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Nusantara Science and Technology Proceedings
Published by Future Science
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Arjuna Subject : Ilmu Ekonomi, Ekonometrika dan Keuangan (semua kategori) - Ilmu Ekonomi, Ekonometrika dan Keuangan (Lain-Lain)
Articles 52 Documents
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Search results for , issue "2nd International Conference Eco-Innovation in Science, Engineering, and Technology" : 52 Documents clear
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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Abstract

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.
Plankton Diversity in the Coastal Waters at Klumpang Beach, East Nusa Tenggara, Indonesia Muhammad Abdus Salam Jawwad; Hafidya Norista Pramesti; Restu Hikmah Ayu Murti
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

Planktons represent aquatic organisms that float in the water with relatively passive movement. In ecological function, the distribution of biomass and the species composition of plankton have essential effects on the primary and initial producers of chains in food webs. To preserve nature and biota in the estuary area, monitoring plankton as a bioindicator is necessary. This research aims to study the abundance and diversity of planktons as a bioindicator in the Klumpang beach estuarine region of Labuan Bajo, NTT province, Indonesia. In addition, it also examines the quality of the waters and the level of water pollution based on the diversity index and dominance index. Klumpang beach shoreline has a medium diversity index, adequate productivity level, balanced ecosystem, and medium ecological pressure. The three sampling points have a Shannon-Wiener diversity index of 2.122, 1.509, and 2.296 by sequence. Calothrix sp. becomes the most abundant phytoplankton can be found in all examined sampling points, which indicates a good productivity level and warm temperature of the water. However, the species' unbalanced distribution may indicate an unstable ecosystem in the shoreline, as the impact of surrounding activities.
Electrocoagulation Process to Reduce Microplastic in Wonokromo Surface Water Firra Rosariawari; Tuhu Agung Rachmanto; Mohamad Mirwan; Dila Rahmayanti
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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The abundance of microplastics in Surabaya's surface water can disrupt the sustainability of river ecosystems and harm humans because most of the raw water used by the people of Surabaya comes from surface water. Microplastics less than 5µm in size contain harmful chemicals such as Polychlorinated Biphenyls (PCBs) and are toxic. One alternative treatment is to reduce the levels of microplastics in the electrocoagulation process. Electrocoagulation is the process of clotting and deposition of fine particles in water using electrical energy. Microplastics contained in the water are removed through flocculation and deposition processes. This study aims to determine the effectiveness of the electrocoagulation process on reducing microplastic levels. The variables of this experiment are the distance of the electrodes (1.5 cm, 2 cm; 3 cm, and 5 cm), and the detention time (15 minutes, 25 minutes, 30 minutes, 45 minutes). This research was set up by using a reactor with a volume of 5 liters and a settling time of 30 minutes.
Sequencing Batch Reactor-Continuous Flow Effectiveness For Treating Restaurant Wastewater Mochammad Yusuf Cahayaning Nugraha B; Novirina Hendrasarie
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Wastewater produced by untreated restaurants can increase the COD, BOD, TSS, and grease in water content. Household wastewater treatment only uses a grease trap, so it does not meet the quality standards requirement. For this reason, a unit performance evaluation is required. One technology that can improve wastewater quality from grease trap treated wastewater uses a biological process called Sequencing Batch Reactor (SBR). This research is about processing the output of grease trap waste from Padang restaurants using the Sequencing Batch Reactor Continuous Flow unit. C ontinuous influent flow reactor is used in this research. The processed sequentially but discarded intermittently. This study aims to determine the performance of SBR-CF in reducing the content of COD, TSS, Total N, and PO4. SBR-CF was operated with hydraulic retention time (HRT), and the aeration rate varied, which were 12, 24, 36, and 48 hours and aeration rates of 7 L/min and 14 L/min. The results showed that the optimum HRT and aeration rates were 24 hours and 14 L / minute. With the efficiency of removal of COD, TSS, Total N, and PO4 produced respectively 96.9%; 98.63%; 86.72%; and 55,6%
A Systematic Review: Down-flow Hanging Sponge Application for Wastewater Treatment Technology Kyky Fadhila Cindya Putri; Aulia Ulfah Farahdiba; Munawar Ali
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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To reduce waste water pollution in Indonesia, it is necessary to conduct renewable research. One of the studies designed as an energy-efficient and easy-to-maintain alternative is the downflow hanging sponge (DHS). DHS has been studied in various countries and is being developed. from some of these studies will be summarized in this paper about the mechanism of the dhs process, the microorganisms formed in dhs, and the factors that affect the performance of dhs.
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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Abstract

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.
Cleaner Production Strategy As A Supporting Analysis of Environmental Impact on Drinking Water Treatment Process Using Life Cycle Assessment Approach Aulia Ulfah Farahdiba; Geafiata Amalia Nurbaiti; Tuhu Agung Rachmanto
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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The Drinking Water Treatment Plant has an impact on the environment due to its production process. This emerging impact can be studied strategically by carrying out the concept of cleaner production. Cleaner production is an integrated environmental management effort in a series of product life cycles. The output of this concept is to provide alternative management that is environmentally friendly. The principle of cleaner production is in line with the Life Cycle Assessment. This study examines data on drinking water treatment plants to provide certainty before being analyzed using Life Cycle Assessment (LCA). LCA is an approach method that can be used to identify and analyze environmental impacts resulting from all stages of the product life cycle to know which parts have the greatest impact on the environment.
Characterization of Organic Fraction Produced by Spirulina platensis in Oxidation Ditch Reactor Fairuz Khurotul Aini; Valentino Rizkiar Pradana; Euis Nurul Hidayah; Okik Hendriyanto Cahyonugroho
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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The biggest source of river water pollution is domestic wastewater, about 60-70% with 6.1% treatment and 40% of the pollution comes from industry or others and is exacerbated by the uncontrolled algae growth. The diversity of algal organic matter (AOM) in domestic wastewater causes several problems in water treatment. Fluorescence Excitation Emission Matrix (FEEM) has been widely used to determine the structural and compositional characteristics of molecules. The purpose of this study was to determine the characteristics of the AOM fraction produced by the microalgae Spirulina platensis using FEEM. The peak percentage of EEM and the Fluorescence Regional Index (FRI) was used to represent the substance contained in the sample. The results showed the microalgae Spirulina platensis identified as containing fraction aromatic protein-like, fulvic acid-like, soluble microbial product-like, and humic acid-like where the percentage of FRI of each fraction fluctuates due to internal factors such as microbial carbon sources and external factors such as temperature and oxygen supply.
The Effect of pH Values on Suspended Microorganisms Growth in Tofu Wastewater Treatment Restu Hikmah Ayu Murti; Rizka Novembrianto; Firra Rosariawari; Munawar Ali
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Tofu industry produces the waste that contains a lot of organic substances. The waste is discharged into the environment without any treatment process, it will cause the environmental pollution. In Indonesia, tofu industries (the small-scale industry) mostly do not treat their waste due to the problem of the high cost treatment process. The purpose of this research is to know the effective and economically reasonable that can be used by tofu producers to process tofu waste, especially liquid waste so not damage the environment. Water treatment process using bacterial from waste water as medium seems promising to develop since it does need any bacteria starter or other media like glucose. The other reason is wastewater from food processing is more suitable for microorganism cultivation because its effluent contains significant beneficial nutrient and less of toxic compounds and harmful substances that interface with the growth of microorganism in same condition (pH and Temperature) in Acclimatization process can reach 83.2% after 7 days of treatment. After the detention time (18 hours) the results of COD number also greatly decrease with 2.5 hours recirculation at 12 L/min air and pH 3.7 and 4.5 it can reach 85% and 86% of removal COD.
Effectiveness Combination of Electrolysis-Photolysis as Alternative for Drinking Rainwater Treatment Dila Rahmayanti; Muhammad Taufik Albanjari; Fikry Ardianto; Firra Rosariawari
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Rainwater can solve the crisis of clean water and drinking water in Indonesia. The utilization of rainwater as an alternative source of drinking water is one step in encouraging the Sustainable Development Goals (SDGs) program. One technology that can treat rainwater into drinking water is a combination of electrolysis with UV disinfection. Electrocoagulation can reduce physical and chemical pollutant loads, while biological parameters can be reduced by disinfection. Electrocoagulation is the process of clotting and deposition of fine particles in water using electrical energy. UV disinfection is a physical process of removing pathogenic bacteria in water with the help of ultraviolet light. The results of the combination of electrolysis with UV disinfection showed that it could reduce TDS parameters by 69%, turbidity by 72%, color by 18%, hardness by 50%, Fe by 43%, and E-Coli by 100%. So that the water quality has met the drinking water quality standards according to Permenkes No.492, the year 2010, it proves that the combination of electrolysis – UV disinfection is effective in processing rainwater into drinking water.

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