Coal-washing wastewater is the residual produced by the coal industry, which may represent a high risk of serious environmental problems worldwide. However, prevailing coal-washing treatment processes are hardly ideal for achieving the goal of solid–liquid separation due to the wastewater's extremely stable physicochemical …
Coal mines discharge low-pH acid mine drainage (AMD), which contains a variety of heavy metals and sulfates that are extremely polluting and corrosive, posing a …
Gorbi Mine belonging to M/S Northern Coalfields Limited (A Subsidiary of Coal India Limited) has been abandoned and mine void is filled with water acidic, which is due to presence of pyrite in the ...
The acid mine wastewater produced in the mining of sulfur-containing coal mines contains extremely corrosive SO 4 2− ions and toxic heavy metal ions. Directly discharging the wastewater without strict treatment can harm the ecological environment and pose a direct threat to human life.
To meet the practical needs of classified collection, graded treatment, and quality recycling of coal chemical wastewater, and in accordance with the standardization requirements of wastewater resource utilization, the Standardization Administration of China released the national standard GB/T 42,866-2023 ″Guidelines for Coal Chemical …
Several authors have investigated the capacity of fly ash to improve the quality of leachates generated by coal refuse [14], by oxidation of a sulphide-rich mining waste [15], [16] and in passive treatment of acid mine drainage [17]. These authors observed that generation of acidic leachates was prevented and inorganic contaminants ...
Treatment Wetlands in Mexico for Control of Wastewater Contaminants: A Review of Experiences during the Last Twenty-Two Years. by. José Luis Marín-Muñiz. 1, Luis Carlos Sandoval Herazo. 2, María …
Zero Liquid Discharge (ZLD) and Resource Recovery for Coal Chemical Wastewater Treatment . CHN Energy Ningxia Coal Group - the industry leader in clean coal technology in China - needed to achieve zero liquid discharge (ZLD) for its coal chemical wastewater treatment facility at the Ningdong Energy and Chemical Industry …
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 …
DOI: 10.1016/j.colsurfa.2024.133390 Corpus ID: 267505474; UV-initiated polymerization of cationic organic flocculants and its application and mechanism in coal mine wastewater treatment
1. Introduction. Coal is one of the main foundations of Chinese economic development, and China is now the largest coal production and consumption country in the world (Liu and Liu 2010).The large production of coal mining wastes, nearly 15% of coal production, has been a major threat to economy and environment (Bian et al. …
@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 …
In order to solve the problem of mine water treatment in the production process of coal mine enterprises, the source and characteristics of mine water are introduced, and the zero discharge technology of mine water is studied and applied in engineering, the zero discharge technology of mine water includes three stages: …
Mexico; Perú ; North America. Canada ... nickel and copper mining, to uranium, coal, or other minerals. Water solutions have successfully helped mining companies across the globe to refine minerals, ... Veolia provided a mine wastewater treatment plant for a 2 000-man mining camp through its Namibian subsidiary, Aqua Services & Engineering. ...
exploitation of hard coal mines leads to the generation of vast amounts of salty wastewater effluents (brines) which have severe environmental impacts. Currently, there are 18 hard coal mines in Poland, owned and operated by 5 coal mine companies, while several abandoned mines need still to be pumped to avoid flooding risks.
Facilities with existing magnesium production, underground coal mines, industrial wastewater treatment, and industrial waste landfills must begin monitoring GHG emissions on January 1, 2011 in accordance with the methods specified in 40 CFR part 98, subparts T, FF, II, and TT. Facilities must report the GHG emissions and associated …
Wastewater treatment has become a global challenge with wastewater treatment cost fast increasing. Industrial processes such as downstream processes, wastewater treatment, and several fermentation ...
Some of the steps taken by legal mining industries to mitigate environmental pollution include the treatment of mine sludge and mining wastewater, reusing treated mining wastewater for recovery purposes, and following discharge limit guidelines.
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 …
Due to stringent local regulations and adverse environmental impacts, Vietnamese coal mining industries are under pressure to reuse the large volume of wastewater they produce. To this end, the aim of this study was to add microfiltration (MF) membranes after the conventional Vietnamese coalmine wastewater treatment …
System treatment capacity: 3,000 m³/d. Temperature range: 30-35°C . Water Solutions. Overview. CHN Energy Ningxia Coal Group, the industry leader of clean coal technology in China, has . constructed a coal mine water and coal chemical wastewater treatment and …
The pollutants in wastewater are trapped by the filter material layer and degraded by the biofilm attached to the filter material. BAF is widely used in the depth treatment section of engineering. More than 60% of the coal chemical wastewater treatment projects in China have adopted the BAF as a core process in the depth …
• Treatment of wastewater; • Wastewater recycle/reuse; • Final disposal of wastewater. It should be noted that the most of the data presented in this article are related to coal mining industries, which are located in and around Illawarra region of Australia. 2. Wastewater Sources and Characteristics In any waste management application ...
The application of such a coagulant can be easily adopted in mine effluent treatment plants, thereby reducing mine wastewater pollution issues. This new application of coal fly ash can be extended ...
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, …
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 …
Global research progress on mining wastewater treatment: a bibliometric analysis. Aqib Zahoor a, Guozhu Mao a, Xinming Jia a, Xiao Xiao b and Jian Lin Chen * cde a School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China b Department of Infrastructure Engineering, Faculty of Engineering and Information …
DOI: 10.1016/0011-9164(96)00065-3 Corpus ID: 97869805; Treatment of saline wastewater for zero discharge at the Debiensko coal mines in Poland @article{Ericsson1996TreatmentOS, title={Treatment of saline wastewater for zero discharge at the Debiensko coal mines in Poland}, author={Bernt Ericsson and Bengt …
Coal mines discharge low-pH acid mine drainage (AMD), which contains a variety of heavy metals and sulfates that are extremely polluting and corrosive, posing a continuous threat to the ecological environment and human health. Hence, the effective management of AMD has become a global concern. By reviewing the formation …
