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Energy Conversion of Industrial Wastewater on Microbial Fuel Cell (MFC)-Based with Biocatalysts and Pretreatments: A Review Suryawan, I Wayan Koko; Septiariva, Iva Yenis; Sarwono, Ariyanti
Indonesian Journal of Environmental Management and Sustainability Vol. 4 No. 4 (2020): December
Publisher : Research Centre of Inorganic Materials and Complexs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2020.4.4.102-109

The purpose of this review is to provide current information regarding industrial wastewater treatment with MFC technology with the addition of biocatalysts and pretreatments. Moreover, this review also updates industrial waste treatment technology with MFC technology in Indonesia. Waste could be generated from domestic activities as well as non-domestic activities, such as industries. Industries produce waste with quite high organic content. This organic material is not easily degraded in biological treatment. Wastewater treatment, currently, aims only to meet standards quality and not to reuse. In Indonesia, the reuse processes, one of which is still rarely found in the form of energy. Industries that can process and convert wastewater energy can help the government realize sustainable development in the energy sector. One of the technologies is the Microbial Fuel Cell (MFC). Previous MFC research that had been carried out was limited to laboratory scale with a volume of less than 1 L and, among them, used mixed or artificial waste. MFC processing uses anode in wastewater as a substrate source and generates electrons under anaerobic conditions. Electron formation could be accelerated by adding biocatalysts such as enzymes and specific microorganisms. The processing occurred in an anaerobic anode that could be increased by increasing the substrate's biodegradability value in the waste. The biodegradability value can be increased by pretreatment with ozone or ultrasonic technology. In Indonesia, research on industrial wastewater treatment with MFC as well as biocatalyst and pretreatment is still relatively minimal.

Design of Hazardous Waste Station in XYZ Port, Jakarta City Wibisono, Andhika Yoga; Kusumaningtyas, Disfiatri; Lahmadi, Salman Farid; Najwa, Alfiyah; Rachmantoro, Hafiz Arie; Sarwono, Ariyanti; Suryawan, I Wayan Koko
Civil and Environmental Science Journal (CIVENSE) Vol 3, No 2 (2020)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2020.00302.6

The design of the hazardous waste station is intended to adjust the security in the XYZ port area based on the fire and leakage possibility based on hazardous waste generation. The research method uses primary data, which is the measurements to determine the availability of land area, and secondary data to determine the generation amount and solid waste characteristics. The design of the hazardous waste station began with field observations to measure the land availability, then collected secondary data to know the volume type, volume, characteristics, and dimensions of hazardous waste collection. The composition of hazardous wastes based on the solid waste characteristics is flammable (20%), flammable and toxic (56%), toxic (23%), and corrosive (1%). The result found that the recommended dimension of the hazardous waste station is 11m x 8m.Â The total area of ventilation needed is 8m2. The light source of a hazardous waste station is recommended to have 40 Watts of power and each Armature has 2 lights. The container dimensions for leakage prevention are 2m x 2m x 0.6 m with a freeboard of 0.3 m. The fire extinguisher with a range of 12 m

YOUTUBE SEBAGAI MEDIA PEMBELAJARAN PENCEGAHAN DAMPAK PENYEBARAN VIRUS COVID19 Sarwono, Ariyanti; Ridhosari, Betanti; Sholikhah, Imroatus; Suryawan, I Wayan Koko
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol 7, No 1 (2021)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ja.v7n1.p119-124

Anak-anak merupakan salah satu masyarakat yang rentan terhadap penularan virus selama pandemi COVID-19. Mencegah hal tersebut maka dilakukan pemberian edukasi ke masyarakat berupa penyuluhan melalui media YouTube. Tujuan dari penyuluhan ini adalah memberikan edukasi protocol kesehatan dalam menanggulangi virus COVID-19 dan pengurangan dampak lingkungan yang dikususkan kepada masyarkaat sasar. Masyarakat sasar dalam penyuluhan ini adalah anak-anak (n= 34) yang berada dalam kelompok program temani aku belajar Universitas Pertamina. Hasil pemberian video layanan masyarakat anak-anak sudah melakukan protocol kesehatan seperti mencuci tangan, menggunakan masker, dan membuang sampah masker dengan baik. Kebiasaan bermain diluar rumah masih menjadi masalah anak-anak sehingga hal ini perlu ditekan.

Reactive Black 5 (RB5): Pengolahan Air Limbah Tekstil dengan Adsorbsi Menggunakan Powdered Karbon Aktif Septiariva, Iva Yenis; Suryawan, I Wayan Koko; Sarwono, Ariyanti
Jurnal Teknologi Lingkungan Vol. 22 No. 2 (2021)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

ABSTRAK Umumnya,Â industri tekstil menggunakan berbagai pewarna sintetis yang menghasilkan air limbah yang sangat berwarna. Oleh karenaitu,Â airÂ limbah tekstil ini harus diolah sebelum dibuang ke lingkungan. Penelitian ini bertujuan untuk mengetahui penyisihanÂ warna dengan teknik adsorpsi menggunakan karbon aktif. Metode ini dianggap sebagai teknologi berbiaya rendah dan perawatan yang mudah untuk pengolahan air limbah. Proses adsorpsi batchÂ dilakukan dengan waktu kontak yang berbeda yaitu 5â€“60 menit dan variasi konsentrasi awal yang mengandung Reactive Black 5 (RB-5) sebesar 5 mg/L; 10 mg/L; 15 mg/L; dan 20 mg/L. Azo-Reactive Black-5 adalah material pewarna yang digunakan untuk membuat air limbah artifisial. Hasil penelitian menunjukkan bahwa proses adsorpsi menurunkan kadar konsentrasi warna masing-masing sebesar 86,21%, 85,21%, 84,29%, dan 71,07% selama 60 menit. Peningkatan konsentrasi zat warna dalam air limbah menyebabkan efisiensi penghilangan warna yang rendah. Selain itu, penelitian mengevaluasi efektivitas adsorpsi batchÂ oleh karbon aktif karena efisiensi penghilangan warna dapat mencapai lebih dari 50% setelah waktu kontak 30 menit. Hal ini terlihat pada konsentrasi awal 5 mg/L dan 20 mg/L dengan efisiensi penyisihan sebesar 66,18% dan 53,97%. Kinetika adsorpsi yang sesuai untuk pendekatan pemodelan pada penelitian ini adalah Langmuir isotherm dengan nilai r2Â yang lebih besar dan mendekati nilai 1 yaitu 0,9756.Â Estimasi kapasitas adsorpsi maksimum yang diperoleh dari model sebesar 4,353 mg/g. Kata kunci: Air limbah tekstil, warna, adsorpsi, efisiensi penyisihan Â ABSTRACT Generally, the textile industry uses various synthetic dyes that produced a large amount of highly colored wastewater. This research aims to investigate the color removal by adsorption using powdered activated carbon. This method is considered viable due to cost effective and ease of maintenance for wastewater treatment. The batch adsorption process was carried out at different contact times of 5â€“60 minutes and varied initial dye concentration containing azo-Reactive Black 5 (RB-5) of 5 mg/L; 10 mg/L; 15 mg/L; and 20 mg/L. A synthetic RB-5 was prepared Â as the artificial wastewaterÂ to simulate the actual wastewater.Â The adsorption Â proceeded initially with higher ratesÂ andÂ gradually slowed down until reachedÂ a constant value due to the carbon surface's saturation with increasing contact time.The results showed that, at different initial dye concentration, the adsorption process decreased color concentration for 60 minutesÂ by 86.21%, 85.21%, 84.29%, and 71.07% respectively. The increase of initial dye concentration lowers color removal efficiency. Besides, the effectiveness of adsorption by activated carbon was found more than 50% after 30 minute of contact time. The efficiency removal presented initial concentration of 5 mg/ and 20 mg/L was 66.18% and 53.97%, respectively. Langmuir and Freundlich isotherm were also plotted to assess the kinetics of adsorption. Langmuir isotherm gave the best modelling approach for adsorption kinetics asÂ indicated by higher coefficient of determination (r2) of 0.9756. An estimated maximum adsorption capacity obtained from the model was 4.353 mg/g. Keywords: Textile wastewater, color, adsorption, removal efficiency

Youtube Sebagai Media Pembelajaran Pencegahan Dampak Penyebaran Virus COVID-19 Sarwono, Ariyanti; Suryawan, I Wayan Koko
Adi Widya : Jurnal Pengabdian Masyarakat Vol 5 No 2 (2021): ADI WIDYA Jurnal Pengabdian Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33061/awpm.v5i2.5254

Anak-anak merupakan salah satu masyarakat yang rentan terhadap penularan virus selama pandemi COVID-19. Mencegah hal tersebut maka dilakukan pemberian edukasi ke masyarakat berupa penyuluhan melalui media YouTube. Tujuan dari penyuluhan ini adalah memberikan edukasi protocol kesehatan dalam menanggulangi virus COVID-19 dan pengurangan dampak lingkungan yang dikususkan kepada masyarkaat sasar. Masyarakat sasar dalam penyuluhan ini adalah anak-anak (n= 34) yang berada dalam kelompok program temani aku belajar Universitas Pertamina. Hasil pemberian video layanan masyarakat anak-anak sudah melakukan protocol kesehatan seperti mencuci tangan, menggunakan masker, dan membuang sampah masker dengan baik. Kebiasaan bermain diluar rumah masih menjadi masalah anak-anak sehingga hal ini perlu ditekan. Abstrak Children are one of the communities that are vulnerable to transmission of the virus during the COVID-19 pandemic. To prevent this, education is provided to the public in the form of counseling through YouTube media. The purpose of this counseling is to provide knowledge on health protocols in overcoming the COVID-19 virus and reducing environmental impacts which are directed to target communities. The target communities in this counseling are children (n = 34) who are in the program group â€œTemani Aku Belajarâ€ at Universitas Pertamina. The results of the provision of community service videos showed that children have implemented health protocols such as washing hands, using masks, and disposing of mask waste properly. On the contrary, the habit of playing outside is still an issue for children, and this needs to be suppressed.

Substitution Garden and Polyethylene Terephthalate (PET) Plastic Waste as Refused Derived Fuel (RDF) Zahra, Nurulbaiti Listyendah; Septiariva, Iva Yenis; Sarwono, Ariyanti; Qonitan, Fatimah Dinan; Sari, Mega Mutiara; Gaina, Pratiwi Claudia; Ummatin, Kuntum Khoiro; Arifianti, Qurrotin Ayunina Maulida Okta; Faria, Niswatun; Lim, Jun-Wei; Suhardono, Sapta; Suryawan, I Wayan Koko
International Journal of Renewable Energy Development Vol 11, No 2 (2022): May 2022
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2022.44328

The generation of polyethylene terephthalate (PET) plastic and garden waste must be recycled to support the circular economy. An alternative way to reduce the plastics waste is to reduce this waste by converting it into energy such as Refused Derived Fuel (RDF) as an alternative for processing waste. Substitution of plastic and garden waste is an opportunity to be analyzed. Hence, This study aimed to investigate the potential for converting material substitution from PET and garden waste into RDF. The RDF characterized test method was carried out by proximate, water content, ash content, and analysis. At the same time, the calorific value. was tested by bomb calorimetry. Substitution of the mixture of plastic and garden waste affects each parameter of RDF pellet quality including water, ash, and caloric value (sig.< 0.05). The increase of plastic waste in pellets consistently increases the calorific value of RDF from 18.94 until 25.04 MJ/kg. The RDF pellet water and ash content also invariably affect the rate of increase in the calorific value of RDF in the multilinearity model (sig.<0.05; R2 is 0.935). The thermal stability of the pellets occurred at a temperature of 5000C decomposition of hemicellulose, cellulose, and lignin in mixed garden waste with plastic in RDF pellets. The decrease in the decomposition of PET into terephthalic acid monomer from the thermal stability of raw materials and waste PET plastic pellets occurs at a temperature of 4500ËšC. This potential finding can be used as a basis for consideration in regions or countries that have the generation of garden waste and plastic, especially the type of PET to be used as an environmentally friendly fuel.

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