Analisis Kadar Kebutuhan Oksigen Kimiawi (KOK), Kebutuhan Oksigen Biologi dan Minyak Lemak pada Limbah Cair Pabrik Kelapa Sawit

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ANALISIS KADAR KEBUTUHAN OKSIGEN KIMIAWI (KOK),
KEBUTUHAN OKSIGEN BIOLOGI (KOB), MINYAK/LEMAK
PADA LIMBAH CAIR PABRIK KELAPA SAWIT

ABSTRAK

Analisis yang telah dilakukan untuk menentukan kadar Kebutuhan Oksigen
Kimiawi dan Kebutuhan Oksigen Biologi dengan metode titrasi, Minyak/Lemak
dengan motode ekstraksi-gravimetri pada Limabah Cair Pabrik Kelapa Sawit.
Dengan melakukan pemanasan selama 2 jam pada suhu 150oC dilakukan pada
COD Destruction Block lalu dititrasi diperoleh kadar KOK pabrik A sebanyak
96,384 mg/L, pabrik B sebanyak 144,576 mg/L, pabrik C sebanyak 160,64 mg/L,
dengan melakukan inkubasi lalu dititrasi diperoleh kadar KOB pabrik A sebanyak
0,4 mg/L dengan pengenceran 500 kali, pabrik B sebanyak C sebanyak 0,4 mg/L
dengan pengenceran 1000 kali, dengan melakukan pengeringan, ekstraksi dan
penimbangan diperoleh kadar Minyak/Lemak pabrik A sebanyak 19 mg/L, pabrik
B sebanyak 14 mg/L, pabrik C sebanyak 71 mg/L. Dari hasil diatas diperoleh
kadar KOK, KOB dan Minyak/Lemak pabrik A dan B memenuhi baku mutu,
sedangkan pabrik C kadar KOK dan KOB memenuhi baku mutu, tetapi kadar
Minyak/Lemak tidak memenuhi baku mutu yang ditetapkan oleh

Permen/LH/5/2014 tentang Baku Mutu Air Limbah.

Kata kunci : KOK, KOB, Minyak/Lemak

Universitas Sumatera Utara

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ANALYSIS OF CHEMICAL OXYGEN DEMAND (COD),
BIOLOGICAL OXYGEN DEMAND (BOD) AND OIL/FAT
IN PALM OIL MILL EFFLUENT

ABSTRACT

Analyses have been performed to determine the level of Chemical Oxygen
Demand and Biological Oxygen Demand by titration method, Oil / Fat with
gravimetric extraction-method on Liquid Fluid of Palm Oil Factory. By heating
for 2 hours at temperature 150oC done at COD Destruction Block then dititrasi
obtained COD A plant amounting to 96,384 mg / L, factory B as much 144,576
mg / L, factory C as much 160,64 mg / L, by incubation and then titrated Obtained
A plant BOD content of 0.4 mg / L with dilution 500 times, factory B of C as

much as 0.4 mg / L with dilution 1000 times, by drying, extracting and weighing
obtained Oil / A plant oil content of 19 mg / L, plant B as much as 14 mg / L,
factory C as much as 71 mg / L. From the above results, COD, BOD and Oil / Fat
content of factory A and B meet the quality standard, while the C plant content of
COD and BOD meet the quality standard, but the oil / fat content does not meet
the quality standard set by Permen / LH / 5/2014 On Wastewater Quality
Standards.

Keywords : COD, BOD, Oil/Fat

Universitas Sumatera Utara