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PENGARUH LAJU UMPAN LIMBAH CAIR INDUSTRI GULA RAFINASI TERHADAP PRODUKSI BIOGAS (ENERGI TERBARUKAN)
Get PDFBiogas is an alternative fuel that is environmentally friendly and can be produced using raw materials from solid orliquid waste containing organic compounds. The raw material for making biogas in this study is to use raw materialsfor the refined sugar industry’s liquid waste with the aim that the industrial liquid waste can be optimized for itsutilization so that it does not become a pollutant for the environment and can produce renewable energy and becomealternative fuels for industries and household. In long term, it is also hoped that the result of this fuel can be convertedinto electrical energi. Along with that the results of this research are expected to establish cooperative relations with theindustrial world regarding the processing of liquid waste. The research strategy was carried out by acclimatizing thestarter of refined sugar liquid waste (70%) with cow dung (30%) for 21 days. Acclimatization for 21 days gives a biogasflame in blue and stable condition. The next process is the feed process (in this step the bait is liquid waste) withvariation of 0.5 L and 1,5 L in a semi-continuous biodigester with a capacityof 20 L with an operating volume of 16 L.The purpose of this study was (1) to determine the effect of bait composition (0,5 L/day, 1 L/day, 1,5 L/day) refinedsugar industry waste water on biogas production with good methane gas content (flame test). (2) Determinethe optimumtime to produce steady state condition for biogas production with good methane gas (blue flame). The result of theresearch on the feed process, the production of biogas are increased but the methane gas formed decreased (dead flame).Biogas on feed substrate 0,5 L and 1 L produce biogas with bluef lame until 5th feed (day 30) and feed volume 1,5 Lproduces blue flame until 4th feed (day 28)
PEMANFAATAN LIMBAH CAIR INDUSTRI GULA RAFINASI SEBAGAI BAHAN BAKU PEMBUATAN ENERGI TERBARUKAN (BIOGAS)
Get PDFWaste liquid of Sugar industry has characteristics of having high organic ingredients. This is indicated bythe value of Chemical Oxygen Demand (COD) around ± 7,000 - 10,000 mg /L, TDS ± 1000 - 2.000 mg /L. The aim ofthis study is to determine the influence of substrate composition (liquid waste of sugar factory, LG) with starter / cowdung (TASI) with composition 50%: 50%; 60%: 40%; 70%: 30%, optimum time of the fermentation process and slurryparameters of COD, VFA, in biodigester to biogas production with good methane gas (flame test). The experimentresults show that the production of biogas in the composition of liquid wastes of the sugar factory (LG: TASI) of 50%:50%, 60%: 40%, and 70%: 30% can produce flame from day-10th to day-14th and a blue flame at a 50%: 50%composition on the day-28th (twenty eighth day), at a composition of 60%: 40% at day-24th (twenty fourth day) and at acomposition of 70%: 30% on day-21th, so the optimum time for biogas production on LG composition: TASI) 50%:50%, 60%: 40%, and 70%: 30% are in the day of 28th, 24th, 21st with biogas product with blue color flame the (whichindicates high levels of methane gas), and the COD slury parameters, VFA in biodigester provide good conditions forbiogas production with blue flame (methane gas)
PENGOMPOSAN CAMPURAN SAMPAH ORGANIK DENGAN KOTORAN KAMBING MENGGUNAKAN MIKROORGANISME DARI RAGI
Get PDFPENGOMPOSAN CAMPURAN SAMPAH ORGANIK DENGAN KOTORAN KAMBINGMENGGUNAKAN MIKROORGANISME DARI RAG
IbMPETERNAK RAMAH LINGKUNGAN DI DESA BONTOLOE KECAMATAN BONTOLEMPANGAN, KABUPATEN GOWA
Get PDFIbMPETERNAK RAMAH LINGKUNGAN DI DESA BONTOLOE KECAMATAN BONTOLEMPANGAN, KABUPATEN GOW
Pemberdayaan Ibu-Ibu Majelis Taklim AT-Taqwa Melalui Pelatihan Mengolah Ubi Jalar Ungu Menjadi Produk Makanan di Kelurahan Sudiang Kecamatan Biringkanaya Kota Makassar
No full textPemberdayaan Ibu-Ibu Majelis Taklim AT-Taqwa Melalui Pelatihan Mengolah Ubi Jalar Ungu Menjadi Produk Makanan di Kelurahan Sudiang Kecamatan Biringkanaya Kota Makassa
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
IbM PEMBERDAYAAN PETANI PADI DALAM PENGGUNAAN PUPUK SRF (SLOW REALASE FERTILIZER) DI DESA JENETAESA KECAMATAN SIMBANG KABUPATEN MAROS
Get PDFIbM PEMBERDAYAAN PETANI PADI DALAM PENGGUNAAN PUPUK SRF (SLOW REALASEFERTILIZER) DI DESA JENETAESA KECAMATAN SIMBANG KABUPATEN MARO
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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