STUDI PENGURANGAN CEMARAN GAS BUANG SULFUR DIOKSIDA (SO2) DARI EMISI CEROBONG PABRIK NIKEL DENGAN MENGGUNAKAN SENYAWA KIMIA PENJERAPAMONIUM HIDROKSIDA
ABSTRACT: Research on
absorption of gaseous SO2 from factory emissions of nickel ore industry using
solution of ammonium hydroxide has been done. Research conducted with
variations including concentration, temperature, and time of contact. Variation
of the concentration used were 1%, 2%, 3%, 4% and 5%; while variations of the
temperature used were 20oC, 25oC, 30oC,
35oC, and 40oC; and the contact time were 10, 15, 20, 25 and 30 minutes. SO2
gas emissions sampling is done at a time when the factory operates at flow
velocity and temperature conditions exhaust gas emissions. Results showed the greater
concentration of the solution absorbing the greater the concentration of sulfur
dioxide gas absorption, absorption temperature range between 30° C-40° C, and
the longer the absorption of the greater number of SO2 absorption. A comparison
of the percentage of the results of the average accumulation of absorption
between absorbent solution (ammonium hydroxide) and slurry of calcium carbonate
to reduce sulfur dioxide emissions to ambient air showed results still under
the limestone slurry i.e. absorption capability comparison 95.00%: 62,91%.
Difference in SO2 gas that is not absorbed out as emissions are still on top of
the raw set quality standard (750 mg/m3). The gas is absorbed to form ammonium
sulphate compounds that could be accommodated and packaged for commercialized
as a by-product in the form of inorganic fertilizers valued economically. As
such, ammonium hydroxide is used as an alternative to allow compound absorbent
and produces no side residue so that the result is considered safe for the environment.
Penulis: Agus Dina, M. Sjahrul,
Muhammad Zakir, dan Dadang
Kode Jurnal: jpkimiadd160595
