NU Icon Private Limited

The inductive Conductivity Sensor can be used with the online AEC2-R4 Conductivity Controller, which has 2 relays that can control the dosing. The 3.2-inch LCD screen can display a wealth of setting information. The interface of the conductivity controller can switch to display conductivity, resistivity, TDS and salinity. The online inductive conductivity controller also has a built-in RS485 communication interface, which can realize data output. The biggest advantage of the inductive conductivity controller it that is has large measuring range up to 2000mS. 

 

Alkaline concentration is a critical process parameter that must be monitored at multiple locations in the kraft process. This includes alkali concentration in the digester, residual black liquor in the pulp washing stage, alkali concentration in the causticizing tank, and alkali concentration in the green liquor. Due to the high process temperatures and thick slurries, pH sensors cannot be used for measurement. In this application, toroidal conductivity sensors are often used to monitor alkali concentration. Toroidal conductivity electrodes are more corrosion resistant than contact sensors and are essential for processes when slurry and lime particles and corrosive delignification liquids are present.

Wastewater refers to the water body containing various harmful substances produced in the process of production, life and agriculture. Harmful substances in wastewater include organic matter, inorganic matter, heavy metals, etc. These substances will have an impact on the environment and human health. Therefore, in order to protect the environment and human health, wastewater needs to be monitored and treated. Among them, COD value is an important indicator in wastewater monitoring. COD is the abbreviation of Chemical Oxygen Demand, that is, chemical oxygen demand. It refers to the amount of chemical oxidant required to oxidize organic matter in wastewater to CO2 and H2O under certain conditions. The COD value is an important index to measure the content of organic matter in wastewater, which can reflect the pollution degree and treatment difficulty of wastewater

In the process of industrialization, large amounts of wastewater are discharged into the environment, causing serious pollution to water resources and the ecological environment. Chemical oxygen demand (COD) is one of the important indicators to measure the organic matter content and pollution degree in wastewater. Many organic compounds dissolved in water absorb UV light. Therefore, by measuring the degree of absorption of 254nm wavelength ultraviolet light by these organic substances, the content of dissolved organic pollutants in water can be accurately measured. The greater the chemical oxygen demand, the more serious the water body is polluted by organic matter. Industrial wastewater usually contains a large amount of organic matter, including chemical plants, pharmaceutical plants, food processing plants and other industries. These organic matter will decompose in the water body, consume dissolved oxygen, cause water body hypoxia, and form high concentrations of COD due to the degradation of organic matter. The COD value of these wastewater must be monitored when discharged