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October 2012 1 Printed Circuit Board Recycling Methods 1. Introduction to Printed Circuit Boards The Printed Circuit Board (PCB1) manufacturing process is very complicated, involving many special chemicals and valuable materials. These materials discharge into the environment in the forms of wastewater, spent solution and solid waste.
Steel slag can normally be obtained from slag processors who collect the slag from steel-making facilities. Slag processors may handle a variety of materials such as steel slag, ladle slag, pit slag, and used refractory material to recover steel metallics.
EXECUTIVE SUMMARY Sandblasting is used to clean dirt, corrosion, paint or other coatings from a variety of surfaces. The clean grit should in most cases contain no hazardous properties. Common industries where sandblasting is applied include shipbuilding and maintenance, transportation .
Use of spent copper slag for land reclamation Waste Management & Research 69 copper slag. These are the most common tests used to charac-terize the strength properties of soils. Characterization of geochemical properties of spent copper slag General characterization The spent copper slag was analyz ed for its elemental content,
Utilization of Solid Waste Particles as Aggregates in Concrete ... and to save the natural resources by using the discarded rubber tyres for partial replacement for coarse aggregates and Copper slag for the partial replacement for fine aggregates. ... Singapore; A study on "Assessment of the use of spent copper slag for land reclamation" in ...
You global resource for nickel recycling and processing, Globe Metal buys all forms of nickel material, including turnings, solid scrap, powder, grinding sludge, filter cake from plating operations, fines, high- and low-grade nickel, nickel waste by-products, spent catalysts, slag, stainless steel powder, stainless steel mill scale from foundries, alloys, rounds, cut-offs, chips, waste water ...
DC-arc furnace technology has been successfully applied to the recovery of cobalt, nickel, and copper from non-ferrous furnace and converter slags. Pilot-plant testwork at Mintek has demonstrated recoveries of 98% for nickel and over 80% for cobalt, at power levels of up to 600 kW.
to refine them, and also arsenic. It may be possible to use the slag as a construction material or for sandblasting, but such uses of copper slag have, historically, resulted in arsenic and lead contamination. Entry B2040 in Annex IX of the Basel Convention includes slag from copper production, mainly for
INFLUENCE OF COPPER SLAG AS PARTIAL REPLACEMENT OF SAND IN CEMENT CONCRETE Suresh T, Ravikumar C PG Scholar, Easa College of Engineering and Technology, Coimbatore ... reuse or reclamation. Copper slag possesses ... (Method of test for strength of concrete Oct 2013) 18. IS 5816:1999 Indian Standard Institution
The copper slag has been used for cement material, sand blasting, reclamation and so on. However, most of the copper slag is stacked high as waste since the production exceeds demand. This study on the application of copper slag as fine aggregate for concrete has been started with the expectation of large amounts of consumption.
The aim of this study was to investigate the feasibility of regenerating spent copper slag into new abrasive materials. As regenerating is the most direct method to reclamation, once it is proven feasible and profitable, life cycle of copper slag in abrasive blast-cleaning could be prolonged and the waste production rate would be minimized.
Union Pacific is the largest railroad in North America, covering 23 states across the western two-thirds of the United States
Soil Investigation in Land Reclamation. ... was uploaded by Laifa Cao on Oct 22, 2014 ... in Singapore have prompted a study on the feasibility of using spent copper slag as fill material in land ...
Konkola Copper Mines Plc New Slag Dump Project Draft Environmental and Social Impact Statement ix September 2014 Declaration of the Authenticity We, Konkola Copper Mines lc, the undersigned, declare that the contents of this Environmental P and
"Assessment of the use of spent copper slag for land reclamation." Waste Management and Research, Vol. 24, No. 1, 67-73. Chu, J. and Yan, S. W. (2006). "Use of vacuum preloading for soil improvement." Herald, International Applied Journal of Central Asian University, Natural and Engineering Sciences Series, Vol. 1, No. 1, 91-97.
1) Effect of Copper Slag on Plasticity Index Copper slag, when mixed with locally available soil in a proportion of 60% CS and 40% soil, the plasticity index of the soil was reduced by 40% . Copper slag with and local soil (available near bhruch) mixes were found to be non-plastic in nature [10].
Figure 7 clearly illustrates that the used copper slag has a rather low ANC in comparison with the clay. Sand has practically negligible ANC. The low ANC value indicates that the spent copper slag is not resistant to acid attack. The concentration of Pb, Cd, Cr, Ba, As, Ag, Se, Cu, Zn, Ni and Hg in the used copper slag leachate are fairly low.
requirements of a reclamation system and a viable cost analysis. RECLAIM POTENTIAL OF ABRASIVES The screen analysis of spent coal slag abrasive at the test shipyard indicated a typical yield of 65 percent reusable product. Screen analysis on spent copper slag at other facilities indicated a typical yield of 80 percent reusable product.
The potential environmental impacts associated with the use of the spent copper slag for land reclamation were also evaluated by conducting laboratory tests including pH and Eh measurements, batch-leaching tests, acid neutralization capacity determination, and monitoring of .
Spent copper slag TCLP test pH stat test Low leaching of heavy metals, making the slag suitable to be used as a fill material for land reclamation [10] Mineral processing waste from an abandoned copper mine facility TCLP, Field Leach Test (FLT), deionized water extraction tests, controlled pH experiments, sequential extractions
Reclamation of lead and plastics R4 10000 No Tunisia Four companies recycling waste papers and ... Copper slag and fly ash utilization at cement kiln Indonesia PT. Semen Cibinong Tbk., Desa Narogong, ... spent copper chloride R2, R6 300 mt/month Malaysia Positive Chemical Sdn. Bhd., Pasir Gudang,
The treated spent copper slag can be recovered and put to good use as replacement of sand in concrete. For structural aspect, the use of copper slag as a partial alternative of sand in concrete allows for up to 10% by mass. Technology and process will involve the treatment and re-constitution of the spent copper slag to satisfy all the ...
COPPER SLAG SUPPLIER FROM GUJARAT (INDIA)
Teik-Thye Luin and Chu (2004) studied the feasibility of using spent copper slag as fill material in land reclamation. After conducting many laboratory tests, they finally concluded that the spent copper slag was a good fill material and it can be used as a fill material for land reclamation.
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