VALIDATION ANALYSIS OF CYANIDE VAPOR MEASUREMENTS WITH FUGACITY MODEL AT SEVERAL CONCENTRATIONS OF GOLD EXTRACTION BY CYANIDATION PROCESS (CASE STUDY: PT. ANTAM TBK)

• Main Author: Rakhmawati, Ina
• Format: Theses
• Language: Indonesia
• Subjects: Hukum perdata
• Online Access: https://digilib.itb.ac.id/gdl/view/80691
• Institution: Institut Teknologi Bandung

Cyanide is a toxic chemical that is very high. Risks associated with the use of cyanide is the exposure of workers by hydrogen cyanide gas. When contaminants are released into the environment are many factors that influence such as transport, accumulation, transformation, and degradation. Models trying to predict the partition fugasitas chemicals in the environment. The role of model calculations fugasitas as a tool that will receive the available input data, process, and provide relevant data output. Predictions of this model may not be very accurate, but the model can be consistent, repeatable, transparent, and can be validated to some extent by comparing the predictions of the model with direct observations in the field. The model used to validate the measurement of cyanide vapor is fugasitas model level I. Excess of fugasitas model calculation is used to compare differences in the level of contaminants in different environmental media and organisms. The research was conducted at PT. Antam tbk. The study was conducted with cyanide vapor measurement results validate the model fugasitas level 1. The results in the can that model fugasitas level 1 is more consistent than cyanide vapor measurements at the plant I and Process Plant II with a value of R2 results of linear regression analysis was 96% that the model fugasitas reach equilibrium with closed system, equilibrium, dan steady state asumsition results of research whereas the measurements results have not yet reached equilibrium with the uncertainty of measurements of calibration, instrumentation, and sampling and uncertainty of model not found Henry’slaw constanta in literature at 400 degrees