchange resins are water-insoluble solid substances which can absorb positively or negatively charged ions from an electrolyte solution and release.
Acidic mineral effluents are treated to meet federal and provincial threshold values by removing suspended solids, neutralizing free acidity and removing iron and other metals, particularly arsenic, copper, lead, nickel, cadmium and zinc.
In Table 1 the regulations for two provinces of. Gold recovery from cyanide solution by a bacterial consortium was studied by Aitimbetov et al. The main mechanism underlying this process was the degradation of the metal cyanides by the microbial consortium associated with the release of gold ions.
The Au was subsequently precipitated as Au(0) on iron and zinc reducing agents. Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product.
After treatment, the treated industrial wastewater (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment. Most industries produce some trends have been to minimize such production or. This process consumes 2, to 3, kWh t –1 of copper produced.
The copper is deposited on the cathode and the gases produced at the anode (O 2, Cℓ 2) are recovered selectively and returned to the process. This method produces an extremely pure copper that can then be rolled (hot or cold), drawn or even formed into tubes before being sold.
1- Various processes exist for recovery of zinc from effluents that is mentioned in this paper a few examples such as Metsep process, Mes process and Espindesa process.
2- In Metsep process before solvent extraction is carried out one ion exchange step. Ion exchange resin is washed with water and is obtained extracted zinc chloride.
recovery of valuable or toxic metals from municipal solid waste incineration ash. The recovery of e.g. copper and zinc and removal of other toxic metals from MSWI ashes will not only recover valuable metals that would otherwise be land filled, but also reduce the toxicity of the ash and.Zinc Theoretical Solubility of Zinc Hydroxide vs.
pH A Actual Concentration Zin B Figure 7 - Theoretical Solubility of Zinc Hydroxide. Figure 7 can be used to determine how the concentration of zinc in water is affected by pH. Suppose a wastewater contains dissolved zinc at 4 mg/L and is at pH = This is shown at point A in the diagram.The capacity of ion exchange resins, MN and C H, for the removal of copper ions from aqueous solution has been investigated under different conditions, namely: initial solution pH, initial metal-ion concentration and contact time.
The adsorption of Cu(II) on these resins follows the ﬁrst-order reversible kinetic.