Browsing by Author "Wathoni, Akda Z."

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    THE EFFECT OF APPLICATION OF SCOR & HOR PHASE 1 & 2 METHODS IN ANALYZING RISK AND STRATEGY DESIGNING IN THE SUPPLY CHAIN PART OF PT. Unicharm Indonesia.
    (International Journal of Psychosocial Rehabilitation, Vol. 24, Issue 1, 2020) Sayuti, Muhamad; Wathoni, Akda Z.; Kaniawati, Keni
    In supply chain activities there is always the potential for risk to arise, therefore risk management is very necessary for handling risks. PT. Unicharm Indonesia is a manufacturer of baby diapers, adult diapers, sanitary napkins and wet tissue no. in Indonesia it is no wonder that supply chain activities are so complex. And potentially full of risks. Therefore, it is necessary to do a risk analysis and design of mitigation actions, to mitigate risks or disturbances that have the potential to arise in the supply chain process of raw materials until the finished product is ready to sell to the market. This research was conducted using the house of risk model consisting of 2 phases and with the SCOR concept. The first phase is the identification of risks and risk agents, which then measure severity and occurance levels and calculate aggregate risk priority (ARP) values. Whereas in the second phase, it is the spread of strategies to reduce the risks that occur. After doing the research there are 29 risk events and 45 risk agents which are then made a paretto diagram to see which risks need to be done in designing strategies to mitigate the risks that occur.
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    THE EFFECT OF MICROSTART ENZYMES ADDITION AND AERATION TIME ON COD REDUCTION
    (International Journal of Psychosocial Rehabilitation, Vol. 24, Issue 1, 2020) Wathoni, Akda Z.; Sayuti, Muhamad; Nugraha, Ucu
    In a wastewater treatment plant in one of the companies in Karawang, some enzyme was added in the aeration tank which aims to reduce the COD content in wastewater. In this study, an observation will be conducted on how much influence the addition of enzyme doses on COD decrease of wastewater. The research method uses the Design of Experiments (DOE) method. Variables include COD content as an dependent variable and enzyme doses as an independent variable with variations in concentration: 0 ppm, 50 ppm, 100 ppm and 150 ppm and variations in aeration time: 0, 1, 2 and 3 hour, data collected directly based on the results of sampling which will be analyzed for COD content. Based on the results of research on enzyme doses significantly influence the decrease in COD content base on the value of f-count > f-table Anova factorial RAL = 43 177.30 > 2.82. In addition, the aeration time also has a significant effect on reducing the COD content. This can be seen from the value of f-count > f-table Anova factorial RAL = 838.63> 2.82. Enzyme dosage and contact time has a significant effect on decreasing COD content. Multiple Linear Regression is Y = 101.303 - 0.055X1 - 19.444 X2 + e. The correlation coefficient number is 95.7% and the coefficient of determination value is 91.6%. From the research data it can be seen that the dose of the microstart enzyme and the optimum contact time is 100 ppm with a contact time of 2 hours. This is indicated by the declining value of COD content reaching 56.3%.