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Strategies For Handling Plastic Bottle Waste In Gorontalo City Through The Utilization Of Asphalt Concrete Wearing Course (AC-WC) Additives Mayestika, Fidya; Rahim, Sukirman; Lihawa, Fitriyane; Utina, Ramli; Machmud, Marike
Indonesian Journal of Chemistry and Environment Vol. 7 No. 1 (2024): JUNE 2024
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v7i1.67871

The amount of plastic waste, especially disposable plastic bottle waste (PET), needs to be utilized. plastic bottle waste is a flexible material that can be used as an alternative additive to the pavement mixture so as to reduce the production of PET disposable bottle waste. So this research needs to be done to find out its utilization. The purpose of this research is to analyze Polyethylen Terephtalate (PET) plastic bottle waste can be used as an additive and analyze the amount of Polyethylen Terephtalate (PET) bottles needed for Asphalt Concrete Wearing Course (AC-WC) pavement mixtures. The method used is an experimental method carried out in two stages. The first stage of Marshall testing without using plastic to find the Optimum Asphalt Content (KAO) with variations of 4%, 4.5%, 5%, 5.5%, 6%, 6.5%. The second stage of Marshall testing using the optimum asphalt content (KAO) obtained from stage one with additional variations of Polyethylen Terephtalate (PET) plastic bottle waste 1%, 2%, 3%, 4%, 5% to get the optimum PET content. The results of stage one Marshall testing obtained an optimum asphalt content of 5.675%, while Marshall in the second stage obtained an optimum PET content of 0.45% equivalent to 0.0026 gr and all types of Marshall parameters met the Bina Marga 2018 revision 2 specifications for mixing Asphalt Concrete Wearning Course (AC-WC). Each production of one ton of Asphalt Concrete Wearning Course (AC-WC) requires 204.3 bottles of Polyethylen Terephtalate (PET) plastic.The amount of plastic waste, especially disposable plastic bottle waste (PET), needs to be utilized. plastic bottle waste is a flexible material that can be used as an alternative additive to the pavement mixture so as to reduce the production of PET disposable bottle waste. So this research needs to be done to find out its utilization. The purpose of this research is to analyze Polyethylen Terephtalate (PET) plastic bottle waste can be used as an additive and analyze the amount of Polyethylen Terephtalate (PET) bottles needed for Asphalt Concrete Wearing Course (AC-WC) pavement mixtures. The method used is an experimental method carried out in two stages. The first stage of Marshall testing without using plastic to find the Optimum Asphalt Content (KAO) with variations of 4%, 4.5%, 5%, 5.5%, 6%, 6.5%. The second stage of Marshall testing using the optimum asphalt content (KAO) obtained from stage one with additional variations of Polyethylen Terephtalate (PET) plastic bottle waste 1%, 2%, 3%, 4%, 5% to get the optimum PET content. The results of stage one Marshall testing obtained an optimum asphalt content of 5.675%, while Marshall in the second stage obtained an optimum PET content of 0.45% equivalent to 0, 0026 gr and all types of Marshall parameters met the Bina Marga 2018 revision 2 specifications for mixing Asphalt Concrete Wearning Course (AC-WC). Each production of one ton of Asphalt Concrete Wearning Course (AC-WC) requires 204.3 bottles of Polyethylen Terephtalate (PET) plastic.

Implikasi Pertumbuhan Penduduk dan Alih Fungsi Lahan Sawah terhadap Ketahanan Pangan di Provinsi Gorontalo Usman, Mohamad Zainudin; Lihawa, Fitriyane; Baderan, Dewi Wahyuni K.
WISSEN : Jurnal Ilmu Sosial dan Humaniora Vol. 3 No. 1 (2025): Februari : WISSEN : Jurnal Ilmu Sosial dan Humaniora
Publisher : Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/wissen.v3i1.538

This study investigates the implications of population growth and the conversion of paddy fields on rice food security in Gorontalo Province, Indonesia, during 2018–2023. Employing a quantitative descriptive research design with panel regression analysis, the research examines the relationship between population growth, paddy field conversion, and rice food security as a dependent variable. The findings reveal that both population growth and paddy field conversion significantly and positively influence rice food security. Population growth raises demand for rice, while paddy field conversion threatens production capacity, intensifying food security challenges. The results suggest that addressing land-use changes and managing population growth are crucial for maintaining sustainable food availability. This study contributes to understanding the dynamics of food security and provides recommendations for policymakers to design effective strategies in balancing population needs, agricultural sustainability, and economic development in Gorontalo.

STRATEGI PENGELOLAAN LIMBAH CAIR INDUSTRI KECIL MENENGAH DI KABUPATEN GORONTALO UTARA T. Zees, Dewi Sartika; Desey, Herlina; Lihawa, Fitriyane; Dunggio, Iswan
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 10 No. 1 (2022): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v10i1.262

Abstrak: Strategi Pengelolaan Limbah Cair Industri Kecil Menengah di Kabupaten Gorontalo Utara. Saat ini Kabupaten Gorontalo Utara memiliki 508 Industri Kecil Menengah. IKM berpotensi menimbulkan dampak negatif melalui limbah yang dihasilkan. Pemerintah Kabupaten Gorontalo Utara telah melakukan antisipasi terhadap segala dampak negatif yang ditimbulkan oleh aktivitas IKM salah satunya dengan mengeluarkan peraturan bupati (PERBUP) Nomor 9 Tahun 2015. Namun kebijakan ini belum efektif diberlakukan. Penelitian ini bertujuan, 1) menganalisis kualitas limbah cair industri kecil menengah di Kabupaten Gorontalo Utara, 2) menentukan strategi kebijakan pengelolaan limbah cair industri kecil menengah di Kabupaten Gorontalo Utara. Metode pengumpulan data dilakukan secara sampling dengan cara mengambil sampel limbah cair di lapangan dan wawancara terhadap pengelola IKM. Data yang diukur meliputi Suhu, pH, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total suspended Solid (TSS). Selanjutnya untuk menganalisis strategi pengelolaan limbah cair IKM di Kabupaten Gorontalo Utara, digunakan metode SWOT dengan menganalisis kondisi internal dan kondisi eksternal pengelolaan limbah cair di IKM. Hasil Analisa laboratorium menunjukkan Konsentrasi BOD, COD, TSS pada IKM tahu dan minyak kelapa berada diatas baku mutu yang mengancam kelangsungan biota perairan dan Kesehatan manusia. Antisipasi terhadap hal ini adalah limbah cair yang dihasilkan harus dapat diolah kembali menjadi bahan yang bernilai ekonomi tinggi Abstract: Management Strategy of small and medium enterprises waste pollution in Gorontalo Regency. North Gorontalo Regency has 508 Small and Medium Enterprises (SME’s) that have the potential negative affects through the waste their produce. The government of North Gorontalo Regency has anticipated the negative impacts caused by SME activities through PERBUP No 9 2015. However, this policy has not been effectively implemented. This study aims to 1) analyze the quality of small and medium enterprises liquid waste in North Gorontalo Regency, 2) determine policy strategies for managing small and medium industrial waste pollution in North Gorontalo Regency. The method of collecting data is by taking samples of liquid waste in the field and interviews with IKM managers. The data measured include Temperature, pH, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total suspended Solid (TSS). Furthermore, to analyze the SME liquid waste management strategy in North Gorontalo Regency, the SWOT method was used by analyzing the internal conditions and external conditions of liquid waste management in SME. The results of the laboratory analysis showed that the concentrations of BOD, COD, TSS in SME tofu and coconut oil were above the quality standard which threatened the survival of aquatic biota and human health. The anticipation of this is that the liquid waste produced must be reprocessed into materials of high economic value

KINERJA PENGELOLAAN DAS PAGUYAMAN BERDASARKAN KONDISI FISIKA DAN KIMIA AIR Lahili, Rahmanto; Lihawa, Fitriyane; Dunggio, Iswan
Gorontalo Journal of Forestry Research VOLUME 6 NOMOR 2 TAHUN 2023 GORONTALO JOURNAL OF FORESTRY RESEARCH
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32662/gjfr.v6i2.2505

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ABSTRAKÂ Aktivitas penambangan oleh masyarakat di sempadan Sungai Paguyaman, menyebabkan pencemaran di perairan sungai. Dampak langsung dapat dilihat pada kualitas perairannya. Tujuan penelitian ini adalah untuk menganalisis kualitas air Sungai Paguyaman pada areal penambangan batuan Desa Motoduto Kecamatan Boliyohuto. Penelitian ini dilakukan pada tahun 2022 di Sungai Paguyaman. Pengambilan sampel air di dilakukan di tiga tempat yaitu sebelum lokasi tambang sebagai kontrol, di tapak kegiatan tambang liar saat beraktivitas dan setelah lokasi pertambangan. Paremeter kualitas air meliputi parameter kecerahan, pH, Â dan Dissolved Oxygen (DO). total dissolved solid (TDS), Total Suspended Solid (TSS), suhu dan ammonia, Biologycal Oxygen Demand (BOD) dan Chemical Oxygen Demand (COD). Hasil pengukuran akan ditampilkan dalam bentuk grafik dan dibahas seacara deskriptif dengan merujuk pada baku mutu PP Nomor 22 tahun 2021 (Lampiran VI). Hasil analisis laboratorium menunjukkan bahwa parameter TSS dan Surfactan melewati baku mutu kualitas air untuk Kelas II. Konsentrasi TSS di lokasi control sebesar 98 mg/l dan Surfactan 0,009 mg/l. Konsentrasi TSS di sekitar lokasi tambang sebesar 119 mg/l dan Surfactan 0,02 mg/l. Konsentrasi TSS setelah lokasi tambang adalah 148 mg/l dan SurfactanÂ sebesar 0,021 mg/l. Baku mutu TSS untuk air sungai Kelas II sebesar 50 mg/l dan Surfactan sebesar 0,001 mg/l.ABSTRACTÂ Rock mining activities on the Paguyaman River border can cause river water pollution. The purpose of this study was to analyze the water quality of the Paguyaman River around the rock mining area of Motoduto Village, Boliyohuto District. Water sampling was carried out at three locations, namely before the mine site as a control, at the rock mining activity site and after the mining site. Water quality parameters include brightness, pH, and Dissolved Oxygen (DO) parameters. total dissolved solid (TDS), Total Suspended Solid (TSS), temperature and ammonia, Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD). The measurement results will be displayed in graphic form and analyzed descriptively by referring to the PP No. 22 of 2021 quality standard (Appendix VI). The results of the laboratory analysis showed that the TSS and Surfactant parameters passed the water quality standard for Class II. The concentration of TSS at the control location was 98 mg/l and surfactant 0.009 mg/l. The concentration of TSS around the mine site is 119 mg/l and Surfactan is 0.02 mg/l. The concentration of TSS after the mine site is 148 mg/l and Surfactan is 0.021 mg/l. The TSS quality standard for Class II river water is 50 mg/l and Surfactant is 0.001 mg/l.

STRATEGI PENGELOLAAN LIMBAH CAIR INDUSTRI KECIL MENENGAH DI KABUPATEN GORONTALO UTARA T. Zees, Dewi Sartika; Desey, Herlina; Lihawa, Fitriyane; Dunggio, Iswan
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 10 No. 1 (2022): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Abstrak: Strategi Pengelolaan Limbah Cair Industri Kecil Menengah di Kabupaten Gorontalo Utara. Saat ini Kabupaten Gorontalo Utara memiliki 508 Industri Kecil Menengah. IKM berpotensi menimbulkan dampak negatif melalui limbah yang dihasilkan. Pemerintah Kabupaten Gorontalo Utara telah melakukan antisipasi terhadap segala dampak negatif yang ditimbulkan oleh aktivitas IKM salah satunya dengan mengeluarkan peraturan bupati (PERBUP) Nomor 9 Tahun 2015. Namun kebijakan ini belum efektif diberlakukan. Penelitian ini bertujuan, 1) menganalisis kualitas limbah cair industri kecil menengah di Kabupaten Gorontalo Utara, 2) menentukan strategi kebijakan pengelolaan limbah cair industri kecil menengah di Kabupaten Gorontalo Utara. Metode pengumpulan data dilakukan secara sampling dengan cara mengambil sampel limbah cair di lapangan dan wawancara terhadap pengelola IKM. Data yang diukur meliputi Suhu, pH, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total suspended Solid (TSS). Selanjutnya untuk menganalisis strategi pengelolaan limbah cair IKM di Kabupaten Gorontalo Utara, digunakan metode SWOT dengan menganalisis kondisi internal dan kondisi eksternal pengelolaan limbah cair di IKM. Hasil Analisa laboratorium menunjukkan Konsentrasi BOD, COD, TSS pada IKM tahu dan minyak kelapa berada diatas baku mutu yang mengancam kelangsungan biota perairan dan Kesehatan manusia. Antisipasi terhadap hal ini adalah limbah cair yang dihasilkan harus dapat diolah kembali menjadi bahan yang bernilai ekonomi tinggi Abstract: Management Strategy of small and medium enterprises waste pollution in Gorontalo Regency. North Gorontalo Regency has 508 Small and Medium Enterprises (SME’s) that have the potential negative affects through the waste their produce. The government of North Gorontalo Regency has anticipated the negative impacts caused by SME activities through PERBUP No 9 2015. However, this policy has not been effectively implemented. This study aims to 1) analyze the quality of small and medium enterprises liquid waste in North Gorontalo Regency, 2) determine policy strategies for managing small and medium industrial waste pollution in North Gorontalo Regency. The method of collecting data is by taking samples of liquid waste in the field and interviews with IKM managers. The data measured include Temperature, pH, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total suspended Solid (TSS). Furthermore, to analyze the SME liquid waste management strategy in North Gorontalo Regency, the SWOT method was used by analyzing the internal conditions and external conditions of liquid waste management in SME. The results of the laboratory analysis showed that the concentrations of BOD, COD, TSS in SME tofu and coconut oil were above the quality standard which threatened the survival of aquatic biota and human health. The anticipation of this is that the liquid waste produced must be reprocessed into materials of high economic value

From Bottle to Tap: A Systematic Review of Interventions That Shift Beverage Intake from Sugar-Sweetened and Bottled Drinks to Tap Water Pakaya, Dudiyanto; Lihawa, Fitriyane; K Baderan, Dewi Wahyuni
West Science Interdisciplinary Studies Vol. 3 No. 12 (2025): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v3i12.2503

Rising consumption of bottled water and sugar-sweetened beverages poses challenges for health, environmental sustainability, and equity in access to safe drinking water. This systematic review examines interventions promoting a shift from bottled drinks to tap or plain water, focusing on behavioral mechanisms and impacts on health, nutrition, and the environment. Studies reviewed included diverse settings and methodologies, assessing outcomes related to beverage intake and associated indicators. Successful interventions combined infrastructure improvements, such as hydration stations, with education and policy changes favoring tap water. Behavioral responses were influenced by perceptions of safety and taste, while socio-economic and demographic factors affected effectiveness. Interventions generally led to reduced consumption of sugar-sweetened beverages and increased tap-water intake, with evidence of improved health outcomes in high-risk populations. Modelling studies anticipated significant reductions in greenhouse gas emissions and resource use by substituting tap water for bottled beverages. The review concludes that well-designed interventions can foster healthier beverage systems but calls for longer-term assessments that encompass health, environmental, and equity outcomes.

Attributing Climate vs. Land-Cover Effects on Watershed Hydrology and Water Quality: A Systematic Review of Modeling and Statistical Frameworks Artha, Dicky; Lihawa, Fitriyane; K Baderan, Dewi Wahyuni
West Science Interdisciplinary Studies Vol. 3 No. 12 (2025): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v3i12.2515

Climate change and land-use/land-cover (LULC) dynamics jointly reshape watershed hydrology and water quality, yet their relative contributions remain difficult to isolate across regions, indicators, and methods. This systematic review synthesizes 28 peer-reviewed studies (2000–2025) that explicitly attribute or partition climate and LULC effects on streamflow, water yield, evapotranspiration, baseflow, and multiple water-quality indicators (e.g., nutrients, sediments, dissolved organic matter, salinity/alkalinity, and contaminant mixtures). Studies were grouped into four synthesis themes: (i) conceptualizations and study designs, (ii) process-based and hybrid modeling frameworks, (iii) statistical and decomposition approaches, and (iv) cross-context patterns and water-quality attribution. Across the evidence base, attribution outcomes are strongly conditioned by methodological choices—especially baseline definition, construction of climate-only and LULC-only counterfactuals, spatial and temporal scale, and the metric used to express contributions (e.g., scenario contrasts, sensitivities, or variance explained). Long-term water-balance responses are often attributed primarily to climate forcing, while water-quality outcomes are more frequently attributed to LULC and direct anthropogenic pressures, with climate acting as a key modulator of transport pathways and exposure. We conclude that robust climate–LULC attribution requires explicit counterfactual design, integrated use of process-based and data-driven frameworks, explicit representation of interactions, and routine uncertainty analysis to support context-sensitive watershed management and climate adaptation.

From Bottle to Tap: A Systematic Review of Interventions That Shift Beverage Intake from Sugar-Sweetened and Bottled Drinks to Tap Water Pakaya, Dudiyanto; Lihawa, Fitriyane; K Baderan, Dewi Wahyuni
West Science Interdisciplinary Studies Vol. 3 No. 12 (2025): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v3i12.2503

Rising consumption of bottled water and sugar-sweetened beverages poses challenges for health, environmental sustainability, and equity in access to safe drinking water. This systematic review examines interventions promoting a shift from bottled drinks to tap or plain water, focusing on behavioral mechanisms and impacts on health, nutrition, and the environment. Studies reviewed included diverse settings and methodologies, assessing outcomes related to beverage intake and associated indicators. Successful interventions combined infrastructure improvements, such as hydration stations, with education and policy changes favoring tap water. Behavioral responses were influenced by perceptions of safety and taste, while socio-economic and demographic factors affected effectiveness. Interventions generally led to reduced consumption of sugar-sweetened beverages and increased tap-water intake, with evidence of improved health outcomes in high-risk populations. Modelling studies anticipated significant reductions in greenhouse gas emissions and resource use by substituting tap water for bottled beverages. The review concludes that well-designed interventions can foster healthier beverage systems but calls for longer-term assessments that encompass health, environmental, and equity outcomes.

Attributing Climate vs. Land-Cover Effects on Watershed Hydrology and Water Quality: A Systematic Review of Modeling and Statistical Frameworks Artha, Dicky; Lihawa, Fitriyane; K Baderan, Dewi Wahyuni
West Science Interdisciplinary Studies Vol. 3 No. 12 (2025): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v3i12.2515

Climate change and land-use/land-cover (LULC) dynamics jointly reshape watershed hydrology and water quality, yet their relative contributions remain difficult to isolate across regions, indicators, and methods. This systematic review synthesizes 28 peer-reviewed studies (2000–2025) that explicitly attribute or partition climate and LULC effects on streamflow, water yield, evapotranspiration, baseflow, and multiple water-quality indicators (e.g., nutrients, sediments, dissolved organic matter, salinity/alkalinity, and contaminant mixtures). Studies were grouped into four synthesis themes: (i) conceptualizations and study designs, (ii) process-based and hybrid modeling frameworks, (iii) statistical and decomposition approaches, and (iv) cross-context patterns and water-quality attribution. Across the evidence base, attribution outcomes are strongly conditioned by methodological choices—especially baseline definition, construction of climate-only and LULC-only counterfactuals, spatial and temporal scale, and the metric used to express contributions (e.g., scenario contrasts, sensitivities, or variance explained). Long-term water-balance responses are often attributed primarily to climate forcing, while water-quality outcomes are more frequently attributed to LULC and direct anthropogenic pressures, with climate acting as a key modulator of transport pathways and exposure. We conclude that robust climate–LULC attribution requires explicit counterfactual design, integrated use of process-based and data-driven frameworks, explicit representation of interactions, and routine uncertainty analysis to support context-sensitive watershed management and climate adaptation.

Equity in Household Food and Packaging Waste Management: A Systematic Literature Review of Determinants, Service Design, Measurement Bias, and Inclusive Interventions Assel, Abdurrahman; Lihawa, Fitriyane; K Baderan, Dewi Wahyuni
West Science Social and Humanities Studies Vol. 3 No. 12 (2025): West Science Social and Humanities Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsshs.v3i12.2502

Household food and packaging waste sit at the intersection of everyday routines and municipal service systems. Equity problems emerge when participation costs such as time, distance, storage space, and digital requirements are unevenly distributed across households. This systematic literature review synthesizes 55 Scopus-indexed journal articles published between 2020 and 2025, screened and reported using PRISMA 2020. We organize the evidence into four themes: equity determinants (gendered household labor, education-related competencies, and digital connectivity), service design mediators (coverage, proximity, pickup reliability, cleanliness, and rule clarity), measurement and bias in household waste quantification (self-report, diaries, weighing, composition audits, and smart sensing), and equity performance of packaging-oriented instruments (pay-as-you-throw pricing, deposit-return systems, extended producer responsibility, and refill or reuse models). Across contexts, equity effects are conditional on access: service reliability and convenience often explain intention-behavior gaps more than attitudes alone. Self-report methods frequently underestimate waste and overstate pro-environmental practices, while high-burden protocols risk excluding time-constrained households and biasing subgroup comparisons. We conclude with an access-first implementation roadmap and an equity-credible evaluation checklist combining affordability safeguards, low-technology participation pathways, and mixed-method measurement designs.

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