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Sriwijaya Journal of Environment
Published by Universitas Sriwijaya
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Sriwijaya Journal of Environment (SJE), a multidisciplinary environmental sciences Journal is a Peer-reviewed Journal and publishes from Graduate School, Sriwijaya University, Indonesia. The journal publishes high quality reviews, full papers and communications in all branches of environmental sciences Articles submitted for publication in Sriwijaya Journal of Environment (SJE) should strictly adhere to the following: Provide original work in environmental science, which is not published elsewhere in any medium by the authors or anyone else, and is not under consideration for publication in any other medium. Sriwijaya Journal of Environment is a scientific journal, which publishes latest research results from all fields of environmental sciences, thus articles should focus on the aims and scope of the journal.
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Articles 61 Documents
A New Process of Capturing Carbon Dioxide Gas From The Atmosphere Using Solid & Aqueous Sorbents in Pilot Plant Talapatra, Akash
Sriwijaya Journal of Environment Vol 3, No 3 (2018): Sustainable Resources
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (629.97 KB) | DOI: 10.22135/sje.2018.3.3.123-130

Abstract

The capturing process of CO2 directly from air has been developed largely considering with commercial scale in pilot plants. This is done so that the capture CO2 from air can be used as a feedstock or raw material for producing carbon free renewable fuels by applying direct air capture (DAC) process. This way of capturing is gone to be possible with using some solid & aqueous sorbents in pilot plant. The success of this capturing process is depended on the appropriate configurations of both major & minor plant operations. Heat & mass balance are required necessarily to contribute on the finding of each pilot plants data. The design of this process is modeled like this so that the captured CO2 can be delivered at 15MPa into the pilot plant & for this, the requirements of energy inputs are about 8.81GJ or 5.25GJ of natural gas & 0 KWHr or 336KWHr of electricity respectively. Then all the results finding from the pilot contactor, reactor, calciner are optimized to reduce the processing cost of the capturing process. It is observed after the ending of the process that the amount of operating cost is ranged between 50$ to 100$ to capture per ton of CO2 from surrounding air where the total levelized cost of the whole process ranges between 94$ to 232$/t-CO2. If it considers the other specific choices such as financial safety, environ mental & ecological arrangements etc. then this DAC process would be the best reliable solution to capture the CO2 from air in upcoming decades.
Finding Policies of Disguised Unemployment Arrangement: Through Various Technological Innovation of Agriculture and Income Diversification For Tidal Rice Farmer Adriani, Dessy; Wildayana, Elisa
Sriwijaya Journal of Environment Vol 3, No 3 (2018): Sustainable Resources
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1307.539 KB) | DOI: 10.22135/sje.2018.3.3.113-122

Abstract

The ecological constraint of tidal lands necessitates agricultural innovation in the related area. But technological innovation, however, make the disguised unemployment worsen in tidal land.  Income diversification is expected to be a solution to the rising number of disguised unemployment-associated agricultural innovation. Both combined will offer a solution to cope with the issue of disguised unemployment. This study is aimed to analyzing strategies used to cope with disguised unemployment in the tidal agricultural sector through a combination of technological innovation and income diversification. The study was carried out in the tidal lands in Province of South Sumatra, Indonesia in 2017. This study employed a quantitative method with a survey technique. Simple random sampling was conducted to determine each subject population.The analysis was carried out using tabulative, mathematical, and simulation method. Technological innovation in agriculture gave to the rising number of disguised unemployment in tidal agriculture sector. But, with technological innovation and income diversification, disguised unemployment will be decreased and farmers' income will be increased, yet, the productivity will be low. In other words, to cope with the issues of disguised unemployment, technological innovation in the agricultural sector should be accompanied with the income diversification. However, we should be noted that the combination of agricultural technology innovation policy and income diversification affects to decreasing on household productivity The results are, by and large, useful for policy makers in designing in arranging disguised unemployment policies. 
Anthropocentrism: the importance of traditional oil mining in Sustainable Development Sununianti, Vieronica Varbi
Sriwijaya Journal of Environment Vol 3, No 3 (2018): Sustainable Resources
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.631 KB) | DOI: 10.22135/sje.2018.3.3.131-136

Abstract

This study shows the interaction between the natural environment and human. Starting from the revelation of the rubber price implicate on the global changes in the relationship between the physical environment with the complex social (population, technological constraints, organization, culture, and social system) at the local level. It is important to see a variation of mutual dependence and modification of social-economic changes, especially traditional oil mining (illegal). Economic interests and environmental degradation threaten the fulfillment of the next generation needs.  Data collection for this study through qualitative research method with in-depth interviews as primary data and is located in the three villages (Keban 1, Macang Sakti, and Lubuk Bintialo) Musi Banyuasin District). Social inequality triggered the exploitation of natural resources widely. Local community relations with nature is very instrumental to achieve welfare. For that, need to social engineering project system that future-oriented with the collaboration of local communities, corporation, and government. But the political will to achieve sustainable development should be started by the government (state).
Overview of trends in crude palm oil production and economic impact in Malaysia Muda, Khalida; Ezechi, Ezerie Henry
Sriwijaya Journal of Environment Vol 4, No 1 (2019): PLANT AND FORESTRY
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.636 KB) | DOI: 10.22135/sje.2019.4.1.19

Abstract

Palm oil has become a major edible and economic commodity with applications in various domestic and industrial processes. Malaysia is the second largest producer and exporter of crude palm oil (CPO). The oil palm industry in Malaysia significantly expanded and has become a major economic sector. The global demand of this precious commodity as food and fuel has caused a significant upsurge in production of oil palm. A tremendous increase of CPO production has been witnessed in the Malaysian oil palm industry over a decade now. The CPO production in 2011 was about 11.8 million tonnes but skyrocketed to 19.92 million tonnes in 2017. Beyond the revenue generation from the oil palm industry in Malaysia, there is significant investment in research and development that has resulted in the discovery of more sustainable ways to manage oil palm waste. This overview therefore seeks to evaluate the trend in crude palm oil production in Malaysia and its economic contribution to the nation from 2007-2017. Various indices associated with crude palm oil production such as planted land area, volume of exported CPO, revenue generated from the exported CPO, average annual price of exported CPO, fresh fruit yield and oil extraction rate was discussed. This overview is limited to crude palm oil production within 2007-2017 and seeks to discuss the trend within the context of the timeframe.
Impact of Mounding on Poisoning Potential of Acid Sulphate Soil under Industrial Plants Forest Area Ogan Komering Ilir District Martinus, Ali; Setyawan, Dwi; Windusari, Yuanita
Sriwijaya Journal of Environment Vol 4, No 1 (2019): PLANT AND FORESTRY
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.602 KB) | DOI: 10.22135/sje.2019.4.1.32

Abstract

Industrial Forest Plantations (HTI) are intended to increase productivity non-productive natural forest production. In Ogan Komering Ilir Regency HTI was developed in wetlands, one of which was acid sulphate soil which had major problems of flooding and waterlogging. To solve this problem, the technology other than making drainage canals is mounding. Mounding is by stacking around the material. It turned out that this mounding in acid sulphate soil posed a new problem is pirite oxidation which affected poisoning potential in acid sulphate soil. Purpose of this study was to analyze impact of this mounding on poisoning potential in acid sulphate fields in HTI area. This study uses survey methods and data are presented in tabulations. Analysis results of soil samples in mounding plot showed that poisoning potential  could be seen, namely soil pH was very acidic (pH <3), saturation of Al-dd was very high (> 70%), and concentration of pyrite was high (> 2.4%). This value is not suitable for plant growth
Microcosmic Study on Heterotrophic CO2 Emission from Tropical Peat as Related to Water Table Modification Lastuti, Dewi; Kadir, Sabarudin; Budianta, Dedik
Sriwijaya Journal of Environment Vol 1, No 1 (2016): The First Issue: Green Environment for Future Life
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (350.15 KB) | DOI: 10.22135/sje.2016.1.1.5-9

Abstract

 ABSTRACT: A microcosmic experiment was conducted to estimate CO2 emission from peat soils.  Two treatments, peat humification levels (F = Fibric, H = Hemic, S = Sapric) and water levels (G0 = 10 cm; G1= 0 cm; G2 = -10 cm; G3 = -20 cm), were tested and arranged according to factorial randomized complete block design (RCBD) with 3 replicates.  Current study revealed that CO2 emission was significantly affected (p<0.01) by peat humification levels and water levels.  The sapric peat emitted significantly higher CO2 (696.69 b ± 43.95 mg CO2 g-1 peat d-1) than hemic (504.62 a ± 105.72 mg CO2 g-1 peat d-1)and fibric (492.56 a ± 90.69 mg CO2 g-1 peat d-1)peats.  Decreases in water level shifted anaerobic condition into aerobic condition, causing significant increases in CO2 emission.  Regardless of peat humification levels, CO2 emission and water table depth in current study showed a nonlinier relationship.  It seems that a threshold water tables for enhanced CO2 emissions was within the range of -10 to -20 cm below peat surface.Keywords : microcosmic, peat, humification, CO2 emission. ABSTRAK (Indonesian): Tujuan percobaan skala mikrokosm ini adalah untuk estimasi emisi CO2 dari tanah gambut.  Pengaruh 2 (dua) perlakuan, yaitu tingkat humifikasi gambut (F = Fibrik, H = Hemik, S = Saprik) dan tinggi muka air (G0 = 10 cm; G1= 0 cm; G2 = -10 cm; G3 = -20 cm), disusun menurut Rancangan Acak Lengkap Faktorial (RALF) dengan 3 (tiga) ulangan.  Hasil penelitian menunjukkan bahwa perlakuan tingkat humifikasi gambut dan tinggi muka air mempengaruhi emisi CO2 secara nyata  (p<0.01).  Emisi CO2 dari gambut dengan tingkat humifikasi saprik menghasilkan emisi CO2 secara nyata lebih tinggi (696.69 b ± 43.95 mg CO2 g-1 gambut hr-1) dibandingkan dengan emisi CO2 dari gambut hemik (504.62 a ± 105.72 mg CO2 g-1 gambut hr-1) dan fibrik (492.56 a ± 90.69 mg CO2 g-1 gambut hr-1).  Penelitian ini juga menunjukkan bahwa perubahan suasana reduktif menjadi oksifatif akibat penurunan muka air juga diikuti oleh peningkatan emisi CO2 secara nyata pada semua tingkat humifikasi gambut.  Besaran emisi CO2 dan muka air tanah menunjukkan pola hubungan nonlinier pada ketiga tingkat kematangan gambut.  Hasil penelitian ini juga menunjukkan bahwa tinggi muka air pada ketiga tingkat kematangan gambut yang menjadi pemicu percepatan emisi CO2 adalah berada pada kisaran -10 to -20 cm di bawah permukaan gambut.Kata kunci : mikrokosm, gambut, humifikasi, emisi CO2.
Preparation Calcium Oxide From Chicken Eggshells Mohadi, Risfidian; Anggraini, Kiki; Riyanti, Fahma; Lesbani, Aldes
Sriwijaya Journal of Environment Vol 1, No 2 (2016): Developing Without Destruction
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.883 KB) | DOI: 10.22135/sje.2016.1.2.32-35

Abstract

Abstract: The preparation of metal oxide CaO from chicken eggshell has been carried out by decomposition at various temperatures 600, 700, 800, 900, and 1000oC. The metal oxide CaO was characterized using XRD. Furthermore, The optimum temperature for preparation of CaO was determined based on the XRD pattern, then the characterization of CaO was extended using FT-IR spectrophotometer and BET analysis. The results show that the optimum temperature for preparation of CaO from chicken eggshell is 900oC with peak of 2Ө at 32.3o, 37.4o, 53.9o, 64.2o and 67.5o, respectively. The FT-IR spectrums show the unique vibration for Ca-O at 393 cm-1. The BET analysis show that CaO has surface area 68 m2/g with pore volume 1.65 cm3/g and pore size 6.6 nm which can be classified as mesoporous.Keywords: eggshell, base catalyst, CaO, BET, mesoporous Abstrak (Indonesian): Pembuatan oksida logam CaO dari cangkang telur ayam telah dilakukan melalui dekomposisi pada berbagai suhu 600, 700, 800, 900, dan 1000°C. Oksida logam CaO dikarakterisasi dengan XRD. Selanjutnya, Suhu optimum untuk persiapan CaO ditentukan berdasarkan pola XRD, setelah itu karakterisasi CaO dilanjutkan menggunakan FT-IR spektrofotometer dan analisis BET. Hasil penelitian menunjukkan bahwa suhu optimum untuk pembentukan CaO dari cangkang telur ayam adalah 900°C dengan puncak 2Ө muncul di 32.3°, 37.4°, 53.9°, 64.2° dan 67.5°. Spektrum FT-IR menunjukkan vibrasi unik untuk Ca-O di 393 cm-1. Analisis dengan BET menunjukkan bahwa CaO memiliki luas permukaan 68 m2/g dengan volume pori 1,65 cm3/g dan ukuran pori 6,6 nm yang dapat diklasifikasikan sebagai mesopori.Kata kunci: kulit telur, katalis basa, CaO, BET, mesopori
Bioethanol Production From Cellulose by Candida tropicalis, as An Alternative Microbial Agent to Produce Ethanol from Lignocellulosic Biomass Hermansyah, Hermansyah; Novia, Novia; Wiraningsih, Maulin
Sriwijaya Journal of Environment Vol 1, No 1 (2016): The First Issue: Green Environment for Future Life
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (395.608 KB) | DOI: 10.22135/sje.2016.1.1.10-13

Abstract

Abstract: Candida tropicalis isolated from Tuak is a potentially useful microorganism for the ethanol production from lignocellulosic biomass and it can be alterbative agent replacing Saccharomyces cerevisae for fermentation process. Although C.tropicalis could not convert  all carbohydrates content of lignocellulosic into bioethanol, however it is able to grow on medium in the presence of either xylose or arabinose as carbon source.  Our result showed that fermentation of 10 % (w/v) cellulosic as sole carbon source produced 2.88% (v/v) ethanol by C.tropicalis.  This ethanol production was lower than usage of 10% (w/v) dextrose as sole carbon source  medium which producing 5.51% (v/v) ethanol.  Based upon our expreiment indicated that C.tropicalis is able to conduct two main process in converting of cellulosic material- to ethanol which is hydrolysis the degradation of cellulose into glucose, and fermentation the process the conversion glucose into bioethanol.Keywords  : Candida tropicalis, bioethanol, fermentation, cellulosic Abstrak (Indonesian): Candida tropicalis yang diisiolasi dari Tuak adalah agen yang berpotensi dalam produksi etanol dari biomasa lignoselulosa dan dapat dijadikan agen alternatif menggantikan Saccharomyces cerevisiae pada proses fernentasi.  Walaupun C.tropicalis tidak dapat mengkonversi semua kandungan karbohidrat lignoselulosamenjadi etanol, akan tetapi C.tropicalis mampu tumbuh pada media dengan xilosa atau arabinosa sebagaisumber karbon. Hasil kami menunjukkan bahwa dengan mengguankan C.tropicalis  fermentasi 10% (w/v) selulosa sebagai satu-satunya sumber karbon menghasilkan 2,88% (v/v) etanol, Produksi etanol ini lebih rendah jika menggunakan 10% (w/v) dekstrosa sebagai satu satunya sumber karbon yang menghasilkan 5,51% (v/v) etanol.  Berdasarkan percobaan menunjukkan bahwa C.tropicalis mampu melakukan dua proses utama dalam mengkonversi material selulosa menjadi etanol yaitu hidrolisis degradasi selulosa menjadi glukosa, dan fermentasi proses konversi glukosa menjadi bioetanol.Kata Kunci: Candida tropicalis, bioetanol, fermentasi, celulosik 
Palm Oil Mill Effluent Treatment Through Combined Process Adsorption and Membrane Filtration Said, Muhammad; Rozaimakh Sheikh Abdullah, Siti; Wahab Mohammad, Abdul
Sriwijaya Journal of Environment Vol 1, No 2 (2016): Developing Without Destruction
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (417.219 KB) | DOI: 10.22135/sje.2016.1.2.36-41

Abstract

Abstract: The growth in palm oil production also leads to an Increase in the production of palm oil mill effluent (POME). Nowadays, POME was treated using an open lagoon but this method is ineffectiveness in complying with the standards for water disposal. Therefore, efficient and cohesive treatment system is highly desired to ensure the final discharge of the treated water meets the effluent discharge standards. Initially, the POME was treated through adsorption, followed by UF membranes roomates were intended to reduce COD, TSS and turbidity up to 88%, 99%, and 98%, while the final treatment of RO membranes can reduce BOD, COD and color up to 92%, 98% and 99%. To determine the optimum condition of the RO membrane, response surface methodology (RSM) was used. The results showed there was correlation between all key variables. POME concentration, trans-membrane pressure, pH and time would give significant effects in reducing the parameters in POME treatment with the optimum condition of 15.77% for POME concentration, 3.73 for pH, 0.5 bar trans-membrane pressure and 5 hours for filtration time. To predict COD removal, the results were analyzed by applying the artificial neural network (ANN) to derive a mathematical model.Keywords: POME, Adsorption, Membrane filtration, COD, RSM, ANNAbstrak (Indonesian): Pertumbuhan produksi minyak kelapa sawit juga meningkatkan produksi air buangan minyak kelapa sawit (POME). Sekarang ini, POME diolah menggunakan kolam terbuka tetapi metode ini tidak efisien dan tidak memenuhi persyaratan standar air buangan industri. Oleh karena itu, diperlukan suatu sistem pengolahan yang efektif dan terpadu untuk memastikan air buangan pada tahap akhir telah memenuhi standar air buangan.  Pada awalnya, POME diolah melalui adsorpsi dan diikuti oleh membran UF dengan tujuan untuk mengurangi kadar COD, TSS dan kekeruhan hingga 88%, 99% dan 98%, masing-masing.  Sementara itu, pada proses akhir digunakan membran RO yang berhasil menurunkan kadar BOD, COD dan warna hingga 92%, 98%, dan 99%, masing-masing.  Untuk menentukan kondisi optimum dari membran RO digunakan metode respon permukaan (RSM).  Hasil memperlihatkan ada korelasi antara semua variabel. Konsentrasi POME, tekanan trans membran, pH aturan dan waktu memberikan pengaruh penting dalam pengurangan parameter pada pengolahan POME, dengan kondisi operasi optimum sebagai berikut: 15,77% bagi konsentrasi, 3,73 bagi pH, 0,5 bar bagi tekanan trans membran, dan 5 jam waktu filtrasi.  Untuk memprediksi penghilangan COD, hasil diperiksa menggunakan metode jaringan saraf tiruan (ANN). Hal ini bertujuan untuk mendapatkan suatu model matematika.Kata kunci: POME, Adsorpsi, Membran filtrasi, COD, RSM, ANN
The influence of pyrolysis and matrix modifiers on determination of Cr and Pb in sediment samples by GFAAS Mohadi, Risfidian; Broekaert, José A.C.
Sriwijaya Journal of Environment Vol 1, No 1 (2016): The First Issue: Green Environment for Future Life
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (211.05 KB) | DOI: 10.22135/sje.2016.1.1.14-17

Abstract

Abstract: The Influence of pyrolysis and matrix modifiers on determination of Cr and Pb in sediment samples using graphite furnace atomic absorption spectrometry has been investigated. The sediment samples including three certified reference materials (CRMs) are reported. Analyses were performed using microwave assisted dissolution. The matrix modifiers Mg(NO3)2, Pd+Mg(NO3)2 and NH4H2PO4were shown to be optimazed. The recovery for Cr and Pb in CRMs in the case of sample dissolution was found to be between 81 to 91% for Cr and 94 to 98% for Pb of the certified values, respectively.Keywords: Sediment, Pyrolysis, Matrix modifiers, Cr, PbAbstrak (Indonesia): Pengaruh pirolisis dan matriks pengubah pada penentuan Cr dan Pb dalam sampel sedimen menggunakan tungku grafit spektroskopi serapan atom telah diteliti. Sampel sedimen termasuk tiga bahan referensi bersertifikat (CRMs) dilaporkan dianalisis dengan menggunakan bantuan microwave ekstraktor. Matriks pengubah Mg(NO3)2, Pd+Mg(NO3)2 dan NH4H2PO4 telah digunakan dan menghasilkan nilai temu balik untuk Cr dan Pb dalam CRMs ditemukan antara 81-91% untuk Cr dan 94-98 % untuk Pb dari nilai sertifikat masing-masing.Katakunci: Sedimen, Pirolisis, Matrix modifiers, Cr, Pb