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All Journal ENVIAGRO International Journal of Research and Applied Technology (INJURATECH)
A Akbar
Jurusan Agroteknologi, FPPB, Universitas Bangka Belitung
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science

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Pemanfaatan Bulu Ayam Dan Komposisi Cangkang Rajungan Untuk Meningkatkan Kualitas Fisik Dan Kimia Kompos Kusmiadi, R; Khodijah, NS; Akbar, A
ENVIAGRO Vol 7, No 2 (2014): ENVIAGRO
Publisher : Universitas Bangka Belitung

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

Abstract

Utilization of waste chicken feather and crab shells as compost material is an alternative to reduce the environmental pollution caused by waste. This research is identify and study the effect of the addition of crab shells during composting of chicken feather in improving the physical and chemical quality compost chicken feather. The composition compost consists of 1.75 kg of chicken feathers  + 0.15 kg of chicken manure + 0.1 kg bran. Treatmentincludesresearch R0 without the addition of crab shells, R1 0,2 kg, R2 0,4 kg, R3 0.6 kg shell crab. This research used a cluster randomized design (RAK) consisting of 4 treatment, which was repeated 3 and each treatment has 3 samples, 36 samples were obtained observations. Observationsonthe observed variableswere analyzedusing theF test. If there is atreatmentthat have areal effect, it willcontinueto usefurthertestingHonestlySignificant Difference(HSD) with a95% confidence level. Physical parameters include is water conten, temperature, and colour of compost. Parameters  chemical  include is N, P, K, Ca, C-Organik, and C/N ratio. The results showedthat theaddition 0.6kg ofcrabshellsonly givethe effectin improving quality pH (7,29%), Ca (6,8%), P (1,16%), N-Total (4,16%). Variablesthat have metquality standardsbySNI19-7030-2004compostisN-total, pH, Ca, C-Organic and Phosphorus.
Determination of Maintenance Method for Turbine Pump Engine Based on Markov Analysis Anthara, I Made Aryantha; Andriani, Diana; Nugraha, M L; Akbar, A
International Journal of Research and Applied Technology (INJURATECH) Vol. 4 No. 1 (2024): International Journal of Research and Applied Technology (INJURATECH)
Publisher : Universitas Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/injuratech.v4i1.13847

Abstract

The purpose of this research is to determine the type of maintenance method that can be applied to the C1107 engine in the company. The C1107 engine is a turbine pump machine used in the manufacture of fertilizers. The main problem discussed in this study is the frequency of damage that occurs in the C1107 engine is quite large, and this will impact the maintenance costs incurred by the company. The types of damage that occurred were categorized into four states, namely good condition, minor, moderate, and high damage. The method used in this research is the Markov analysis method, where, in this method, the value of the transition probability to the steady-state condition will be sought from the transition probability of the failure condition of the CII07 engine used by the company. From the results of the research conducted, it was found that the steady-state status was good, the damage was minor, moderate, and severe, respectively by 11.50, 61.40, 18.70, and 8.40%. The types of maintenance that can be applied are the type of repair maintenance in severe damage conditions and the type of preventive maintenance in moderate damage conditions with a total cost of Rp. 25,042,826. The benefit obtained in this research is to determine the best type of C1107 engine maintenance for the company.
Co-Authors Andriani, Diana Anthara, I.Made Aryantha NS Khodijah Nugraha, M L R Kusmiadi