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6th Environmental Technology and Management Conference, ETMC 2019

作者： Va, Vandith Setiyawan, Ahmad Soleh Soewondo, Prayatni Putri, Dyah Wulandari Study Program of Environmental Engineering Faculty of Civil and Environmental Engineering Institute of Technology Bandung St. Ganesha 10 Bandung40132 Indonesia

Higher concentration of nutrients has been characterized from office buildings compared to domestic wastewater. A Modified Septic Tank (MST), which consists of anoxic conditions followed by a Moving Bed Biofilm Reactor (MBBR) is proposed to treat office wastewater. This research investigated the effect of Recirculation Ratio (RR) on organic and nutrient removal in MST. The synthetic wastewater with COD: TN: TP (252:85:3), which is similar to actual office wastewater was used. The experimental data were obtained from three RR values (2, 3 and 4). The results showed COD, TN, NH4, and TP removal ranged from 88% to 90%, 64% to 78%, 68% to 86%, and 56% to 64%, respectively. The effluent concentrations of COD and NH4 ranged from 21 to 30 and 9 to 23 mg/L after applying RR and from 19 to 24 and 27 to 29 mg/L without RR, respectively. RR had the significant effect on organic and nutritional removal (p 4 in the effluent needs to be considered. © 2020 The Authors, published by EDP Sciences.

关键词： Wastewater treatment

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Mangrove leaf extract substitution formulation in making hand soap to improve environmental health of coastal communities, Muara Gembong district

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AIP Conference Proceedings 2024年第1期2982卷

作者： Dwi Atmanto Cosmetology Education Study Program Faculty of Engineering State University of Jakarta Jakarta Indonesia

Hand soap is essential during the COVID-19 pandemic for cleaning hands that are frequently used for activities such as touching the face, eyes, and nose. Hand soap contains mangrove leaf extract (Rhizophora mucronata L.), which contains a substance that weakens bacteria. This study aimed to determine the quality of hand soap production by performing organoleptic tests, pH tests, viscosity tests, and foam height measurements. The data were analyzed using one-way ANOVA with a significance level of 5%. In an experimental research method, four formulas were used. The results were tested by 15 Muara Gembong residents using an organoleptic test. It demonstrates that there are differences in the effect of different percentages of mangrove leaf extract (Rhizophora mucronata L.) on the quality of hand soap, namely organoleptic tests (texture, smell, color, and aroma) with a p-significance < 0.05 (0.008 < 0.05). SNI standards are met by the quality of hand soap as measured by pH (8.27), thickness (2216.25 cPs), and foam height (78.71 mm). Hand soap containing 0.02% mangrove leaf extract (Rhizophora mucronata L.) has a better organoleptic quality, according to Muara Gembong respondents, with an average score of 4.26.

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Model of river environmental management based on sustainable community social capital

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AIP Conference Proceedings 2024年第1期2982卷

作者： Dwi Atmanto Cosmetology Education Study Program Faculty of Engineering State University of Jakarta Jakarta Indonesia

Along the river, many people live. As a result, many people dispose of their household or industrial waste in bodies of water. On the other hand, community groups are concerned about the river's environment. The study will take place along the Ciliwung River. Social capital data includes togetherness, mutual trust, sharing, cooperation, resource mobilization, and the principle of reciprocity. A survey of 30 people who live along the Ciliwung River. The collected data were processed descriptively, and a dynamic system created a model. According to the findings, the community's social capital of the participatory response is high, at 64.17%. 36% is the average level of reciprocity. The percentage of trust is 37%. Aspects of norms (a set of customary or local rules that apply): 58.5% is a high percentage. Aspects of values are 64% high. The statistical testing results in Fcount > Ftable (39.983 > 3,372) show that the percentage composition in each aspect of social capital differs significantly. When the system dynamics model is built with community social capital (citizens, NGOs, and entrepreneurs) and the role of the government, the quality of the river environment can be achieved in 18 years.

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Integration of Artificial Intelligence in Software Defined Networking Technology through Developing Machine Learning Algorithms 3

Integration of Artificial Intelligence in Software Defined N...

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3rd International Conference on Advance Computing and Innovative Technologies in engineering, ICACITE 2023

作者： Naibaho, Lamhot Saxena, Pulkit Raj Sharma, Kuldeep Alfurhood, Badria Sulaiman Pallavi, L. Pant, Bhasker Faculty of Letters and Languages Christian University of Indonesia English Language Education Study Program Indonesia Teer Thanker Mahaveer University College of Computing Science and Information Technology Uttar Pradesh Moradabad India Lovely Professional University Department of Computer Science and Engineering Punjab Jalandhar Phagwara India College of Computer Information Sciences Princess Nourah Bint Abdulrahman University Department of Computer Sciences Saudi Arabia B v Raju Institute of Technology Cse Telangana Narsapur India Graphic Era Deemed to Be University Computer Science & Engineering Uttarakhand Dehradun India

ISBN: (纸本)9798350399264

A future networking design called "software-defined networking"combines network programmability with centralized administration (SDN). Network administration is currently handled by SDN, which, at the regulator, which acts as the cable network processor and divides the data plane into a control plane and a data aircraft. Recent breakthroughs in artificial intelligence (Al) have shown a stronger inclination for the science community to benefit from their ability to give learning capabilities and enhance Indicator. The author of this research provides a comprehensive analysis of initiatives underway to incorporate Al with SDN. The study concluded that the three primary Al thread where scientific research was centered were computer science, conceptual, and fuzzy reasoning systems. The authors of this paper explore the several fields in which these approaches may be used, their potential future applications, and the innovations made possible by the integration of AI-based methods into the SDN paradigm. By choosing the right SDN controller, any large organization may lower network complexity, implementation expenses, and maintenance costs. The focus of this article is software defined networking's benefits and downsides (SDN). Following is a basic explanation of artificial intelligence and a list of some of its most significant applications in SDN. © 2023 IEEE.

关键词： Software defined networking

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Evaluating factors influencing community readiness for post-mining environmental development strategies

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Journal of Environmental Management 2024年 366卷 121823页

作者： Sutrisno, Agung Dwi Lee, Chun-Hung Suhardono, Sapta Suryawan, I Wayan Koko Department of Mining Engineering Institut Teknologi Nasional Jl. Babarsari Caturtunggal Depok Sleman Yogyakarta55281 Indonesia Department of Natural Resources and Environmental Studies College of Environmental Studies and Oceanography National Dong Hwa University Hualien97401 Taiwan Environmental Sciences Study Program Faculty of Mathematics and Natural Sciences Universitas Sebelas Maret Surakarta57126 Indonesia Department of Environmental Engineering Faculty of Infrastructure Planning Universitas Pertamina Jalan Sinabung II Terusan Simprug Jakarta12220 Indonesia

This research delves into the complex factors that affect how ready a community is to embrace new environmental development strategies, which could significantly change the region's social and economic fabric. Using a structured questionnaire, exploratory factor analysis and logistic regression analysis, the study assesses how corporate practices in resource management, environmental governance, efforts to enhance community capabilities, and various demographic factors influence the community's willingness to adapt to change. Despite its intentions to benefit both the mining operations and the community, corporate resource management appears to have a paradoxical impact on the community's willingness to pursue new environmental paths. This negative impact can be attributed to the dependency it creates. Effective corporate resource management can lead to a community becoming heavily reliant on the stability and benefits provided by the mining company. This dependency fosters a sense of security and satisfaction with the status quo, making community members less inclined to explore or support new and potentially disruptive environmental strategies. The stability provided by the mine's resource management practices may inadvertently anchor the community to existing economic structures, reducing their impetus to seek alternative livelihoods or adapt to new socioeconomic conditions. However, it is essential to consider the limitations of this finding. One limitation is the potential bias in community perceptions, where immediate benefits from corporate resource management overshadow long-term considerations for sustainable development. Additionally, the context-specific nature of this study means that these findings may not be universally applicable to all mining communities. © 2024 Elsevier Ltd

关键词： Mining

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Feasible tar cleaning method of producer gas from palm kernel shell and mahogany fruit shell gasification

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Materials Today: Proceedings 2022年 63卷 S237-S243页

作者： Pranolo, Sunu Herwi Waluyo, Joko Paryanto Susanti, Ari Diana Permana, Rizky Bagas Erwanda, Irvan Delayaski, Nuzila Alhaq, A'laa 'Izzuddin Putro, Firman Asto Chemical Engineering Study Program Faculty of Engineering Universitas Sebelas Maret Jl. Ir. Sutami 36A Surakarta57126 Indonesia Chemical Engineering Diploma 3 Vocational School Universitas Sebelas Maret Jl. Kolonel Sutarto 150K Surakarta57126 Indonesia

Palm kernel shells and mahogany fruit shells are technically possible to be converted into producer gas by means of air gasification process for several purposes, such as fuel gas, liquid fuels, or chemicals processes after specific treatments. Tar as the most significant impurity in the producer gas should be minimized to prevent blockage or chocking in the downstream flow of the system and to produce high purity gas. This research examines producer gas cleaning system which consists of scrubber, elutriator pipe, and shell-and-tube heat exchanger to produce low tar content producer gas in a fixed-bed gasifier using both feedstocks. This system is coupled with a fixed-bed gasifier using air as gasifying agent at feedstock capacity of 25 kg/h. It is found that gasification of palm kernel shell produced more tar at 92.67 ppm compared with mahogany fruit shell at 26.87 ppm. Furthermore, this system demonstrated high performance in reducing tar content in producer gas up to value of 8.67 ppm and 10.00 ppm for palm kernel shell and mahogany fruit shell gasification respectively. © 2022

关键词： Fruits

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Methylcellulose-AgNPs-oat hydrogel as a wound dressing for burn wound

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AIP Conference Proceedings 2024年第1期3047卷

作者： Prihartini Widiyanti Firza Siswanto Biomedical Engineering Study Program Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia Physics Study Program Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia

Based on the RISKESDAS in 2018 the prevalence of burns reached 1,3% of the total population of Indonesia and basen on WHO there were 195,000 cases of deaths due to burns every year. One clinical treatment for burns is to use hydrogels as wound dressing. Hydrogel wound dressing functions to absorb wound exudates, by keeping the wound moist. This study was conducted to determine the effect of adding oat extrac to the hydrogel methylcellulose-AgNPs. Hydrogel methylcellulose-AgNPs are mixed with oat extract, with an oat extract concentration of 0 wt%, 0.5 wt%, 1 wt%, 1.5 wt%, and 2 wt%. The characterization carried out included XRD crystallinity test and SEM morphology test for the characterization of AgNPs, and it was found that 10.2% of AgNPs were formed and evenly distributed AgNPs. In addition, characterization of hydrogel wound dressing was carried out which included antibacterial test, cytotoxicity test, swelling test, and antioxidant test. From the results of the analysis it was found that the best variable methylcellulose-AgNPs-oat hydrogel was a sample with an oat concentration of 2 wt%, which had a clear zone diameter of 10.35 mm and was sensitive to bacteria, had a% viability of 2.206%, a swelling value of 71, 7%, and has an antioxidant value of 95%. It shows that the addition of oats can increase the cell viability because oats are antioxidants, so they can counteract the free radicals produced by AgNPs, but the addition of oats increases sensitivity to bacteria because oats also function as antibacterial. Samples with oats of 2 wt% have the best characterization even though they have not met the standard wound dressing.

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On the influence of silica nanoparticles for enhanced oil recovery (EOR)

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AIP Conference Proceedings 2024年第1期3073卷

作者： Sarah Dampang Muhammad Mufti Azis Ahmad Tawfiequrrahman Yuliansyah Suryo Purwono Department of Chemical Engineering Faculty of Engineering Universitas Gadjah Mada Yogyakarta 55281 Indonesia Study Program of Chemical Engineering Faculty of Engineering Universitas Singaperbangsa Karawang 41361 Jawa Barat Indonesia Professional Engineering Program Faculty of Engineering Universitas Gadjah Mada Yogyakarta 55281 Indonesia

Utilization of nanoparticles in oil and gas sector has gained a significant interest. Silica nanoparticles is often considered as a promising chemical to improve the Enhanced Oil Recovery (EOR) process. The objective of this work was to provide a mini review to address the effect of silica nanoparticles addition in a chemical EOR. In this work, we have reviewed the influence of nanoparticles to reduce Interfacial Surface tension (IFT), to alter wettability, to reduce oil viscosity, to improve fluid rheology, and to alter structural disjoining pressure. We expect that this review may provide a useful guidelines for the development of silica nanoparticles in Indonesia.

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Multi-Stakeholder Collaboration for the Provision of Public Open Space (Case of Taman Indonesia Kaya, Semarang) 1

Multi-Stakeholder Collaboration for the Provision of Public ...

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1st International Conference on Urban Design and Planning, ICUDEP 2019

作者： Aswad, W.O.S.J. Damayanti, M. Urban and Regional Planning Study Program Faculty of Engineering Diponegoro University Semarang Indonesia Department Urban Dan Regional Planning Faculty of Engineering Diponegoro University Semarang Indonesia

Budget constraints are a common problem in Indonesian cities to provide attractive and attractive public open space. There is a need for cooperation between all parties, not only the government but also the private sector and society. These conditions encourage the Semarang City government to increase stakeholder collaboration in the provision of public green open space, one of which is in the development of Taman Indonesia Kaya. The purpose of this study is to examine the model of the collaboration process, the involvement and role of each stakeholder and the sustainability of collaboration. This study uses descriptive qualitative methods, data collection using observations and interviews on each stakeholder element, namely government, private and public. The results show that the collaboration process model starts from face to face dialogue, trust building, commitment to the process, shared understanding between stakeholders until the realization of attractive and attractive public green open space development. However, the sustainability of collaboration is a big challenge going forward. The structure of cooperation is not yet supported by clear institutional design, so that government courage and innovation are needed to determine the form of structural governance in collaborative management of public green open space. Collaboration should be carried out over the long term and use a networked administrative organization model so that the network that is built is in an administrative entity. The model is expected to create efficiency management and support the sustainability of collaboration. © Published under licence by IOP Publishing Ltd.

关键词： Sustainable development

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Biocompatibility evaluation of electrospun Poly-L lactic Acid-chitosan immobilized with heparin as scaffold for vascular tissue repair

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Journal of Science: Advanced Materials and Devices 2023年第3期8卷

作者： Suroto, Nur Setiawan Al Fauzi, Asra Widiyanti, Prihartini Bella, Fitria Renata Department of Neurosurgery Faculty of Medicine Universitas Airlangga – Dr. Soetomo General Academic Hospital Surabaya Indonesia Biomedical Engineering Study Program Department of Physics Faculty of Science and Technology Universitas Airlangga Jawa Timur 60115 Indonesia

Stroke is the second leading cause of death worldwide, disability, high morbidity, and mortality. One of the leading causes of infarct stroke is carotid stenosis. The postoperative narrowing of the carotid artery diameter is a common complication after primary arterial closure in carotid endarterectomy surgery. A biomaterial design that combines synthetic and natural polymers is a promising strategy for patching arterial closure. In this paper, the electrospinning process was employed and Poly-L Lactic Acid (PLLA) was used as a base material. Chitosan and heparin were added to increase the biocompatibility of the biomaterial. The electrospun PLLA-chitosan immobilized with heparin (C sample) had better characteristics than the pure electrospun PLLA. The fiber diameter decreased to a micrometer scale and the pore size fell and became narrower, resulting in a smoother surface. Fiber diameter results for each sample were 1312.66 nm, 486.29 nm and 387.87 nm. Thereby potentially reducing the activation of blood coagulation and inflammation. The ultimate tensile strength test result for each sample were 2.28 MPa, 3.61 MPa and 3.25 MPa, for elongation results were 12.05%, 17.39%, and 18.14%, aligned with those of the human carotid artery and indicating potential use in patch angioplasty applications. This scaffold nanofiber was declared non-haemolytic for the C sample was 1.13% and non-cytotoxic. Percent viability for each sample was 89.35%, 83.81% and 78.92%. The in vivo host tissue response was shown to decrease pro-inflammatory cytokine expressions. This research shows that the proposed PLLA-chitosan-heparin biomaterial has strong physical properties and can modify the inflammatory response. However, it requires additional biofunctional alterations to optimize its tissue engineering capabilities. © 2023 Vietnam National University, Hanoi

关键词： Chitosan Electrospinning Heparin Poly-L-lactic acid Vascular patch

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