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All Journal Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Bumi Lestari Biologi Edukasi : Jurnal Ilmiah Pendidikan Biologi Journal of Applied Chemical Science SC (Savana Cendana) : Jurnal Pertanian Konservasi Lahan Kering Chemistry Indonesian Journal of Chemical Research JURNAL VOKASI ILMU-ILMU PERIKANAN (JVIP) Jurnal Manusia dan Lingkungan
Suwari
Fakultas Sain Dan Teknik Universitas Nusa Cendana, Jl. Adisucipto Penfui Kupang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Social Sciences

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ANALISIS KEBUTUHAN LUASAN HUTAN KOTA BERDASARKAN PENYERAPAN CO2 ANTROPOGENIK DI KOTA KUPANG Philipi de Rozari; Suwari Suwari
Bumi Lestari Journal of Environment Vol 12 No 2 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The main purpose of the research is to analyze the needs of urban forest in the Kupang City based on the sink of CO2 anthropogenic. Primary data collected through field surveys and laboratory analysis of leaf samples using carbohydrate method. Case studies and literature are used to obtain secondary data from relevant agencies or literature, especially the results of studies with similar cases. The results showed that increasing emmission of CO2 anthropogenic. Total emissions of CO2 anthropogenic come from the use of fuel oil and gas and electricity consumption was 393,498.003 tons/year, in 2015 increased to 490,673.45 tons/year, and in 2025 reached 710,928.38 tons/year. Urban forest area in the city today in many forms of 969.35 ha or 5.38%, but from the region of the pure function as urban forest is only 177 ha or 0.98%. Based on the absorption of CO2, the needs of urban forest area in the city at this time are sufficient, but based on Government Regulation number 63/2002 that establishes urban forest land area of at least 10% of the area of ??the city, the area available has not yet qualified. CO2 absorption of 9 tree species studied vary between tree species, depending on the mass of net carbohydrates, leaf area, and number of leaves per tree. Plants that have high the absorptive capacity of CO2 are the jackfruit and the banyan tree with value of 453.95 and 428.48 kg/tree/year, respectively, while the lowest  is flamboyant with 0.12 kg/tree/year of CO2 absorption.
Profil Fisika-Kimia Minyak Feun Kase (Thevetia Peruviana) Sebagai Sumber Baru Energi Terbarukan Jefry Presson; Yohana Ivana Kedang; Suwari Suwari
Savana Cendana Vol 6 No 01 (2021): Savana Cendana (SC) - January 2021
Publisher : Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1199.534 KB) | DOI: 10.32938/sc.v6i01.1238

Abstract

The depletion of world fossil energy has led to the development of renewable energy from vegetable oils, including Feun Kase with abundant vegetable oils. The main focus of this research was to identify the physicochemical properties and to explore the potential of Indonesian Feun Kase (Thevetia peruviana) oil as renewable energy. Feun Kase oil has been isolated by press and soxhlet method. The soxhlet (66.32% weight) provided a higher yield than the press (25.58% weight). The oil yielded was directly tested for the physicochemical test according to SNI 7182: 2015 (Indonesian National Standard). The parameters in this research were water content, acid number, saponification number, iodine value, density, viscosity, cetane number, flash point, and cloud point. The GCMS profile showed the presence of several fatty acids such as hexadecenoic acid (palmitic acid), 9,12−octadecadienoic acid (linoleic acid), 9−octadecenoic acid (oleic acid), and octadecenoic acid (stearic acid). Although there was no conclusion in terms of biodiesel, this research could give the report as the basic information that revealed the potential of Feun Kase oil. Several tests revealed that Feun Kase oil can be used as the feedstock for biodiesel. Unlike palm oil, the non-edible oil of Feun Kase does not compete with the food sector. Thus, it indicated that Feun Kase oil is a very competitive feedstock for renewable energy.
Kajian Kualitas Air Terhadap Populasi Makroalga Di Pesisir Teluk Kupang Nusa Tenggara Timur Theofilus Nalle; Priyo Santoso; Suwari Suwari
JURNAL VOKASI ILMU-ILMU PERIKANAN (JVIP) Vol 1, No 1 (2020): November 2020
Publisher : Politeknik Pertanian Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35726/jvip.v1i1.792

Abstract

Telah dilakukan penelitian tentang “Kajian Kualitas Air Terhadap Populasi Makroalga di Pesisir Teluk Kupang Nusa Tenggara Timur. Penelitian ini bertujuan untuk mengetahui status kualitas air di Teluk Kupang Nusa Tenggara Timur, komposisi makroalga di Teluk Kupang Nusa Tenggara Timur dan hubungan kualitas air terhadap keragaman dan dominansi makroalga di Teluk Kupang Nusa Tenggara Timur. Metode survei diaplikasikan dalam penelitian ini. Lokasi pengambilan sampel berada di pesisir pantai Teluk Kupang Nusa Tenggara Timur yang dibagi menjadi 4 stasiun yaitu di pesisir pantai Paradiso Oesapa, Pantai Nunhila, Pantai Noelbaki dan Pantai Kuka Sulamu. Hasil penelitian menunjukan bahwa Kondisi kualitas air di pesisir Teluk Kupang Nusa Tenggara Timur yaitu  salinitas sebesar 29 0/00, DO sebesar 6.63 mg/L, suhu sebesar 30.21 0C, ammonia < MDL dan nitrat 0.52 mg/L. Kondisi makroalga di perairan Teluk Kupang Nusa Tenggara Timur, untuk pantai Paradiso dan Nunhila memiliki Indeks keanekaragaman dan keseragaman kategori rendah. Indeks Dominansi pada lokasi pantai Paradiso mendekati nol,  sementara untuk lokasi pantai Nunhila memiliki indeks Dominansi sebesar 1, untuk lokasi pantai Noelbaki dan pantai Kuka Sulamu tidak mempunyai nilai indeks Keanekaragaman, keseragaman dan dominansi. Hasil analisis kualitas air terhadap indeks keanekaragaman (H’), keseragaman (E), dan Dominansi (C)  di Teluk Kupang Nusa Tenggara Timur secara simultan memiliki hubungan yang sangat tinggi, sedangkan pengaruh kualitas air terhadap keseragaman dan dominansi spesies makroalga di Teluk Kupang Nusa Tenggara Timur memiliki perngaruh yang berbeda-beda. Untuk indeks keanekaragaman, parameter suhu memberikan pengaruh yang sangat signifikan terhadap indeks Keanekaraman, sedangkan untuk parameter salinitas, DO, nitrat dan pH tidak berpengaruh secara signifikan. Hasil Analisis of Varians (ANOVA) memperlihatkan bahwa secara simultan (bersama-sama) kualitas air berpengaruh signifikan terhadap indeks keanekaragaman makroalga.Kata Kunci: Makroalga, kualitas air, indeks keanekaragaman, indeks keseragaman, indeks dominansi
MODEL PREDIKSI PENGARUH LIMBAH CAIR HOTEL TERHADAP KUALITAS AIR LAUT DI PESISIR TELUK KUPANG (A Prediction Model of Liquid Waste Hotel Impact on The Sea Water along The Coast of Kupang Bay) Inty Megarini; Suwari Suwari; Ricky Gimin
Jurnal Manusia dan Lingkungan Vol 22, No 3 (2015): November
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jml.18753

Abstract

ABSTRAKHotel-hotel di pesisir Teluk Kupang sebagian besar membuang efluen limbah cairnya ke laut. Kondisi ini akan berpengaruh terhadap kualitas air laut dan berdampak pada kelangsungan hidup biota dan mikroorganisme laut. Penelitian ini bertujuan untuk membuat prediksi pengaruh efluen limbah cair hotel yang dibuang terhadap kualitas air laut di hadapannya. Parameter yang diteliti adalah minyak dan lemak dan ortofosfat efluen limbah cair hotel. Parameter kualitas air laut yang diteliti adalah kekeruhan, minyak dan lemak dan klorofil. Metode pengambilan sampel dan pengujian menggunakan SNI dan USEPA. Analisis data menggunakan uji korelasi dan regresi. Hasil penelitian menunjukkan bahwa kekeruhan air laut pada jarak 0 meter dan 25 meter dapat diprediksi dari kadar minyak dan lemak efluen limbah cair hotel melalui model regresi y = 0,0051 x + 4,8456 dan y = 0,0015 x + 4,5440. Kadar klorofil air laut pada jarak 25 meter dan 75 meter dapat diprediksi dari kadar ortofosfat efluen limbah cair hotel melalui persamaan regresi y = 0,0430 x + 0,0004 dan y = 0,0075 x + 0,0001.ABSTRACTMost of the hotels located along the coast of Kupang Bay dump their effluent liquid waste to the sea. This action will definitely affect the sea water quality and in turn, will unavoidably give deep impact on the life of both microorganism and all the living things in the sea. This research intends to make an impact prediction on the sea water quality over the dumping hotels’ affluent liquid waste to the sea. The parameters which are observed are oil and fat and orthophosphate of the hotels’ affluent liquid waste. While the observed parameters of the sea water quality are turbidity, oil and fat, and chlorophyll. The methods used to take and test the sample are SNI and USEPA. And to analyze the data, testing on both correlation and regression are applied. The result of the study reveals that the turbidity of the sea water within the range of 0 to 25 meters can be predicted from the level of oil and fat of the hotels’ affluent liquid waste by using regression model equation y = 0.0051 x + 4.8456 and y = 0.0015 x + 4.5440. Meanwhile, the level of the sea water chlorophyll within the range of 25 to 75 meter can be predicted from the level of orthophosphate of the hotels’ affluent liquid waste by using the equation of regression y = 0.0430 x + 0.0004 and y = 0.0075 x + 0.0001.
The Potential for On-Site Determination of Mn(II) using Eco-Friendly Natural Tannins: A Cost-Effective and Sustainable Approach Ola, Pius Dore; Kothan, Domonika Pransa; Suwari, Suwari; Kadang, Luther; Darmakusuma, Dodi
Indonesian Journal of Chemical Research Vol 12 No 3 (2025): Edition for January 2025
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2025.12-ola

Abstract

This study exploited digital image colourimetry (DIC) with natural tannin as a reagent to determine Mn(II) in aqueous media. The calibration curve had a correlation coefficient of 0.995, indicating a strong dependence of absorbance on Mn(II) concentration. Although the spectrophotometry method with NaIO4 as a reagent showed better results, the DIC method remained within an acceptable range. Both methods showed insignificant difference in measurement average and variance. Common cations in natural water interfered with Mn(II) detection at a tolerance of less than 5% except for Fe(III), which can be easily precipitated before Mn(II) analysis. The DIC method applied to three water samples showed acceptable recovery, offering an easy and inexpensive on site Mn(II) determination.
Co-Authors Bambang Pramudya Charly Mutiara Dodi Darmakusuma Etty Riani Fransiskus Kia Duan H. R. Hadiman Hermania Em Wogo Inty Megarini Ita Djuwita Jacob A. Frans Jefry Presson Kothan, Domonika Pransa Luther Kadang Maya Roman Meri Letik Nurlailah D. Kartika Philipi de Rozari Pius Dore Ola Priyo Santoso Ricky Gimin Sherlly Ledoh Tahid Theofilus Nalle Welem A. Faot Wilhelmus I. I. Mella Yanti Benyamin Yohana Ivana Kedang Yoseph J. Hema