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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains International Journal of Electrical, Energy and Power System Engineering (IJEEPSE)
Wahyu Dwi Reza
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Design Alat Monitoring pH Levels Limbah Cair Hasil Tambang Batubara Berbasis Arduino Uno Wahyu Dwi Reza; Feranita Feranita; Nurhalim Nurhalim
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

In coal mining, to check the pH content of water in liquid waste from coal mining, mining workers mostly use the conventional method, namely by periodically measuring using a digital pH meter or litmus paper. Manual pH reading system makes handling slow. Based on these reasons the research designed a device that can monitor the pH value, the working principle of this tool is that the pH electrode is inserted into the sample solution and then the electrode detects the sample solution and will change the electrical signal where the output will be amplified by an amplifier circuit in the form of an analog voltage and will be converted. by Arduino Uno, analog data is converted into digital data or ADC (Analog To Digital Convertion) so that the results will be displayed on an LCD that is equipped with I2C. And this tool is also equipped with RTC (Real Time Clock) so that it can display the time when data collection on the pH level of the waste. The tool that is designed has an error percentage of the pH meter manufacturer of 0.4969%. By using this tool the authors conclude with 0.4 grams of lime (CaO) on the prototype or 480 kg in real conditions with a ponds area of 600 m3 can reduce the voltage output on the ph sensor from 3.25 V to 2.56 V so that the pH value increases. from 2.73 to 7.61 in pond 4 or dump ponds. Keywords: Coal waste, pH, Arduino Uno, ADC, voltage, chalk (CaO)
Design of pH Measuring Equipment for Liquid Waste from Coal Mining Using Arduino Uno Safrianti, Ery; Feranita; Nurhalim; Wahyu Dwi Reza
International Journal of Electrical, Energy and Power System Engineering Vol. 5 No. 3 (2022): The International Journal of Electrical, Energy and Power System Engineering (I
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.5.3.61-66

Abstract

In coal mining, to check the pH content of the water in the liquid waste from coal mining, most of the mining workers use conventional methods, namely by measuring using a digital pH meter or litmus paper periodically. Manual pH reading system makes handling slow. Based on these reasons the researchers designed a tool that can monitor pH values, the working principle of this tool is that the pH electrode is inserted into the sample solution, then the electrode detects the sample solution and changes the electrical signal, where the output will be amplified by an amplifier circuit in the form of an analog voltage, then on Arduino uno analog data is converted to digital data or ADC (Analog To Digital Conversion) after which it is converted again to pH value and displayed on an LCD that has been equipped with I2C. And this tool is also equipped with an RTC (Real Time Clock) so that it can display the time at which pH data is taken in the waste. The results of the calibration of the pH sensor obtained a linear equation, namely, Y = 25.84 - 7.1211X so that the designed tool has an error percentage of the manufacturer's pH meter tool of 1.028 %. By using this tool, the writer concludes that 0.4 grams of camphor (CaO) on the prototype or 480 kg in real conditions with a pool area of 600 m^3 can reduce the output voltage on the pH sensor from 3.20 V to 2.56 V thereby increasing the pH value. from 3.07 to 7.58 in pool 4 or drain pool.
Co-Authors Ery Safrianti Feranita Feranita Feranita Nurhalim Nurhalim Nurhalim