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Pengaruh Pemberian Tekanan dan Pemanasan Terhadap Densitas Bahan Bakar (Bio-Coke) Berbasis Biomassa Bonggol Jagung Asri Gani; Erdiwansyah Erdiwansyah; Edi Munawar; Muhammad Faisal; Muhammad Rozan Arkan D; Muhammad Reza
Jurnal Serambi Engineering Vol 8, No 3 (2023): Juli 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i3.6101

Limbah biomassa di Indonesia umumnya dan khususnya di Aceh ketersediaannya saat cukup melimpah. Salah satu limbah biomassa yang melimpah saat ini adalah bonggol jagung sisa produk pertanian. Limbah biomassa seperti bonggol jagung dapat dimanfaatkan menjadi bahan bakar (bio-coke) yang memiliki nilai kalor tinggi dan ramah lingkungan. Penelitian ini bertujuan untuk membuat bahan bakar padat berbasis biomassa yang memiliki nilai kalor tinggi sebagai pengganti kayu bakar. Proses produksi bahan bakar dilakukan melalui beberapa perlakukan seperti pengeringan, penggilingan dan pengayakan. Selanjutnya, dimasukkan ke dalam cetakan dan kemudian ditekan hingga 22 MPa dengan pemanasan 150oC. Alat tekan yang digunakan adalah mesin press dan pemanas menggunakan heater. Hasil penelitian menunjukkan bahwa bahan bakar (bio-coke) yang diproduksi memiliki densitas tinggi 1.41 untuk ukuran 25 mm dan 1.43 untuk ukuran sampel 30 mm. Secara keseluruhan hasil produksi bahan bakar padat (bio-coke) berbasis bonggol jagung memiliki densitas yang lebih baik.

Characteristics of Liquid Smoke From Young Coconut Shells at Various Pyrolysis Temperature Ressa Fitra Adinda; Muhammad Faisal; Fauzi Muhammad Djuned
Elkawnie: Journal of Islamic Science and Technology Vol 9, No 1 (2023)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v9i1.14225

Abstract: Young coconut shells contain wood components, such as hemicellulose, cellulose, and lignin. These compounds can be used as raw materials for liquid smoke. The physical and biological characteristics of liquid smoke from young coconut shells pyrolysed at various temperatures were investigated in this study. Specifically, young coconut shells were pyrolysed at 300°C–420°C in a slow pyrolysis reactor. To eliminate tar, the liquid smoke was distilled at 190°C. Further, the chemical content of the liquid smoke was quantified using Gas Chromatography-Mass Spectrometry (GC-MS). Acetic acid and phenol compounds were identified using high performance liquid chromatography (HPLC) and ultraviolet-vis spectrophotometry. The gas chromatography-mass spectrometry (GC-MS) data revealed that liquid smoke contains over 15 chemical components, including phenolic acid, carboxylic acid and its derivatives. Antibacterial, minimum inhibitory concentration (MIC) and minimum killing concentration (MKC) tests were performed to analyse the antimicrobial properties of liquid smoke in inhibiting the growth of Escherichia coli and Salmonella enterica sv Typhimurium. The pyrolysis temperatures affected the composition of the produced liquid smoke. The highest phenol and acetic acid content were found at 340°C and 380°C, where lignin is degraded into phenolic compounds and cellulose is degraded to produce acetic acid. The results of the antibacterial test showed that the maximum inhibition zone was obtained at 420°C, and at 340°C and 380°C the bacteria were inhibited and died.Abstrak: Tempurung kelapa muda mengandung komponen kayu seperti hemiselulosa, selulosa, dan lignin. Senyawa ini dapat digunakan sebagai bahan baku asap cair. Karakteristik fisik dan biologis asap cair dari tempurung kelapa muda yang dipirolisis pada berbagai suhu diselidiki dalam penelitian ini. Tempurung kelapa muda dipirolisis pada suhu 300 °C - 420 °C dalam reaktor pirolisis lambat. Untuk menghilangkan tar asap cair didistilasi pada suhu 190 °C. Selanjutnya, kandungan senyawa kimia asap cair dikuantifikasi menggunakan gas chromatography-mass spectrometry (GC-MS). Senyawa asam asetat dan fenol diidentifikasi menggunakan high performance liquid chromatography (HPLC) dan Spektrofotometri UV-Vis. Data gas chromatography-mass spectrometry (GC-MS) menunjukkan bahwa asap cair mengandung lebih dari 15 komponen kimia, termasuk asam fenolik, asam karboksilat dan turunannya. Uji antibakteri, Minimum Inhibitory Concentrantion (MIC) dan Minimum Killing Concentrantion (MKC) dilakukan untuk menganalisis sifat antimikroba asap cair dalam menghambat pertumbuhan Escherichia coli dan Salmonella enterica sv Typhimurium. Temperatur pirolisis mempengaruhi komposisi asap cair yang dihasilkan. Kandungan fenol dan asam asetat tertinggi ditemukan pada suhu 340°C dan 380°C, dimana pada suhu tersebut lignin terdegradasi menjadi senyawa fenol dan selulosa terdegradasi menghasilkan asam asetat. Hasil uji antibakteri menunjukkan bahwa zona hambat maksimum diperoleh pada suhu 420 °C, pada suhu 340 °C dan 380 °C bakteri ditemukan terhambat dan mati.

Soil Conservation Instructions Against Environmental Damage Due to Erosion Rates in the Krueng Seulimeum Sub-watershed Siswanda Siswanda; Helmi Helmi; Muhammad Faisal
Rona Teknik Pertanian Vol 16, No 1 (2023): Volume No. 16, No. 1, April 2023
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v16i1.24296

AbstrakTanah merupakan sumber daya alam yang penting bagi ekosistem karena menyediakan habitat bagi manusia, hewan, dan tumbuhan. Erosi tanah sangat dipengaruhi oleh kondisi geologi suatu wilayah, seperti kemiringan dan panjang tanah, jenis batuan dan sedimen, permeabilitas tanah, vegetasi, iklim, dan aktivitas makhluk hidup. Penelitian ini bertujuan untuk mengetahui besarnya erosi dan menganalisis tingkat bahaya erosi yang terjadi pada Daerah Aliran Sungai (DAS) Krueng Seulimeum dan Krueng Aceh, serta mengevaluasi dampak kerusakannya terhadap lingkungan. Penelitian dilakukan menggunakan metode survei dengan cara observasi langsung terhadap lokasi penelitian dan melakukan analisis tanah. Nilai erosi dihitung menggunakan persamaan USLE (Universal Soil Loss Equation). Pengaruh faktor panjang dan kemiringan lereng, program pengelolaan dan metode tindakan konservasinya dianalisa. Tahapan penelitian meliputi: (1) pengumpulan data sekunder dan peta lokasi, (2) peninjauan lokasi penelitian dan (3) analisis tanah dan evaluasi data. Berdasarkan hasil jenis tanah, kemiringan, dan penggunaan lahan menunjukkan bahwa dilokasi penelitian terdapat sembilan Satuan Peta Lahan (SPL) dengan total luas areal 26.497,07 ha. Erosi potensial terbesar terdapat pada SPL 9 yaitu 2.857,72 ton ha-1 th-1. Sedangkan erosi aktual terbesar terdapat pada SPL 8 yaitu 254,06 ton ha-1 th-1 . Terdapat tiga tingkat bahaya erosi yaitu rendah, sedang dan sangat tinggi. Tingkat bahaya erosi rendah pada SPL 1, 2, 4, 5, 6, 7, 8 dan 9 ; tingkat bahaya erosi sedang pada SPL 1, 2, 3 dan 6. SPL 2 menunjukkan tingkat indeks bahaya erosi yang sangat tinggi. Arahan konservasi tanah yang disarankan adalah reboisasi terhadap kawasan lindung pada SPL 4 dan 8. Metode konservasi dapat diterapkan pada lahan pertanian SPL 1,2,3,5,6,7, dan 9.AbstractSoil is an important natural resource for ecosystems because it provides habitat for humans, animals, and plants. Soil erosion is strongly influenced by a region's geological conditions, such as the slope and length of the land, the type of rock and sediment, the permeability of the land, vegetation, climate, and the activities of living things. The aims of this research were to assess the degree of erosion risk in the Krueng Seulimuem Sub-watershed and the Krueng Aceh Watershed, as well as the environmental consequences of the damage. Direct observations at the research site and soil sample analysis were used to conduct the investigation. The erosion was estimated using the USLE (Universal Soil Loss Equation). The effects of slope length and steepness factors, program management aspects, and conservation methods, as well as a variety of other research criteria, were assessed. It was carried out in three stages: (1) secondary data processing and map preparation; (2) analysis of the research site; and (3) soil analysis and data evaluation. According to the results of the soil type, slope, and land use overlay map, the research site had nine land mapping units (LMU) covering a total area of 26,497.07 hectares. The largest potential erosion was at LMU 9, with 2,857.72 tons ha-1 yr-1, while the largest actual erosion occurred at LMU 8, with 254.06 tons ha-1 yr-1. There were three degrees of erosion risk: low, moderate, and very high. The low level was present in LMU 1, 2, 4, 5, 6, 7, 8, and 9. The moderate level was present in LMU 1, 2, 3, and 6. LMU 2 was present to the very high-level index. The recommended strategy for soil conservation was reforestation of protected areas at LMU 4 and 8. Conservation methods may be used in agricultural fields at LMU 1, 2, 3, 5, 6, 7, and 9

Adsorption of Cadmium Metal Ions by a Physically-Chemically Activated Adsorbent From Candlenut (Aleurites Moluccana) Shells Endy Setiawan; Muhammad Faisal; Mariana Mariana
Elkawnie: Journal of Islamic Science and Technology Vol 9, No 2 (2023)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v9i2.16956

Abstract: Cadmium (Cd) is a pollutant that is highly toxic, dangerous to blood vessels, and bioaccumulative in water. The purpose of this paper is to investigate the kinetics and isotherms of cadmium ion adsorption using candlenut shell activated carbon. Adsorbents were prepared by chemically activating with 0.5M HCl, physically activating via pyrolysis at 700°C, and a combination of both methods. Adsorptions were conducted using Cd solutions with initial concentrations of 100-300 mg/L, at 100 rpm stirring, and contact times of 5-50 minutes. The chemical functional properties and surface morphology of the adsorbents were studied using Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), respectively. The characterization revealed that the adsorbent prepared by the physical-chemical activation method was the best and was used to test its performance in adsorbing Cd(II) solutions. The results showed that adsorption capacity increased with contact time and reached equilibrium at 50 minutes with a qm value of 12.6 mg/g. The adsorption process followed the Langmuir isotherm model with a constant of 0.14 and R2 value of 0.986, while the kinetic model was pseudo-second order with R2=0.999. The results demonstrated that candlenut shells are effective as adsorbent media for treating Cd(II) waste.Abstrak: Kadmium Cd(II) merupakan salah satu bahan pencemar yang sangat beracun, berbahaya bagi tubuh dan mengalami biokumulasi dalam perairan. Artikel ini bertujuan untuk mengkaji kinetik dan isoterm penyerapan logam kadmium menggunakan arang aktif dari cangkang kulit kemiri. Adsorben cangkang kemiri dipreparasi dengan tiga variasi perlakuan aktivasi yaitu aktivasi kimia dengan larutan HCl 0,5M, aktivasi fisika melalui pirolisis pada suhu 700°C, dan kombinasi kimia dan fisika. Adsorpsi dilakukan dengan menggunakan larutan Cd dengan konsentrasi awal 100-300 mg/L, pengadukan 100 rpm dan waktu kontak 5-50 menit. Adsorben dikarakterisasi menggunakan Fourier-transform infrared spectroscopy (FTIR) untuk mempelajari kandungan fungsional kimianya, dan menggunakan Scanning Electron Microscopy (SEM) untuk mengobservasi morfologi permukaan. Hasil karakterisasi menunjukkan bahwa adsorben dengan aktivasi kimia fisika menunjukkan karakteristik terbaik dan dipakai sebagai representatif dalam pengujian performa adsorpsi larutan Cd(II). Performa kerja adsorben ditinjau dari segi kapasitas adsorpsi terhadap waktu kontak dan konsentrasi awal larutan Cd(II). Selain itu, studi isotherm dan kinetika adsorpsi juga dilakukan untuk mempelajari mekanisme adsorpsi yang terjadi. Hasil eksperimen menunjukkan bahwa kapasitas adsorpsi meningkat seiring bertambahnya waktu kontak, dan kesetimbangan dicapai pada 50 menit dengan nilai qm sebesar 12,6 mg/g. Proses adsorpsi Cd(II) menggunakan adsorben cangkang kemiri teraktivasi kimia fisika mengikuti model isotherm Langmuir model dengan nilai konstanta 0,14 dan dan R2 = 0,986. Model kinetika adsorpsi ini adalah orde dua semu dengan R2=0,999. Hasil yang diperoleh membuktikan bahwa cangkang kemiri sangat efektif untuk dijadikan media adsorben untuk pengolahan limbah Cd(II).

Durian Rind-Based Liquid Smoke as a Natural Preservative for Chicken Meatballs: Effect of Pyrolysis Temperature and Liquid Smoke Concentration Muhammad Faisal; Suraiya Kamaruzzaman; Ressa Fitra Adinda; Dimas Anugerah Ilahi; Taufik Hidayat; Hera Desvita
Journal of Applied Engineering and Technological Science (JAETS) Vol. 5 No. 2 (2024): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v5i2.2770

Liquid smoke is produced by the pyrolysis of biomass. The use of liquid smoke has numerous advantages over traditional smoking methods. The liquid smoke market is well-established and growing, providing an opportunity to commercialize biomass pyrolysis. This study aimed to investigate the utility of durian rind, biomass waste rich in lignin, cellulose, and hemicellulose, as a natural preservative to extend the shelf life of chicken meatballs and to mitigate environmental problems caused by the disposal of untreated durian rind waste. Dried durian rinds with approximately 10% water content were pyrolyzed at temperatures of 300°C (T1 liquid smoke), 340°C (T2 liquid smoke), and 380°C (T3 liquid smoke) using a slow pyrolysis reactor in batch conditions to produce crude liquid smoke, which was then purified by distillation at 190°C. Chicken meatballs were then soaked in liquid smoke solutions with concentrations of 1%, 2%, and 3% for 15 minutes, and the meatballs checked for signs of spoilage every 4 hours. Tests for total volatile base nitrogen (TVB-N), in addition to the total plate count (TPC) and most probable number (MPN) of Escherichia coli bacteria, were performed to evaluate the preservation ability of the liquid smoke. The results indicated that both the pyrolysis temperature and liquid smoke concentration affected the preservation time, with a pyrolysis temperature of T3 and liquid smoke concentration of 3% optimum for chicken meatball preservation. Under these conditions, the meatballs could be stored for 56 hours with TVB-N, TPC, and E. coli MPN values of 21.01 mg N/100 g, 5.37 × 104 CFU/g, and 75 MPN/g, respectively. The findings suggest that liquid smoke derived from durian rinds could be used to preserve chicken meatballs.

Pengaruh Pemberian Tekanan dan Pemanasan Terhadap Densitas Bahan Bakar (Bio-Coke) Berbasis Biomassa Bonggol Jagung Asri Gani; Erdiwansyah Erdiwansyah; Edi Munawar; Muhammad Faisal; Muhammad Rozan Arkan D; Muhammad Reza
Jurnal Serambi Engineering Vol 8, No 3 (2023): Juli 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i3.6101

Limbah biomassa di Indonesia umumnya dan khususnya di Aceh ketersediaannya saat cukup melimpah. Salah satu limbah biomassa yang melimpah saat ini adalah bonggol jagung sisa produk pertanian. Limbah biomassa seperti bonggol jagung dapat dimanfaatkan menjadi bahan bakar (bio-coke) yang memiliki nilai kalor tinggi dan ramah lingkungan. Penelitian ini bertujuan untuk membuat bahan bakar padat berbasis biomassa yang memiliki nilai kalor tinggi sebagai pengganti kayu bakar. Proses produksi bahan bakar dilakukan melalui beberapa perlakukan seperti pengeringan, penggilingan dan pengayakan. Selanjutnya, dimasukkan ke dalam cetakan dan kemudian ditekan hingga 22 MPa dengan pemanasan 150oC. Alat tekan yang digunakan adalah mesin press dan pemanas menggunakan heater. Hasil penelitian menunjukkan bahwa bahan bakar (bio-coke) yang diproduksi memiliki densitas tinggi 1.41 untuk ukuran 25 mm dan 1.43 untuk ukuran sampel 30 mm. Secara keseluruhan hasil produksi bahan bakar padat (bio-coke) berbasis bonggol jagung memiliki densitas yang lebih baik.

Characteristics of Liquid Waste-Derived Organic Fertilizer Enriched With Oil Palm Empty Fruit Bunches Ash Through Anaerobic Fermentation Mariska, Rafi; Faisal, Muhammad; Rosnelly, Cut Meurah; Mirda, Erisna
Elkawnie: Journal of Islamic Science and Technology Vol 10, No 2 (2024)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v10i2.18444

Abstract: Palm oil mill effluent (POME) is an organic waste with high levels of BOD, N, P, K, and Mg. Its presence in rivers and soil has led to pollution and negative impacts on the environment. One potential solution to this issue is transforming POME into a valuable liquid organic fertilizer (LOF). This study aims to evaluate the characteristics of LOF derived from POME-derived LOF enriched with oil palm empty fruit bunches (OPEFB) ash through anaerobic fermentation. A 3.5 L of POME and molasses (5% v/v) were introduced into the anaerobic reactor. OPEFB ash was then added at concentrations of 0.35%, 0.46%, and 0.57% w/v. Fermentation was conducted for 5, 8, and 11 days, and Effective Microorganisms (EM4) with concentrations of 1% and 2% v/v were employed to accelerate LOF formation. The evaluation of LOF involved testing its physical characteristics (color, smell, gas, foam, temperature, and EC), fertilizer chemistry (pH, C-organic, Nitrogen, P2O5, and K2O), and biological aspects (contaminant bacteria E. coli). The results of the physical observations indicated that all LOF variations had fully fermented after 11 days, characterized by the presence of an alcohol-like odor, brownish color, absence of foam, and gas bubbles. Chemical tests revealed that LOF B2 and LOF A1, fermented for 8 days, exhibited the highest levels of N, P, and K, which were 0.08%, 0.05%, 1.26% for LOF B2, and 0.085%, 0.023%, 1.24% for LOF A1, respectively. Furthermore, the test result for E. coli in the LOF B2 and LOF A1 samples after 8 days of fermentation indicated that the E. coli level was below 3 MPN per mL. This confirms that the obtained LOF meets the minimum technical requirements specified in the Minister of Agriculture Regulation of the Republic of Indonesia. Therefore, the LOF is suitable for industrial-scale production and application in the agricultural sector.Abstrak: Limbah Cair Pabrik Kelapa Sawit (POME) merupakan limbah organik dengan kadar BOD, N, P, K, dan Mg yang tinggi. Kehadirannya di sungai dan tanah telah menyebabkan pencemaran dan memberikan dampak negatif terhadap lingkungan. Untuk mengatasi masalah ini, salah satu solusi potensial adalah mengubah POME menjadi pupuk organik cair (POC) yang bernilai tambah. Penelitian ini bertujuan untuk mengevaluasi karakteristik POC dari POME setelah penambahan abu Tandan Kosong Kelapa Sawit (TKKS) dengan metode fermentasi anaerob. Sebanyak 3,5 L POME dan tetes tebu (5% v/v) dimasukkan ke dalam reaktor anaerobik. Kemudian ditambahkan abu TKKS dengan konsentrasi 0,35%; 0,46%; dan 0,57% b/v. Fermentasi dilakukan selama 5, 8, dan 11 hari, dan Effective Microorganism (EM4) dengan konsentrasi 1% dan 2% v/v digunakan untuk mempercepat pembentukan POC. Evaluasi POC meliputi pengujian sifat fisik (warna, bau, gas, buih, suhu, dan EC), kimia pupuk (pH, C-organik, Nitrogen, P2O5, dan K2O), dan aspek biologi (bakteri pencemar E. coli). Hasil pengamatan fisik menunjukkan bahwa semua variasi POC telah terfermentasi sempurna setelah 11 hari, ditandai dengan adanya bau alkohol, warna kecoklatan, tidak adanya buih dan gelembung gas. Uji kimia menunjukkan bahwa POC B2 dan POC A1 yang difermentasi selama 8 hari menunjukkan kadar N, P, dan K tertinggi berturut-turut, yaitu 0,08%; 0,05%; 1,26% untuk POC B2; dan 0,085%; 0,023%; 1,24% untuk POC A1. Selanjutnya, hasil pengujian E. coli pada sampel POC B2 dan POC A1 dengan lama fermentasi 8 hari menunjukkan bahwa kadar E. coli di bawah 3 MPN per mL sehingga POC yang diperoleh telah memenuhi persyaratan teknis minimum (PTM) berdasarkan Peraturan Menteri Pertanian No. 261 Tahun 2019.

Impact of Pyrolysis Temperature and Jatropha Seed Adhesive on the Properties of Bio-charcoal from Young Coconut Waste Khairul Anwar; Mahidin Mahidin; Ichwana Ramli; Muhammad Faisal; Agustami Sitorus
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1372-1382

This study assesses the characteristics of bio-charcoal from young coconut waste with the effect of variations in pyrolysis temperature and the addition of Jatropha seed adhesive. The physical and chemical parameters of bio- charcoal from three temperature variation treatments (380°C, 430°C, and 480°C) and three adhesive concentrations (15%, 20%, and 25%) were analyzed, including moisture content, ash content, volatile matter, calorific value and fixed carbon. In addition, the application of ANOVA and DMRT were used to evaluate the significant differences between the various treatments with significant p-value ≤ 5%. The optimal result was obtained at temperature of 430°C and 25% adhesive indicating a calorific value of 6421 cal/g, moisture content of 6.1%, ash content of 7.6% volatile matter of 7.7% and fixed carbon of 78.7%. The findings reveal that adhesive content significantly affects bio-charcoal quality, while temperature variations influence moisture content and heating value. This study concludes that optimizing temperature and adhesive concentrations can yield high-quality bio-charcoal, offering a cleaner, sustainable source. Keywords: Adhesive, DMRT, Jatropha curcas, Pyrolysis, Young coconut waste.

Wastewater Processing of Chicken Slaughterhouses Using Combination of Trickling Filter and Rotating Biological Contactor Handriani Handriani; Muhammad Faisal; Cut Meurah Rosnelly
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.249-261

This research was conducted to explore the effectiveness of combined Trickling Filter (TF) and Rotating Biological Contactor (RBC) method in processing liquid waste from chicken slaughterhouses through local and economical media. Microorganisms were grown by inserting liquid waste into a TF tank containing gravel, used ceramics, coconut shells, and pumice. Subsequently, liquid waste flowed into a rotating biological contactor added with local microorganisms from stale rice and fermented banana stems. Waste treatment was carried out with variations in retention time of 1, 3, and 6 h. The results showed that at 6 h, the organic compound decreased significantly. The removal efficiency obtained was 87.05%, 82.11%, 90.51%, 22.57%, 79.36%, and 88.66% for Biological Oxygen Demand, Chemical Oxygen Demand, Total Suspended Solids, Total Dissolved Solids, Turbidity, and Ammonia, respectively. This high efficiency was supported by the collaboration between the activity of microorganisms attached to the TF biofilm and the use of local microorganisms in decomposing organic compounds in the rotating biological contactor. The combination of the two methods has been proven to help waste treatment process from chicken slaughterhouses in an environmentally friendly and efficient manner. Keywords: Biofilm, Chicken slaughterhouse waste, Local microorganisms, Rotating biological contactor, Trickling filter.

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