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Pengaruh Jenis Anoda Microbial Fuel Cells Terhadap Power Density dan Penyisihan Kandungan Organik Limbah Cair Industri Tahu M. Ardiansyah Dwi Tama M. Ardiansyah Dwi Tama; Yayok Suryo Purnomo Yayok Suryo Purnomo; Syadzadhiya Qothrunada Zakiyayasin Nisa' Syadzadhiya Qothrunada Zakiyayasin Nisa'
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Tofu industry production activities generate wastewater from soy milk coagulation and moulding processes. The high content of organic compounds in tofu industry wastewater, including COD, requires treatment before discharge into water bodies. The high organic content in this wastewater can be used as a substrate in MFC systems. This research aims to analyse the effect of different anode types in the combination of MFCs-ABR reactors on the power density (mW/m²) and COD removal efficiency of tofu industry wastewater. The research method is quantitative, starting with seeding and acclimatization for 21 days, and then analysing the effect of graphite carbon and stainless steel anodes on the performance of MFCs-ABR reactors with different retention times of 24, 48, 72, 96 hours. The results showed that the graphite carbon anode produced the highest power density of 204.13 mW/m² and COD removal efficiency of 60.42% at a retention time of 96 hours.

Comparison of DAF Pretreatment between Static Mixer and Impeller Mixer for Oil and Grease Reduction Novembrianto , Rizka; Rosariawari, Firra; Cahyonugroho, Okik Hendriyanto; Nisa', Syadzadhiya Qothrunada Zakiyayasin; Sitogasa, Praditya Sigit Ardisty; Murti, Restu Hikmah Ayu
Nusantara Science and Technology Proceedings 8th International Seminar of Research Month 2023
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2024.4107

The problem of domestic wastewater originating from restaurants is the largest contributor to organic wastewater in urban waters. Among them are waste water parameters, namely oil, and grease. Oils and grease are compounds that do not dissolve easily in water. However, it can be dissolved with non-polar organic solvents. The carbon chains of oils and grease are also long. So, it is difficult to decompose and takes a long time if processing uses the help of microorganisms. So, the alternative is to use physical-chemical processing. In this research, we tried using a static mixer and an impeller mixer. We conducted a systematic review of DAF techniques in wastewater treatment. We reviewed six indexed databases namely dissolved air flotation, microbubbles, wastewater treatment, and key operational and design parameters involved in the effectiveness of the flotation process. In this pre-treatment, the focus is on the withdrawal/discharge speed in collecting wastewater as a test and the effectiveness of mixing wastewater with coagulants and air pressure. These three aspects are used in equilibrium to achieve the optimum dose for the static mixer use scheme. Meanwhile, the impeller mixer scheme uses rotational speed in mixing with the coagulant, contact time, and Reynolds number to achieve the required turbulence. Apart from that, the use of electrical energy in the pump is also calculated in these two schemes. The results obtained were the amount of weight of oil and grease collected in the static mixer pretreatment of 9.12% w/v and the impeller mixer of 7.63% w/v and the results of the organic content of the Chemical Oxygen Demand (COD) parameter for the static mixer were 86.92 % and mixer impeller 78.86 %. From these results, static mixers have advantages over using impeller mixers in terms of the effectiveness of the oil and grease reduction process.

Treatment of Laundry Wastewater Using Different Coagulants: Alum and HCA Nisa', Syadzadhiya Qothrunada Zakiyayasin; Novembrianto , Rizka; Rosariawari, Firra; Rhomadhoni, Muslikha Nourma; Azzahra, Maulayya Fatimah
Nusantara Science and Technology Proceedings 8th International Seminar of Research Month 2023
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2024.4119

The wastewater from industrial laundries has a high quantity of contaminants from the washing process, as well as chemical additives. The current study assessed the efficacy of the coagulation/occultation/sedimentation (C/F/S) method to treat laundry wastewater in relation to physicochemical parameters of water quality with the goal of treating this type of wastewater. For this purpose, an experimental design was applied to the C/F/S step using the addition of coagulant Alum, coagulant Alum plus flocculant Superfloc, and coagulant HCA. Alum coagulant has removal efficiency of 52% for COD and 37% for phosphate. The use of alum coagulant and Superfloc flocculant produces COD removal efficiency of 60% and phosphate removal efficiency of 58%. The use of HCA coagulant shows a removal efficiency of 64% for COD and 78% for phosphate. This shows that using more HCA coagulant is more effective than using alum coagulant and Superfloc flocculant in laundry wastewater treatment.

Comparison of DAF Pretreatment between Static Mixer and Impeller Mixer for Oil and Grease Reduction Rizka Novembrianto; Firra Rosariawari; Okik Hendriyanto Cahyonugroho; Syadzadhiya Qothrunada Zakiyayasin Nisa'; Praditya Sigit Ardisty Sitogasa; Restu Hikmah Ayu Murti
Nusantara Science and Technology Proceedings 8th International Seminar of Research Month 2023
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2024.4107

The problem of domestic wastewater originating from restaurants is the largest contributor to organic wastewater in urban waters. Among them are waste water parameters, namely oil, and grease. Oils and grease are compounds that do not dissolve easily in water. However, it can be dissolved with non-polar organic solvents. The carbon chains of oils and grease are also long. So, it is difficult to decompose and takes a long time if processing uses the help of microorganisms. So, the alternative is to use physical-chemical processing. In this research, we tried using a static mixer and an impeller mixer. We conducted a systematic review of DAF techniques in wastewater treatment. We reviewed six indexed databases namely dissolved air flotation, microbubbles, wastewater treatment, and key operational and design parameters involved in the effectiveness of the flotation process. In this pre-treatment, the focus is on the withdrawal/discharge speed in collecting wastewater as a test and the effectiveness of mixing wastewater with coagulants and air pressure. These three aspects are used in equilibrium to achieve the optimum dose for the static mixer use scheme. Meanwhile, the impeller mixer scheme uses rotational speed in mixing with the coagulant, contact time, and Reynolds number to achieve the required turbulence. Apart from that, the use of electrical energy in the pump is also calculated in these two schemes. The results obtained were the amount of weight of oil and grease collected in the static mixer pretreatment of 9.12% w/v and the impeller mixer of 7.63% w/v and the results of the organic content of the Chemical Oxygen Demand (COD) parameter for the static mixer were 86.92 % and mixer impeller 78.86 %. From these results, static mixers have advantages over using impeller mixers in terms of the effectiveness of the oil and grease reduction process.

Organic Waste Treatment Optimization Design Planning Using Simultaneous Composting Technology with EM4 and MOL at Universitas Pembangunan Nasional “Veteran” Jawa Timur Euis Nurul Hidayah; Rizka Novembrianto; Firra Rosariawari; Syadzadhiya Qothrunada Zakiyayasin Nisa; Mohamad Sholikin; Azizah Mahirah Rizki; Putri Redita Rositasari
Nusantara Science and Technology Proceedings 8th International Seminar of Research Month 2023
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2024.4118

Universitas Pembangunan Nasional “Veteran” Jawa Timur is one of the public facilities that produces solid waste, including organic waste, inorganic, and hazardous waste. Waste that can be immediately utilized is organic waste consisting of food waste and leaves and twigs. Therefore, appropriate technology is needed to process organic waste into more useful goods and as a better management alternative through community service. One of the alternatives for processing waste is recycling it into compost using Simultaneous Composting Technology with EM4 and MOL. The main target of this community service is to reduce waste and utilize university waste with appropriate technology for regional coverage and national coverage in the future. The method of this community service is to separate waste between organic and non-organic, selected organic waste is cut by a hammer mill, and then other waste from the canteen activity is made Local Microorganisms (MOLs) as the decaying medium in the composite production of the organic garbage processing device reactor. As a result, this community service has been running smoothly and well. The results of this community service have a positive impact through the use of organic waste into compost which can be utilized by the internal campus and generate economic value.

Treatment of Laundry Wastewater Using Different Coagulants: Alum and HCA Syadzadhiya Qothrunada Zakiyayasin Nisa'; Rizka Novembrianto; Firra Rosariawari; Muslikha Nourma Rhomadhoni; Maulayya Fatimah Azzahra
Nusantara Science and Technology Proceedings 8th International Seminar of Research Month 2023
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2024.4119

The wastewater from industrial laundries has a high quantity of contaminants from the washing process, as well as chemical additives. The current study assessed the efficacy of the coagulation/occultation/sedimentation (C/F/S) method to treat laundry wastewater in relation to physicochemical parameters of water quality with the goal of treating this type of wastewater. For this purpose, an experimental design was applied to the C/F/S step using the addition of coagulant Alum, coagulant Alum plus flocculant Superfloc, and coagulant HCA. Alum coagulant has removal efficiency of 52% for COD and 37% for phosphate. The use of alum coagulant and Superfloc flocculant produces COD removal efficiency of 60% and phosphate removal efficiency of 58%. The use of HCA coagulant shows a removal efficiency of 64% for COD and 78% for phosphate. This shows that using more HCA coagulant is more effective than using alum coagulant and Superfloc flocculant in laundry wastewater treatment.

EDUKASI PEMILAHAN SAMPAH DAN PEMBUATAN ECO ENZYME Syadzadhiya Qothrunada Zakiyayasin Nisa; Restu Hikmah Ayu Murti; Praditya Sigit Ardisty Sitogasa; Gertrurte Clarisa Eleora Novelia; Savira Fevilia
Environmental Engineering Journal of Community Dedication Vol. 2 No. 2 (2023): Jurnal Environation
Publisher : Teknik Lingkungan Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/environation.v2i2.3

Permasalahan sampah masih menjadi permasalahan umum di Indonesia dan menjadi konflik berkepanjangan. Peningkatan jumlah penduduk dan terbatasnya pengolahan sampah menyebabkan timbulan sampah terus menumpuk dan menyebabkan permasalahan lingkungan. Jenis sampah yang mendominasi di Tempat Pembuangan Akhir (TPA) yaitu sampah organik yang dihasilkan dari rumah tangga. Sampah organik berdampak buruk bagi kesehatan manusia apabila dibiarkan menumpuk dan membusuk. Sampah perlu dilakukan pemilahan untuk memudahkan pengolahan tiap jenis sampah. Salah satu pengolahan sampah organik yang dapat dilakukan yaitu dengan pembuatan eco enzyme. Eco enzyme merupakan hasil fermentasi bahan organik, sehingga sampah organik dapat digunakan sebagai bahan baku. Manfaat eco enzyme berguna bagi lingkungan karena dapat mengurangi timbulan sampah organik, dan dari proses fermentasinya menghasilkan gas O3 (ozon) yang dapat mengurangi gas rumah kaca. Eco enzyme juga dapat digunakan sebagai pupuk cair dan cairan pembersih. Kegiatan ini bertujuan untuk mengimplementasikan konsep penanganan sampah organik skala rumah tangga melalui pembuatan eco enzyme. Kegiatan dilakukan melalui sosialisasi pemilahan sampah dan pelatihan pembuatan eco enzyme. Hasil dari kegiatan ini memberikan dampak positif dimana masyarakat mengetahui pentingnya pemilahan sampah serta mengetahui cara mengolah dan memanfaatkan sampah organik yang dihasilkan rumah tangga.

Interpretative Structural Modeling Dalam Analisis Kelembagaan Pengendalian Kualitas Air Waduk Sutami Nisa', Syadzadhiya Qothrunada Zakiyayasin; Sitogasa, P. S. Ardisty; Fadila, Kabul; Munir, Syahrul
Jurnal EnviScience (Environment Science) Vol. 6 No. 1 (2022)
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/jev.v6i1.335

The Sutami Reservoir, located in Malang Regency, East Java, has moderate to severe levels of pollution. This pollution problem can reduce the water quality of the Sutami Reservoir, so it requires coordination from the agencies concerned to formulate water pollution control policies. The management agency for the Sutami Reservoir is the â€˜Perum Jasa Tirta 1â€™ (PJT 1). The institutional analysis applied is the Interpretative Structural Modeling (ISM) method, to find out which agencies are key elements/factors. There are eleven agencies analyzed. Agencies that are included in the â€˜Dependentâ€™ sector are the Water Resources Public Works Office, the Tourism and Culture Office, the Livestock and Animal Health Office, the Population Control and Family Planning Office, and the rice farmer groups. Institutions in the â€˜Linkageâ€™ sector are the Food Crops, Horticulture, and Plantations Office and the Industry and Trade Office. Institutions in the â€˜Independentâ€™ sector that play a key role are the Environment Office, the Fisheries Office, Balai Besar Wilayah Sungai Brantas, and the floating net cage fish farmer group. These four agencies are the key elements that have a big driving power so that more in-depth coordination needs to be carried out for the formulation of policies and regulations for water quality control.

Tofu Wastewater Treatment and Bioelectricity Production Potential by Combining Anaerobic Baffled Reactor and Microbial Fuel Cells Nisa', Syadzadhiya Qothrunada Zakiyayasin; Murti, Restu Hikmah Ayu; Ni'am, Achmad C.; Sitogasa, Praditya Sigit Ardisty; Wibowo, Elysia C.
Envirotek : Jurnal Ilmiah Teknik Lingkungan Vol. 17 No. 1 (2025): Envirotek: Jurnal Ilmiah Teknik Lingkungan
Publisher : Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/envirotek.v17i1.2050

Anaerobic Baffled Reactor (ABR) systems have only been utilized to reduce pollutant compounds in wastewater. Anaerobic conditions in ABR can double as an anode chamber in Microbial Fuel Cells (MFCs) which require anaerobic conditions. This study aims to test the ability of COD and TSS removal in tofu wastewater and the potential electricity generated from a combination unit of ABR and MFCs. The experiment was conducted on a laboratory scale using a continuous system for 96 hours. ABR reactor was made consisting of 5 compartments, where the second compartment was installed anode for MFCs. The cathode chamber of the MFCs system was made separate from the ABR reactor and filled with electrolyte solution. The anode chamber in the ABR and the cathode chamber are connected by a salt bridge. Electrodes used in MFCs are zinc as anode and copper as cathode. The removal of pollutants in tofu wastewater reached 55.85% for COD and 88.68% for TSS. The electrical potential of MFCs increases along with the increase of organic matter removal in wastewater. The electric voltage generated reached 0.94 V and electric current 0.40 mA. The power density generated in this MFCs system reached 94 mW/m².

PENDAMPINGAN KEGIATAN RUMAH SAKIT UMUM DAERAH DI PROVINSI JAWA TIMUR DALAM PENYIMPANAN, PENGELOLAAN, DAN PENGEMASAN LIMBAH BAHAN BERBAHAYA DAN BERACUN (B3) Nisa', Syadzadhiya Qothrunada Zakiyayasin; Sitogasa, Praditya Sigit Ardisty; Murti, Restu Hikmah Ayu; Jawwad, Muhammad Abdus Salam; Putri, Marsanda Amelia; Fachrudin, Rizal
Environmental Engineering Journal of Community Dedication Vol. 5 No. 2 (2025): Jurnal Environation
Publisher : Teknik Lingkungan Universitas Pembangunan Nasional "Veteran" Jawa Timur

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Hospital hazardous waste (B3) management is crucial to avoid negative impacts on health and the environment. This community engagement aimed to improve B3 waste handling capacity in a regional hospital in East Java. Activities included site observation, technical discussions, SOP development, labeling training, and digital reporting via the Festronik system. Observations revealed issues in waste labeling, characterization, and logbook documentation. Interventions successfully improved labeling according to waste properties, developed technical SOPs, and fulfilled storage requirements based on Government Regulation No. 22 of 2021 Article 419 paragraph (4). Enhancements such as emergency response tools and updated signage further supported safe and compliant waste management. This program is expected to strengthen sustainable B3 waste governance in the healthcare sector.

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