%A 1514051025 EKA AGUSTINA
%T PENINGKATAN BIODEGRADABILITAS ONGGOK UNTUK
PRODUKSI BIOGAS MENGGUNAKAN KULTUR BACKSLOP

Aspergillus Niger
%X Tujuan penelitian ini adalah mendapatkan konsentrasi kultur backslop
optimum pada campuran onggok dan air effluent biogas untuk
menghasilkan nilai S-COD tertinggi dan mengetahui kandungan perubahan
SCOD, pH, TSS, dan TS. Fermentasi onggok menggunakan kultur
backslop Aspergillus niger menggunakan dua faktor yaitu konsentrasi kultur
backslop 0%, 20%, 30% dan 40% dan lama fermentasi 0 , 1, 3 dan 5 hari.
Hasil penelitian menunjukkan bahwa konsentrasi kultur backslop dan lama
fermentasi optimum yang menghasilkan total soluble chemycal oxygen
demand (S-COD) tertinggi yaitu perlakuan konsentrasi kultur
backslop Aspergillus niger 30% dengan lama fermentasi 3 hari dengan
nilai sebesar 6924,5 mg/L. Fermentasi onggok dengan kultur backslop
menghasilkan nilai soluble chemical oxygen demand (S-COD) yang
terus mengalami peningkatan sedangkan pH, total suspended solid

v

(TSS), dan total solid (TS) terus mengalami penurunan hingga lama
fermentasi 5 hari.

Kata Kunci : Aspergillus niger, Biogas, Pretreatment onggok, Soluble
Chemical Oxygen Demand (SCOD), Indsutri Tapioka. The purposes of this experiment were to obtain the optimum
concentration of backslop culture in the mix of onggok and biogas waste
water to produce the highest S-COD value and to know the content of
changes of SCOD, pH, TSS, and TS. The fermentation of Onggok using
Backslop culture Aspergillus Niger using two factors that are
concentration of Backslop culture 0%, 20%, 30% and 40% and
fermentation time 0, 1, 3 and 5 days. The results showed that the culture
concentration of backslop and long-optimum fermentation that resulted in
a total of soluble chemycal oxygen demand (S-COD) is the highest
concentration treatment of Reslop Aspergillus Niger 30% with the

duration of fermentation 3 Day with the value 6924.5 mg/L. Back-
slopping fermentation, it produces soluble chemical oxygen demand (S-
COD) value which continues to increase while pH, total suspended solid

iii

(TSS), and total solid (TS) continue to decline until the duration of
fermentation 5 days.

Keywords: Aspergillus niger, biogas, pretreatment of onggok, soluble

chemical oxygen demand, tapioca industrial
%D 2019
%C UNIVERSITAS LAMPUNG
%R 1514051025
%I FAKULTAS PERTANIAN
%L eprints56943