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Estimasi Timbulan Sampah dan Luas Lahan Tempat Pemrosesan Akhir Sampah (TPA) di Kota Kupang Oktavina G. LP Manulangga
INSOLOGI: Jurnal Sains dan Teknologi Vol. 1 No. 2 (2022): April 2022
Publisher : Yayasan Literasi Sains Indonesia

The city of Kupang is one of the developing cities and this has an effect on people's lifestyles and consumption patterns. The increasing purchasing power and competitiveness of the community towards various types of basic materials and technological products make a major contribution so that it indirectly contributes to the quality and quantity of waste. The final waste processing site (TPA) in Kupang City is located in Alak District with an area of 9.14 Ha and has been operating since 1998. Based on DLHK calculation data, the amount of waste generated every day is 86 tons of waste. The operation of the Alak TPA uses the controlled landfill method, but in practice the waste that enters the TPA does not go through a sorting and recycling process, but is directly disposed of in a landfill which is then covered with white soil and pressed with heavy equipment. The generation of waste in Kupang City has increased every year because not all waste can be managed properly. The problem of waste management in Kupang City is the limited capacity at the TPA, the slow processing of waste, and the increasing volume of waste, so that it is necessary to carry out a systematic, comprehensive and sustainable waste management including limiting waste generation, recycling waste, and/or reuse. rubbish. Determination of the location of the urban waste landfill must pay attention to the city development plan, the economic capacity of the local government as well as the physical and geological conditions of the planned area and must be in accordance with the planned period so that there is no accumulation of waste that can have an impact on health, environment and social and economics due to lack of land availability for waste disposal. Therefore, it is necessary to estimate the amount of waste generated in the City of Kupang and determine the need for land area to accommodate waste in landfills according to the plan period. Based on the results of the study, the total amount of waste generated in the planning year period was 8,336,498.4 m3 with a landfill area of 63.92 Ha, and a buffer area of 15.98 Ha. The soil covering the waste layer to be compacted in the TPA on the surface of the waste is about 15 m from the thickness of the pile.

Perencanaan Aplikasi Lamella Separator di Kota Kupang Oktavina G. LP Manulangga
Jurnal Indragiri Penelitian Multidisiplin Vol. 2 No. 2 (2022): Edisi Mei: Penelitian Multidisiplin
Publisher : Indra Institute Research & Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58707/jipm.v2i2.184

Population growth can cause a decrease in water quality in raw water sources due to human activities and land use around the source. Water that can be consumed must meet the Regulation of the Minister of Health of the Republic of Indonesia No.492/MENKES/PER/IV/2010, which includes physical, chemical and biological requirements. One of the chemical parameters in water quality requirements is the amount of calcium (ca) and magnesium (mg) in the water, the presence of which is known as water hardness. The maximum level of hardness that is allowed in drinking water according to the Minister of Health of the Republic of Indonesia Number 492/MENKES/PER/IV/2010 is 500 mg/liter. The source of raw water used by PDAM Kupang City comes from ground water and surface water. Based on chemical examination of water samples, Namosain spring has a high level of hardness, namely 606 mg/L CaCO3 compared to other springs. Lamella Separator is a sedimentation technology for purifying and recycling water and separating particles and turbidity from dirty water. Based on the author's previous research, the lamella separator was able to reduce the hardness up to 89.287%. So that the lamella separator can be used as an alternative treatment to reduce hardness on a household scale in Kupang City. The lamella separator application is planned to serve residents in Kupang City with a population of Kupang City in 2021 as many as 455.847 people with the assumption of kk 5 people so that the time required to treat 1497.64 L of water per day is 1.1 hours and the volume of the reservoir designed must be able to accommodate the volume of water of 15,000 m3.

Perencanaan Aplikasi Lamella Separator di Kota Kupang Oktavina G. LP Manulangga
Jurnal Indragiri Penelitian Multidisiplin Vol. 2 No. 2 (2022): Jurnal Indragiri Penelitian Multidisiplin
Publisher : Indra Institute Research & Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58707/jipm.v2i2.184

Population growth can cause a decrease in water quality in raw water sources due to human activities and land use around the source. Water that can be consumed must meet the Regulation of the Minister of Health of the Republic of Indonesia No.492/MENKES/PER/IV/2010, which includes physical, chemical and biological requirements. One of the chemical parameters in water quality requirements is the amount of calcium (ca) and magnesium (mg) in the water, the presence of which is known as water hardness. The maximum level of hardness that is allowed in drinking water according to the Minister of Health of the Republic of Indonesia Number 492/MENKES/PER/IV/2010 is 500 mg/liter. The source of raw water used by PDAM Kupang City comes from ground water and surface water. Based on chemical examination of water samples, Namosain spring has a high level of hardness, namely 606 mg/L CaCO3 compared to other springs. Lamella Separator is a sedimentation technology for purifying and recycling water and separating particles and turbidity from dirty water. Based on the author's previous research, the lamella separator was able to reduce the hardness up to 89.287%. So that the lamella separator can be used as an alternative treatment to reduce hardness on a household scale in Kupang City. The lamella separator application is planned to serve residents in Kupang City with a population of Kupang City in 2021 as many as 455.847 people with the assumption of kk 5 people so that the time required to treat 1497.64 L of water per day is 1.1 hours and the volume of the reservoir designed must be able to accommodate the volume of water of 15,000 m3.

Pemodelan Sistem Dinamis Pengolahan Sampah Organik di Kelurahan Oesapa Kota Kupang Solo, Anna Apriani Maniuk; Da Costa, Madalena; Manulangga, Oktavina G. LP.
Magnetic: Research Journal of Physics and It’s Application Vol. 4 No. 2 (2024): Magnetic: Research Journal of Physics and It’s Application
Publisher : Program Studi Fisika - Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/magnetic.v4i2.473

Kelurahan Oesapa merupakan kelurahan yang masuk dalam kawasan kumuh dengan jumlah penduduk tinggi yang dapat meningkatkan jumlah timbulan sampah organik. Berdasarkan hasil observasi di lapangan, Kelurahan Oesapa tidak memiliki Tempat Pengolahan Sampah (TPS) organik. Oleh sebab itu perlu ada pengolahan sampah organik secara berkelanjutan. Tujuan dari penelitian ini adalah untuk mengetahui timbulan sampah organik dan mengidentifikasi skema pengolahan sampah organik. Skema pengolahan sampah organik dapat ditentukan dengan menggunakan beberapa skenario pengolahan sampah organik dengan menggunakan metode dinamis. Dalam metodde ini terdapat sub sistem jumlah penduduk dan sub sistem volume sampah organik. Hasil penelitian menunjukan bahwa pada tahun 2033, jumlah penduduk di Kelurahan Oesapa diprediksi sebanyak 34.979 orang dengan jumlah timbulan sampah organik sebesar 16,1953 m3/hari. Pengolahan sampah organik saat ini masih menimbulkan masalah sampah karena terdapat 9,4386m3/hari sampah organik yang belum dikelola dan 6,0672 m3/hari sampah organik yang terangkut ke TPA. Simulasi sistem dinamis menunjukan skenario pengolahan sampah yang pertama merupakan skenario terbaik untuk mengatasi masalah timbulan sampah organik di Kelurahan Oesapa dengan jumlah sampah organik yang terolah dengan sistem komposting sebesar 2,3599 m3/hari dan terdapat 12,5860 m3/hari sampah organik yang dapat diolah pada TPS-3R dengan metode BSF sehingga jumlah sampah yang terangkut ke TPA hanya sebesar 0,7866 m3/hari.

Distribusi Spasial Kualitas Air Sumur di Sekitar Rumah Sakit St. Carolus Borromeus Kupang Leonardus Lewa Leko; Oktavina GLP. Manulangga; Madalena Da Costa
Journal of Mandalika Literature Vol. 5 No. 4 (2024)
Publisher : Institut Penelitian dan Pengembangan Mandalika (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jml.v5i4.3570

Well water is one of the water sources that is still used by the community for consumption and to fulfill other household needs. Community well water near the Carolus Borromeus Hospital has the potential to become contaminated. This research was conducted to analyze the spatial distribution of well water quality around St. Carolus Borromeus Kupang. This study aims to determine the quality standards of well water around the St. Carolus Borromeus Kupang and determine the spatial distribution pattern of groundwater around St. Carolus Boromeus. The method used in this research is taking samples then analyzing them in the laboratory and then comparing the results of physical, chemical and biological analysis with the applicable water quality standards according to their intended use. The spatial distribution pattern uses the parameter distribution pattern analysis method. The research results show that based on physical, chemical and biological analysis, in hospital outlet liquid waste there are several parameters that meet quality standards, but there are parameters such as Total coliform that do not meet quality standards. The results of parameter analysis in SG1 well water which is close to the hospital, several parameters meet quality standards, but the Fecal Coliform parameter does not meet quality standards for hygienic and sanitation purposes. The level of spread of contamination from organic matter and bacteria in groundwater is influenced by the type of soil, slope and direction of groundwater flow. The lower an area, the higher it is

Analisis Efektivitas Pengolahan Fisik-Biologis Pada Pengolahan Limbah Cair Covid-19 Di Rumah Sakit X Leonardus L. Leko; Oktavina G. Lp Manulangga; Madalena Da Costa
Journal on Education Vol 5 No 4 (2023): Journal on Education: Volume 5 Nomor 4 Mei-Agustus 2023
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v5i4.6655

Liquid waste generated from hospital activities since the Covid-19 pandemic has increased in quantity and contains microorganisms, especially the Corona virus, toxic substances, blood, body fluids sourced from Covid-19 isolation patient activities, treatment rooms, laboratory rooms, equipment and linen washing rooms. Hospital X is one of the Type C Hospitals in Kupang City that handles Covid-19 patients with liquid waste sources originating from the Emergency Room, Hospitalization, Operating Room, ICU Room, Laboratory, Radiology Room, Pharmacy Room, Kitchen, Office, and Laundry. To treat liquid waste generated from each unit, Hospital X uses a Wastewater Treatment Plant (WWTP) with a physical and biological treatment process and uses a closed piping system with gravity flow and pumping. Based on the results of the examination of physical parameters (temperature and pH), chemical parameters (BOD5, COD, TSS, NH3 Total, Oil and Fat, and MBAS), and microbiological parameters (Total coliform) have met the environmental quality standards in accordance with Permen LHK 68/2016 and Permen LHK 05/2014. The liquid waste treatment process at Hospital X is in accordance with the Decree of the Minister of Health of the Republic of Indonesia Number: 1204 / MENKES / SK / X / 2004, namely the hospital has carried out its own liquid waste treatment using a Waste Water Treatment Plant (WWTP).

Analisis Pola Sebaran Gas Pencemar SO2 dan NO2 Menggunakan Aermod View di Sekitar PT. Semen Kupang Leko, Leonardus Lewa; Manulangga, Oktavina GLP.
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v10i3.57827

Beberapa Gas buang yang berbahaya adalah sulfur dioksida (SO2) dan Nitrogen dioksida (NO2). Emisi SO2 dan NO2dihasilkan oleh semen industri dapat menimbulkan dampak negatif terhadap kualitas udara lingkungan. Penelitian ini bertujuan untuk mengetahui konsentrasi emisi SO2 dan NO2 dari cerobong industri semen dan penyebarannya serta memprediksi pola penyebaran SO2 dan NO2 gas berdasarkan model Aermod View. Sampel diambil dari enam lokasi dan dilakukan analisis konsentrasi lingkungan Gas SO2 ditentukan menggunakan Metode Pararosanilin dan gas NO2 ditentukan menggunakan Griez Saltzman. Pola emisi dianalisis menggunakan Continuous Emission Data Sistem Pemantauan (CEMS). Pola sebaran dan luas sebaran dianalisis menggunakan model Aermod View. Hasil penelitian menunjukkan bahwa emisi SO2sebesar 1,51 mg/Nm3 dan NO2 sebesar 63,23 mg/Nm3 dan hasil tersebut masih dibawah standar baku mutu menurut Peraturan Menteri Lingkungan Hidup No. 13/1995. Hasil analisis udara ambien menunjukkan konsentrasi maksimum ambien pada jarak 350 meter dari sumber emisi untuk parameter SO2 sebesar 726,769 μg/Nm3 dan parameter NO2 sebesar 152,420 μg/Nm3. Konsentrasi tersebut melebihi baku mutu udara ambien nasional sesuai PP nomor 22 tahun 2021 tentang Penataan dan Pengelolaan Lingkungan Hidup (lampiran VII). Hasil pemodelan menggunakan model Aermod View menunjukkan arah sebaran polutan berada di barat dan tenggara. Hal ini sesuai dengan hasil analisis windrose bahwa angin dominan bertiup dari timur ke barat dan dari barat laut ke tenggara. Pola sebarannya adalah semakin jauh letak polutan dari cerobong asap maka konsentrasi polutan semakin kecil dan penyebarannya semakin merata.

Penerapan Metode Hauled Container System dan Stationary Container System untuk Optimalisasi Pengangkutan Sampah di Kota Kupang Manulangga, Oktavina G. LP; Costa, Madalena Da; Leko, Leonardus Lewa
Leibniz: Jurnal Matematika Vol. 4 No. 2 (2024): Leibniz: Jurnal Matematika
Publisher : Program Studi Matematika - Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/leibniz.v4i2.605

Pengangkutan sampah di Kota Kupang masih belum optimal akibat keterbatasan armada, jumlah Tempat Penampungan Sementara (TPS), dan sistem jaringan transportasi yang belum memadai. Padahal, pengangkutan sampah merupakan salah satu komponen penting dalam sistem pengelolaan sampah, yang dapat menyumbang 40–60% dari total biaya operasional serta berdampak pada efisiensi waktu dan usia pakai kendaraan. Penelitian ini menerapkan dua metode sistem pengangkutan, yaitu Hauled Container System (HCS) dan Stationary Container System (SCS), untuk mengoptimalkan proses pengangkutan sampah di Kota Kupang. HCS dan SCS merupakan sistem pengumpulan sampah tidak langsung dengan pendekatan kontainer individual. Berdasarkan proyeksi, jumlah penduduk Kota Kupang pada tahun 2025 diperkirakan mencapai 511.103 jiwa, dengan timbulan sampah sebesar 358 m³/hari. Volume sampah yang tinggi ini berdampak pada peningkatan kebutuhan armada, frekuensi ritasi, dan jalur pengangkutan. Hasil analisis menunjukkan bahwa penerapan metode HCS dengan armada arm roll truck berkapasitas 6 m³ mampu melakukan 4,46 ritasi/hari per unit, dengan waktu tempuh rata-rata 1,433 jam/ritasi untuk dua kali ritasi. Sementara itu, metode SCS menggunakan armada dump truck berkapasitas 8 m³ hanya mampu melakukan 1 ritasi/hari per unit, dengan waktu tempuh 1,183 jam/ritasi. Masing-masing armada direncanakan melayani satu kelurahan dengan durasi kerja operasional selama 8 jam per hari. Hasil ini menjadi dasar pertimbangan dalam perencanaan sistem pengangkutan sampah yang lebih efisien dan berkelanjutan di Kota Kupang.

Simulasi dan Analisis Kuantitatif Status Mutu Air Menggunakan Metode Pollution Index pada DAS Dendeng dan Liliba Manulangga, Oktavina G. LP; Leko, Leonardus Lewa
Leibniz: Jurnal Matematika Vol. 4 No. 1 (2024): Leibniz: Jurnal Matematika
Publisher : Program Studi Matematika - Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/leibniz.v3i1.606

Penelitian ini bertujuan untuk menganalisis kualitas air pada Daerah Aliran Sungai (DAS) Dendeng dan Liliba dengan menerapkan metode Pollution Index (PI) sebagai pendekatan kuantitatif untuk pemodelan status mutu air. Metode PI memanfaatkan formula matematis berbasis rasio konsentrasi parameter pencemar seperti BOD, COD, dan DO terhadap nilai baku mutu sesuai Peraturan Pemerintah No. 22 Tahun 2021. Nilai indeks dihitung melalui kombinasi nilai rerata dan maksimum dari rasio konsentrasi terhadap baku mutu, dan kemudian diklasifikasikan dalam skala pencemaran. Pengolahan data dilakukan untuk setiap titik pengambilan sampel menggunakan rumus PIj. Hasil simulasi menunjukkan bahwa DAS Dendeng dan Liliba termasuk dalam kategori tercemar ringan, dengan nilai PIj berkisar antara 1,02 hingga 2,5. Penelitian ini memperlihatkan bagaimana model matematis berbasis indeks pencemaran dapat digunakan untuk mendukung pengambilan keputusan dalam pengelolaan kualitas air secara kuantitatif dan obyektif.

Pemodelan Matematis Isoterm dan Kinetika Adsorpsi Ion Cr(VI) pada Limbah Elektroplating Menggunakan Adsorben Tempurung Kelapa Costa, Madalena Da; Manulangga, Oktavina G. LP; Martins, Martinho Dos Santos
Leibniz: Jurnal Matematika Vol. 3 No. 1 (2023): Leibniz: Jurnal Matematika
Publisher : Program Studi Matematika - Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/leibniz.v3i1.608

Peningkatan jumlah industri di Indonesia berkontribusi terhadap pertumbuhan ekonomi nasional, namun juga menimbulkan ancaman serius terhadap lingkungan akibat pencemaran air dan tanah oleh limbah organik maupun anorganik. Industri elektroplating merupakan salah satu sumber utama limbah berbahaya, khususnya yang mengandung ion logam berat kromium heksavalen (Cr(VI)) seperti kromat, dikromat, dan bikromat, yang tergolong limbah Bahan Berbahaya dan Beracun (B3). Salah satu metode yang dinilai efektif dan ekonomis untuk mengatasi pencemaran ini adalah proses adsorpsi menggunakan karbon aktif. Dalam penelitian ini, digunakan karbon aktif berbahan dasar tempurung kelapa untuk mengadsorpsi ion Cr(VI) dari limbah elektroplating. Efektivitas adsorpsi dikaji melalui pendekatan model isoterm Langmuir, Freundlich, dan Temkin, serta analisis kinetika adsorpsi. Hasil penelitian menunjukkan bahwa proses adsorpsi mengikuti model isoterm Langmuir dengan koefisien determinasi (R²) tertinggi sebesar 0,954, yang mengindikasikan terjadinya adsorpsi monolayer pada permukaan adsorben yang homogen. Dengan demikian, karbon aktif dari tempurung kelapa memiliki potensi besar sebagai adsorben alami yang efisien dan ramah lingkungan untuk penanganan limbah logam berat Cr(VI).

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