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The Effect of Flow Rate of Adsorption Pretreatment in Removing Total Organic Carbon (TOC) Based on the SEM-EDX Test Praditya S. Ardisty Sitogasa; Syahrul Munir; Euis Nurul Hidayah; Masterina Sufiati Farid
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Adsorption is an accumulation of contact between gas or liquid molecules with a solid surface and some molecules attached to the surface. This study uses adsorption as a pretreatment of membrane processing. The adsorption process is affected by several factors, including the flow rate used in the adsorption process. This study aimed to determine the effect of water flow rate on the adsorption process in removing Total organic Carbon (TOC) using Calgon and Haycarb Adsorbent. The characteristics of the wastewater used are effluent of wastewater treatment from alcohol production that remains contains Total Organic Carbon (TOC). Variation of the flow rate used is 39 mL/minute, 29 mL/minute, and 23 mL/minute. The effect of flow rate on adsorption pretreatment in removing Total Organic Carbon (TOC) on Calgon adsorbent showed that 23 mL/minute was the most effective in reducing TOC values. On the other hand, using Haycarb absorbent on 23 mL/min flow rates was less effective in removing TOC values. The Haycarb adsorbent effectiveness is shown by the morphology of the initial and final results of EDX, where the adsorbent pore of Haycarb is not filled with absorbate.

Estimating Methane Emission from Floating Net Cage Fish Farming in Sutami Reservoir, Indonesia Syadzadhiya Qothrunada Zakiyayasin Nisa; Praditya Sigit Ardisty Sitogasa; Mohamad Mirwan
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Reservoirs are commonly used for aquaculture with floating net cage systems. The fish feed is not all eaten by the fish, so it is wasted to the bottom of the reservoir as uneaten feed. The organic content in the feed and the possibility of anaerobic conditions at the bottom of the reservoir waters can generate the decomposition process, which produces methane gas which is also a greenhouse gas. The floating net cages in the Sutami Reservoir, Indonesia, are about 173 ha in width, with the fish feed requirement of around 77.97 kg ha-1 day-1. Estimated uneaten feed and wasted to the bottom of the waters is about 2.3 g m-2 day-1, and methane gas emission from the feed waste is about 0.9 g m-2 day-1. This methane gas can contribute to methane gas in the atmosphere, so it is necessary to manage aquaculture, which has the potential to contribute methane gas as a greenhouse gas. Application of double nets on floating net cages can develop to attempt the reduction of feed waste in the fish farming system.

Plankton Diversity in a River Nearby Klotok Landfill, Kediri, East Java Restu Hikmah Ayu Murti; Thineza Ardea Pramesti; Isna Nugraha; Praditya Sigit Ardisty Sitogasa; Kabul Fadilah; Aussie Amalia; Muhammad Abdus Salam Jawwad
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2757

Landfill management in Indonesia is mostly operated by open dumping as well as the Klotok’s Landfill at Klotok Village, Kediri City. This landfill has three lands, and the third landfill is currently actively operating. The pollution is like the occurrence of leaks in leachate storage tanks which is near the Klotok river. That situation can make the leachate enter the river and affect the physicochemical conditions of the water which have an impact on decreasing the diversity and abundance of plankton. The diversity of plankton species in aquatic ecosystems is often used as an indicator to determine the primary productivity of waters and the condition of the aquatic ecosystem, so this research was carried out to determine the diversity of plankton species in the Klotok river, so the quality of the water can be known. This research was conducted in the Klotok River, Kediri City, East Java. Samples were taken upstream of the Klotok River, near the leachate treatment Plant, and downstream of the Klotok River. Samples were taken as much as 21 liters by pouring method. The samples are poured into plankton nets. The result shows that plankton diversity in the water body near Klotok landfill is between 0,49 to 0,67, which indicates that the diversity index according to Shannon-Wiener is 0,49 where the species diversity is low, the number of individual species is low, the ecosystem is unstable, and the waters are degraded.

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.

Commercialization of Campus Waste-Derived Product at UPN “Veteran” Jawa Timur Sitogasa, Praditya S. Ardisty; Rosariawari, Firra
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.2024.4120

Universitas Pembangunan Nasional (UPN) "Veteran" Jawa Timur is one of the state universities located in the Rungkut Madya-Gunung Anyar area, Surabaya, where various activities take place daily. Based on the types of activities, the sources of waste at UPN "Veteran" Jawa Timur are divided into two areas: waste from academic buildings, offices, and cafeterias, and waste from gardens and streets. About 70% of the waste generated by campus activities has the potential for recovery. Organic waste from garden sweeping, cafeterias, and other activities can be processed through composting. In addition to composting, there is currently another alternative method with better economic potential, one of which is turning it into eco-enzymes. Commercialization is understood as a process of developing new products from creative industries, making a product more valuable and commercially viable. In this article, commercialization is also understood as a comprehensive technology transfer process, starting from selecting raw materials for a product and continuing through the production process until the product is produced and reaches the end consumer. With the available and applicable processing technologies, it is hoped that this commercialization activity can assist in promoting the transformation of waste into furniture, home décor, and eco-enzymes by business groups. It includes designing commercial packaging for products and creating management and promotion schemes for processed campus waste products at UPN "Veteran" Jawa Timur.

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.

Commercialization of Campus Waste-Derived Product at UPN “Veteran” Jawa Timur Praditya S. Ardisty Sitogasa; Firra Rosariawari
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.2024.4120

Universitas Pembangunan Nasional (UPN) "Veteran" Jawa Timur is one of the state universities located in the Rungkut Madya-Gunung Anyar area, Surabaya, where various activities take place daily. Based on the types of activities, the sources of waste at UPN "Veteran" Jawa Timur are divided into two areas: waste from academic buildings, offices, and cafeterias, and waste from gardens and streets. About 70% of the waste generated by campus activities has the potential for recovery. Organic waste from garden sweeping, cafeterias, and other activities can be processed through composting. In addition to composting, there is currently another alternative method with better economic potential, one of which is turning it into eco-enzymes. Commercialization is understood as a process of developing new products from creative industries, making a product more valuable and commercially viable. In this article, commercialization is also understood as a comprehensive technology transfer process, starting from selecting raw materials for a product and continuing through the production process until the product is produced and reaches the end consumer. With the available and applicable processing technologies, it is hoped that this commercialization activity can assist in promoting the transformation of waste into furniture, home décor, and eco-enzymes by business groups. It includes designing commercial packaging for products and creating management and promotion schemes for processed campus waste products at UPN "Veteran" Jawa Timur.

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