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INDONESIA
Waste Technology
Published by Universitas Diponegoro
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Articles 3 Documents
 1 
Search results for , issue "Vol 1, No 2 (2013)" : 3 Documents clear
Program Analysis and Implementation of Rice Organic Farming System in Semarang Regency Dwi Erlina Estuningtyas; Muniffatul Izzati; Hartuti Purnaweni
Waste Technology Vol 1, No 2 (2013)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1322.655 KB) | DOI: 10.14710/1.2.1-5

Abstract

The Republic of Indonesia Government through the Ministry of Agriculture has launched a program of “Go to Organic 2010” in order to accelerate the development of organic agriculture in some regions of Indonesia. This research aims to study the implementation of organic rice farming systems in District of Susukan, Semarang Regency. Specifically, the objectives of this study were (1) to analyze the program implementation of organic rice farming in the district of Susukan Semarang Regency, and (2) to evaluate the implementation of organic rice farming systems in terms of organic farming standards. The experiment was conducted in the Susukan District of Semarang Regency ranging from April to August 2013. Primary data were obtained from direct observations in the field using a questionnaire at predetermined sample area. Variables observed include correspondence between the implementation of organic rice farming in the community with organic farming criteria. The results showed that the farmers have implemented Organic Rice Farming Systems (ORFS) with a percentage of 83.3 percent and Conventional Farming Systems (CFS) 16.7 percent. The government has had a policy of organic rice farming, among others in the form of socialization in the development of organic rice farming and technical guidance in the development of organic rice farming. In general, community in the Susukan District of Semarang Regency has known environmentally farming of organic rice farming. In the rice farming community has grown organically and still need to be developed. Basically organic paddy cultivation in the district of Susukan District of Semarang Regency actually can not be said to be fully as organic rice farming, or more accurately called as semi-organic farming systems.
EVALUATION OF ORGANIC RICE AGRICULTURE SYSTEM (ORAS) IN THE SEMARANG DISTRICT Dwi Erlina Estuningtyas; Muniffatul Izzati; Hartuti Purnaweni
Waste Technology Vol 1, No 2 (2013)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (188.024 KB) | DOI: 10.14710/1.2.6-9

Abstract

Along with the increasing public awareness of environmental issues, health, and food safety and quality and make awareness of the importance of organic farming in several countries around the world, including in Indonesia is increasing rapidly. This study aims to analyze the program and implementation of organic rice farming system in the District of Semarang. The research was conducted in the District of Semarang District Susukan starting from April 2013 until August 2013. Secondary data used for the analysis and evaluation of organic rice farming program from the data of 5 (five) years. Secondary data were obtained from farmer groups and related agencies such as the Department of Agriculture, Plantation and Forestry, Bappeda, as well as the Agricultural Extension Center. Primary data obtained from direct observations in the field using the questionnaire in the sample set. Primary data from observational observations made in the current year at the sites. Variable / fenomea observed include compatibility between the implementation of organic rice farming in the community with the criteria of organic farming. The results showed that farmers have carried out SPPO with a percentage of 83.3 percent and 16.7 percent SPK. Basically, organic rice cultivation activities in Semarang district actually can not be said to be fully as organic rice farming, or more accurately described as semi-organic farming systems.
Enhanced biogas separation performance of nanocomposite polyethersulfone membranes using carbon nanotubes Tutuk Djoko Kusworo; Budiyono Budiyono
Waste Technology Vol 1, No 2 (2013)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2166.775 KB) | DOI: 10.14710/1.2.10-14

Abstract

This study is performed primarily to investigate the effect of chemical modification on carbon nanotubes surface towards biogas purification performance of mixed matrix membrane. In this study, polyethersulfone (PES)-carbon nanotubes mixed matrix hollow fiber membrane for modified and unmodified carbon nanotubese were spun using dry/wet spinning technique. The modified carbon nanotubes were prepared by treating the carbon nanotubes with acid treatment to allow PES chains to be attached on carbon nanotubes surface. The results from the FESEM, DSC and FTIR analysis confirmed that chemical modification on carbon nanotubes surface had taken place. Meanwhile, the nanogaps in the interface of polymer and carbon nanotubes were appeared in the PES mixed matrix membrane with unmodified of carbon nanotubes. The modified carbon nanotubes mixed matrix membrane increases the mechanical properties, the productivity and purity of biogas compare to neat PES and unmodified carbon nanotubes mixed matrix membrane. For PES-modified carbon nanotubes mixed matrix membrane the maximum selectivity achieved for CO2/CH4 is 32.59.

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