scholarly journals A Low-Cost Multi-Parameter Water Quality Monitoring System

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3775
Author(s):  
Arif Ul Alam ◽  
Dennis Clyne ◽  
M. Jamal Deen
Keyword(s):  
Water Quality ◽  
Monitoring System ◽  
Electrochemical Sensors ◽  
Limit Of Detection ◽  
Low Cost ◽  
Water Quality Monitoring ◽  
Water Monitoring ◽  
Quality Monitoring ◽  
Sensor Data ◽  
Skilled Workers

Multi-parameter water quality monitoring is crucial in resource-limited areas to provide persistent water safety. Conventional water monitoring techniques are time-consuming, require skilled personnel, are not user-friendly and are incompatible with operating on-site. Here, we develop a multi-parameter water quality monitoring system (MWQMS) that includes an array of low-cost, easy-to-use, high-sensitivity electrochemical sensors, as well as custom-designed sensor readout circuitry and smartphone application with wireless connectivity. The system overcomes the need of costly laboratory-based testing methods and the requirement of skilled workers. The proposed MWQMS system can simultaneously monitor pH, free chlorine, and temperature with sensitivities of 57.5 mV/pH, 186 nA/ppm and 16.9 mV/°C, respectively, as well as sensing of BPA with <10 nM limit of detection. The system also provides seamless interconnection between transduction of the sensors’ signal, signal processing, wireless data transfer and smartphone app-based operation. This interconnection was accomplished by fabricating nanomaterial and carbon nanotube-based sensors on a common substrate, integrating these sensors to a readout circuit and transmitting the sensor data to an Android application. The MWQMS system provides a general platform technology where an array of other water monitoring sensors can also be easily integrated and programmed. Such a system can offer tremendous opportunity for a broad range of environmental monitoring applications.

Smart and Low Cost Real Time Water Quality Monitoring System Using IoT

2019 ◽  
Author(s):  
Jeba Anandh S ◽  
Anandharaj M ◽  
Aswinrajan J ◽  
Karankumar G ◽  
Karthik P
Keyword(s):  
Water Quality ◽  
Real Time ◽  
Monitoring System ◽  
Low Cost ◽  
Water Quality Monitoring ◽  
Quality Monitoring

A Low-Cost IoT Based Automatic Water Quality Monitoring System for Textile Industry

2021 ◽  
Author(s):  
Avishek Das Gupta ◽  
Zafar Sadek ◽  
Md. Harunur Rashid Bhuiyan ◽  
Md. Golam Kibria ◽  
Tarik Reza Toha ◽  
...  
Keyword(s):  
Water Quality ◽  
Monitoring System ◽  
Textile Industry ◽  
Low Cost ◽  
Water Quality Monitoring ◽  
Quality Monitoring

scholarly journals A REVIEW ON TECHNIQUES FOR WATER QUALITY MONITORING USING IOT DEVICES

2020 ◽  
Vol 1 (2) ◽  
pp. 49-51
Author(s):  
Ali Javaid ◽  
Ahthasham Sajid ◽  
Afia Zafar ◽  
Zaheer Ahemed
Keyword(s):  
Water Quality ◽  
Monitoring System ◽  
Water Quality Monitoring ◽  
Water Monitoring ◽  
Quality Monitoring ◽  
Monitoring Systems ◽  
Environment Monitoring ◽  
Iot Devices

In this paper is discussed the different kinds of environment monitoring systems related to water goodness. Different parameters are discussed to elaborate each water monitoring system with different aspects. The technology aspects of different approach techniques related to water quality monitoring with their way of implementation with the IOT aspect has been evaluated of past four years. In this paper, the workflow of different approaches of the technologies exploited will be discussed critically and also that which approaches focused on what parameters.

Design of Remote Water Quality Monitoring System Based on GPRS

2010 ◽  
Vol 113-116 ◽  
pp. 1411-1414 ◽  
Author(s):  
Yi Jin ◽  
Mu Zhang ◽  
Da Gang Gu
Keyword(s):  
Water Quality ◽  
Monitoring System ◽  
Low Cost ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Working Process ◽  
Quality Change ◽  
Water Quality Change ◽  
Early Warning Mechanism ◽  
Stable Performance

Water quality is more and more important for people all over the world. But there are many problems in ordinary monitoring system for water quality such as untimely data processing, the lack and weakness of early warning mechanism for water quality change and so on. In this paper, one new remote water quality monitoring system was designed based on GPRS technology, after that the modules of the system were mentioned. Especially including the design and the working process of GPRS module, the design of the two main subsystem of the remote water quality monitoring system was described. The test of the remote water quality monitoring system based on GPRS proved that the system has the qualities of stable performance, reliability, well-maintain and low cost.

scholarly journals Design and Implementation of a Low-Cost Portable Water Quality Monitoring System

2021 ◽  
Vol 69 (2) ◽  
pp. 2405-2424
Author(s):  
Anabi Hilary Kelechi ◽  
Mohammed H. Alsharif ◽  
Anya Chukwudi-eke Anya ◽  
Mathias U. Bonet ◽  
Samson Aiyudubie Uyi ◽  
...  
Keyword(s):  
Water Quality ◽  
Monitoring System ◽  
Low Cost ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Design And Implementation

scholarly journals Electrical and Electrochemical Sensors Based on Carbon Nanotubes for the Monitoring of Chemicals in Water—A Review

Sensors ◽  
2021 ◽  
Vol 22 (1) ◽  
pp. 218
Author(s):  
Gookbin Cho ◽  
Sawsen Azzouzi ◽  
Gaël Zucchi ◽  
Bérengère Lebental
Keyword(s):  
Water Quality ◽  
Carbon Nanotubes ◽  
Electrochemical Sensors ◽  
Field Effect Transistors ◽  
Limit Of Detection ◽  
High Surface ◽  
Water Quality Monitoring ◽  
Detection Sensitivity ◽  
Quality Monitoring ◽  
Detection Range

Carbon nanotubes (CNTs) combine high electrical conductivity with high surface area and chemical stability, which makes them very promising for chemical sensing. While water quality monitoring has particularly strong societal and environmental impacts, a lot of critical sensing needs remain unmet by commercial technologies. In the present review, we show across 20 water monitoring analytes and 90 references that carbon nanotube-based electrochemical sensors, chemistors and field-effect transistors (chemFET) can meet these needs. A set of 126 additional references provide context and supporting information. After introducing water quality monitoring challenges, the general operation and fabrication principles of CNT water quality sensors are summarized. They are sorted by target analytes (pH, micronutrients and metal ions, nitrogen, hardness, dissolved oxygen, disinfectants, sulfur and miscellaneous) and compared in terms of performances (limit of detection, sensitivity and detection range) and functionalization strategies. For each analyte, the references with best performances are discussed. Overall, the most frequently investigated analytes are H+ (pH) and lead (with 18% of references each), then cadmium (14%) and nitrite (11%). Micronutrients and toxic metals cover 40% of all references. Electrochemical sensors (73%) have been more investigated than chemistors (14%) or FETs (12%). Limits of detection in the ppt range have been reached, for instance Cu(II) detection with a liquid-gated chemFET using SWCNT functionalized with peptide-enhanced polyaniline or Pb(II) detection with stripping voltammetry using MWCNT functionalized with ionic liquid-dithizone based bucky-gel. The large majority of reports address functionalized CNTs (82%) instead of pristine or carboxyl-functionalized CNTs. For analytes where comparison is possible, FET-based and electrochemical transduction yield better performances than chemistors (Cu(II), Hg(II), Ca(II), H2O2); non-functionalized CNTs may yield better performances than functionalized ones (Zn(II), pH and chlorine).

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