Liquid Waste Processing of Tofu Industry for Biomass Production as Raw Material Biodiesel Production

Widayat, Widayat; Plilia, J.; Wibisono, J.

doi:10.1088/1755-1315/248/1/012064

Cited by 10 publications

(5 citation statements)

References 8 publications

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“…Limbah cair tahu mengandung gas-gas yang terdekomposisi bahan-bahan organik yang terdapat di dalam air buangan seperti gas nitrogen (N2), oksigen (O2), hidrogen sulfida (H2S), ammonia (NH3), karbondioksida (CO2) dan metana (CH4). Selain komponen gas, limbah cair tahu juga memiliki parameter-parameter seperti suhu, pH, COD, BOD, DO, dan TSS yang bisa menetukan kualitas limbah tersebut (Pagoray et al, 2021;Laksono Putro et al, 2021;Widayat et al, 2019).…”

Section: Pendahuluanunclassified

Studi Efektivitas Pemanfaatan Arang Aktif Cangkang Kelapa Sawit (Elaeis guineensis) Sebagai Adsorben Pengurangan Kadar Amonia Limbah Cair Tahu

Desfitri,

Arifanda,

Yulianti

et al. 2024

Eksergi

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Limbah cair tahu mengandung gas-gas yang terdekomposisi bahan-bahan organik yang terdapat di dalam air buangan seperti gas nitrogen (N2), oksigen (O2), hidrogen sulfida (H2S), ammonia (NH3), karbondioksida (CO2) dan metana (CH4). Penelitian sebelumnya menemukan bahwa kandungan ammonia pada limbah cair tahu berkisar antara 21,4 mg/L hingga 33,5 mg/L. Angka ini sangatlah tinggi jika dibandingkan dengan standar yang sudah ditetapkan oleh pemerintah yaitu sebesar 8 mg/L. Tujuan dari penelitian ini adalah untuk mengurangi pencemaran lingkungan yang disebabkan oleh ammonia yang berasal dari limbah cair tahu dan mengoptimalkan pemanfaatan limbah cangkang kelapa sawit. Pengurangan kadar ammonia ini dilakukan dengan metode adsorbsi, sedangkan metode analisis kadar ammonia menggunakan spektrofotometri. Arang aktif cangkang kelapa sawit diaktivasi menggunakan larutan H2SO4. Variasi waktu kontak yang digunakan adalah 30, 60, 90 dan 120 menit, sedangkan variasi massa adsorben adalah 2, 4, 6 dan 8gram. Hasil penelitian menunjukkan kondisi optimal untuk proses adsorpsi ammonia adalah 30 menit waktu kontak dengan 4gram jumlah arang aktif. Hasil karakterisasi menunjukkan bahwa arang aktif memenuhi standar kualitas dan cocok untuk mengurangi kadar ammonia dalam limbah cair tahu. Hasil penelitian ini dapat diaplikasikan untuk pemanfaatan limbah cangkang kelapa sawit untuk penurunan konsentrasi ammonia pada limbah cair tahu. Kata Kunci: limbah tahu; cangkang kelapa sawit; adsorbsi; ammonia ABSTRACT: Tofu liquid waste contains gases that are decomposed organic materials found in air waste such as nitrogen gas (N2), oxygen (O2), hydrogen sulfide (H2S), ammonia (NH3), carbon dioxide (CO2), and methane (CH4). In previous research, the ammonia concentration in tofu liquid waste was found very high, ranging from 21.4 mg/L to 33.5 mg/L. This figure is very high when compared to the standard set by the government, namely 8 mg/L. This research aims to reduce environmental pollution caused by ammonia originating from liquid tofu waste and optimize the utilization of palm oil shell waste. Reducing ammonia levels is carried out using the adsorption method. In this research, activated charcoal was activated using an H2SO4 solution. The research results showed that activated charcoal was effective in reducing ammonia levels in tofu liquid waste. The optimal conditions for the ammonia adsorption process are 30 minutes of contact time with 4 grams of activated charcoal. The characterization results show that activated charcoal meets quality standards and is suitable for reducing ammonia levels in tofu liquid waste. The results of this research can be applied to reduce the ammonia concentration in tofu liquid waste and utilization of palm shells.

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Section: Pendahuluanunclassified

Studi Efektivitas Pemanfaatan Arang Aktif Cangkang Kelapa Sawit (Elaeis guineensis) Sebagai Adsorben Pengurangan Kadar Amonia Limbah Cair Tahu

Desfitri,

Arifanda,

Yulianti

et al. 2024

Eksergi

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“…This occurs as the increase in the tofu wastewater concentration is proportional to the carbon content in the cultivation medium. Higher ratios of carbon and nitrogen result in higher lipids of microalgae (Widayat et al, 2018). The carbon element is absorbed by microalgae, supported by oxygen.…”

Section: Carbohydrate Protein and Lipid Contentmentioning

confidence: 99%

Does Tofu Wastewater Conversions Nutrient Increase the Content of the <i>Chlorella pyrenoidosa</i>?

Musa¹,

Arsad²,

Sari³

et al. 2021

J. Ecol. Eng.

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This study aims to analyze the lipid, carbohydrate and protein content of Chlorella pyrenoidosa after being treated with the tofu wastewater. The method used in this study was an experimental method with 4 treatments and 3 replications. The treatment was performed by administering different concentrations of the tofu wastewater to the C. pyrenoidosa. The concentrations used were 10%, 15% and 20%. Determination of these concentrations was based on the preliminary test. The main parameters observed were the lipid, carbohydrate and protein content of C. pyrenoidosa and the supporting parameters were the growth rate, doubling time and characteristics of the tofu wastewater. The study was conducted for 8 days using the batch culture method. In the exponential phase, the microalgae were harvested and then their contents were analyzed. The data obtained were analyzed using MS Office Excel 2016. The highest content of lipid, carbohydrate and protein of C. pyrenoidosa was in the treatment of 20% tofu wastewater, reaching 1.56%; 28.92%; and 28.92%, respectively. Meanwhile, the highest growth rate and the smallest doubling time in the treatment of 20% tofu wastewater accounted for 0.8264 day -1 and 0.0349 hours -1 . Moreover, the rates of BOD and TSS of the tofu wastewater at the end of the study decreased. It can be concluded that administering different concentrations of the tofu wastewater can affect the lipid, carbohydrate and protein content of C. pyrenoidosa. It was suggested that further research is needed to conduct semi-continuous cultivation of C. pyrenoidosa using a higher density so that the results obtained can be optimized.

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“…Indonesia merupakan salah satu produsen tahu yang cukup produktif baik pada skala rumahan maupun industri besar, dengan jumlah industri mencapai 84.000 unit (Widayat et al 2019). Dalam setahun rata-rata jumlah limbah cair tahu yang dihasilkan di Indonesia sebanyak 57.942 x 10 10 kilogram, dengan tingkat konsumsi tahu di Indonesia mencapai 7,4 kg/orang/tahun (Dianursanti et al 2014).…”

Section: Latar Belakangunclassified

Bioenergi Pedesaan: Solusi Konflik Sosial Ekologi dan Pembangunan Berkelanjutan

Irawan¹,

Dharmawan²,

Sumarti³

2020

J. Ilmu Lingk.

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Penelitian ini bertujuan menganalisis sebuah resolusi konflik antara petani vs industri tahu berupa pengolahan bioenergi limbah tahu. Penelitian ini menggunakan metode campuran dengan pengambilan data melalui wawancara mendalam, kuesioner dan observasi. Hasil penelitian ini menunjukkan bahwa konflik yang terjadi antara kelompok industri tahu vs kelompok petani berupa konflik laten. Pemicu terjadinya konflik disebabkan oleh limbah cair tahu yang mencemari lingkungan dan merusak lahan pertanian. Lahirnya resolusi konflik berupa pengolahan bioenergi memberikan tiga keuntungan; Pertama secara sosial, yaitu meredam konflik antara petani dengan industri tahu. Kedua, keuntungan secara ekologi, yaitu mengurangi pencemaran lingkungan. Ketiga, keuntungan secara ekonomi, yaitu memberikan keuntungan kepada petani dan industri tahu.

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Liquid Waste Processing of Tofu Industry for Biomass Production as Raw Material Biodiesel Production

Cited by 10 publications

References 8 publications

Studi Efektivitas Pemanfaatan Arang Aktif Cangkang Kelapa Sawit (Elaeis guineensis) Sebagai Adsorben Pengurangan Kadar Amonia Limbah Cair Tahu

Studi Efektivitas Pemanfaatan Arang Aktif Cangkang Kelapa Sawit (Elaeis guineensis) Sebagai Adsorben Pengurangan Kadar Amonia Limbah Cair Tahu

Does Tofu Wastewater Conversions Nutrient Increase the Content of the <i>Chlorella pyrenoidosa</i>?

Bioenergi Pedesaan: Solusi Konflik Sosial Ekologi dan Pembangunan Berkelanjutan

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