Application of Integrated Forward and Reverse Osmosis for Coal Mine …
Various methods have been proposed for the coal mine water treatment: application of nanofiltration as a pretreatment before thermal methods [8], integrated reverse osmosisforward osmosis system ...
Application of integrated forward and reverse osmosis for coal mine …
The combination of FO with RO provided a better performance than individual FO or RO in treating coal mine wastewater. The FO unit served as an effective pre-treatment system prior to RO and the integrated FO–RO systems has a strong potential to successfully eliminate conventional pre-treatment processes for RO. ...
Valorization of coal mine effluents — Challenges and …
After initial treatment in the ultrafiltration and decarbonization units (excluded from this analysis) of the pilot plant, the coal-mine effluent containing ions of Na +, Cl −, Ca 2+, Mg 2+, and SO 4 −2 was sent to the proposed treatment plant, which consisted of two phases (see Fig. 1): pretreatment and concentration [15].The first phase is used to …
Identification of the microbial community composition and structure …
In the present study, the sludges from five coal-mine wastewater treatment plants were collected and the microbial communities were analyzed by Illumina high-throughput sequencing. The diversities of these sludges were lower than that of the municipal wastewater treatment systems. The most abundant phylum was Proteobacteria …
Poland: Pilot recovers salt and clean water from coal mine wastewater
The big challenge now is to find companies willing to invest in a full scale wastewater treatment plant. ... it is confirmed that nanofiltration can split the coal mine wastewater into a sodium-chloride rich stream suitable for further concentration and the magnesium-rich stream suitable for magnesium hydroxide recovery. The projected …
Mining wastewater treatment technologies and resource …
Coal mining: Damaged >10,000 km 2 of natural vegetation and agricultural land Consumed >2315 million m 3 of surface water and groundwater: China, Mongolia ...
Oman to invest $7bn on wastewater treatment
The SCP report stated: "Through the National Strategy for the Use of Tertiary-treated Wastewater 2040, Oman seeks to expand the …
Coal-based adsorbents for water and wastewater treatment
1. Introduction. Coal has the longest history of use amongst the fossil fuels, with its use as a fuel dating back to 3000 BC in China and Wales [1], and undoubtedly, it still remains the largest and cheapest source of solid fuel across the globe [2]; and there is an estimated 861 billion tonnes of coal reserves worldwide [3].Broadly speaking, coal is a …
Development and Status of the Treatment Technology for Acid Mine
Acid mine drainage (AMD) is difficult to treat due to its physicochemical characteristics, such as high pH and high heavy metal concentrations, so it causes great harm to the environment and human health. If acid mine drainage is discharged arbitrarily without treatment, it will lead to a series of environmental problems and cause long …
UV-initiated polymerization of cationic organic flocculants …
1. Introduction. Flocculation is the most effective solution for clarification and sedimentation of wastewater [1].The purification of coal mine wastewater is a severe problem, and coal preparation plant sewage is the main source of coal mine wastewater, which has complex composition including containing large quantities of fine size coal …
Review of the recent advances in the prevention, treatment, …
Hence, it is important to recover AMD wastewater to reduce environmental pollution and cover the costs associated with post-treatment in coal mining production. …
Coal Mine Water Drainage: The Current Status and Challenges
Any form of mining is a potential threat to the environment. The extent of environmental degradation depends on the status of mine (working/abandoned), type of deposit, mining and processing methods and the geo-atmospheric conditions. Coal mining has huge impacts to local water resources, both surface and ground water. Surface …
Mine Water Treatment Plants
Nitrate Removal from Coal Mine Water, China ... Removal for Cobalt Mine, DRC. Removal and concentration of uranium from a 20 MLD cobalt rich liquor in the DRC. Gold Mine Wastewater Treatment Plant, Australia ... Antimony Processing Plant Water Recycling, Oman. Treating multiple waste streams using the 0.5MLD plant, producing industrial …
The new mining
The ZERO BRINE project is seeking to change this by recovering water, salts, magnesium and other minerals for reuse from coal mine wastewater, effectively 'closing-the-loop' on industrial wastewater from coal mining. On 8 October, press, government officials, and industrial and environmental experts visited the Bolesław …
Mining wastewater treatment technologies and resource …
Fig. 1 summarises the effects of mining wastewater on agriculture, marine life, soil, and waterbodies. These studies also show how these mining activities are affecting food security and human health. Supplementary Table S1 details the effects of metal ions which, are usually found in mining wastewater, on aquatic animals, humans, …
Journal of Environmental Engineering and Science
Oman, being a semi-arid country, is in great need for extensive reuse practices of treated wastewater effluents. However, these practices need to be …
Review on treatment technology of salt wastewater in coal …
Section snippets Overview of source. The salt-containing wastewater of coal chemical industry mainly comes from raw water, raw coal, wastewater produced in the production process, and agents added in the treatment process (acid-base neutralization, flocculation, scale inhibition, fungicide, etc.) [1].
Processes | Free Full-Text | Synthesis of the Hydrophobic …
In this study, a new type of hydrophobic cationic polyacrylamide P (AM-DMC-DABC) (PADD) was synthesized by ultrasonic (US)-initiated polymerization, which is used for the separation and removal of coal mine wastewater. The acrylamide (AM), methacryloyloxyethyl trimethyl ammonium chloride (DMC) and acryloyloxyethyl …
Cause analysis and treatment of acid wastewater pollution …
In this paper, the acid wastewater pollution caused by the closed pit of xiayuanqiaotou Coal Mine is taken as an example. Through hydrogeological survey and field inspection, the geological and hydrogeological conditions of the study area are understood, and the cause and discharge of acid wastewater pollution in the mining area are analyzed. The …
Treatment of saline wastewater for zero discharge at the Debiensko coal
@misc{etde_541497, title = {Treatment of saline wastewater for zero discharge at the Debiensko coal mines in Poland} author = {Ericsson, B, and Hallmans, B} abstractNote = {The paper describes the plant and process built for desalination of drainage water from the coal mines at Debiensko and Budryke in the vicinity of Katowice, Poland …
Utilization of fly ash for treatment of coal mines wastewater
Acid mine drainage (AMD) in addition to being highly acidic [1] often contains high concentrations of heavy metals such as Fe, Mn, Al and anions like SO 4 2-in addition to elements like Zn, Co, Pb, Cr, Cu, in trace concentrations. The current legislation in South Africa requires the mines to carry out neutralization and clarification of all AMDs before …
Constructed wetland as a green remediation technology for the treatment
The wastewater from underground coal gasification (UCG) process has extremely complex composition and high concentrations of toxic and refractory compounds including phenolics, aliphatic and aromatic hydrocarbons, ammonia, cyanides, hazardous metals and metalloids. So, the development of biological processes for treating UCG …
Coal fly ash: an emerging material for water remediation
Coal fly ash (CFA) is a byproduct of thermal power plant and collected from flue gases by separator. Composition of CFA depends on the type of coal used and it has both crystalline and amorphous character. It is considered to be an environmental pollutant and used in number of areas. CFA is a useful material and widely used in cement production and as …
Hydrodynamic cavitation and advanced oxidation for …
In this stride, an experimental study pilot scale study will be conducted in a setup, and The study will investigate the possibility of including various hydrodynamic cavitation and …
Solutions for coal plant wastewater treatment
The CAPEX and OPEX of CGE, MED and MVC are compared for treatment of contaminated FGD wastewater from coal power plants in China for a feed water of 12,500 ppm and a fresh water recovery of 95 per cent (250,000 ppm reject stream) (see Table 1).
Valorization of coal mine effluents — Challenges and …
After initial treatment in the ultrafiltration and decarbonization units (excluded from this analysis) of the pilot plant, the coal-mine effluent containing ions of Na +, Cl −, …
Selenium Removal from Industrial Wastewater | Water …
A critical issue at coal-fired power plants — those remaining and many of those that have shut down — is how to remove selenium from wet scrubber effluent and ash pond wastewater. However, industries such as mining, oil refining, and others face similar difficulties where wastewaters from material extraction or process treatments contain ...
Research on Coal Mine Environmental Pollution and …
3. Key treatment measures in coal mine wastewater treatment processes 3.1 Pre-settlement tank aeration technology The chemical composition of coal mine wastewater is very complex, and organic matter is one of them, which can be re-moved using various methods, the most common of which is aeration and oxidation. Coal mine effluent …
Pilot study on ceramic flat membrane bioreactor in treatment of coal
2.2. Introduction of project. Ceramic flat membrane bioreactors achieved satisfactory results in laboratory conditions for the treatment of coal chemical wastewater (Wan et al., 2023).To further test the performance and application potential of the ceramic flat membrane bioreactor in practical context, a pilot test was conducted in a certain …
An integrated membrane- and thermal-based system for coal …
The inflow of hypersaline wastewater to treatment plants has increased considerably, accounting for up to 5% of the wastewater treatment flow worldwide (Gao et al., 2019). Hypersaline effluent is discharged from various industries, such as petrochemical, natural gas extraction, pharmaceuticals, coal, and chemical (Ali et al., …