Garuda - Garba Rujukan Digital

Arief Sabdo Yuwono

Unknown Affiliation

Author-ID : 2545336

Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Energy Environmental Science

Published : 6 Documents Claim Missing Document

Claim Missing Document

Articles

Title

1

Municipal solid waste or MSW has potency to be decomposed by microorganisms and trasformed into compost. The waste contains 60%-75% of organic materials C, H, O, and N. The aim of this research was to develop a simulation model based on mathematical equations describing the phenomenon of the composting. The population of microorganisms , the rate of O2 consumption , the rate of CO2 production , the rate of H2O production, the rate of carbon nitrogen ratio or C/N, and temperature were the v Yohanes Setiyo; Hadi K. Purwadaria; Arief Sabdo Yuwono; M. Ahkam Subroto
Forum Pasca Sarjana Vol. 30 No. 1 (2007): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Municipal solid waste or MSW has potency to be decomposed by microorganisms and trasformed into compost. The waste contains 60%-75% of organic materials C, H, O, and N. The aim of this research was to develop a simulation model based on mathematical equations describing the phenomenon of the composting. The population of microorganisms , the rate of O2 consumption , the rate of CO2 production , the rate of H2O production, the rate of carbon nitrogen ratio or C/N, and temperature were the variables tested in this research. Validation was carried out by comparing datum of simulation model with datum of composting. Simulation model was declared valid if the values of each parameter were r2 > 0.75, the total value of Err was closed to zero, and the distribution of Err was independent to time. The sensitivity test was analyzed by comparing the value changes of variable tied with the value changes of free variable. Correction from the simulation model in predicting the microorganism population, CO2, O2, and temperature could be expressed respectively as y’ = 1.06(y-1.003), y’ = 1.07(y+ 0.07), y’ = 1.02(y+ 0.05), and y’ = 1.02(y - 1.05). The temperature, the C/N and the rate of O2 consumption were sensitive to the changes of microorganism population and the radius of the bioreactor. Key words: composting, organic materials, simulation, bioreactor

Reconstruction of The Inner Baduy’s Ecohouse Structure in Banten Province Meiske Widyarti; Budi Indra Setiawan; Hadi Susilo Arifin; Arief Sabdo Yuwono
Forum Pasca Sarjana Vol. 35 No. 1 (2012): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Environment quality has been worsening year by year; and building’s sector contributes 66% of fossil fuels pollution’s sources. The technique in building constructions needs to changing in order to increase environmental friendly manner. Indigenous people, such as the Inner Baduy community, from longstanding experience have developed systems as their local wisdoms adapting to its environment and houses in a sustainable manner. The objective of this study is to emphasize the importance of traditional knowledge in terms of providing low input energy buildings and settlement. A reconstruction of the Inner Baduy house has been drawn as a documentation of an Indonesian traditional house building in a tropical humid climate. The reconstruction is presented in a form of a technical drawings such as plan, view and section drawing by using SkecthUp computer program. Baduy local wisdom of community is significant in houseing structure development process. Indications by all the structure materials is taken from local sources such as rumbia roof and bamboo’s wall are taken from leuweung lembur and bantaran sungai. Development system’s local wisdom also very economic and efficient using pre-fabrication system. Key words: ecological design, environmental friendly, traditional building, sustainable construction

Title Search

Found 2 Documents Search Journal : Forum Pasca Sarjana

Abstract

Abstract

Title

Found 2 Documents
Search
Journal : Forum Pasca Sarjana