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All Journal Jurnal Riset Industri Hasil Hutan SRIWIJAYA JOURNAL OF ENVIRONMENT
Alponsin, Alponsin
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health

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Karakteristik anatomi dan energi kayu dari tiga tumbuhan invasif [Anatomical and energi characteristics of wood from three invasive species] Rahmadani, Silmi Yusri; Alponsin, Alponsin; Maideliza, Tesri; Jannatan, Robby
Jurnal Riset Industri Hasil Hutan Vol 13, No 1 (2021)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24111/jrihh.v13i1.6469

Abstract

The presence of invasive species is often seen as environmental and economic problem. On the other hand, the potential of these species which have fast growing and regeneration ability can be used for various purposes such as alternative bioenergy utilization. This study is aimed to observe the wood anatomical and energy characteristics of invasive species such as Melastoma malabathricum, L., Calliandra callothyrsus, Meissn and Acacia mangium, Willd. It is potentially utilized as source of alternative energy. This study used purposive sampling method, and used wood samples with the thickness of about ≥5 cm. This research was analyzed descriptively for anatomy characteristic whereas the diameter and frequency of vessel, heigh and width of parenchyma then calorific value, ash and moisture content analyzed using Kruskall Wallis and Mann Whitney. Anatomical characteristic of wood from two species were diffuse porous vessel, solitary and multiple vessel, frequency of vessel were rare to many and diameter of vessel were small to rather small and paratracheal axial parenchyma. Rays were uniseriate or biseriate with 1-3 seriate, height of ray category was extremely short and width rays were narrow to extremely narrow. All rays were homorocelular with upright or procumbent cells. The calorific value of these species started from 3,887.59 to 4,132.99 kal/g. Ash content start from 1.27–1.73% meanwhile the moisture content were 11.6–12.6%. Base on energy properties, Calliandra callothyrsus, Meissn. fulfilled the standard of bio pellet production base on SNI 8021 and EN- 14961-2.
Existence of Phytoplankton in Waters Affected by Hot Water of Electric Steam Power Plant (ESPP) of Teluk Sirih as Ecological Bioindicator Reference for Climate Change Mitigation Junialdi, Rezi; Merina, Gusna; Sari, Mistia; Mursyid, Ahmad; Alponsin, Alponsin; Drajat, Rian Rafiul; Sonia, Sonia
Sriwijaya Journal of Environment Vol 9, No 1 (2024): Environment and Suistainable Development
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22135/sje.2024.9.1.54-61

Abstract

Electric Steam Power Plant (ESPP) in Teluk Sirih located on the seafront will certainly have an impact on changes in environmental factors such as physical, chemical and biological, one of which will be affected is phytoplankton. The research objective was to study the community structure of phytoplankton in the waters affected by the hot water of the ESPP of Teluk Sirih which was carried out in August 2023 with four sample stations namely Outfall, Inlet, Jetty and the middle of the sea as controls. The results of the study showed that the community structure of phytoplankton in the waters around the PLTU of Teluk Sirih was not significantly affected by hot water. This is illustrated by the diversity results which are classified as well H' ranging from 1.710-2.156. Evenest Index (E) 0.562-0.761 and Dominance Index (C) 0.188-0.295. The E and C values show that the phytoplankton are evenly distributed and no species dominates the ESPP of Teluk Sirih. The physics and chemistry of water are all above the quality standards of Ministry of Environment No. 51. 2004 as temperature ranges from 29-320C, pH 7-8, brightness >3m, Salinity 31,4-32,2 mg/L. Dissolved oxygen 5 mg/L, Carbon dioxide 48-62 mg/L, BOD5 4-5 mg/L, Nitrates 0.02-0.031 mg/L and orthophosphate 0.014-0.018.Keywords: Hot water, Phytoplankton, ESPP of Teluk Sirih, Community Structure and Physical Chemical Factors
Co-Authors Drajat, Rian Rafiul Gusna Merina, Gusna Junialdi, Rezi Mistia Sari Mursyid, Ahmad Rahmadani, Silmi Yusri Robby Jannatan Sonia Sonia, Sonia Tesri Maideliza