Design of coal mine drainage system

Abstract

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.

Implementation of swampy forest system for acid mine drainage treatment to meet threshold value

“…Reusing palm oil waste materials reduces the use of more expensive chemicals. Wastewater quality is improved by providing organic matter at a lower cost and in a more environmentally friendly manner; organic matter increases the absorption, precipitation, and binding of heavy metals, such as Fe and Mn [12][13] [14][15] [16].…”

Optimasi Gis: Pemetaan Akumulasi Air Pada Low Wall Pit A, Pt Bukit Asam, Tbk.

“…Menurut Silwamba dan Chileshe (2015), air pada area tambang memberikan manfaat antara lain menekan debu yang terbentuk akibat proses penggalian, pendukung proses ekskavasi material overburden maupun batubara, serta membantu proses pemboran [1]. Namun di sisi lain, air yang terakumulasi membentuk genangan pada area tambang dapat membahayakan proses penambangan khususnya menjadi pemicu terjadinya longsor pada area lereng bukaan tambang [2]; [3]. Akumulasi air merupakan kumpulan air yang terjebak pada suatu cekungan yang terbentuk karena perbedaan elevasi maupun kedalaman (Gambar 1).…”

Investigating The Effects of Rainy Season On Open Cast Mining Operation: The Case of Wescoal Khanyisa Colliery

“…Rainfall is a natural phenomenon which is impossible to prevent and therefore causes water to settle at the mine pit bottom. According to Bargawa et al (2019), excessive mine water from rainfall and mud has the potential to create mud accumulation. A combination of the wet mining area, water accumulation, and mud sediments result in a major problem which complicates mining activities in coal mines leading to failure in reaching production targets as shown in Fig.…”