Anaerobic Reactor for Indonesian Tofu Wastewater Treatment

Adisasmito, Sanggono; Rasrendra, Carolus Borromeus; Chandra, Hengky; Gunartono, Mohammad Adimas

doi:10.14419/ijet.v7i3.26.17456

Cited by 10 publications

(4 citation statements)

References 3 publications

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“…Salah satunya adalah dengan meningkatkan rasio C/N sebagai pengisi biogas dan dapat meningkatkan kadar gas metana. Limbah air tahu ini juga memiliki komposisi gas metana 56,4%, karbon dioksida 42.7%, sehingga memungkinkan untuk digunakan sebagai bahan baku biogas (Adisasmito et al, 2018).…”

Section: Pendahuluanunclassified

Analisis Produksi Biogas Sebagai Energi Alternatif Pada Kompor Biogas Menggunakan Campuran Kotoran Sapi Dan Ampas Tahu

Sinaga¹,

Suanggana²,

Haryono³

2022

JTT

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Biogas decomposes organic waste by bacteria through an anaerobic fermentation process that produces manageable methane gas. The purpose of this study was to determine the temperature, pressure, mass and flame duration of biogas produced from a mixture of cow dung and tofu waste liquid waste using a batch type digester. The digester uses a volume capacity of 30 liters with a volume of stuffing raw material as much as of the volume of the digester. This study uses three variations of the volume ratio of the mixture of cow dung and tofu waste liquid waste, namely S1 (50%: 50%), S2 (70%: 30%), and S3 (90%: 10%) with the addition of 2.5 liters of water for each variation. Data collection was carried out for 30 days at 11.00 WITA and 17.00 WITA. Based on the results of the study, it is known that the mixed variation of 50%: 50% is the best variation compared to the variations of 70%: 30%, and 90%: 10%. The results of the daily average environmental temperature variation of the S1 mixture are 30.19°C, and the average substrate temperature are 27.06°C. The average daily yield of biogas pressure are 0.039 bar with a total mass of biogas are 57.8 grams. Based on the measurement results of biogas flame duration comparasion with LPG on the total mass of biogas with the variation of the S1 mixture, it is obtained that biogas flame duration are 4.38 minutes while the combustion of LPG gas with the same total mass are 49 seconds.

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Section: Pendahuluanunclassified

Analisis Produksi Biogas Sebagai Energi Alternatif Pada Kompor Biogas Menggunakan Campuran Kotoran Sapi Dan Ampas Tahu

Sinaga¹,

Suanggana²,

Haryono³

2022

JTT

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“…The methane gas content produced from tofu industrial waste also varies. Adisasmito in his research, produced 56% Concentration and Flow Rate methane gas and 43% carbon dioxide gas [7]. While Harihastuti's research, the biogas digester produced a product containing around 46% methane gas, 30% carbon dioxide gas, and other gases, including ammonia, hydrogen sulfide and other gases [8], [9].…”

Section: Introductionmentioning

confidence: 99%

CO2 and H2S Absorption in Tofu Liquid Waste Biogas using Packed Bed Scrubber with Variation of MEA Concentration and Flow Rate

Putra,

Kalsum,

Hasan

2023

IJRVOCAS

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Biogas technology has become an alternative fuel that is often used in Indonesia. One of the raw materials for biogas that has the potential and is easy to obtain is waste from the tofu industry. Liquid waste still contains a lot of organic elements. The organic materials contained in the exhaust of the tofu industry are generally very high. The gases commonly found in tofu waste are nitrogen gas (N2), oxygen (O2), hydrogen sulfide (H2S), ammonia (NH3), carbon dioxide (CO2) and methane (CH4). These gases come from the decomposition of organic materials contained in wastewater. So that biogas produced from tofu liquid waste still contains CO2 and H2S gases which are quite high. Therefore, in this study the process of purification or refining of biogas products will be carried out using the absorption method through an absorber column using monoethanolamine (MEA) solution as a chemical absorbent through a 8 mm packed bed scrubber. The results showed that the best biogas flow rate in the purification process which produced the highest CH4 concentration of 95.12% was 40% MEA concentration and 0.8 L/min flow rate. The effect of MEA concentration on biogas purification causes the concentration of CO2 and H2S in the purified biogas to decrease as the MEA concentration increases. The best combination of 0.8 L/min biogas flow rate and 10 mm packing area reduces CO2 and H2S concentrations to 1.88% and 0 ppm.

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“…Due to the comparatively high processing costs, many tofu industries in Indonesia continue to dispose of untreated liquid effluent. Tofu industry costs must be reduced by enhanced waste treatment [3, [7][8][9][10][11]. The anaerobic process has an economic advantage in which the sludge produced is low so it does not need to pay for the handling of sludge caused by anaerobic reactors which is an immediate economic benefit [8,[12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Variations of Organic Loading Rate on Tofu Wastewater Degradation using Upflow Anaerobic Sludge Blanket Reactor by Modified Stover-Kincannon Model

Batubara¹,

Turmuzi²,

Irvan³

et al. 2023

IJE

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This research aims to examine the varians of organic loading rate (OLR) on degradation of tofu wastewater using the hybrid upflow anaerobic sludge blanket (hybrid UASB) reactor using the modified kinetic model of Stover Kincannon. This reactor was operated at OLRs variation of 1.5-12 kg COD m -3 d -1 and HRT of 12 -24 hours for 328 days. Higher COD removal efficiency of 86.41% and biogas production of 7700 mL were achieved at OLR 4.8 kg COD m -3 d -1 and HRT 24 hours on 140 days. Modified Stover-Kincannon model was observed and matched data sets were obtained. The kinetic values of model obtained at HRT variations, the parameters KB and μmax were 3.7, 12.97, 2.42 mgL -1 d -1 and 0.59, 9.41, 0.014 mgL -1 d -1 , respectively. This model was a plot of the inverse of the removal rate, versus inverse of the total loading rate resulted in a straight line. It showed that the Stover-Kincannon Model is the rate of substrate removal was affected by the organic load rate (OLR) that flowed into the hybrid UASB reactor.

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Anaerobic Reactor for Indonesian Tofu Wastewater Treatment

Cited by 10 publications

References 3 publications

Analisis Produksi Biogas Sebagai Energi Alternatif Pada Kompor Biogas Menggunakan Campuran Kotoran Sapi Dan Ampas Tahu

Analisis Produksi Biogas Sebagai Energi Alternatif Pada Kompor Biogas Menggunakan Campuran Kotoran Sapi Dan Ampas Tahu

CO2 and H2S Absorption in Tofu Liquid Waste Biogas using Packed Bed Scrubber with Variation of MEA Concentration and Flow Rate

Variations of Organic Loading Rate on Tofu Wastewater Degradation using Upflow Anaerobic Sludge Blanket Reactor by Modified Stover-Kincannon Model

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