Open AccessKampoeng Reklamasi: a case study of the designation reclamation type of an ex-tin minein Bangka Island, Indonesia
Author(s) -
A. Syauqi,
Jajat Sudrajat,
N. Anbiyak,
Benny P Hutahaean,
R Adnis
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/413/1/012025
Subject(s) - land reclamation , leaching (pedology) , spinach , tin , environmental science , nutrient , environmental chemistry , heavy metals , soil test , soil water , agronomy , chemistry , geography , soil science , archaeology , biology , biochemistry , organic chemistry
Air Jangkang mine is one of tin mines operated by PT TimahTbk in Bangka Island. Decades of mining operation produced piles of tailing which mainly composed of silica sand. The soil samples taken from the area indicate acidic soil, poor organic content, and low values of cation changing capacity in addition to low levels of phosphor and potassium. The low pH value also plays pivotal roles regarding the leaching and mobilization of heavy metals that accumulated in the water and soil. This study explains how the planning and implementation of other designation reclamation type as specified in the regulation. The critical stage in this reclamation area is the recovery and enrichment of nutrient-deficient soil so that the nutrients are available for plant uptake. In terms of food safety from the reclamation area, PT TimahTbk gives serious attention through implementing series of toxicity tests on crops and fish. The result illustrates that the toxic metal concentration in the vegetables, fruit, and fish are vary with the highest concentration of Pb and As are found in the vegetables. Samples taken from radish and spinach show Pb concentration at 6.1 ppm and 2.01 ppm respectively, exceeding Indonesian national standard at 0,5. This result suggests that heavy metals are mainly accumulated in the roots of a plant.