Vol. 5 No. 1 (2020): Environmental Friendly
Published:
03/10/2020
Articles
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Structure of Plankton Community in the Komering River of Palembang City Area South Sumatra
Yosafat Tawanggian Universitas Sriwijaya Indonesia , Effendi Parlindungan Sagala , Zazili HanafiahPenelitian tentang struktur komunitas plankton dan kualitas air. Penelitian tentang Struktur Komunitas Plankton di wilayah Sungai Komering di Kota Palembang, Sumatera Selatan telah dilakukan pada bulan Februari - April 2017. Lokasi pengambilan sampel adalah Penentuan berdasarkan metode Purposive Sampling, yaitu berdasarkan perbedaan lingkungan sekitar. Identifikasi sampel plankton dilakukan di Laboratorium Ekologi Hewan, Departemen Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Sriwijaya, Indralaya. Hasil penelitian genera 16 plankton terdiri dari 10 kelas: Bacillariophyceae, Chloropyceae, Fragilariophyceae, Cyanophyceae, Xanthophyceae, Flagellata, Rizophoda, Crustacea, Branchiopoda, dan Nematodes. Kisaran kelimpahan Plankton di Sungai Komering rendah antara 1 individu / liter - 91 individu / liter. Indeks keanekaragaman spesies di mana 0,88-1,18, tambang ini adalah kategori sedang. Indeks Dominan Plankton di stasiun 3 dan merupakan genera dominan, dengan nilai 4 0,56 dan 0,62, yang menunjukkan keberadaan spesies plankton yang mendominasi dan berdasarkan nilai indeks kesamaan menunjukkan bahwa antar stasiun penelitian memiliki kemiripan yang tinggi Mulai dari 40% - 82%. Sedangkan faktor fisik-kimia di perairan sungai tergolong stabil.          Â
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Pages: 1-8Views: - Downloads: -Electromagnetic Catalytic Cracking Process of Vacuum Residue Using Fe2O3/Al2O3
Metta Wijayanti Universitas Sriwijaya Indonesia , Sri Haryati , Muhammad Djoni BustanVacuum residue well know as waste product from refinery crude oil refinery and need a further process to improve its quality. In this study, a catalytic cracking process of vacuum residue in electromagnetic field is investigated using Fe2O3/Al2O3 as catalyst. The optimization process is conducted by combination vacuum residue and catalyst in the ratios of 1:5, 1:6, 1:7, 1:8, and 1:9 under 75 min of reaction time, 400oC and 10A applied current . Liquid product analyzed using gas cromatografy mass spectrometry (GCMS). The result showed that there were a formation of, p-xylene, paraffin, and naphthalene detected, meaning it was successfully cracked. In the retention time 4,3min, identified p-xylene which aromatic groups about 11,38%. Not only 1,04% paraffin identified in the retention time 7,76 min. But also, naphtalene about 3,28% was identified in the retention time 7,80 min.
Pages: 9-14Views: - Downloads: -Potential and Superior Commodities of Peat Hydrology Area (PHA) of Ogan Komering Ilir Regency South Sumatra (Case Study : PHA Saleh River – Sugihan River)
Hamidah Hamidah Program Pascasarjama Universitas Sriwijaya Indonesia , Marsi Marsi Faculty of Agriculture, Sriwijaya University, Palembang, South Sumatra, Indonesia. Indonesia , M Umar Harun Faculty of Agriculture, Sriwijaya University, Palembang, South Sumatra, Indonesia. IndonesiaNon-timber forest products (NTFPs) are a great potential in the forest, one of which is in the Saleh-Sugihan River Peat Hydrology Area (PHA). More optimal utilization of NTFPs is obtained with more diverse types of NTFPs, so it is important to know the diversity and potential of commodities in peatland areas for further development based on NTFPs. The research had been conducted from May to July 2018 in the PHA area of the Saleh-Sugihan Rivers, choosing Pangkalan Lampam District, Ogan Komering Ilir Regency, South Sumatra. Research sites include the villages of Air Rumbai, Deling, Lirik, Pangkalan Lampam, Rambai and Sukaraja. The research method is used by sampling, observation and interview methods. Determination of selected commodities uses analysis of Non-Timber Forest Products / NTFPs (Regulation of the Minister of Forestry of the Republic of Indonesia, 2009). Based on the results of the research that has been carried out, it is concluded that the leading commodity from the Peat Hydrology Area is swallow, paddy and fish, while the main commodity in Pangkalan Lampam sub-district is buffalo and purun. Leading commodity types of swallow, paddy, fish become NTFPs which are prioritized to be developed at the PHA River Saleh-Sugihan location, so that their development will be more focused and directed, in order to improve the regional economy.
Pages: 15-22Views: - Downloads: -Isolation and Potency Test of Sulfate Reducing Bacteria (SRB) as Bioremediation Agent for Ex-Coal Mining Soil
Aria Yanka Paula Putri Sriwijaya University Indonesia , Hary Widjajanti , Harminuke Eka HandayaniMining activities can have negative impact on the environment causing water and soil pollution. Chemical physical properties also biological environment to change condition to be low organic matter, low soil pH, low water holding capacity, inadequate nutrient and acid generating material. Coal mining land is acidic cause of sulfur oxidation reaction with rainwater to produce sulfuric acid so that acidic of the soil condition. Biotechnology study is a wise effort to solution environment pollution with Sulfate Reducing Bacteria (SRB) as bioremediation agents. SRB can contaminate sulphate with an indicator pH increase which indicates of a SRB population increase and sulfate content decrease. This study aims to obtain a SRB isolate as potential a bioremediation agent for ex-coal mining soil. This study is experiment research with SRB isolate as treatment, that obtained from ex-coal mining soil at PT. Bukit Asam Tanjung Enim, South Sumatera. The result of this study obtained 10 (ten) SRB isolated a from the bacterial isolation stage. Ten SRB isolates were selected, obtained by five SRB isolates that have black criteria with the number of colonies approaching the same so that it has the potential as a bioremediation agent for ex-coal mining soil. SRB isolates P10T1R2, P9T2R2, P6T1R3, P5T1R1 dan P2T1R2 were potential tested on ex-coal mining to increase pH and reduce sulfate. The P5T1R1 SRB isolate has the potential to reduce sulfate at a concentration of 3561 ppm. Furthermore the result of the 5% LSD test show that this isolates is significantly different that other isolates so that it can be used as bioremediation agent.
Pages: 23-29Views: - Downloads: -Factors Influencing Green Practices Adoption and Infusion by Manufacturing Companies in Ogun State, Nigeria
Oludele Mayowa Solaja Department of Sociology Olabisi Onabanjo University P.M.B 2002,Ago-Iwoye, Ogun State, Nigeria Nigeria , Obatunde Bright Adetola Department of Sociology Olabisi Onabanjo University P.M.B 2002,Ago-Iwoye, Ogun State, Nigeria Nigeria , Emeka E. Okafor Department of Sociology Olabisi Onabanjo University P.M.B 2002,Ago-Iwoye, Ogun State, Nigeria NigeriaThis study examined factors influencing the adoption and infusion of green practices by manufacturing companies in Ogun State, Nigeria. The study adopted a cross-sectional and descriptive survey research design. Area-based technique in which multi-stage sampling technique was used to select 321 employees of medium and large-sca2le manufacturing firms in Ogun State, Nigeria. A semi-structured questionnaire was used for data collection. The data were analysed using factor analysis and multiple regression. An examination of the research objective revealed two technological factors which are a combination of adoption cost and complexity (as the first factor) as well as the combination of relative advantage and compatibility (as the second factor) that influence green practices adoption in every manufacturing company. Also, five organizational factors (regulatory support, organizational support, quality of human resources, environmental factors and customer pressure) influence green practices adoption with eigenvalues greater than 1 and Cronbach’s alpha greater than 0.700. Test of hypotheses revealed that compatibility (β =0.191, t = 2.033; P < .05), organizational support (β = -0.303, t = -3.595; P < .05), environmental factors (β = -0.219, t = -3.199; P < .05) significantly independently predicted infusion of green practices while, adoption cost (β =-0.087, t = .909; P >.05), complexity (β =0.022, t = .264; P < .05), relative advantage (β =0.072, t = 808; P > .05), quality of human resource (β =0.125, t = 1.364; P > .05), government support (β =-.031, t = -464; P > .05), regulatory support (β = -.118, t = -1.562 P > .05) and customer pressure (β = -.119, t = -1.557; P > .05) had no significant independent prediction on infusion of green practices. The findings of the study were discussed within the existing literature and recommendations were provided for policy intervention.
Pages: 30-45Views: - Downloads: -The Application of Rubber Seed as Activated Carbon for Removal Methylene Blue by Using Microwave
Ema Luvita Sari Sriwijaya University Indonesia , M. Faizal Dept. of Chemical Engineering, Faculty of Engineering, Sriwijaya University, Indonesia , Tuti Indah Sari Dept. of Chemical Engineering, Faculty of Engineering, Sriwijaya University, IndonesiaActivated carbon prepared from rubber (Havea brasiliensis) seeds was used to remove methylene blue from aqueous solutions. Adsorption studies were conducted to evaluate the effect of contact time and amount of carbon active on the removal of methylene blue at temperature of 25oC. The equilibrium adsorption data of methylene blue on activated carbon were analyzed by Freundlich and Langmuir isotherm model. This research compare between conventional heating and microwave heating, various of mass adsorben and various of radiation time. Carbon was activated by using various KOH using Conventional and Microwave Heating . The best adsorption was shown in Impregnation Ratio 1:1,5 carbon and KOH which dried using microwave heating.It was 3,486 mg/g was qe value. The percentgae of adsorption was 69,72%. The best result of adsorption MB using various of mass adsorben was shown in 0,4 gr. The absorption kinetic models were predicted by pseudo-first-order and pseudo-second-order. The pseudo-second-order kinetic and pseudo second order model was fitting equilibrium adsorption data. The results of adsorption methylene blue on aqueous solutions shown that rubber seeds as carbon active can be used as material for adsorption.
Pages: 46-52Views: - Downloads: -Singapore Country Assistance to Help Extinguish Forest Fire in South Sumatera
Anton Minardi Pasundan University Indonesia , Taufik Taufik Pasundan University Indonesia , Dewi Astuti Pasundan University , Mochammad Irvan PamungkasForest and land fires has become one of the most difficult natural disaster to handle, forest and land fires happened every year all around the world, and become one of the many cause of global warming and climate change and if it is not resolved immediately then it will harm all of the living beings on this earth. Forest and land fire in Indonesia happened nearly every year, the first biggest forest and land fires ever recorded in Indonesia happened in 1998-1999 which harm many parties, especially the ASEAN, since then, forest and land fires in Indonesia nearly happened every year whose impact neighboring countries like Singapore and Malaysia, In 2015 forest and land fires can be said quite large and once again affects neighboring countries, until Indonesia neighboring countries like Singapore want to try to help extinguish the forest and land fires in Indonesia.
Pages: 53-59Views: - Downloads: -The physical and Chemical Impact of Microplastic in The Marine Environment: a Systematic Review
Anis Tatik Maryani Universitas Jambi Indonesia , Yudha Gusti Wibowo Universitas Jambi Indonesia , Kerlin Maysatria Universitas JambiMarine environment reported has been decreasing in water quality caused by microplastic. This micro-particle generated from contamination of ultraviolet light with plastic debris on the environment. Microplastic has been found in several marine environments and made some problems especially for marine ecosystem, such as beach, river and sea. This article described microplastic source, technique for detection and analysis of microplastic in marine environment, physicochemical of microplastic including physical properties such as particle size, particle shape, crystallinity, etc and chemical properties of microplastic (i.e. toxicity and chemical compounds). This article discusses the impact of microplastic for environment and human health. Thus, this article has described the systematic information about microplastic in the marine environment.
Pages: 60-68Views: - Downloads: -Make a Submission
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Sriwijaya Journal of Environment Sekolah Pasca Sarjana Universitas Sriwijaya