Theoretical Background of Quarry Wastewater Filtering Through Filters of Coarse-Grained Blasted Overburden Rocks

Makridin, Eugene; Markov, Sergey; Murko, Elena; Lesin, Yuri; Hellmer, Mark

doi:10.1051/e3sconf/202017401056

Cited by 9 publications

(3 citation statements)

References 14 publications

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“…Nitrite can oxidize this iron to the iron (III) state, resulting in a molecule that has no oxygen-carrying capacity. This condition limits the blood’s ability to carry oxygen from the lungs to the rest of the body, giving rise to a situation called methemoglobinemia, which might be described as chemical suffocation ( Jobgen et al, 2007 ; Makridin et al, 2020 ). According to Cemek et al (2007) , it has been ascertained that in severe cases of methemoglobinemia, the deprivation of hemoglobin and oxygen delivery to the brain may lead to intellectual disability.…”

Section: Discussionmentioning

confidence: 99%

Plant biomass as potential economic commodities for agricultural purposes

et al. 2022

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The world’s population is growing continually and is projected to reach nine billion by the year 2050. This growth rate requires increased and economically viable food production and an adequate supply of quality water to sustain life. Increased food production and supply of water require adding fertilizers and possible recycling of wastewater, to address the improvement of soils’ nutritional status and potable water shortages, respectively. The objectives of this work were to determine the nutrients in sewage-impacted wastewater, borehole water, agricultural waste, and commercial fertilizer (control) materials, and their heavy metal content was also carried out to determine their suitability for use. In addition, Moringa seed pods and Morula nutshells were investigated as a bioremedial approach for the removal of toxic metals from aqueous samples. An attempt to regenerate sorbent was made since the saturated sorbents that contain the metal ions are not safe for disposal as they can pollute the environment. Nutrients were analyzed by HPLC, while metals were analyzed using a Varian 220FS Atomic Absorption Spectrometer operated with air/acetylene. Nonedible agricultural materials were found to contain appreciable amounts of plant nutrients such as nitrates (NO3-), nitrites (NO2-), and phosphates (PO43-) as well as metal ions such as magnesium, copper, and zinc, which are beneficial for plant growth. Results obtained from analysis of sewage water effluent showed that heavy metal and nutrient concentrations decreased in the treatment stage. The utilization of Moringa oleifera seed pods for metal removal from wastewater is viable and would reduce costs for waste disposal and can offer alternatives to conventional methods for the removal of unwanted or toxic species from the environment. It showed potential for removing selected metal ions such as Pb, Cd, Cu, Fe, and Zn from polluted water. This organically treated wastewater is environmentally friendly and may be used for applications which do not require potable water, such as irrigating golf courses, lawns, and crops, or for industrial purposes, if proper measures are taken to ensure its quality.

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Section: Discussionmentioning

confidence: 99%

Plant biomass as potential economic commodities for agricultural purposes

et al. 2022

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“…At the same time zeolites themselves are quite a rare and valuable sorbent, which limits their wide application in conditions of intensification of mining operations in the Kemerovo region. Application of overburden rocks, extracted during deposit development, as filtering load will allow to reduce the technogenic load of mining works on ecology of the region and to reduce costs for construction of filtering massifs as the main elements of purification facilities [18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Open pit mine wastewater filtration in the overburden rock debris: case study

et al. 2021

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Discharge of untreated quarry water into natural water reservoirs is unacceptable for environmental reasons. This circumstance is especially relevant for coal mining regions with a high density of mining enterprises. Treatment of quarry waste water at mining enterprises is a necessary process, provided for in the design documentation. It is due to the significant pollution of quarry water by suspended solids, dissolved salts and organic substances. In addition to expensive sorbents (e.g. zeolite), overburden rocks, confined to the mined area of coal deposit, are used for construction of filtering dams. They are used to construct treatment facilities designed for the entire lifetime of the mining enterprise. Thus, their permeability and purification capacity should be maintained for decades. The movement of filtered water in such massifs is subject to the known laws of filtration. Filtering dams should provide both a free movement of water and the required level of its purification. This is achieved by selecting the appropriate geometry of filter dams (their sizes, base slopes) and the choice of overburden capable of providing the required level of purification in a long and qualitative term. The article presents the results of studies of the geometry of the filtering massif and the methodology of selection of overburden used for the construction of filtering dams.

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“…Currently, a significant part of the existing and prospective [4,6,7] Kuzbass open-pit mines treat wastewater in artificial filtering massifs from coal waste [9,11,14,19,21,23]. Given that the trend of growth in the rate of surface coal mining in Kuzbass persists [17,30,[34][35][36][37][38][39], and as a consequence, the volume of water discharged by mines will inevitably increase, further research is needed to improve the environmental safety of mining operations.…”

Section: Introductionmentioning

confidence: 99%

On the need to consider the lithological composition of overburden rocks in the design of waste water treatment plants at open pit mines

Murko¹,

Janočko²,

Makridin³

et al. 2021

E3S Web Conf.

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The issue of wastewater treatment in open-pit mining of mineral deposits is associated with great difficulties. Due to the constant tightening of requirements for the quality of discharged wastewater, its treatment in the sedimentation reservoirs and clarification ponds does not ensure the achievement of MPC values; in addition, these treatment facilities occupy significant areas of land. It should also be noted that the open-pit mines, as a rule, have several water outlets remote from each other, besides changing their location as the development of mining operations proceeds. For example, OJSC "UK "Kuzbassrazrezugol" has more than 30 places of water use, taking into account that the company structure includes 7 open-pit mines. In the article some results of analyses of pit waste water before and after its treatment in artificial filtering massifs at the mining enterprises of Kuzbass are presented. Preliminary dependences of changes in pollutant impurities in quarry water on different composition of coal waste have been established.

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Theoretical Background of Quarry Wastewater Filtering Through Filters of Coarse-Grained Blasted Overburden Rocks

Cited by 9 publications

References 14 publications

Plant biomass as potential economic commodities for agricultural purposes

Plant biomass as potential economic commodities for agricultural purposes

Open pit mine wastewater filtration in the overburden rock debris: case study

On the need to consider the lithological composition of overburden rocks in the design of waste water treatment plants at open pit mines

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