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All Journal Jurnal Rekayasa Proses REKAYASA Jurnal Rekayasa Proses Jurnal Serambi Engineering Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Journal of Community Based Environmental Engineering and Management Jurnal Teknologi Lingkungan Lahan Basah JAMAIKA: Jurnal Abdi Masyarakat Jurnal Rekayasa Proses Environmental Insight Journal
Mellyanawaty, Melly
Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Muhammadiyah Tasikmalaya
Religion Agriculture, Biological Sciences & Forestry Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Journal : Jurnal Rekayasa Proses

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Pengaruh penambahan zeolit alam termodifikasi sebagai media imobilisasi bakteri terhadap dekompisisi material organik secara anaerob Melly Mellyanawaty; Chandra Wahyu Purnomo; Wiratni Budhijanto
Jurnal Rekayasa Proses Vol 11 No 1 (2017): Volume 11, Number 1, 2017
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.26353

Abstract

This study aims to determine the effect of modified natural zeolite as microbial immobilization medium for anaerobic decomposition of organic materials. The modification was Fe2+ impregnation into the ring-shaped zeolite. Three different concentrations of Fe2+ solution were used to impregnate the zeolite, i.e. 10 mg/L, 100 mg/L and 2000 mg/L. The wet impregnation process was conducted. Four variations of Fe2+ concentration deposited into zeolite were prepared, i.e. 0 mgFe2+/gZeo (as control), 0.0016 mgFe2+/gZeo, 0.0156 mgFe2+/gZeo and 0.3125 mgFe2+/gZeo. The modified zeolite was added to the batch anaerobic reactor, which filled with the volume ratio of liquid substrate and zeolite of 1:1 for all variations of media. Distillery spent wash was used as the substrate in this study. The soluble Chemical Oxygen Demand (sCOD) value of the substrate was homogenized at 10000 mg/L. Effluent digester of cow manure bio digester was added as inoculum. The volume ratio of distillery spent wash to the inoculum was 2:1. The anaerobic process was conducted for 28 days.The performance of four media in the anaerobic digestion of distillation spent wash was measured in terms of sCOD, total solid (TS), and volatile solid (VS). The comparison among media was more accurately and conclusively represented by sCOD value. The visual analysis of sCOD trend during 28 days indicated that zeolite with 0.0156 mgFe/gZeo resulted in the highest sCOD removal of 66.73%. Meanwhile, zeolite with 0.3125 mgFe/gZeo increased the production of biogas by the highest percentage of 43% to be compared to control. Generally speaking, the addition of Fe2+ into zeolit led to higher removal of sCOD and produced more biogas than control.
Proses peruraian anaerobik palm oil mill effluent dengan media zeolit termodifikasi Melly Mellyanawaty; Firda Mahira Alfiata Chusna; Estin Nofiyanti
Jurnal Rekayasa Proses Vol 13 No 1 (2019): Volume 13, Number 1, 2019
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.39206

Abstract

This work evaluated the effect of modified zeolite as microbial immobilization medium in anaerobic digestion of palm oil mill effluent (POME). The affinity of microorganisms to attach and grow on the media surface could be increased by the addition of micro-nutrient into the media. The effect of micro-nutrient addition was studied in 1000 mL Erlenmeyer flask as batch reactors. Experiments were conducted for 30 days. The concentration of soluble chemical oxygen demand (COD) in substrate was 8000 mg/L. Zeolite was impregnated with nickel (Ni) and zinc (Zn) at individual concentration of 2.7x10-3 mg Ni/g zeolite and 3.5x10‑3 mg Zn/g zeolite. The influence of each modified zeolite was determined by periodic measurement of sCOD, volatile fatty acid (VFA), pH, and biogas production. Cumulative biogas productions in this study were 252.44; 172.13; 57.70 ml from Ni-modified, Zn-modified and natural zeolites, respectively. The highest sCOD removal was obtained in reactor with Zn-modified zeolite with 38.22% removal, followed by 33.96% with Ni-modified zeolite, and 27.87% removal with natural zeolite.
Peningkatan produksi biogas dari palm oil mill effluent (POME) dengan fluidisasi media zeolit termodifikasi pada sistem batch Firda Mahira Alfiata Chusna; Melly Mellyanawaty; Estin Noviyanti
Jurnal Rekayasa Proses Vol 14 No 1 (2020): Volume 14, Number 1, 2020
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.56133

Abstract

The production of crude palm oil (CPO) in Indonesia tends to increase over time. Palm oil mill effluent (POME) is the wastewater generated from the palm oil mill process with high organic content. POME is a potential source for anaerobic digestion due to its high organic content. The challenge of POME treatment using an anaerobic process is to enhance biogas production with high soluble chemical oxygen demand (sCOD) removal efficiency. The purpose of this study was to evaluate the effect of selected trace elements addition onto zeolite as immobilization media to the anaerobic digestion of POME in a fluidized batch system. Natural zeolite was used as the medium to immobilize microorganisms in an anaerobic fluidized bed reactor (AFBR). This study used three trace elements impregnated to natural zeolites, i.e. Ni2+, Zn2+, Mg2+. The result shows that Ni2+ and Zn2+improve the methanogenesis process, prevent the accumulation of VFA as an intermediate product and increase the methane (biogas) production. Meanwhile, Mg2+ only reduced sCOD significantly but it did not affect methane production. Fluidization enhanced the performance of the POME anaerobic digestion process. The fluidization provide a positive effect to enhance biogas production and sCOD removal. The efficiency of sCOD removal in the entire reactors were 80.82%; 81.77%; 75.89% for AFBR-Ni; AFBR-Zn and AFBR-control respectively. The total volume of methane produced by the three AFBR were 163,04; 136,42; 62,79 (in ml CH4 / g sCOD) for AFBR-Ni; AFBR-Zn and AFBR-control, respectively.
Co-Authors A Ibrahim Bayu Tri Laksono Chandra Wahyu Purnomo Chandra Wahyu Purnomo Estin Nofiyanti Estin Nofiyanti Estin Noviyanti Firda Mahira Alfiata Chusna Firda Mahira Alfiata Chusna Gatut Ari Wardani Hendrik Iskandar Iskandar, Anan Iswanto, Nur Lestari, Agnes DN. Lili Windyasari Bela N Mariam N Nurjanah N Salman Novi Nurjanah Noviyanti, Estin Nur Iswanto Nurcholis Salman Prayogi, Yoyok Rubiansyah Dio Lazuardi Salman, Nurcholis Salman, Nurcholis Silviani Siti Nurhalimah Tazkia Nurfadhillah Wiratni Budhijanto Wiratni Budhijanto