Plant engineers and technicians in manufacturing plants with corrosive processes that rely on hydrofluoric (HF) acid will find the S80-T80 Fluoride Monitoring System from Electro-Chemical Devices supports efficient wastewater treatment processes to reduce consumable costs and ensure discharge effluent fluoride levels are compliant with local, state and federal regulations.

HF acid is a water based compound that is commonly used in a variety of industrial applications that include: semiconductor chip fabrication, electronics assemblies, chemical refining as a catalyst, metal plating, glass etching and various cleaning processes.  While HF acid is technically considered a weak acid, it is a hazardous material with the potential to harm employees and the environment when improperly used or treated prior to plant discharge.

Typical HF acid wastewater treatment systems inject a milk of lime solution Ca(OH)₂ into the process water, which precipitates the fluorides out as calcium fluoride (CAF) salt. In order to ensure correct dosing with the milk of lime solution, the incoming and outgoing fluoride levels must be accurately monitored and compared in order to prevent either wasteful over-dosing or insufficient treatment of the effluent prior to discharge.

• The ECD S80-T80 Fluoride Monitoring System provides these comparative incoming and out going measurements. ECD's monitoring system features an S80 pIon Fluoride Sensor, an S80 pH Sensor and a dual-channel T80 Transmitter. This ECD solution helps plants achieve a more cost-effective fluoride removal water treatment system, which doesn't over use consumable chemicals while also ensuring the wastewater is treated sufficiently to meet regulatory requirements prior to effluent discharge.

• The S80 Fluoride Sensor features a pIon electrode cartridge that measures the activity of "free" fluoride ions in solution concentrations from 0.02 to 2,000 ppm over a pH range from 5-8 pH. It operates over a wide temperature range of 0 to 80ºC.

•  The S80 Sensors come in immersion or insertion package configurations that are designed with a 0.75-inch MNPT compression fitting as the process connection. This design employs a variable insertion length to accommodate installation in pipe tees, flow cells or through tank walls. The retractable configuration is designed with a 1-inch MNPT ball valve, a 1-x-0.75 inch reducer and a 0.75 inch MNPT compression fitting to provide the process connection. 

The intelligent T80 Transmitter provides dual-channel comparison of measurements or inputs, which can improve the accuracy of fluoride measurement. For example, fluoride ions are affected by changes in the pH of a solution. The correct measurement of fluoride levels is only possible if pH is also measured and appropriate compensation algorithms are processed. The S80 pH Sensor and the dual-channel T80 Transmitter easily handles these types of comparative measurements.

The S80 Sensors and T80 Transmitter come pre-calibrated from the factory with easy plug-n-play set-up. The sensors feature easy-to-replace long-life cartridges, which eliminate consumable, expensive re-agents for lower cost maintenance to reduce plant and process operating costs.

AngelTech Live III: Join us on 12 April 2021!

AngelTech Live III will be broadcast on 12 April 2021, 10am BST, rebroadcast on 14 April (10am CTT) and 16 April (10am PST) and will feature online versions of the market-leading physical events: CS International and PIC International PLUS a brand new Silicon Semiconductor International Track!

Thanks to the great diversity of the semiconductor industry, we are always chasing new markets and developing a range of exciting technologies.

2021 is no different. Over the last few months interest in deep-UV LEDs has rocketed, due to its capability to disinfect and sanitise areas and combat Covid-19. We shall consider a roadmap for this device, along with technologies for boosting its output.

We shall also look at microLEDs, a display with many wonderful attributes, identifying processes for handling the mass transfer of tiny emitters that hold the key to commercialisation of this technology.

We shall also discuss electrification of transportation, underpinned by wide bandgap power electronics and supported by blue lasers that are ideal for processing copper.

Additional areas we will cover include the development of GaN ICs, to improve the reach of power electronics; the great strides that have been made with gallium oxide; and a look at new materials, such as cubic GaN and AlScN.

Having attracted 1500 delegates over the last 2 online summits, the 3rd event promises to be even bigger and better – with 3 interactive sessions over 1 day and will once again prove to be a key event across the semiconductor and photonic integrated circuits calendar.

So make sure you sign up today and discover the latest cutting edge developments across the compound semiconductor and integrated photonics value chain.

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