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Showing 1 to 20 of 48 for “"Process water"”.
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Recirculated Process Water in the Flotation of Sulfides
Water scarcity has affected the availability, quality, and quantity of water available for use at water-intensive mineral processing concentrator plants. In response, more sustainable water reuse strategies have gained traction and proved beneficial by reducing used water effluents and freshwater …
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Critical review of disinfection by-products (DBPs) in fresh produce and process water
… of fresh and fresh-cut produce in food processing industry. However, the disinfectant can react with the organic matter in produce and water, leading to the formation of disinfection byproducts (DBPs), which pose potential carcinogenic risks to human health. Despite the common use of …
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An investigation into the impact of residual reagents on flotation in response to process water recirculation
In the mineral pulp phase of the flotation process, water makes up about 80-85% of the constituents, thus making water an important component. The increasing scarcity of water has resulted in greater environmental restrictions which have led to the necessity of mine operations recycling water from …
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The effect of recycle water quality on the flotation of a Platreef ore
… today is to come up with strategies to maximize water resource utilisation. Water is a scarce resource, and every opportunity must be explored to maximize water conservation. Mining operations consume a lot of water for many activities including mineral processing, slurry transport, dust …
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Pentlandite-pyroxene and pentlandite-feldspar interactions and their effect on separation by flotation
… di-sodium tetra borate solution and in synthetic process water in the case of zeta potential determinations, microflotation and ToF-SIMS (time of flight secondary ion mass spectrometry) analyses and in synthetic process water in the case of batch flotation tests.
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Water Quality Impact on Flotation Response: A Focus on Specific Ions and Temperature
Factors such as water scarcity and environmental restrictions have brought about the need to recycle process water within the mining industry. This recycling however causes an accumulation of ions in the process water which may affect plant processes since processing routes are water-intensive. …
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The occurrence of toxic and non-toxic cyanobacteria species in water supplies destined for maize meal preparation process: A case study of Vhembe District
… of eutrophic rivers, lakes, and freshwater reservoirs, and have become part of human diet for thousands of years. Cyanobacteria can multiply quickly in surface waters and form blooms when favourable conditions prevail, such as high temperature, intense light, high pH, and increased …
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Correlating macroscopic rheological behaviour to microstructure of polymer flocculated Mature Fine Tailings (MFT)
… sands. However, these deposits require extensive processing to extract the bitumen and result in generation of vast amount of tailings waste. The growing inventory of tailings represents a huge oil sands industry liability and an enormous environmental issue due to the associated GHG emissions and …
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Hydrothermal processing of biogenic residues in Germany
The mining, processing, and use of finite natural resources is associated with significant interventions in the natural environment. Thus, these and other negative consequences make it necessary to reduce resource consumption. An important field of action is the more efficient use of biogenic …
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An electrochemical investigation on the mechanisms of interfacial interactions of a xanthate collector on PGM surfaces in the presence of ions
Water is a vital transport and process medium used in mineral processing. Fresh water is substantially utilized as an ideal flotation media in the froth flotation process (Rao et al., 2016). However, the mining sector is impelled to save on the consumption of fresh water and reduce waste discharge …
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Anaerobic/aerobic degradation of a textile dye wastewater
… are often incompletely degraded/removed in wastewater treatment plants, leading to the discharge of highly colored effluents to rivers and streams. Concerns by downstream users of that water have led to enactment of effluent color and toxicity standards for plants that treat textile dye …
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Investigating the effect of water quality on the adsorption of a xanthate collector in the flotation of a sulphide ore
… concerns necessitate the recycling of process water within mining operations. On average, recycled water contains more dissolved solids than fresh water. Since water is used as both a transportation and process medium, it is expected that changes in its quality will affect plant …
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Evaluating the Metal Tolerance Capacity of Oil Sands Tailings Microbes, and their Ability to Degrade Naphthenic Acids While Attached to Biochar
Alberta’s oil sands process water (OSPW) was used herein as a case to investigate co-contaminated wastewater treatment; naphthenic acids (NAs, implicated for OSPW toxicity) and metals have been reported in OSPW. This thesis sought to evaluate the metal tolerances of a native OSPW microbial …
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The Effect of Switchable Additives on Colloidal Interactions Found in Oil Sands
… disposal because fine mineral matter in recycled process water are detrimental to bitumen extraction. Cationic and anionic switchable surfactants were investigated, as were switchable ionic strength additives. Switchable ionic strength additives demonstrated the ability to suppress clay zeta …
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Hydrothermal Processes Applied to Sludge Reduction
… have been widely implemented to treat wastewater. CAS systems produce huge amounts of waste sludge and its subsequent treatment represents up to 65 % of the operational costs of Waste Water Treatment Plants. The final disposal of sludge is usually performed by landfilling or incineration, …
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Evaluating the Leachability of Elements from Residuals Generated by Hydraulic Fracturing in Marcellus Shale
… treated sludge from the chemical treatment of process water, solids from the gravity settling of produced water, and sludge solidified prior to disposal in a municipal landfill. Cement kiln dust (CKD), used for solidification, was also considered in this study. All samples were subjected to a …
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Evaluating Leachability of Residual Solids Generated from Unconventional Shale Gas Production Operations in Marcellus Shale
… of a large volume of flowback and produced water that contain suspended material, salts, hydrocarbons, metals, chemical additives, and naturally-occurring radioactive material. The water is impounded at drilling sites or treated off-site, resulting in significant generation of residual …
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Desktop study on Novel Treatment techniques to treat industrial fertilizer effluent
… production produces significant liquid waste as process water used for the various separations, cleaning, emulsifying and dilution processes absorbs various nutrients and contaminants from these production processes. This liquid waste has characteristically high concentrations of nutrients …
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Bubble Dynamics and Dense Phase Composition in 2-D Binary Gas-Solid Fluidized Bed
… for performing the dry coal beneficiation process due to its advantages such as the ability to adjust separation density and the elimination of process water. A two-dimensional (2D) fluidized bed was used to study bubble dynamics and dense phase composition distribution in order to gain …
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Evaluating Determinants of Participation in Voluntary Riparian Buffer Programs: A Case Study of Maryland's Buffer Incentive Program
… or grass buffers planted along streams or other waterbodies are receiving considerable attention by policy makers as a way of providing a range of environmental benefits for society, especially prevention of non-point source water pollution from agricultural land. The current emphasis of riparian …
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