(PDF) Pengelolaan Limbah Tailing | king chaves
Manajemen Pengelolaan Limbah. 2015 •. Fitriana Meilasari. The growth development in various sectors in the city banjarmasin, to spur the needs of natural resources and the possibility of the problems related to environmental conditions, until socioeconomic problems .One effect of development development are increasing waste .And indirectly ...
Effect of gypsum on the properties of composite binder containing high
Table. 1 and Fig. 1 show the chemical compositions and the particle size distributions of the raw materials, respectively. The morphology of iron tailing powder, slag and gypsum are shown in Fig. 2. It is clear that the fine particles are the most abundant in iron tailing. Compressive strength
Effect of iron ore tailings as partial replacement to fine
The tailing-cement, tailing-lime, and tailing-slag combinations had 1, 2, 5, and 10% binder. The study suggests that chemically stabilizing iron ore tailings can be used and best for construction. ... of 20 mm in size were utilized in the research. The characteristics of cement, FA and CA are listed in Table 1. All tests were done as per …
Preparation of mine backfilling from steel slag-based non …
A binder with 50% granulated blast furnace slag, 35% steel slag and 15% desulfurisation gypsum, a binder to tailing ratio of 1:4, and a slurry concentration of 78% resulted in strength values of 6.69 MPa, 12.05 MPa, 16.36 MPa and 18.37 MPa after 3, 7, 28 and 180 days, respectively. ... SS, DG and ultra-fine tailing are shown in Table 4. …
Optimal Backfilling Materials with High Compressive …
Backfilling material such as tailing (mine wastes) mixing with cement or gypsum has grown throughout the world's underground mines. However, despite their growing popularity, the typical hydraulic and mechanical fill types utilized in many mines still exist. Deep underground mining has increased due to the lack of commercial minerals …
Environmental Risk Assessment System for Phosphogypsum Tailing …
Table 11 shows that the area around this tailing dam had risk values of 1.25, 2.25, 3.25, and 4.25, which indicated the possible danger of environmental risk due to a pollution source based on the geography. In the next area, there was some risk based on the seepage line and dry beach length ratio, the height, capacity, and material of the …
Effect of gypsum on the properties of composite binder
The effect of gypsum on the properties of composite binder containing high-volume slag and iron tailing powder was studied by measuring compressive strength, hydration heat, bound water content ...
Physicomechanical Properties of Gypsum with Mineral …
This work has investigated the possibility of two common minerals (silica flour and talc powder) in modifying composite gypsum's physical and mechanical …
Experimental Study on the Fine Iron Ore Tailing Containing Gypsum …
In this paper, the rheological test was conducted to determine the slurry concentration of iron ore tailing. containing gypsum. en, the samples made from slurry and three binders, Portland cement ...
Minerals | Free Full-Text | Geochemical Stability of Oil Sands …
Oil sands surface mining in Alberta has generated over a billion cubic metres of waste, known as tailings, consisting of sands, silts, clays, and process-affected water that contains toxic organic compounds and chemical constituents. All of these tailings will eventually be reclaimed and integrated into one of two types of mine closure landforms: …
(PDF) Production of epsom, gypsum and other industrial …
Utilization of the discarded tailings by treating with sulphuric acid, available as by-product of zinc-lead smelters of the region, to produce epsom (MgSO .7H O) and gypsum (CaSO .2H O) along with ...
(PDF) GEOCHEMICAL MODELING OF ABANDONED SULFIDIC …
anglesite and gypsum (Table 3). The models showed that interaction between surface solutions and tailings material plays a very important role in the fate and transport of certain pollutants.
Effects of slag-based cementitious material on the …
The chemical compositions and basic properties of the tailing samples are given in Table 1. SiO 2 is the major mineral component at 38.71% by weight. ... in Henan Province, China. Gypsum was purchased from the Yongtai Gypsum Group Co. Ltd., Sanmenxia, China. Clinker was obtained from the Mengdian Cement Co. Ltd., Xinxiang, …
(PDF) Mining Tailing Stabilization Using Waste Materials
Tailings are a by- product or "wastes" of the mining activities. They result from the crushing and grinding of rocks in. order to extract the "ore". Typically, the ore percentages within ...
Geotechnical Properties of Mine Tailings | Journal of …
For example, the Caren tailing impoundment in central Chile was retained by an earth-fill dam with a maximum height of 108 m (James et al. 2011), the Bahuerachi tailing dam in Mexico was designed with a maximum height of 100 m with the capacity of 200 million m 3 tailings, and the Yuhezhai iron tailing dam in Yunnan, China, was designed to a ...
Effect of gypsum on the properties of composite binder …
The influence of gypsum on the properties of the composite binder containing high-volume slag and iron tailing powder are analyzed and discussed. The …
Effects of slag-based cementitious material on the …
The proper treatment of tailings from mining and smelting is very important. Cemented paste backfill (CPB) is a commonly used method for underground tailing …
Current state of fine mineral tailings treatment: A critical …
Quartz, K-feldspars, biotite, chlorite, mica, muscovite, gypsum, and dolomite, with residual amounts of copper and other metals: pH 9.2–10.2 for alkaline flotation of sulfide ores; neutral pH reported for porphyry deposit tailings; limited water salinity data: Smuda et al., 2008, Liu et al., 2013, Hansen et al., 2005
Properties and high-temperature resistance of tailing
According to the XRD data, the crystal sizes for 517 phases and gypsum were obtained via Eq. (3) through the Scherrer equation, while the consequences are put in Table 5. The crystal sizes of gypsum were respectively in the range of 51.28–76.66 nm for the (0 2 0) reflection and 46.98–56.64 nm for the (0 2 1) reflection. The 517 phases …
The Mechanical Properties and Microstructure of Tailing …
The aim of this study was to develop sustainable concrete by recycling concrete aggregates from steel waste and construction waste (iron ore tailings (IOTs) and recycled coarse aggregates (RCAs)) to replace silica sand and natural coarse aggregates. In experimental testing, the compressive strength, peak strain, elastic modulus, energy …
Table 4 | Experimental Study on the Fine Iron Ore Tailing …
Table 4: Experimental Study on the Fine Iron Ore Tailing Containing Gypsum as Backfill Material . Journals; Publish with us; Publishing partnerships; About us; ... Experimental Study on the Fine Iron Ore Tailing Containing Gypsum as Backfill Material. Table 4. Rheological parameters of slurry. Concentration (%) 74: 72: 70: 68: 66: 64: 62: Yield ...
Making Paving Stones from Copper Mine Tailings as …
Table 6 shows the mean values of the results obtained from the bending strength assays made on the mortar by using tailings from D1 and D2. Since the sand was thoroughly replaced by tailings, the latter contain a high percentage of fines with sieve size N° 200—that is, 76.2% and 29.6% in tailings Dams 1 and 2, respectively.
Open Access proceedings Journal of Physics: Conference …
Abstract. In this paper, the gypsum-based self-leveling mortar is prepared using FGD gypsum-based α-hemihydrate and molybdenum tailings as the binder and …
Tailings and Waste Rock
Management of waste rock – Waste rock comes in three general types, which must be managed appropriately:. mineralized waste rock: U 3 O 8 concentration of greater than 0.03%; non-mineralized waste rock: U 3 O 8 concentration less than 0.03%, and is categorized as either "clean" or potentially acid-generating, based on the likelihood of …
Leaching Behavior of Lithium-Rich Beneficiation Tailings in Caustic
The lithium extraction efficiency was calculated according to the lithium content in the tailing and leaching residue according to Eq. 1: ... Table II shows the leachate composition under the optimum leaching conditions. The concentration of enriched lithium was 0.27 g/L in the leachate. ... Lime-gypsum processing of McDermitt clay for …
Sustainability | Free Full-Text | A Study on the Mechanical
To address the challenge of using ultrafine tailings, this work utilized a slag cemented ultrafine tailings paste backfill (SCUPB) composed of slag, Portland cement, …
An extensive review on restoration technologies for mining tailings
Tailing, in context to mining, is defined as the waste or non-economic by-product generated during mining activities, processing of minerals, and other materials that contain small amounts of residual valuable minerals, chemicals, water, and heavy metals (Adiansyah et al. 2015).Studies indicated that the process of mineral exploitation and …
A practice of ultra-fine tailings disposal as filling material in …
Table 2 lists the settling test results of the tailing slurry with the initial concentration of 40%, Fig. 3 and Fig. 4 display the variations of various settlement parameters, settling concentration and settling bulk density over time, respectively. These curve charts can directly present the variation processes and rules of various parameters ...
Recycling of phosphogypsum to prepare gypsum plaster: …
Due to the low hydration degree and high WR of anhydrite, using an activator or reducing WR could further increase the strength of gypsum plaster. As shown in Table 4, the strength of gypsum plaster (1% K 2 SO 4 and 0.21 WR) significantly increased similar to ordinary Portland cement 42.5, and the water resistance was improved. The …
Recycling and Reuse of Mine Tailings: A Review of
This review paper explores available literature on the main technique s. of mining tailing recycling and reuse and discusses leading technologies, including the benefits and. limitations, as well ...
