PENCEMARAN LINGKUNGAN PADA TUNGKU PEMBUATAN BRIKET KOKAS DAN PENGECORAN LOGAM SERTA PENCEMARAN LOGAM BERAT DI SENTRA INDUSTRI KECIL

Main Article Content

Hasnedi Hasnedi

Abstract


The coke production process by baking semi-coke briquette in a coke’s baking
oven will produce flue gas and smoke. The same also happens in its utilization
test in metal foundry kiln known as “tungkik†(plunging) smelting kiln. The gas
and smoke predictably contain heavy metals and polluted chemical compounds
that will pollute the environment and disturbing the health of workers if their
concentrations pass over defined standard quality level. The objective of this
study is to examine the amount of heavy metals and chemical compound
pollutants produced in the process of baking semi-coke to produce coke and in
the utilization of coke as fuel in tungkik kilns. Measurement results show that
heavy metals in the kiln’s chimneys and chambers such as As, Cd, Pb, and Hg
could not actually be detected, while Fe, Na, Al, Ca, and K could be easily
detected. The concentrations of such metals are in the range of: Na = 100-315
µg/m3, Al = 215-360 µg/m3, Ca = 786-1330 µg/m3, Fe = 478-2300 µg/m3, and K = 0.25-0.5 µg/m3. Meanwhile pollutants from other chemical compounds in the flue gas are NO2 = 80.7785-83.3725 mg/m3 and SO2 = 10.85-10.98 mg/m3. Pollutants
from ambient air are NO2 = 179.11-236.49 µg/Nm3, SO2 = 112.56-256.52 µg/Nm3,
CO = 43.80-100.98 µg/Nm3, HC = 0.05-0.64 µg/Nm3, and O3 = 2.8098-19.6065
µg/Nm3. The total particle’s content is also low, which is about 0.283 mg/m3 in the
coke baking oven’s chimneys, 0.554 mg/m3 in the tungkik kiln’s chimneys and
0.259 mg/m3 in the metal melting locations. Comparison of the measurement
results with that of quality standard defined by the government regulation of the
Republic of Indonesia No.41 Year 1999 about air pollution control, show that the
results is far below the tolerated level. Therefore, the existence of coke baking
oven is still feasible and safe to the environment.
Kata kunci: briket kokas, pencemaran lingkungan, logam berat

Article Details

How to Cite
Hasnedi, H. (2011). PENCEMARAN LINGKUNGAN PADA TUNGKU PEMBUATAN BRIKET KOKAS DAN PENGECORAN LOGAM SERTA PENCEMARAN LOGAM BERAT DI SENTRA INDUSTRI KECIL. Jurnal Energi Dan Lingkungan (Enerlink), 7(1), 1–8. https://doi.org/10.29122/elk.v7i1.2726
Section
ARTICLE

References

Bambang S R. 1998. ‘Pengaruh Proses

Karbonisasi Dua-Tingkat Terhadap Kualitas

Briket Kokas Ombilin Untuk Industri

Pengecoran’, Majalah BPPT, Ed.

No.LXXXVII/Juli, 72 - 83.

Badan Pengendalian Dampak Lingkungan

(BAPEDAL). 1999. Peraturan Pemerintah

Republik Indonesia No. 41 Tahun 1999,

Tentang Pengendalian Pencemaran Udara.

Boedoyo M.S dan Endang S. 1996. Strategi

Penyediaan Energi dan Pencemaran Udara.

Seminar Pengembangan Indeks dan Indikator

Mutu Lingkungan Udara. 30 Oktober 1996.

KLH. Jakarta.

Darmono. 1995. Logam Dalam Sistem Biologi

Makhluk Hidup. Penerbit UI Jakarta.

Mangunwidjaja Ambyo, 1980. “Coal Classification

and Its Implementation in Indonesiaâ€.

Prosiding Seminar on Coal Technology and

The Indonesian Needs. Jakarta.