Sriwijaya Journal of Environment
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The Effect of Pressure and Time Operation of Water Treatment of Gasing River on Pollutant Concentration by Using Ceramic Membrane Separation
No full textAbstractThe purpose of this study is to treat water from Gasing River, Banyuasin District, South Sumatera Province by using ceramic membrane to produce clean water. Also, this study is to analyze the performance of ceramic membranes in terms of its ability to reduce the pollutants contained in water of Gasing River. The ceramic membrane was tube-shaped, made from clay (87.5% w), iron powder (2.5% w) and activated carbon of oil palm empty bunch (10% w). The operation condition of membrane separation was of 15 minutes; 30 minutes; 45 minutes; 60 minutes; 75 minutes; 90 minutes and the applied pressure was of 1.0 bar, 1.5 bar and 2.0 bar. The reduction pollutants (Fe, Mn, Zn, NH3-N, NO2- and PO4-3) concentration increased with increasing the pressure and the operating time of membrane separation, and the pollutants concentration in effluent was met the Environmental Quality Standards.
Harmonization of Green Open Space as Carbon Assimilator for Sustainable Environment of Transportation Sector and Steam Power Plant
Get PDFAbstract The environment has a function as a provider of raw materials (natural resources), aesthetics value and carbon assimilators. Emissions arising from the impact of activities in handmade environments such as transportation activities and steam power plant (SPP) activities may cause the environment to become unsustainable. The polluted air leads to a deterioration of the quality of both natural and social environment. Harmonization that occurs between green open space as the natural environment, transportation activities and steam power plant as handmade environment, and people as transport users and around SPP as social environment becomes sustainable. Reduced air pollution on the other hand, making the air absorbed by the community around the steam power plant is also better in quality. This makes the community of transportation users and steam power plant as social environment becomes sustainable since the impacts of the derivatives that arise on public health is being reduced. Thus, the harmonization between the three components of the living environment, namely Green Open Space (GOS) as the natural environment, transportation activities and steam power plant as an handmade environment, and the people as transportation users and around SPP as a social environment in the transportation sector and steam power plant. Keywords: Emission, Natural environment (GOS), Handmade environment (transportation and steam power plant), Sustainable environment.. Abstrak (Indonesian) Lingkungan memiliki fungsi sebagai penyedia bahan mentah (sumber daya alam), nilai estetika dan asimilator karbon. Emisi yang timbul sebagai dampak kegiatan di lingkungan buatan seperti kegiatan transportasi dan kegiatan pembangkit listrik tenaga uap (PLTU) dapat menyebabkan lingkungan menjadi tidak berkelanjutan. Hal ini dikarenakan emisi menyebabkan udara menjadi tercemar. Udara yang tercemar mengakibatkan penurunan kualitas lingkungan alam dan lingkungan sosial. Harmonisasi yang terjadi antara ruang terbuka hijau sebagai lingkungan alam, kegiatan transportasi dan PLTU sebagai lingkungan buatan serta masyarakat penggguna transportasi dan sekitar PLTU sebagai lingkungan sosial menjadi berkelanjutan. Hal ini karena emisi yang timbul oleh kegiatan transportasi dan PLTU dapat diserap oleh tanaman yang terdapat pada ruang terbuka hijau. Penyerapan ini dapat mengurangi penurunan kualitas udara sehingga lingkungan alam tetap terjaga dan berkelanjutan. Berkurangnya pencemaran udara disisi lain, menjadikan kualitas udara lebih baik lagi sehingga udara yang diserap oleh masyarakat pengguna transportasi dan pejalan kaki serta sekitar PLTU juga dengan kualitas yang lebih baik lagi. Hal ini menjadikan masyarakat pengguna transportasi dan PLTU sebagai lingkungan sosial menjadi berkelanjutan. Hal ini dikarenakan terkuranginya dampak turunan yang timbul terhadap kesehatan masyarakat. Dengan demikian harmonisasi antara ketiga komponen lingkungan hidup yaitu RTH sebagai lingkungan alam, kegiatan trasportasi dan PLTU sebagai lingkungan buatan, dan masyarakat pengguna transportasi dan masyarakat yang berada sekitar PLTU sebagai lingkungan sosial menjadi sebuah keharusan untuk lingkungan yang berkelanjutan di sektor transportasi dan PLTU. Katakunci: Emisi, Lingkungan alam (RTH), Lingkungan buatan (transportasi dan PLTU), Lingkungan berkelanjutan
Amonium and Nitrate Of Soil In Relation To Water Table Fluctuation At The Tidal Rice Fields
No full textThe reclaimed lowlands of Indonesia with the respective of 256 hectares of secondary block consist of 16 hectares of tertiary blocks, were used for rice plant production. Paddy was planted during the rainy season of November to February. It was followed by water melon plant in March to May. Then corn was growed in the dry season of June to September finally. Fluctuations of water table in the farm is very crucial in determining the cropping calender. Water management with free drainage approach is influenced by tidal water movement into the tertiary canals bordering the farmers fields. A constant water retention -10 cm below the canal bank has increased the water table in the farm from -10 cm to +20 cm. Water retention (controlled drainage) mode was applied by the farmers especially during the rice growing period. The release of water in the canal to a depth of -50 cm below the canal bank had lowered the water table level to -20 cm. During almost 200 days of experimental work, soil and water samples were taken by 11 times. The content of NO3-, NH4+and pH of the soil sample and be analyzed in relation to the water table fluctuation. Groundwater level does not show the effect on nitrate release on the urea application stocked. however, on the high ground water level it appears to be more in control of ammonium release compared to the ground water level of -20 cm
Impact of Coal Sales on Revenue Sharing Fund And Environment in The South Sumatra Province
Get PDFAbstract. Coal prices between 2006-2015 trend was fluctuate but tend to decrease every year and affect regional income, especially South Sumatra Province. Coal prices fluctuation are influenced by several factors, the decline of world oil prices, coal production surplus, and China imports restriction. Coal mining industry also give a direct impact to the environment especially effect to work environment for the company workers and the people environment around mining. The coal mining company absorbs local labor so as to increase local revenues from individual income taxes. This research use quantitative approach using Ordinary Least Square (OLS) analytical method with E-views 7 software. Multiple linier regression technique also applied. The Secondary data is time series of 2006 - 2015. The results presented in form of tables, images and narration. From this research can be drawn conclusion that price fluctuations have no effect on regional income, but production sold has an effect on regional income. Keywords: Sale, price, royalty, Personal Income Tax Article 21, and Personal Income Tax Article 25/29 Abstrak (Indonesian)Harga batubara kurun 2006-2015 mengalami fluktuasi sehingga berpengaruh terhadap pendapatan Provinsi Sumatera Selatan. Fluktuasi harga batubara dipengaruhi oleh beberapa hal yaitu menurunnya harga minyak dunia, adanya kelebihan produksi batubara, dan pembatasan impor batubara oleh Cina. Industri pertambangan batubara memberikan dampak terhadap lingkungan salah satunya tenaga kerja. Perusahaan pertambangan batubara menyerap tenaga kerja lokal sehingga meningkatkan pendapatan daerah dari pajak penghasilan perorangan. Penelitian ini merupakan penelitian kuantitatif dengan metode analisis yang digunakan Ordinary Least Square (OLS) dengan software E-views 7.0. Teknik analisa data secara regresi linier berganda. Data sekunder merupakan time series periode tahun 2006 – 2015. Data dan hasil penelitian disajikan dalam bentuk tabel dan gambar serta narasi untuk menginterpretasikan data tersebut. Dapat disimpulkan fluktuasi harga tidak berpengaruh terhadap pendapatan daerah, tapi produksi terjual berpengaruh terhadap pendapatan daerah. Kata Kunci : Penjualan, harga, royalti, PPh pasal 21, dan PPh Pasal 25/29
Identification Of Solid Waste Management System In Household At Palembang City
Get PDFIncreasing number of population give the impact of solid waste generation. Solid waste from household activity is about 55-80% of all waste in city which is composed of organic and inorganic waste. The important thing of solid waste management system is to know the characteristics of sources waste especially household as a step in improving solid waste management system in Palembang city. The aim of this study was to calculate solid waste generation of household in Palembang city and to identify composition and solid waste management system in household which has applied for along time. The research method is observation survey in 3 low income household dan 3 high income household respectively numbered 20. From the result will be analysis with statistic metode to see the relationship of the sampel using Anova one way. The amount of weight and volume of waste generation in low income household is 0.91 kg / person / day and 1.51 liters / person / day. The amount of the weight and volume of waste at high home income is 0.79 kg / person / day and 1.63 liters / person / day. In low income household produce more organic waste than high income household
Slab Quality and Environmental Degradation with The Addition of Additives and Coagulant
Get PDFAbstract : This research used ammonium chloride at doses of 0%, 0.15%, 0.30% and 0.45% with 0% dose, 0.15%, 0.30% and 0.45% while formic acid and liquid smoke coagulants. The objective of this research is to determine the effects of the addition of additives (NH4Cl) and the type of coagulants on the quality slab degradation. The observed parameters were the value of dry rubber content (%), initial plasticity (Po), plasticity retention index (PRI), ash content (%), volatile matter (%) and Mooney viscosity. The results showed that doses ammonium chloride and coagulants affected to the value of dry rubber content (%), initial plasticity (Po), plasticity retention index (PRI), ash content (%), volatile matter (%) and Mooney viscosity. The treatment dose 0.45% ammonium chloride with coagulant has the best combination treatment reason it produced slab with dry rubber content 46.517%, initial plasticity 45, plasticity retention index 94, ash content 0.278%, volatile matter 0.604% and Mooney viscosity 72.Keywords: Ammonium chloride, coagulants and slab. Abstrak (Indonesian) : Penelitian ini menggunakan amonium klorida dengan dosis 0%, 0,15%, 0,30% dan 0,45% sedangkan jenis koagulan asam format dan asap cair. Penelitian ini dilakukan untuk mengetahui pengaruh penambahan zat aditif (NH4Cl) dan jenis koagulan terhadap degradasi mutu sleb. Parameter yang diamati adalah kadar karet kering (%), plastisitas awal (Po), indeks retensi plastisitas (PRI), kadar abu (%), kadar zat menguap (%), viskositas Mooney. Hasil penelitian menunjukkan bahwa penambahan dosis amonium klorida dan jenis koagulan berpengaruh nyata terhadap kadar karet kering (%), plastisitas awal (Po), indeks retensi plastisitas (PRI), kadar abu (%), kadar zat menguap (%), viskositas Mooney. Perlakuan dosis amonium klorida 0,45% dengan koagulan asam format merupakan perlakuan terbaik menghasilkan kadar karet kering 46,517%, plastisitas awal 45, indeks retensi plastisitas 94, kadar abu 0,278% , kadar zat menguap 0,604% dan viskositas Mooney 72.Kata Kunci: Amonium klorida, koagulan dan sleb
Genetic Relatedness Of Local Varieties Of Rice South Sumatra Based On Polymerase Chain Reaction – Random Amplified Polymorphic DNA (PCR-RAPD)
Get PDFDiversity 22 local varieties of rice South Sumatra has the potential to be developed into rice varieties. The similarity (similarity) among 22 local varieties of rice South Sumatra became one of the obstacles for scientists to develop rice varieties. One solution to this problem is to determine the genetic relatedness between 22 rice local vaietas South Sumatra. Identification of genetic relatedness among 22 local varieties of rice South Sumatra can be carried out using PCR-RAPD. This study aims to determine the phylogenetic relationship among 22 local varieties of rice South Sumatra. This research about DNA isolation and visualitation has been carried out in August 2015 until December 2015 in Microbiology Laboratory and Laboratory of Genetics and Biotechnology, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Sriwijaya and research about DNA quality and quantity test and PCR-RAPD has been done in Biotechnology Labotory Faculty of Mathematics and Natural Sciences, Sriwijaya University. Obtained 22 local varieties of rice accessions South Sumatra. Genetic relatedness identified using PCR-RAPD technique. 7 primer (OPA, OPA-9, OPA-10, OPA-13, OPA-16, OPA-19, OPB-8) was used for amplification. Local varieties of rice South Sumatra is divided into two major groups in association coefficient of 0.76, namely groups A and B. Group A consists of groups A1 and A2 in association coefficient of 0.78. In the large group B also consists of two groups: the B1 and B2 in association coefficient of 0.84. Local varieties of rice genetic relatedness South Sumatra are not influenced by geographical location.Keywords: Local Varieties Of Rice South Sumatra, Genetic Relatedness, PCR-RAP
Analysis of Remoteness Effect of Indigenous Coconut (Cocosnucifera L.) Commodity on Farmers Profit at Tidal Lowland Area of Jambi Province-Indonesia
Get PDFThe research objectives were to analyze pressure magnitude condition in forms of: 1) the excess supply of indigenous coconut commodity on farmers profit and 2) remoteness location of indigenous coconut plantation on farmer’s profit. The method used in this research was field survey which was conducted from November 2015 to March 2016at two Districts of Tanjung Jabung Barat and Tanjung Jabung Timur of Jambi Province distributed at several Sub districts. Data was collected by using questionnaires for 100 respondents and was analyzed by using software of SPSS 20.The results showed the following facts: 1) indigenous coconut had characteristics of excess supply and mostly found at isolated plantation sites, 2) each characteristics of indigenous coconut commodity had negative effect on profit received by farmers. Therefore, local government policy is required to manage specific characteristics of indigenous coconut commodity at this area in form of proper policy strategy such as creating the added value of product through processing of coconut derivative product (product diversification) especially at famers level which located close to plantation sites.Key words: Remoteness, indigenous coconut, profit, farmer, tidal lowlan
The Relationship of Culture Media Composition and Chemical Composition on Spirulina sp for Metal Ion Adsorbent
Get PDFThe analysis relationship of Spirulina sp medium with chemical composition has been conducted. Chemical analysis was performed using X-Ray Fluorescence analysis. Furthermore, potention of Spirulina sp as adsorbent of metal ions was analyzed using FTIR spectroscopy. The results showed that metals such as Zn, Fe, Mn, Ca, Cu, and Mo were mainly metals in Spirulina sp. These metals were not correlated with cultivated medium of Spirulina sp. Analysis of potention Spirulina sp as metal ions adsorbent showed that Spirulina sp has functional groups –C=O and –OH as ligand. Intercation of metal ions Cu(II) and Cr(III) with Spirulina sp indicated that metal ions bond to –C=O functional group.Keywords: Spirulina sp, media composition, chemical content, metal ion, adsorptionAbstrak (Indonesian): Telah dilakukan analisis hubungan komposisi media Spirulina sp dengan kandungan kimia yang dimilikinya. Analisis kandungan kimia dilakukan dengan X-Ray Fluorescence. Selanjutnya potensi Spirulina sp sebagai adsorben dalam mengikat ion-ion logam dianalisis menggunakan spektroskopi FTIR. Hasil penelitian menunjukkan bahwa logam Zn, Fe, Mn, Ca, Cu, dan Mo merupakan logam utama yang terkandung dalam Spirulina sp. Logam-logam tersebut diasumsikan tidak berasal dari medium tumbuh Spirulina sp. Analisis terhadap potensi Spirulina sp sebagai adsorben logam berat menunjukkan bahwa Spirulina sp memiliki gugus fungsional -C=O dan –OH yang potensial sebagai ligan. Interaksi ion logam Cu(II) dan Cr(III) dengan Spirulina sp menunjukkan bahwa ion logam terikat pada gugus –C=O.Kata kunci: Spirulina sp, komposisi media, kandungan kimia, ion logam, adsorps
Effect of Ground Vibration to Slope Stability, Case Study Landslide on The Mouth of Railway Tunnel, Gunung Gajah Village, Lahat District
Get PDFSlope stability around railway tunnel in Gunung Gajah Village, Lahat District needs to be analysed due to landslide which occurred on January, 23th 2016. That analysis needs to be done so that the railway transportation system can run safely. The purposes of this research are: to find out the factors that cause slope instability, to find out peak acceleration caused by railway traffic and earthquakes and its effects to the safety factor of slope, and determine stabilization method in order to prevent the occurrence of further landslide. The research activities include surveying, sampling, laboratory testing and analyzing slope stability using pseudo-static approach. Based on research result, the main factors that cause slope instability are morphology, structural geology, and ground vibration caused by earthquakes. Ground vibration are correlated to the slope instability. It shows that the higher of peak acceleration the lower of safety factor of slope. To prevent the occurrence of further landslide around research area, stabilization method should be applied in accordance with the conditions in that area such as building a retaining wall to increase safety factor of slope, building draining channels to reduce run off and performing shotcrete in the wall of landslide in order to avoid weathering.Keywords: ground vibration, slope stability, stabilization metho