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Showing 1 to 19 of 19 for “"Toxicity Characteristic Leaching Procedure"”.
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Toxicity characteristic leaching procedure analysis of dye containing sludges
… contained in municipal sludge using the Toxicity Characteristic Leaching Procedure (TCLP) was investigated. In addition to the dyestuffs, metals and other organic compounds which also leached were identified. Only small amounts of color were detected in the TCLP extracts; the mean ADMI …
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The evaluation and comparison of the extraction procedure toxicity test and the toxicity characteristic leaching procedure for the analysis of municipal wastewater sludges
… wastewater sludges to undergo analysis by EPA's Toxicity Characteristic Leaching Procedure (TCLP) (EPA, 1986b) to determine if the sludge exhibits hazardous characteristics, which preclude land application as a management alternative. The method currently used for the analysis of hazardous wastes …
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Comparison of the extraction procedure toxicity test (EP) and the toxicity characteristic leaching procedure (TCLP) for the analysis of trace organic compounds in land applied municipal wastewater sludges
… leached from solid waste is the Extraction Procedure (EP) Toxicity Test. Because of various operational problems and limitations of the EP, the EPA has developed and plans to implement the Toxicity Characteristic Leaching Procedure (TCLP), which is an expanded version of the EP capable of …
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A study of leaching tests for cement stabilised waste
… was subjected to batch, column, and dynamic leaching tests, and the leaching behaviour of arsenic, copper, lead, selenium, and zinc was investigated. Batch tests included the Australian Bottle Leaching Procedure (ABLP, AS 4493.3-1997), Toxicity Characteristic Leaching Procedure (TCLP, USEPA …
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Phosphate and thermal stabilization of heavy metals in dredged sediments
… Co (adsorption to cryptomelane). The U.S. EPA toxicity characteristic leaching procedure (TCLP) confirmed both phosphate addition and calcination reduced leachability of metals with the combined treatment achieving up to an 89% reduction. In beneficial reuse, the synthetic precipitation …
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Fate of azo dyes in sludges
… leach from landfills was also investigated using Toxicity Characteristic Leaching Procedure (TCLP) analysis. The vinyl sulfone group of the Reactive Black 5 dye appeared to enable the dye to sorb to biomass better than the hydrolyzed form of the dye. Sorption and aerobic color degradation of the …
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Evaluating Leachability of Residual Solids from Hydraulic Fracturing in the Marcellus Shale
… operations in the Marcellus Shale to predict the leaching behavior of select elements in disposal environments. Samples collected for this research were: (1) drilling mud, (2) treated sludge from the chemical treatment of process waters, (3) solids from the gravity settling of produced water, and …
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Properties and environmental impact from mosaic sludge industry incorporated into fired clay bricks
… sludge incorporated into fired clay bricks. The characteristics of raw materials obtained by using the XRay Fluorescence Spectrometer showed that the chemical composition of the raw materials of clay soil and mosaic sludge was high with silicon dioxide and aluminium oxide and with the same …
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Treatment of inorganic hazardous waste constituents found in electric arc furnace dust by solidification/stabilization
… of meeting EPA requirements for heavy metal leaching, and (2) to develop a solidified material that could be used for construction. Results from the studies of the untreated electric arc furnace dust showed that the solubility of cadmium is controlled by the hydroxide species. Lead solubility …
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Physical, mechanical and environmental properties of fired clay bricks incorporated with palm oil mill waste
… fired clay brick owing to high lignocellulosic characteristics. Therefore, this study aims to investigate the physical, mechanical and environmental properties of POMW such as palm kernel shell (PKS), palm oil fuel ash (POFA), palm fibre (PF) and empty fruit bunch (EFB) as a replacement material …
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Utilization of municipal solid waste incinerator fly ash in cement mortars
… for the superior strength properties. Toxicity Characteristic Leaching Procedure (TCLP) tests were performed on these specimens to assess the likelihood of heavy metals being released into the environment. The benefits of using MSWI fly ash in mortar are twofold; namely, the cost …
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Field methods for rapidly characterizing contaminant mobility in paint waste during bridge rehabilitation
… Cd, Cr, Hg, Pb, and Se), iron as well as zinc. Leaching studies included the U.S. Environmental Protection Agency (U.S. EPA) toxicity characteristic leaching procedure (TCLP) and the multiple extraction procedure (MEP). Interestingly, although elevated Pb (5 to 168,090 mg kg-1) and other metal …
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Stabilization/solidification of lead contaminated soil using cement incorporated with sugarcane bagasse
… test and Water Absorption test. In addition, leaching tests were performed to identify the leachate criteria of lead during treatment. Two leaching tests were conducted and they were the Toxicity Characteristic Leaching Procedure (TCLP) and Synthetic Precipitation Leaching Procedure (SPLP). …
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Leaching of metals and metalloids from highway marking glass beads and the potential environmental impact
… fluorescence (FP-XRF) spectroscopy. A number of leaching studies were conducted and included two standard United States Environmental Protection Agency (U.S. EPA) methods: the toxicity characteristic leaching procedure (TCLP) and the synthetic precipitation leaching procedure (SPLP). In addition, …
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Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)
… Absorption and Permeability test. In addition, leaching tests were performed to identify the leachate behavior of heavy metals during treatment. Three leaching tests were conducted and they were the Toxicity Characteristic Leaching Procedure (TCLP), Synthetic Precipitation Leaching Procedure …
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Determining the Mobility of Metals Through Coal Combustion Byproducts in Surface Impoundments by Analyzing Leachate From Modified Saturated Hydraulic Conductivity Tests
… alkaline fluid, with a pH range of 7.08-8.03. Toxicity Characteristic Leaching Procedure (TCLP) was then conducted to see what metals would leach from the ash in an acidic (pH range of 4.93 +/- 0.05) environment. The results were then compared to provide a best and worst case scenario for …
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Environmental consequences associated with ash-stabilisation of organic sludges from the synthol process
… organic waste when exposed to two different leaching media, distilled water and the US EPA's Toxicity Characteristic Leaching Procedure (TCLP) solution. Addressed to a minor extent is the effect of stabilised/solidified organic waste on biomass production of sweetcorn maize. The focus in this …
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Development of a New Cold Binder Course Emulsion Asphalt
… investigation was performed using a Toxicity Characteristic Leaching Procedure (TCLP) test. The new ABBCF mixture offers a significant improvement in stiffness modulus compared to HMA and the reference cold binder course mixture containing conventional limestone filler (LF). Target …
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Evaluating the Leachability of Elements from Residuals Generated by Hydraulic Fracturing in Marcellus Shale
… used to determine overall elemental composition. Leaching experiments were performed with de-ionized water and acetic acid (0.57%, pH 2.88) in an attempt to respectively evaluate the effects of weak and strong fluids that might be encountered by the residuals in landfill environments. Elements …