Image of Perancangan Alat Ukur Kadar Ph Air Pada Limbah Cair Hasil Tambang Batubara Berbasis Arduino Uno
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Perancangan Alat Ukur Kadar Ph Air Pada Limbah Cair Hasil Tambang Batubara Berbasis Arduino Uno

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 values 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 author concludes that 0.4 grams of lime (CaO) in the prototype or 480
kg in real conditions with a pool area of 600 m3 can reduce the output voltage
on the pH sensor from 3.20 V to 2.56 V so that it can increase the pH value
from 3.07 to 7.58 at pond 4 or dump pond.
Keywords: Coal waste, pH, Arduino Uno, ADC, voltage, chalk (CaO)

Ketersediaan
#
Perpustakaan Universitas Riau 07 04. 121 (0067)
07 04. 121 (0067)
Tersedia
Informasi Detail
Judul Seri
-
No. Panggil
07 04. 121 (0067)
Penerbit
Pekanbaru : Universitas Riau –Fakultas Teknik – Teknik elektro.,
Deskripsi Fisik
ix, 79 hlm.; ill.: 29 cm
Bahasa
ISBN/ISSN
-
Klasifikasi
07 04. 121 (0067)
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
-
Subjek
TEKNIK ELEKTRO
Info Detail Spesifik
-
Pernyataan Tanggungjawab
Versi lain/terkait

Tidak tersedia versi lain

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