Design of coal mine drainage system

Research from coal fields show that increased production from coal mines resulted in a wider pit. Changes in the water catchment area resulted in changes in the calculation of mine water volume. Excessive mine water volume affects mining activities. Large amounts of water in the pit causes disruption in excavation and loading and hauling activities. Therefore, the design of mine drainage systems is required. The purpose of the study is to analyse statistically the parameters of the mine drainage system, and to design the mine drainage system; including open drain, sump, and settling pond. The research tools used include the calculation of runoff water discharge that requires statistical analysis for rainfall data processing and the determination of catchment area (CA). The open channel dimension and settling pond design is based on the sump volume calculation. The research area has high rainfall clased for the particle to settle is 30.38 minutes. The percsification, solid percent 2.66 % with settling rate 0.0027 m/s; the time requirentage of theoretically suctioned particle is 83 %, and the settling pond maintenance time that has 4 compartments is 15, 16, 19, and 23 days.

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The planning of mine drainage system at PT Perkasa Inakakerta, East Kutai Regency

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/882/1/012056 ◽

2021 ◽

Vol 882 (1) ◽

pp. 012056

Author(s):

M C Dewi ◽

R Anggara ◽

R Hidayatullah ◽

I Nurhakim

Keyword(s):

Mine Drainage ◽

Drainage System ◽

Mining Area ◽

Planning System ◽

Water Volume ◽

Total Water ◽

Runoff Water ◽

Mining Sites ◽

Trapezoidal Shape ◽

Mine Openings

Abstract This research located in Beruang Block Kalimantan. The purpose of the mine drainage planning system is to control runoff water. Therefore, an excellent drainage system is needed without interfering with mining activities such as runoff water pollution, which could cause contamination in the surrounding area and outside the mining sites. Based on the analysis of rainfall data of 2009-2020, the precipitation plan was 341.67 mm/day; the concentration time was 2.37 h, the rain intensity was 41.06 mm/h, and repeated rain periods were 2-years. The extensive catchment area was 1.52 km2 because the runoff entering the sump was 44.38 m3/h. To prevent the water from entering the mining area, an open channel was made around the mine openings, and the water flows naturally into the sump. The water pumped into the settling pond with the pump type Allight HL 150MHD-IT at 50 m/s for 3-days with a single rain, resulting in total water volume of 17,556.5 m3/day. A trapezoidal shape was designed for a sump with dimensions of 3.96 m in length and width at the surface, 1.79 m length and width at the base, and 1.03 depth.

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Assessing Stormwater Nutrient and Heavy Metal Plant Uptake in an Experimental Bioretention Pond

Land ◽

10.3390/land7040150 ◽

2018 ◽

Vol 7 (4) ◽

pp. 150 ◽

Cited By ~ 8

Author(s):

Giampaolo Zanin ◽

Lucia Bortolini ◽

Maurizio Borin

Keyword(s):

Urban Areas ◽

Drainage System ◽

Water Volume ◽

Urban Drainage ◽

Runoff Water ◽

Mentha Aquatica ◽

Growth Performances ◽

Pollutant Reduction ◽

Water Volumes ◽

The University

With the purpose to study a solution based on Sustainable Urban Drainage Systems (SUDS) to reduce and treat stormwater runoff in urban areas, a bioretention pond (BP) was realized in the Agripolis campus of the University of Padova, Italy. The BP collected overflow water volumes of the rainwater drainage system of a 2270 m2 drainage area consisting almost entirely of impervious surfaces. Sixty-six Tech-IA® floating elements, supporting four plants each, were laid on the water surface. Eleven species of herbaceous perennial helophyte plants, with ornamental features, were used and tested. The early growth results of the BP functioning showed that nearly 50% of the total inflow water volume was stored or evapotranspirated, reducing the peak discharge on the urban drainage system. Among plants, Alisma parviflora, Caltha palustris, Iris ‘Black Gamecock’, Lysimachia punctata ‘Alexander’, Oenanthe javanica ‘Flamingo’, Mentha aquatica, Phalaris arundinacea ‘Picta’, and Typha laxmannii had the best survival and growth performances. A. parviflora and M. aquatica appeared interesting also for pollutant reduction in runoff water.

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INFLUENCE OF URBANIZATION ON SYSTEMS OF DRAINAGE AND RUNOFF WATER CLEANING (ON THE EXAMPLE OF SAMARA)

URBAN CONSTRUCTION AND ARCHITECTURE ◽

10.17673/vestnik.2014.04.9 ◽

2014 ◽

Vol 4 (4) ◽

pp. 55-62 ◽

Cited By ~ 1

Author(s):

Alexander K. STRELKOV ◽

Marina A. GRIDNEVA ◽

Tatyana Yu. NABOK ◽

Ella V. DREMINA ◽

Elena E. KONDRINA

Keyword(s):

Water Discharge ◽

Drainage System ◽

Water System ◽

Runoff Water ◽

History Of Development ◽

General Plan ◽

Water Cleaning ◽

Green Areas ◽

Coeffi Cients ◽

History Of

In the article the history of development of runoff water system in Samara is viewed and the main results of realization of general plan of runoff water system are described. Imprevious surfaces in Samara have been changed after runoff water system design, so the calculations of drainage system of runoff water under diff erent fl ow coeffi cients depending on kind of imprevious surfaces and lawns are made. Infl uence of increasing number of imprevious surfaces in city on augmentation of runoff water discharge is shown. As a result the drainage system works in forced, rapidly wearing mode, theres city streets fl ooding, and the cleaning structures arent keeping up. Therefore its necessary to meet requirements of proportion of diff erent green areas in city (as much as 40 %) and in residential area (as much as 25 %).

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KARAKTERISTIK AIR ASAM TAMBANG DI LINGKUNGAN TAMBANG PIT 1 BANGKO BARAT, TANJUNG ENIM SUMATERA SELATAN SEBUAH STUDI KASUS ASAM TAMBANG

Jurnal Teknologi Lingkungan ◽

10.29122/jtl.v9i3.476 ◽

2011 ◽

Vol 9 (3) ◽

Author(s):

Hidir Tresnadi

Keyword(s):

Water Treatment ◽

Coal Seam ◽

Mine Drainage ◽

Drainage System ◽

Passive Treatment ◽

Effluent Water ◽

Settling Pond ◽

Acid Mine ◽

Water Ph ◽

Better Than

In Coal Mine Pit 1, Bangko Barat, Tanjung Enim, South Sumatera mine activity lowered the water pH in the effluent water of the mine. So the Mine Environmet Managemet of PTBA try to raise the pH to meet Kep Men Neg LH No 113 Tahun 2003. This study attempt to characterize the performance of the water treatment,which managed by acid-mine dranage management of the PTBA. Some water samples was taken in the study area, such as the passive treatment in Pit 1 Bangko Barat, rainwater pond near by, lake, mine sump, settling pond, the water treatment of acid mine drainage in the coal stockpile in Bangko Barat, the mine sump of Air Laya Mine and Air Laya Channel. The result of the study showed that in the coal stockpile the pH is around 5, closed to the pH di rainwater pond and Air Laya putih Channel (around 6), output of water treatment in Tambang Air Laya. Meanwhile thepH in the passive treatment, settling pond, mine sump Banko Barat and in Air laya Mine drainage system is 2 - 3. The source of Acid Mine Rocks is coal seam rock interval and overburden of the coal. Meanwhile the performance of water treatment in the lake, Air Laya Putih channel and coal stockpile better than in the passivetreatment, settling pond, mine sump of Air Laya MIne and pit 1 Banko barat. So PTBA Environment division should improve the process capacity of water treatment in the pit of Bangko Barat.

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Kondisi Saluran Drainase Candi Borobudur dan Konsep Penanganannya

Jurnal Konservasi Cagar Budaya ◽

10.33374/jurnalkonservasicagarbudaya.v13i1.203 ◽

2019 ◽

Vol 13 (1) ◽

pp. 25-40

Author(s):

Leliek Agung Haldoko ◽

Wahyudi Wahyudi ◽

Basuki Rachmat ◽

Al Widyo Purwoko

Keyword(s):

Ground Water ◽

Coming Out ◽

Water Discharge ◽

Drainage System ◽

Water Volume ◽

Drainage Channel ◽

The Hill ◽

The Temple ◽

Filter Layer ◽

Sand Sediments

Candi Borobudur merupakan salah satu warisan budaya Indonesia yang juga telah diakui sebagai salah satu warisan budaya dunia. Pada pemugaran kedua (1973-1983) telah dibuat sistem drainase untuk menyalurkan air melalui pipa-pipa yang berada dalam tubuh candi hingga ke bak kontrol dan berakhir pada sumur peresapan. Kondisi sistem drainase Candi Borobudur tentunya akan mengalami penurunan fungsi seiring berjalannya waktu. Hasil kajian menunjukkan saluran filter layer terdapat banyak endapan tanah/pasir yang menghambat aliran air keluarnya air dari dalam bukit Candi Borobudur. Akan tetapi endapan material pada saluran filter layer bukan berasal dari tanah bukit tetapi dari endapan pada saluran drainase bawah lantai yang terbawa masuk. Selain itu sebagian besar filter layer dalam kondisi rusak dan beberapa yang lain belum dapat diidentifikasi kondisinya. Meskipun filter layer dalam kondisi rusak tetapi fungsinya sebagai lapisan penyaring masih bekerja baik. Endapan tanah/pasir pada saluran drainase bawah lantai akan mengganggu kelancaran aliran air pada saluran ini yang dikarenakan posisi dasar saluran drainase menjadi lebih tinggi dan membuat dasar saluran menjadi rata/ kemiringannya berkurang. Pada saluran drainase halaman-lereng, tidak adanya aliran air yang terukur pada saluran drainase Selatan 2 (S2) dan Timur (T) mengindikasikan adanya permasalahan pada kedua saluran drainase tersebut yaitu terjadinya kebocoran saluran. Untuk mengoptimalkan monitoring geohidrologi dilakukan perubahan metode monitoring filter layer dari yang sebelumnya dengan mengukur debit dan kekeruhan air yang keluar dari bukit dan melewati filter layer, menjadi monitoring menggunakan videoscope untuk mengamati gambaran visual filter layer. Selain itu menghentikan monitoring muka air tanah melalui pipa inklinometer karena sebagian besar pipa inklinometer memiliki ujung bawah pipa tertutup sehingga data yang didapatkan tidak valid. Pada akhirnya dari data-data yang didapatkan, kecil kemungkinan airtanah bukit Candi Borobudur akan meluap dan menekan struktur Candi Borobudur. Borobudur Temple is one of Indonesia’s cultural heritage site that has been enlisted as World Heritage. In its second restoration (1973-1983), new drainage system was installed to flow water using concrete pipes inside the temple structure to control tank, to be directed to infiltration well. Over time, the efficiency of this system is decreasing. The study shows that filter layer channels contain much soil/sand sediments that clog the water running outside from the temple structure. The sediments come not from hill soil, but was carried to the channel from under the temple floor. Some filter layers are confirmed to be damaged, while others are still unidentified. However, the damaged filter layers still function well. The soil/sand sediments on drainage channel under the floor would disturb the flow of the water because the elevation for water to be able to run off would be compromised. In the courtyard-slope drainage channel, no water volume can be calculated in channel South 2 (S2) and East (T); indicating that there is a leakage in the channel. To optimize the geohydrology monitoring in Borobudur Temple, a change in monitoring methodology is needed to evaluate the effectiveness of filter layers from assessing the water discharge and turbidity of water coming out from the hill to controlling the condition of filter layer channels using videoscope through visual imagery. Measurement of ground water level using inclinometer pipe is not valid because most of the pipes are closed off at their far end. From the data gathered, it is less possible for the ground water in the hill of Borobudur Temple to overflow and push the structure of Borobudur Temple.

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Geospatial Assessment of the State of the Samara River Floodplain in the Area of Coal Mining in Western Donbas

Agrology ◽

10.32819/021012 ◽

2021 ◽

Vol 4 (2) ◽

pp. 93-97

Author(s):

М М. Kharytonov ◽

V. T. Pashova ◽

S. M. Lemyshko ◽

G. P. Yevgrashkina ◽

O. V. Titarenko

Keyword(s):

Mine Water ◽

Mine Drainage ◽

Water Discharge ◽

Monitoring Network ◽

Satellite System ◽

The State ◽

Self Healing ◽

Mine Waters ◽

River Floodplain ◽

Artificial Ponds

The discharge of highly mineralized mine waters of the Western Donbass negativelyaffected the Samara Bay area, which is of great fishery importance. Mine water storage pondswere built in deep erosional cuts in the territories of mine fields in the gullies of Kosminnaya,Taranova, Glinyana and Svidovok. The screening of the bottoms was not performed in any pond.The soils that make up the bottom are not aquicludes, which contributes to intensive filtration ofmine waters and pollution of aquifers. Artificial ponds built without waterproofing of bottoms,rock dumps, mine water discharge routes and other sources of pollution are actively involved inthe zone of influence of mine drainage and worsen the quality of drinking water, the reserves ofwhich in the Western Donbass are limited. There is flooding and flooding by groundwater, as wellas increasing (compared to the period before the violations) areas of land temporarily floodedduring floods on rivers in the valleys of the rivers Samara, Velyka Ternivka and such large beamsas Svydovok, Taranova, Kosminna due to subsidence of the earth’s surface. Differences in theconditions of formation of mine waters determine the nature and degree of their impact on theenvironment. The main difficulties making complicated accurate comparison between calculatedand field data in Samara river floodplain are following: a) changes in parameters of mining andpumping rates of water used for local needs; b) hydrological changes including formation ofnew channels, bed deformation; c) transformation of the monitoring network; d) increasing leakagethrough the clayey bottom of the ponds. The main objective is to provide a comprehensivegeo-ecological assessment of the state of the Samara river floodplain in the area of coal miningin the Western Donbass. Multispectral imagery of Sentinel-2 satellite system was used for remoteassessment within the study area. Geomorphologic assessment of the studied area was performedusing Sentinel-1 satellite radar interferometry. Flooding of the territory is observed due to minedrainage and subsidence of the earth’s surface. The risk of salinization of soils under the conditionsof water use from the beam “Glynyana” and from the Samara river is estimated as insignificant,from the beam “Kosminna” ‒ average. The SAR value of mine waters in “Taranova” and“Svydovok” beams corresponds to a high level of salinity. Samara river waters belong to the 3rdclass and are characterized as highly mineralized, sometimes unsuitable for irrigation. Intensivenatural overgrowth of the mine dumps that have passed the stage of mining reclamation has beenrecorded near the “Heroyiv of Space”, “Pavlogradska” and “Samarska” mines. The rate of selfgrowthof the land cover around the mine “Ternovska” and “Blagodatna” is estimated as average.The self-healing levels of the “Ternovska” and “Blagodatna West Donbasska” mines are ratedfrom low to high. The greatest risk of salinization of soils under conditions of use of water forirrigation is possible at a fence from artificial ponds located in Taranov’s and Svidovok’s beams.The conturs of “Verbsky”, “Ternivsky”, “Bogdanovsky” and “Boguslavskiy” piscicultural pondscan be corrected with map of remote sensing of Samara river floodplain geomorphology. The dataobtained can be useful during development of econetwork of promising ecological corridors inthe floodplain part of the Samara River as well..

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Design of Drainage System Coal Mine at PT. Tebo Agung International Site Project, Semambu Village, Sumay District, Tebo Regency, Jambi

Journal of Earth and Marine Technology (JEMT) ◽

10.31284/j.jemt.2021.v1i2.1744 ◽

2021 ◽

Vol 1 (2) ◽

pp. 1-7

Author(s):

Fairus Atika Redanto Putri ◽

Muhammad Reynaldi

Keyword(s):

Water Discharge ◽

Drainage System ◽

Daily Rainfall ◽

Mining Area ◽

Open Pit ◽

Open Pit Mining ◽

Open Drainage ◽

Runoff Water ◽

Maximum Rainfall ◽

Research Site

Tebo Agung Internasional Ltd is one of the companies in coal mining that employs the open-pit mining method. This sort of method will create a large basin that can accumulate water inside the mining pit. The drainage system is applied at the Pit-1 Site Semambu is mine-dewatering carried out by draining the water into the sump so that it can be pumped out of the mining area and prevent the runoff from coming inside through an open drainage system (ditch). The result of data analysis demonstrated that referring to the daily rainfall in 2010 – 2019 through the distribution of Log Person Type III, the maximum rainfall being planned was 508.019 mm/day within the return period of 5 years. The intensity of rainfall at the research site was 82.5 mm/hour having a rain duration averagely of 3.1 hours/day. Pit-1 Site Semambu had a catchment area around 469,317.15 m2 and a water discharge totally 61,238.81 m3/day derived from rainwater discharge of 48,530.48 m3/day and runoff water discharge 12,708.33 m3/day, whereas the capacity of the temporary accommodating pond (Sump) was 39,539.55 m3. The pump at the research site could not be operated anymore (broken). Accordingly, the recommendation that can be given to the company is changing the broken pumps with 4 units of multi fall 420 pumps having operating speed 1,300 rpm and actual discharge yielded by the pump 871.64 m3/hour. The pump worked for 14 hours/day and the total water discharge that could be produced was 12,202.96 m3/day. Open channel (ditch) at Pit-1 Site Semambu was the only one with accommodated discharge 1.27 m3/second. Thus, the recommendation that could be delivered to optimally prevent the runoff water coming into the mining area is by adding 2 ditches having the capacities of 0.90 m3/second and 0.75 m3/second which have been adjusted to the planned water discharge.

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KAJIAN PENANGGULANGAN AIR ASAM TAMBANG PADA SALAH SATU PERUSAHAAN PEMEGANG IJIN USAHA PERTAMBANGAN DI DESA LEMO, KABUPATEN BARITO UTARA, KALIMANTAN TENGAH

EnviroScienteae ◽

10.20527/es.v12i1.1100 ◽

2016 ◽

Vol 12 (1) ◽

pp. 50

Author(s):

Susan Nadya Irawan ◽

Idiannor Mahyudin ◽

Fakhrur Razie ◽

Susilawati Susilawati

Keyword(s):

Acid Mine Drainage ◽

Mine Water ◽

Mine Drainage ◽

Research Area ◽

Low Ph ◽

Test Results ◽

Acidic Water ◽

Acid Mine Water ◽

Acid Mine ◽

Dry Cover

This study aims to know the factors that cause the formation of Acid Mine Water, to analyze the methods of prevention of acid mine drainage has been running effectively, to analyze how to prevent the formation of acid mine water at the research area. This research was conducted atLemovillage,North Barito Regency. These results indicate the analysis of water quality in the company with an indication acidic low pH values and high metal values. It is supported by soil pH test results showed low pH, especially on the layer in direct contact or close to coal. Sources of acid mine drainage at the company are from the oxidation of water and oxygen on the wall of rock at pit, water from the dumping area, water flowing from the temporary stockpile into the settling pond 2. From these, we can conclude the results. Recommendations prevention of acid mine drainage can be done by moving the location of the temporary stockpile in accordance with, more effective functioning of sump, controlling the movement of acidic water that has formed, accommodate and neutralize the acidic water that has formed, forming a layer of dry cover, separating the flow of water is not acidic and acidic

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