Design Concept of Two Tank Reservoirs to Maintain pH Value for Tiger Prawn

2014 ◽  
Vol 660 ◽  
pp. 851-856
Author(s):  
Badrul Aisham Md Zain ◽  
Muhammad Farhan Khasim ◽  
Salihatun Md Salleh ◽  
Md Saidin Wahab
Keyword(s):  
Control System ◽  
Ph Value ◽  
Ph Sensor ◽  
Monitoring And Control ◽  
Shrimp Culture ◽  
Water Storage Tank ◽  
Slaked Lime ◽  
Tiger Prawn ◽  
Water Ph ◽  
Ph Level

Shrimp culture is the fastest growing sector of the aquaculture industry in Malaysia. In culturing tiger prawn, the pH level needed for water is around 7.0-8.5. Currently, prawn farmer in Malaysia still using a manual method to control the water pH level by adding chemical (Lime), in which, the process required constant monitoring and control by labor. Since the prawns are so sensitive on pH level, an automatic pH control system is required to maintain the water pH automatically and precisely. This research was conducted to design a system that can control and provide feedback on the changes of pH level and been implemented at the reservoir tank that can act as water storage tank and prawn pond. Control system and pH sensor are the important components in controlling the pH level. Input from pH sensor was processed by controller. Moreover, after an error is detected by controller, the correction will be delivered to the system as a feedback process. Nitric acid with concentration of 0.001M was added to 25 liter water in tank 1 so that the pH level is decreased to pH 3.00. Different concentrations were used for slaked lime; 0.5M, 0.4M. 0.3M, 0.2M and 0.1M, to increase the pH from acid to slightly alkaline in the range of pH value 7.00-8.50. Slaked lime was pumped to Tank by water pump and it will stop if the pH level reaches the setting level. The time for the system to recover from pH 3.00 to 7.00-8.50 was recorded. The results shows that slaked lime with the concentration 0.5M has the fastest recover time which was 29s follow by 0.4M in 69s, 0.3M in 92s, 0.2M in 151s and 0.1M in 252s, respectively.

scholarly journals Pengembangan Prototype Sistem Kendali Kualitas Air Tambak Udang

2019 ◽  
Vol 4 (1) ◽  
pp. 75-82
Author(s):  
Avara Ghamaliel Ty ◽  
Pramudi Utomo
Keyword(s):  
Water Quality ◽  
Performance Test ◽  
Ph Value ◽  
Ph Sensor ◽  
Average Error ◽  
Water Quality Control ◽  
Water Ph ◽  
And Performance ◽  
Ph Level ◽  
Main Component

The purpose of this article is to describe the analysis, design and performance of prototype shrimp water quality control systems. This tool is expected to simplify and ease the work of shrimp farmers in checking water quality regularly. In its design consists of several steps, namely designing the design of tools, making mechanical systems, programming, and the final stage of testing. The main component that is used as the main control is Arduino Nano. Salinity sensor, DS18b20, and PH-4520C as components for monitoring water quality. 12V DC water pump as a stabilizer of the pH level in the water. Based on the results of testing the average error for the water temperature sensor, water pH sensor and salinity sensor are 0.74%, 2.06%, and 3.60%, respectively. The three error values are less than 10%. Based on the results of testing the pH of water, liquid pH up will be sprayed when the pH value of the water is less than 6.5. While the liquid pH down will be narrowed when the pH value of water is less than 8. The results of this performance test can work in accordance with the function and purpose.

scholarly journals Automated monitoring and controlling pH levels for hydroponics cultivation technique

2020 ◽  
Vol 18 (3) ◽  
pp. 1236
Author(s):  
Mohammad Farid Saaid ◽  
Ahmad Ihsan Mohd Yassin ◽  
Nooritawati Md Tahir
Keyword(s):  
Water Content ◽  
Ph Value ◽  
Ph Sensor ◽  
Nutrient Elements ◽  
Syringe Pump ◽  
Automated Monitoring ◽  
Hydroponic Cultivation ◽  
Cultivation Technique ◽  
Water Ph ◽  
Ph Level

<span>A hydroponics plant can grow healthily with sufficient nutrient, temperature, light, humidity as well as pH level that is indeed vital in ensuring the plants will absorb maximum nutrient elements required. This paper presents automated monitoring and controlling pH levels for the hydroponic cultivation technique. In this study, automated monitoring and controlling of pH levels are developed specifically for the hydroponic cultivation technique. There are three main methods that involved in the development of the system namely hardware, programming and functionality test. Firstly, users need to set the maximum and minimum pH levels as required by the plant. Then, the pH sensor will monitor the real-time pH level of the water. A syringe pump that contains a pH up solution (alkaline) and a pH down solution (acid) will drip the solutions to neutralize the water content if the water pH level is not within the stated ranges as set by the user. Results showed that the automated monitoring and controlling pH levels were successfully developed and functionality was tested and confirmed as desired. The syringe pumps responded perfectly upon changes of the water pH value based on the validation done that showed 100% accuracy of the syringe pump responds. </span>

scholarly journals Development of a Low-Cost pH Meter for Liquid Chemical Fertilizers

2020 ◽  
Vol 8 (4) ◽  
pp. 840-846
Author(s):  
Muhittin Yağmur Polat ◽  
Abdullah Beyaz ◽  
İbrahim Çilingir
Keyword(s):  
Ph Value ◽  
Low Cost ◽  
Ph Sensor ◽  
Field Application ◽  
Average Error ◽  
Chemical Fertilizers ◽  
Modern Agriculture ◽  
Ph Values ◽  
Water Ph ◽  
Liquid Chemical

Liquid chemical fertilizers are widely used in modern agriculture. The pH values of these fertilizers are important in terms of their effectiveness in the field application and their effect on the soil-water pH balance. Therefore, it is necessary to measure the pH and other properties of liquid fertilizers with fast, practical and inexpensive methods. With the advancing technology, pH value has been started to measure more accurately and efficiently with the help of low-cost devices. In this study, a low-cost pH meter was developed using a low-cost pH sensor, an Arduino UNO R3 microcontroller board, and a software written in the C/C++ programming language. The developed pH meter was used to measure the pH values of liquid chemical fertilizers. Close variations were observed between the values obtained from it and the values measured by an accredited, laboratory-type pH meter. According to the pH measurements of the two pH meters, R2 ranged 88.1% to 99.3%, average error range 0.14 to 0.28, and average error percentage ranged 1.56% to 6.81% for three different types of liquid fertilizers. In light of these results, it was shown that the developed low-cost pH meter can be useful for practical pH measurement applications.

Real-Time Monitoring and Automatic Control for Aerosol Cultivation of Lettuce

2014 ◽  
Vol 678 ◽  
pp. 299-304
Author(s):  
Bao Guo Yao ◽  
Zhe Feng Zhang
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Real Time ◽  
Nutrient Solution ◽  
Control Method ◽  
Ph Value ◽  
Agricultural Science ◽  
Monitoring And Control ◽  
Real Time Monitoring ◽  
And Control

The automatic monitoring and control method for aerosol cultivation of lettuce was proposed by real-time monitoring and automatic control of the cultivation environment, on-line detection and automatic control of nutrient solution, and the combination of field control and remote control, which has realized the intelligent management of aerosol cultivation of lettuce based on plant factory. The monitoring and control system of aerosol cultivation, the control model for the spray frequency of nutrient solution and the fuzzy control method for the pH value control of nutrient solution were introduced. The control system has been applied in the agricultural science and technology park, and the results show that the aerosol cultivation of lettuce has advantages over the traditional method.

scholarly journals Monitoring Kekenyalan Tahu Kedelai dengan Sensor Kapasitif Menggunakan Mikrokontroller Berbasis Android

2021 ◽  
Vol 2 (1) ◽  
pp. 35-42
Author(s):  
Rizki Putri Nur Laili ◽  
Farida Arinie Soelistianto Arinie Soelistianto ◽  
Nanak Zakaria ◽  
Nurul Hidayati
Keyword(s):  
Storage Temperature ◽  
Ph Value ◽  
Ph Sensor ◽  
Capacitive Sensor ◽  
Test Results ◽  
Quality Of Data ◽  
Metal Plates ◽  
Ph Level ◽  
Output Information

Tofu has the best quality vegetable protein because it has the most complete amino acid composition and is believed to have high digestibility (85% -98%). According to SNI 01-3142-1998 and SII No. 0270-1990 testing criteria for soy tofu based on smell, taste, color, appearance, or texture. Tofu soybeans are prone to physical or texture damage due to factors such as inappropriate pH levels and insufficient storage which results in damaged tofu. Therefore in this study, it is proposed to determine the elasticity of soy tofu with the parameters tested are the pH level in the manufacture of soy tofu, the storage temperature, and the capacitance value to see how thick the tofu is with a capacitive sensor using the capacitor principle. Where the parallel plate capacitor is a capacitor consisting of two parallel metal plates. The test results of all sensors are sent to the database and will be displayed on the page on the Android application which will provide real-time sensor output information to the user. Based on the results of testing on this system using a pH sensor, the pH value is around 3-4 which indicates that the pH level used is very good for use in tofu processing, at pH 4.56 with storage at 29 ° C the highest elastic capacitance value is 3.58.  In testing data delivery, the throughput value is 4336,217 b / s and the smallest delay value is 0.017ms because the smaller the delay value, the better the quality of data transmission because there will be no delay in sending data.

scholarly journals Rancang Bangun Alat Pendeteksi Kelayakan Air Menggunakan Sensor PH

2019 ◽  
Vol 4 (1) ◽  
pp. 127
Author(s):  
Fitri Ariska ◽  
Irawan Hadi ◽  
Lindawati Lindawati
Keyword(s):  
Air Quality ◽  
Ph Value ◽  
Liquid Crystal Display ◽  
Ph Sensor ◽  
Measuring Device ◽  
Measurement Results ◽  
Turbidity Level ◽  
The Republic ◽  
The Government ◽  
Ph Level

One parameter of air quality is the level of turbidity and acidity. For most people, air quality is considered insignificant because it is inappropriate for aesthetics. Good water to be issued according to regulations issued by the government through the Minister of Health of the Republic of Indonesia has a pH value of 6.5 - 8.5 and the maximum turbidity level is 5 NTU (Nephelometric Turbidity Unit). Therefore the author makes a measuring device for acidity in water to facilitate the use of water that will be used by the community. Processing the measurement results is carried out by a pH sensor which will be processed by the Arduino Uno Microcontroller and produced with output via LCD (Liquid Crystal Display). In this test, the author uses several air samples that have been determined by the government, namely pH 4, pH 7 and pH 10. And from several other samples using water that is reasonably suitable for consumption with a pH level of 6.5 and above and can be used as Neutral.

The Electrical Signals Measurement for Silicon Nanowires pH Sensor

2015 ◽  
Vol 1109 ◽  
pp. 219-222
Author(s):  
M.N. Md Nuzaihan ◽  
U. Hashim ◽  
Mohd Khairuddin Md Arshad ◽  
A. Rahim Ruslinda ◽  
A.H. Azman
Keyword(s):  
Silicon Nanowires ◽  
Ph Value ◽  
Ph Sensor ◽  
Electrical Performance ◽  
Electrical Signals ◽  
Buffer Solutions ◽  
Source Current ◽  
Ph Buffer ◽  
Ph Level ◽  
Nanowires Array

In this work, we report the geometrical characteristics and the electrical performance of silicon nanowires array for pH level detection. The smallest silicon nanowires structure is 40 nm width and 400 μm length. The Silicon Nanowires Array is tested with pH buffer solutions of pH4, pH7 amd pH10. Direct current (DC) measurement is the most common method of detecting the electrical signals of silicon nanowires sensor. The results show that the IV characteristic is directly proportional and the pH sensitivity calculated from linear relation between the drain-source current vs the pH value was 1.4nA/pH. These results are important for future biosensing experiments and data analysis using Silicon Nanowires Array devices.

DEVELOPMENT OF COMPUTERIZED MONITORING AND CONTROL SYSTEM OF THE MOBILE ROBOT’S POSITIONING ON LARGE FERROMAGNETIC SURFACES BASED ON INTELLIGENT TECHNIQUES. AUTOMATION OF THE MONITORING AND CONTROL PROCESSES OF MOBILE ROBOT FOR PROCESSING OF LARGE INCLINED SURFACES

2019 ◽  
pp. 41-48
Author(s):  
Yan Guojun ◽  
Oleksiy Kozlov ◽  
Oleksandr Gerasin ◽  
Galyna Kondratenko
Keyword(s):  
Control System ◽  
Mobile Robot ◽  
Functional Structure ◽  
Monitoring And Control ◽  
Technological Parameters ◽  
Monitoring And Control System ◽  
Inclined Surfaces ◽  
Computerized Monitoring ◽  
And Control ◽  
Tracked Mobile Robot

The article renders the special features of the design of a tracked mobile robot (MR) for moving over inclined ferromagnetic surfaces while performing specified technological operations. There is conducted a synthesis of the functional structure and selective technological parameters (such as control coordinates) of the computerized monitoring and control system (CMCS) intended for use with this MR. Application of the CMCS with the proposed functional structure allows substantially increasing the accuracy of the MR monitoring and control, which in turn provides for a considerable enhancement in the quality and economic efficiency of the operations on processing of large ferromagnetic surfaces.

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