Highlights Adsorption of polyacrylamide flocculants onto the iron ore tailings is established. Effects of pH and flocculant doses on zeta potential of the tailings were studied. Adsorption data was validated with Langmuir and Freundlich isotherm models. Flocculation and settling studies were carried out to optimize dewatering …
Flocculants play an important role in the solid-liquid separation of tailings slurry, and its dosage directly impacts on the dewatering efficiency of tailings. Herein, the influence of ultrasonication on flocculant dosage in dehydration process of unclassified tailings was studied. The effects of flocculant dosage on initial settling rate (ISR), …
The current research work initially presented the impact of flocculant in the circulating water on the dewatering of Gol-e-Gohar iron ore. To this end, the role of four key parameters including solid content, pH, flocculant type, and its dosages were studied on Gol-e-Gohar iron ore thickener. The following results are the main highlights: •
Screen dewatering of particulate systems in size range between 150 μm and 1000 μm, from iron ore, was studied in an industrial environment. The oscillating …
Optimizing the microwave parameters adopted in microwave-assisted mechanical mining is of great significance to improving the efficiency of the deep resource development. The effects of varying the type of microwave antenna, microwave power, and working distance on the reflection coefficient and heating characteristics of Sishanling …
Therefore, dewatering after 1250 kPa filtration has no further adhesion-increasing effect. For the iron ore tailings, 5 kN·m −2 corresponds approximately to 25 cm cake thickness by assuming a residual moisture of 20 w-%, ρ Solid of 3050 kg·m −3, ρ Fluid of 1000 kg·m −3, a full saturated cake (S = 1) and no sealing edge.
In this study, the dewatering of an iron ore tailing by applying different voltages by the electroosmosis method was investigated in the laboratory environment. By discharging the water of the iron ore tailings by the electroosmosis method, the solid content was increased from 43.01% to 87.63%. Thus, it has been observed that there …
to fulfill the detachment condition. Dewatering of the cakes formed at higher filtration. pressure further increases adhesion for the PP cloth at 250 kPa and 1250 kPa, the NY cloth. at 250 kPa ...
At this stage, the mineral is mixed with water and wet milled to an optimal granulometry to achieve flotation. The flotation process yields two products, a concentrate and tail streams, that are sent to dewatering systems for water recovery. These systems usually include thickeners, hydrocyclones, and filters.
Dewatering is critical to oily cold rolling mill (CRM) sludge treatment. Therefore, finding an efficient, energy-saving, and applicable dewatering technology for oily CRM sludge is still urgent. This study investigated the performance of quicklime as a conditioning agent for oily CRM sludge conditioning and dewatering. The interactive …
Introduction. Nowadays, the most challenging issue in the iron ore mining industry is tailings management and water recovery. Due to a number of problems such as water scarcity for processing, space limitation for tailings disposal and the environment problems, dewatering of tailings in the iron beneficiation plant is an important issue …
High water usage is necessary while ore passes through the many stages of a mineral processing plant. However, a dewatering system filters the final ore pulp …
Performance evaluation of Fe-based water treatment sludge for dewatering of iron ore tailings slurry using coagulation-flocculation process: Optimization through response surface methodology
choice for high-capacity concentrate dewatering with the lowest operating costs. In one case, this meant increasing throughput to more than 500 t/h per machine, with half the …
The purpose of the dewatering system is to increase the concentration of the solid discharge removed from the pulp in order to increase the amount of water recovered. Owing to several factors, efforts are being made to increase the efficiency of the recycling of 'used' water (Rao and Finch, 1989): (1) mineral processing plants can consume a ...
Section snippets Materials. Iron ore fines less than 6 mm were collected and divided into many equal fractions with proper sampling techniques.With each fraction, the laboratory experiments were performed with the surfactants. A 0.5 mm sieve was used for the tests as the dewatering screen at the processing plant is of the same configuration.. …
Introduction to Mineral Processing. Mineral processing is a field that contends with procedures and technologies used for separating valuable minerals from gangue or waste rock. It is a process that converts the extracted ore through mining activity into a more concentrated material, which serves as an input for the extractive metallurgy.
Abstract. This paper is concerned with studying the dewatering behavior of three samples of iron ore products. The objective is to improve the industrial filtration performance by taking into ...
In this study, the dewatering of an iron ore tailing by applying different voltages by the electroosmosis method was investigated in the laboratory environment. …
This work studies the mechanism and optimization methods of the filter press dehydration process to better improve the efficiency of the concentrate filter press dehydration operation. Machine ...
This paper is intended to explore how changing the frequency of industrial screens processing the dewatering of an iron ore bulk influences the final moisture content. Screen dewatering of particulate systems in size range between 150 μm and 1000 μm, from iron ore, was studied in an industrial environment. The oscillating dewatering screen
2.3. Zero-valent scrap iron recycling experiments. As modified by the previously used cycle instrument (Fan et al., 2023; Liang et al., 2020a), the sludge continuous conditioning reactor within the ZVSI + SPC process was established to manifest its practicability and steadfastness in enhancing sludge dewatering.This system included a sludge …
Jan 2017. 371-379. R Guang. S Longo. Guang, R., Longo, S., 2017, Application of in-line polymer addition for tailings disposal-learning and challenges part II, in A Wu, RJ Jewell (eds), in ...
The role of chemical reagents to reduce moisture in iron ore fines is explored in the present work which includes ionic and non-ionic surfactants. The washing of iron ore in mineral processing plants result in moisture of about 11–14% in the fines and about 4% in the sized ore. The moisture level goes up to 16% in the fines during the monsoon ...
Request PDF | Investigation on the effects of chemical pretreatment on the iron ore tailing dewatering | Water plays a crucial role in mineral beneficiation, and thus dewatering the tailings from ...
Therefore, dewatering after 1250 kPa filtration has no further adhesion-increasing effect. For the iron ore tailings, 5 kN·m −2 corresponds approximately to 25 …
ABSTRACT The dewatering of iron ore is a high tonnage application in general requiring high energy input. Choosing a ceramic capillary action disc filter can offer decreased specific energy consumption in addition to …
Iron ore tailings (IOTs) are an important solid waste in the mining industry, which can pollute the environment and endanger human health. However, the disposal and high value-added utilization of iron tailings have always been a challenge. Notably, superconducting high-gradient magnetic separation (S-HGMS) technology is a …
This paper reports an experimental investigation on the effect of anionic, cationic and non-ionic surfactant on the dewatering behaviour of iron ore fines (-6 mm) and also plant trials with the ...
Using Fe-based WTS as a sustainable coagulant for iron ore tailings dewatering. • Evaluating FCS performance in tailings slurry dewatering through OFAT …
In this study, optimization of dewatering process in Zareshouran gold processing plant is carried out using hydrocyclone containing circuit. For this purpose, 12 experiments using 4 spigots with 2 ...
Much of this seems to be "silly" iron ore particles, as generally getting 50% slurry with just clay, without a flocculants and without a paste or deep cone thickener, would be quite incredible! It would be interesting to know the true "clay" weight fraction – i.e. the fraction that actually needs significant treatment.
2014. TLDR. This work presents an intelligent control based on an expert system applied to an industrial 125 m diameter thickener, processing 13000 m3/h of concentrate containing a 27 % of solids, resulting in a reduction in flocculants consumption and a more stable operation, with few emergency conditions. Expand.
Concentrate dewatering: higher throughput, lower costs. Dewatering iron ore concentrates is a crucial step in enhancing their handling and transportation by removing …
1. Introduction. Zinc ore is a non-renewable resource that is becoming increasingly scarce as people continue to develop and use it. As a result, low-grade zinc ore and zinc-containing waste are receiving more attention, and researchers are studying the extraction of valuable metals from them [1], [2].Iron slag is a product obtained from …
These dewatering screens will soon be sent to domestic customer sites for use in the screening process of iron ore. GN linear motion dewatering vibrating screens play a crucial role in iron ore applications. Iron ore screening is an important part of the iron ore processing process, and the linear dewatering screen, as an efficient and …
This necessitates optimization of dewatering systems particularly in arid and semi-arid mining regions. In this paper the bench and full-scale flocculation behavior of …
Concentrate dewatering: higher throughput, lower costs. Dewatering iron ore concentrates is a crucial step in enhancing their handling and transportation by removing excess water. The selection of a suitable dewatering method depends on various factors, including moisture content, particle size distribution, and downstream process …
Performance evaluation of Fe-based water treatment sludge for dewatering of iron ore tailings slurry using coagulation-flocculation process: Optimization through response surface methodology. S. Yaghoobian M. Hasani Zonoozi M. Saeedi
Closing down of iron ore mines due to environmental constraints spurred the captive iron ore washing plants to workon a custom plant mode and also recover the values from their slimy tails. This paper enumerates the difficulties faced by a captive iron ore fine washing plant [treating iron ore fines assaying Fe∼58% yielding sands assaying Fe ...
