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All Journal Jurnal Teknologi Industri Pertanian Jurnal Pusat Inovasi Masyarakat (JPIM)
Prayoga Suryadharma
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Agriculture, Biological Sciences & Forestry Engineering Industrial & Manufacturing Engineering Social Sciences

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Kinetics Of Isothermal Adsorption Of Β-Carotene From Crude Palm Olein Using Bentonite . Muslich; Prayoga Suryadharma; R. Indri R. Hayuningtyas
Jurnal Teknologi Industri Pertanian Vol. 19 No. 2 (2009): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

The adsorption of β-carotene from crude palm olein by using bentonite was investigated. Another adsorbent, which is activated carbons was used as a reference. The adsorption process of β-carotene was done using a mixed reactor. The objectives of this research are to obtain the equilibrium condition and the value of kinetics parameters, which are adsorption rate constant (k) and activation energy (Ea) of isothermal adsorption of β-carotene from crude palm olein using bentonite and activated carbons.  The achievement of equilibrium condition was influenced by adsorption process temperature. Higher adsorption temperature led to faster equilibrium time, but give the different influence for the value of β-carotene concentration in olein (μg/ml) for each adsorbents. Bentonite showed a faster equilibrium time (minute) and lower β-carotene concentration in olein (μg/ml) than activated carbons. For both adsorbents used, Freundlich isotherm model showed a good fit to the adsorption of β-carotene. The adsorption rate constant (k) was ascend by the higher of adsorption temperature. The activation energy of adsorption (Ea) was determined as bentonite 74,28 kcal mol-1 and activated carbons 30,04 kcal mol-1. Value of activation energy (Ea) indicates that adsorption process of β-carotene from crude palm olein by using activated carbon is more effective than that of bentonite.Keywords : adsorption, β-carotene, crude palm olein, bentonite.
Analisis Pengelolaan Sampah dan Willingness To Pay (WTP) Masyarakat di Desa Purwasari Mochammad Faroz Daq; Prayoga Suryadharma
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 5 (2020): Juli 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

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Abstract

Garbage is an endless problem to be discussed because every activity will definitely produce rubbish and so it happens in Purwasari Village. The habit of burning rubbish and the problem in the waste management are the main problems in Purwasari Village. The purpose of this study was to determine the community's waste management and Willingness to Pay (WTP) system for waste management efforts in Purwasari Village. The research uses qualitative research method with descriptive observational design. Research techniques carried out by means of field surveys, open interviews, and literature studies. The results of the study stated that waste management in the village was still inadequate due to the lack of land for the construction of temporary shelters and landfills and the low level of public awareness of the importance of managing waste properly and correctly. Suggestions that can be given are by conducting socialization about good and correct waste management and entering the budget for land acquisition that will be used for temporary shelters and final disposal. Keywords : Garbage, waste management, willingness to pay.
Co-Authors . Muslich Mochammad Faroz Daq R. Indri R. Hayuningtyas