scholarly journals Investigation and Basic Research of a Small-Scale Methane Fermentation System Using Heat from a Hot Spring

2012 ◽  
Vol 91 (9) ◽  
pp. 892-899
Author(s):  
Takashi SUZUKI ◽  
Ryosuke TAJIMA ◽  
Chika TADA
Keyword(s):  
Hot Spring ◽  
Basic Research ◽  
Small Scale ◽  
Methane Fermentation ◽  
Fermentation System

scholarly journals The Effect of a Small-scale, Distributed Methane Fermentation System on a Medium-sized Pig Farm

2019 ◽  
Vol 30 (0) ◽  
pp. 95-102
Author(s):  
Rikiya Takasaki ◽  
Takeshi Yamada ◽  
Motoki Nishimura ◽  
Hirotsugu Kamahara ◽  
Yoichi Atsuta ◽  
...  
Keyword(s):  
Small Scale ◽  
Methane Fermentation ◽  
Fermentation System ◽  
Pig Farm

scholarly journals Study of a Two-phase Methane Fermentation System Equipped with Solubilization Treatment

2013 ◽  
Vol 42 (4) ◽  
pp. 235-244
Author(s):  
Kazumasa TONOOKA ◽  
Takuya EBISAWA ◽  
Akihiro NAGANO ◽  
Akihiro OHNISHI ◽  
Naoshi FUJIMOTO ◽  
...  
Keyword(s):  
Methane Fermentation ◽  
Two Phase ◽  
Fermentation System

Survey of Combined Hydrogen-Methane Production in Anaerobic Baffled Reactor (ABR)

2012 ◽  
Vol 550-553 ◽  
pp. 3180-3183 ◽  
Author(s):  
Guo Chen Zheng ◽  
Jian Zheng Li ◽  
Wei Li ◽  
Zhu Jun Tian ◽  
Shuang Shi Dong ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Phase Separation ◽  
Environmental Pollution ◽  
Methane Production ◽  
Biological Treatment ◽  
Methane Fermentation ◽  
Anaerobic Reactor ◽  
Fermentation System ◽  
Anaerobic Baffled Reactor ◽  
Stage Process

Anaerobic fermentative technology is an important route to solving environmental pollution and resources problems. Combined hydrogen and methane production in a two-stage process is a concept which has been developed in recent years Anaerobic biological treatment organic wastewater can produce large amounts of hydrogen and methane，which can be used as energy carrier. At present，the research focusing on the adjustment of fermentation hydrogen-methane production has been conducted. Furthermore, the simultaneous hydrogen-methane production was tested and optimized. However, it lacked combined hydrogen-methane production in an anaerobic reactor in literature so far. Based on preview experiment, the paper studied the simultaneous hydrogen-methane fermentation in an anaerobic baffled reactor (ABR) system. ABR has the advantage of biomass phase separation and integration of acidogenic and methanogenic processes to simultaneously conduct hydrogen-methane production during wastewater treatment. Through deep biohydrogen production, it can enhance the activity of hydrogen-producing acetogens (HPA) and the efficiencies of the combined hydrogen-methane fermentation system. It showed to enhance the activity of HPA was the key to the combined hydrogen-methane production.

scholarly journals Methods and Practices for Institutional Benchmarking based on Research Impact and Competitiveness: A Case Study of ShanghaiTech University

2019 ◽  
Vol 4 (3) ◽  
pp. 55-72 ◽  
Author(s):  
Jiang Chang ◽  
Jianhua Liu
Keyword(s):  
Research Output ◽  
Basic Research ◽  
Research Impact ◽  
Small Scale ◽  
Main Research ◽  
Topic Maps ◽  
Composite Indices ◽  
The University ◽  
Dimensional Assessment

Abstract Purpose To develop and test a mission-oriented and multi-dimensional benchmarking method for a small scale university aiming for internationally first-class basic research. Design/methodology/approach An individualized evidence-based assessment scheme was employed to benchmark ShanghaiTech University against selected top research institutions, focusing on research impact and competitiveness at the institutional and disciplinary levels. Topic maps opposing ShanghaiTech and corresponding top institutions were produced for the main research disciplines of ShanghaiTech. This provides opportunities for further exploration of strengths and weakness. Findings This study establishes a preliminary framework for assessing the mission of the university. It further provides assessment principles, assessment questions, and indicators. Analytical methods and data sources were tested and proved to be applicable and efficient. Research limitations To better fit the selective research focuses of this university, its schema of research disciplines needs to be re-organized and benchmarking targets should include disciplinary top institutions and not necessarily those universities leading overall rankings. Current reliance on research articles and certain databases may neglect important research output types. Practical implications This study provides a working framework and practical methods for mission-oriented, individual, and multi-dimensional benchmarking that ShanghaiTech decided to use for periodical assessments. It also offers a working reference for other institutions to adapt. Further needs are identified so that ShanghaiTech can tackle them for future benchmarking. Originality/value This is an effort to develop a mission-oriented, individually designed, systematically structured, and multi-dimensional assessment methodology which differs from often used composite indices.

scholarly journals ANALISIS FINANSIAL USAHA IKAN ASAP PINEKUHE DI KABUPATEN KEPULAUAN SANGIHE

2015 ◽  
Vol 3 (6) ◽  
Author(s):  
Danny Rofiyanto Bue ◽  
Jardie A. Andaki ◽  
Jeannette F. Pangemanan
Keyword(s):  
Financial Analysis ◽  
Basic Research ◽  
Small Scale ◽  
Efficient Production ◽  
Smoked Fish ◽  
Financial Factors ◽  
Maximum Benefit ◽  
Rate Of Profit ◽  
Made In

Abstract Pinekuhe smoked fish business is often faced with the lack of capital and lack of management in an effort to increase production. The lack of efficient production processes in the suspect is a problem that arises due to ignorance of the fishermen in regulating the financial factors of production, that the maximum benefit is not achieved. Based on these things, then the problem can be formulated as follows: What are the factors that affect the business financial analysis of smoked fish Pinekuhe in the rate of business profits smoked fish Pinekuhe in Tahuna Sangihe Islands Regency. As well as how to optimize financial Pinekuhe smoked fish in order to achieve the maximum rate of profit. The purpose of this study, namely 1) make a financial analysis of smoked fish business Pinekuhe Tahuna on Sangihe Islands Regency and 3) to study the rate of profit on Pinekuhe smoked fish business. Basic research will be used is a case study, the research form by studying a particular case in which the object is limited (Widi, 2010). The results showed that the sale of smoked fish "pinekuhe" conducted only in the area of ​​Market Towo'e in Tahuna. Sales made in addition to the market Towo'o Tahuna also based on orders from customers. Based on the criteria of financial analysis efforts smoked fish "pinekuhe" in Tahuna eligible to run. Small-scale enterprises of smoked fish business "pinekuhe" causes the value of a little profit. Keywords: pinekuhe, smoked fish, financial analysis Abstrak Usaha ikan asap Pinekuhe seringkali dihadapkan pada keterbatasan modal dan kurangnya manajemen dalam upaya peningkatan produksi. Ketidak efisiennya proses produksi di duga merupakan suatu masalah yang timbul akibat ketidaktahuan nelayan dalam mengatur finansial pada faktor-faktor produksinya, sehingga keuntungan maksimal tidak tercapai. Berdasarkan hal-hal tersebut, maka dapat dirumuskan permasalahan sebagai berikut : Faktor apa saja yang berpengaruh pada analisis finansial usaha ikan asap Pinekuhe dalam tingkat keuntungan usaha ikan asap Pinekuhe di Tahuna Kabupaten Kepulauan Sangihe. Serta bagaimana cara mengoptimalkan finansial ikan asap Pinekuhe agar tercapai tingkat keuntungan secara maksimal. Tujuan penelitian ini, yaitu 1) membuat analisis finansial usaha ikan asap Pinekuhe Tahuna di Kabupaten Kepulauan Sangihe dan 3) mempelajari tingkat keuntungan pada usaha ikan asap Pinekuhe. Dasar penelitian yang akan digunakan adalah studi kasus, yaitu bentuk penelitian yang dilakukan dengan cara mempelajari suatu kasus tertentu pada obyek yang terbatas (Widi, 2010). Hasil penelitian menunjukkan bahwa penjualan ikan asap “pinekuhe” dilakukan hanya di wilayah Pasar Towo’e di Tahuna. Penjualan dilakukan selain di Pasar Towo’o Tahuna juga dilakukan berdasarkan pesanan dari konsumen. Berdasarkan kriteria analisis finansial usaha ikan asap “pinekuhe” di Tahuna layak dijalankan. Skala usaha yang kecil dari usaha ikan asap “pinekuhe” menyebabkan nilai keuntungan sedikit. Kata kunci: pinekuhe, ikan asap, analisis financial

Field test of methane fermentation system for treating swine wastes

2002 ◽  
Vol 45 (12) ◽  
pp. 103-112 ◽  
Author(s):  
N. Kataoka ◽  
T. Suzuki ◽  
K. Ishida ◽  
N. Yamada ◽  
N. Kurata ◽  
...  
Keyword(s):  
Water Content ◽  
Field Test ◽  
Biogas Production ◽  
Screw Press ◽  
Methane Content ◽  
Test Plant ◽  
Methane Fermentation ◽  
Fermentation System ◽  
Ignition Loss ◽  
Pre Treatment

A methane fermentation system for treating swine wastes was developed and successfully demonstrated in a field test plant (0.5 m3/d). The system was composed of a screw-press dehydrator, a methanogenic digester, a sludge separator, an oxidation ditch (OD) and composting equipment. A performance evaluation was carried out regarding physical pre-treatment using the screw-press dehydrator, methane fermentation for pre-treated slurry, and post-treatment for digested effluent by OD. Total solids (TS) and chemical oxygen demand (CODCr) removal by the screw-press pre-treatment were 38% and 22%, respectively. Properties of the screenings were as follows: water content 57%, ignition loss 93%, specific gravity 0.33. The pretreated strong slurry was digested under mesophilic conditions. Digestion gas (biogas) production rate was 25 m3/m3-slurry (NTP) and methane content of the biogas was 67%. CODCr removal of 65% with methane fermentation treatment of the slurry operating at 35°C was observed. No inhibition of methane fermentation reaction occurred at the NH4+-N concentration of 3,000 mg/l or less during methane fermentation by the system. Mass balance from the present pilot-scale study showed that 1m3 of mixture of excrement and urine of swine waste (TS 90 kg/m3) was biologically converted to 25 m3/m3-slurry (NTP) of biogas (methane content 67%), 100 kg of compost (water content 40%, ignition loss 75%), and 0.80 m3 of treated water (SS 30-70 mg/l).

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