All life depends on water, which humans need to survive and work. Drinking water quality affects health. The control and water quality monitoring has emerged as a significant area of focus in contemporary science. The water quality monitoring may provide a scientific foundation for water treatment projects by precisely reflecting the present water quality and development trend in a timely and complete manner. A water quality sensor is the system's front-end sensing component for water quality and monitoring.

A water quality sensor may measure dissolved oxygen, conductivity, residual chlorine, turbidity, suspended particles, COD, BOD, and pH. Water quality is measured using a composite metric that considers several aspects.

Types of Water Quality Sensors

Water quality has numerous factors. Thus, building a water quality monitoring system is difficult. The good news is that Boqu Intstrument’s water quality sensors make it easy to choose your required sensors.

pH Sensor

When tracking industrial effluent, the pH value is a crucial metric. The optimal pH range for most bacteria in industrial wastewater is between 6.5 and 7.5. However, their adaptability range is 4.5 to 9. Fungi begin to outcompete bacteria at pH levels below 6.5. Fungi will have an overwhelming advantage in the biochemical tank when the pH hits 4.5, which will significantly impact the sludge's ability to settle. The metabolic rate of microbes is slowed down as the pH exceeds 9.

Conductivity Sensor

A substance's conductivity is defined as its capacity to carry a current. One key indication of water quality in water quality sensors is conductivity. A higher conductivity number suggests higher water TDS. Total dissolved solids (TDS) assess water contamination. The concentration of pollutants in water is related to TDS. Contrarily, more water is present when impurity concentration is low. The conductivity is reduced in a pure state.

The various measuring methodologies conductivity sensors use allow their classification into three main types: electrode-type, inductive, and ultrasonic. An electrode-type conductivity sensor uses the electrolytic conduction principle to detect resistance. Using the concept of electromagnetic induction, the inductive conductivity sensor can detect the conductivity of liquids. Two of the most common types of ultrasonic conductivity sensors detect changes in liquid conductivity as a function of the frequency and amplitude of the waves themselves.

Turbidity Sensor

Particles in the water's suspension are the root cause of turbidity. Particles in suspension reflect light from all directions. As a rule, the test signal is the light dispersed in a 90-degree direction. The sensor requires calibration at various places because of the multi-segment linear connection between scattered light and turbidity.

Using scattered light turbidity measurement, the turbidity sensor is devised and fabricated. The quantity of light reaching the water's surface indicates the concentration of suspended particles, which may reveal how much a body of water has been polluted. This allows for water turbidity measurement, with the final result produced after linearization processing. Water quality sensors often use it to measure rivers, sewage, and wastewater precisely.

Dissolved Oxygen Sensor

Dissolved oxygen sensors monitor solution oxygen.It uses fluorescence as its guiding concept. There is no need for electrolytes or oxygen in the fluorescent dissolved oxygen sensor, which relies on the quenching principle of active fluorescence by certain molecules in physics. There are two main categories: saltwater and freshwater.

Water quality and monitoring in industrial settings, aquaculture, rivers and lakes, and situations requiring long-term monitoring of saltwater quality parameters are all good candidates for this kind of system.

Ammonia Nitrogen Ion Sensor

Excess ammonia nitrogen in aquaculture water may kill fish and shrimp. A water-quality ammonia hydrogen sensor is needed to monitor ammonia nitrogen levels. Ammonia nitrogen sensors, which monitor water ammonia nitrogen, have several uses in IoT, aquaculture, intelligent agriculture, and other fields.

ORP Sensor

Oxidation-reduction potential (ORP) may reveal a lot about aquaculture water quality. The water body's oxidation-reduction potential reflects its state. A body of water's oxidizing and reducing properties are indicated by its ORP value; a lower number indicates a more basic water quality.

As a measure of the solution's oxygen reduction potential, the ORP sensor sees extensive application. In addition to detecting bodies of water, it can also detect organic reactive potential (ORP) information in soil and culture media. Consequently, it is a versatile sensor with several potential uses in chemical engineering and electric power fields. Various water quality sensors and indicators, including ORP, are continuously monitored in businesses, including food, medicine, and environmental protection. Its typical use is with a pH sensor.

Conclusion

A great variety of water quality sensors must be tracked at various application locations. Reach out to us for assistance with precise selection and operation. We have expert technicians on staff to give you the best matching plan. Visit our website for more information about water quality sensors.