p–ISSN: 2723 - 6609 e-ISSN: 2745-5254

Vol. 5, No. 11 November 2024 http://jist.publikasiindonesia.id/

Jurnal Indonesia Sosial Teknologi, Vol. 5, No. 11, November 2024 4804

Increase The Percentage of Coal Conservation Deposited in

ROM Drainage Areas

Aifah

, Ryan Afif Hendrawan

, Fransiskus Bimantoro Agung

Jepri Victor

PT Antareja Mahada Makmur, Jobsite Borneo Indobara Hati'if,

Kalimantan Selatan, Indonesia

Email:

[email protected]

, [email protected]

*Correspondence

ABSTRACT

Keywords: Coal

conservation; fine coal

management; environmental

pollution; ROM drainage

area; root cause analysis;

Fishbone diagram.

The research aims to increase the conservation percentage of

trapped coal in the ROM A1 drainage area from February to June

2024 by improving fine coal management and adding value to the

conservation of PJP. This study also seeks to reduce penalties

from fine coal blending into sellable products and minimize

environmental pollution in the ROM A1 area. The study employs

a descriptive method, focusing on implementing coal conservation

in drainage areas by determining the scope of each conservation

object. Root cause analysis using a Fishbone diagram was used to

identify key improvement strategies for increasing coal

conservation percentages. Initial observations in the ROM A1

drainage area revealed 6,829 tons of unpreserved fine coal,

primarily due to rainwater runoff. The results showed that with

proper implementation of conservation techniques, including the

installation of fine coal traps and the centralization of fine coal in

collection points, the conservation rate improved from 0% to 62%

by April 2024. In tangible terms, 83 tons of fine coal, worth IDR

26,434,928, were saved, contributing to both environmental

conservation efforts and economic benefits for the company. This

study highlights the importance of continuous coal conservation

efforts, especially in mining operations where environmental and

financial impacts can be significant.

Introduction

Mineral and coal conservation is an effort to optimize the management, utilization,

and data collection of mineral and coal resources in a measurable, efficient, responsible,

and sustainable manner. Mineral and coal conservation is one of the aspects that must be

carried out in accordance with the Mineral and Mineral Law Attachment VII of the

Ministry of Energy and Mineral Resources No. 1827 K/30/MEM/2018 to realize the

principles of good mining techniques (Good Mining Practice). Planning for the optimal

implementation of mineral and mineral conservation is carried out by first determining

the scope of mineral and mineral conservation in detail as well as evaluating and

monitoring the implementation and the obstacles that occur in its implementation. The

Aifah, Riyan Afif hendrawan, Fransiskus Bimantoro Agung, Jepri Victor

Jurnal Indonesia Sosial Teknologi, Vol. 5, No. 11, November 2024 4805

scope of coal conservation includes mining recovery, processing recovery, low-quality

coal, residual processing products, marginal reserves, and unmined reserves.

PT Antareja Mahada Makmur is a subsidiary of PPA, which is also a coal contractor

company. The types of activities carried out include stripping the rock/cover soil subfield

excavation, loading and removing the layer (stripping) of rock/cover soil with or without

being preceded by blasting, and Transportation Services. With operational activities that

are closely related to coal, the implementation of good mining engineering principles,

especially the conservation aspect of the implementation of coal conservation through

determining the scope of conservation objects and solving problems that occur after the

evaluation process so that it can be followed up, is something that must be understood

and considered in the implementation of mining activities.

The objectives of this study are:

1. Increasing the percentage of coal conservation deposited in the new ROM A1

drainage area in February – June 2024 through good fine coal management, and

adding value to the PJP conservation aspect

2. Saving penalty costs from fine coal that is deblended into products sold by the owner

3. Reduces the level of environmental pollution in the new ROM A1 area.

Research Methods

The research method used is descriptive. This study will explain the implementation

of the drainage area's conservation level by determining the scope of each conservation

object. This study also compared what can be done to increase the percentage of coal

conservation deposited in the new ROM A1 drainage area with Root cause analyst

Fishbone.

Data collection in this study was conducted through direct field observations in the

ROM A1 drainage area, interviews with workers related to coal conservation, and

documentation related to coal management activities at PT Antareja Mahada Makmur.

Quantitative data were gathered from records pertaining to coal production and

management, including the volume of discarded fine coal, precipitation levels, and the

efficacy of the fine coal capture system. In addition, qualitative data were gathered

through in-depth interviews with the objective of gaining insight into the challenges and

opportunities associated with the implementation of coal conservation measures.

The data were analyzed using a descriptive approach. The quantitative data were

processed using simple statistical methods to calculate the percentage change in coal

conservation, the decrease in the amount of wasted fine coal, and the estimated economic

value saved. The qualitative data were analyzed using a thematic approach to identify

root cause factors that affect the level of conservation. Fishbone diagrams were used as a

visual aid to map the relationships between the various causal factors and plan corrective

measures.