IQ SensorNet Water Quality Monitoring System

Learn more about the IQ SensorNet P700 orthophosphate analyzer (https://www.ysi.com/PO4) and how it can help monitor your biological phosphorus removal and control chemical dosing. The P700 measures the amount of orthophosphate throughout the wastewater treatment process - from primary settling to the biological tanks and effluent.

The analyzer provides continuous data to help improve operational efficiency, lower operation costs as well as verification of phosphate elimination in order to meet permit requirements. A wide measurement range, low chemical use and built-in auto-calibration make the P700 ideal for continuous phosphorus monitoring.

Recent events have demonstrated that excess phosphorus in receiving waters can create many serious problems including impairment of drinking water supplies. For this reason and others, incorporation of phosphorus limits into NPDES discharge permits is occurring in many states.

Many facilities are being required to remove phosphorus for the first time and will need to add a process to the flow sheet. A discharge limit of 1.0 mg/L may be achieved most cost-effectively with chemical addition. Enhanced biological treatment may be needed to meet lower limits down to 0.5 mg/L and below. Additionally, biological treatment has other potential benefits.

Regardless of the treatment method, continuous monitoring is essential. Critical parameters include orthophosphate, dissolved oxygen, oxidation-reduction potential (ORP), total suspended solids, and nitrate.

YSI Webinar - overview of the IQ SensorNet continuous water quality monitoring and control system for wastewater applications. http://www.ysi.com/iq

The YSI IQ SensorNet (http://www.ysi.com/iq) modular, continuous water quality monitoring and control system is capable of assisting many Wastewater Operators with their daily challenges. Water Resource Recovery Facilities all face new realities in their daily operations and the IQ system functions as an automated system to help eliminate costs, wasted energy, and extra time.

Follow a real operator in his scenario of how the IQ SensorNet water quality system helps with his four main issues:

1) “We already spend a fortune on energy and costs just keep rising. How can I reduce energy costs for aeration and pumping without lowering my treatment performance?

2) “Our new permit includes a compliance schedule for phosphorus. It’s another thing we have to do but we are also under pressure to keep costs down. How do I make sure that we meet the new requirements without a huge increase in the operating budget?

3) “Trying to do more with less has been a challenge. Is there low-maintenance online monitoring to cut down on the multiple grab samples we do per day freeing up staff for other important tasks? ”

4) “Planning for future needs is always tough. I need equipment that meets my needs today that my team can maintain and expand when necessary without having to buy a service contract or call in dedicated or specialized experts.”

Interested in winning an IQ SensorNet system? (http://bit.ly/YSIwinIQSN)

The City of Dayton, OH utilizes the YSI IQ SensorNet (http://www.ysi.com/iq) to lower preventative maintenance, optimize process, meet permits, and save money in the long run.

Jason Tincu explains their use of DO sensors to fine tune aeration needs while using the ammonium sensors to trim back aeration even further while still completely nitrifying in the system.

The YSI IQ also eliminates the need to have outside professionals onsite and prevents the City from having costly service contracts.

As the City looks into the future, they anticipate tighter restrictions on their permit in regards to phosphorus and they intend to seamlessly add the YSI Orthophosphate analyzer to their existing IQ SensorNet system

The YSI IQ SensorNet 2020 XT is a modular water quality system for a complete sensor network ideal for various installation needs. The modular system can accept additional sensors easily at any time. This is a powerful system to continuously measure water quality parameters anywhere in a facility for process control.

Immediate benefits include better network visibility and management, early detection of network failures, improved compliance with regulatory targets and cost savings (energy, pump/blower maintenance, labor).

The system is capable of measuring:

*Chloride can be seen in the menu on the terminal but only the last value. No real-time monitoring and control function when used on the NitraLyt or VARiON sensor as compensation for nitrate.

The entire system accommodates up to 20 sensors for the above listed parameters in any combination. Any sensor can also be changed out at any time without re-wiring if another parameter is needed. Simply change sensors (parameters) and start getting data for the new parameter.

Interested in winning an IQ SensorNet system? (http://bit.ly/YSIwinIQSN)

Digital optical DO sensors with FDO electrodes for use with the IQ SensorNet terminals (http://www.ysi.com/iq).

In the biological nutrient removal process of wastewater treatment plants, continuous and precise measurement of dissolved oxygen concentration is of vital importance for an optimal, trouble-free, operation. The efficiency and energy demand of the purification process, either in the nitrification or denitrification phase, is mainly determined by the performance of the aeration control system.

Using an accurate, reliable, and proven dissolved oxygen sensor as part of your process control regime is essential.

With the YSI FDO (flourescent dissolved oxygen) sensor, you will receive high quality data for an amazing period of time - with minimal maintenance.

The FDO 700 Series IQ sensors employ the following features:

Intelligent sensor cap - The sensor cap (membrane) is individually factory calibrated. Calibration data is stored on a chip that is permanently installed in the sensor cap.

Equal path reference - The optical components and LEDs are identically designed. The benefit is an identical aging process of the components that the sensor can easily compensate for which provides continuous hihg performance.

Green light technology - "Soft" excition light. By stimulating the flourescent reaction in the membrane with lower energy green light, bleaching of the flourescent dye in the sensor membrane is avoided. This means the membrane lifetime is two years - or more.

45 degree technology - It seems so simple. With the FDO sensor's 45° angle on the end, bubbles simply slide right by. Confidently place the FDO sensor in your aeration basin without worrying about bubbles resting on, bursting on, or in any way altering your DO data.

The FDO optical measuring technology is based on an attenuated flourescent signal during a defined time frame. In order to process this time measurement as precisely as possible, the sensor optics are calibrated to the speed of light. This natural constant is defined as the time that a light beam travels from point A to point B - the speed of light. The FDO is precisely calibrated against a physical constant. This technology makes the FDO a non-user calibrated sensor.

This list of no's makes this sensor a yes!

No electrolyte

FDO 700 IQ (700 IQ SW sea water design also available)

Universal optical oxygen sensor for measuring and controlling oxygen input in biological wastewater treatment processes. Rugged DO sensor with a response time of T90 at 25°C in less than 150 seconds and T99 at 25°C in less than 200 seconds. Well suited sensor for DO measurements in biological purification stages at wastewater plants and control of oxygenation. The angle of the sensor prevents signal disturbances from rising air bubbles in aeration tanks.

FDO 701 IQ (701 IQ SW sea water design also available)

DO sensor with improved response times. The 701 IQ has a response time of T90 at 25°C in less than 80 seconds. This sensor is ideally suited for measurement and control in faster processes. The lifetime of the membrane is reduced to ~ 6 months.

Digital VARiON® Plus ammonium, nitrate and potassium ISE sensor for use with the YSI IQ SensorNet wastewater process monitoring and control system (http://www.ysi.com/iq).

The efficient control of Nitrogen in wastewater systems is possible by making those measurements directly in the wastewater process. The direct ISE measuring technology with the VARiON sensor enables optimization of a plant in respect to process efficiency and energy consumption.

The VARiON Plus 700 Series IQ sensors employ the following features:

Measurement/Reference - There is a constant potential with the measuring electrode and the reference electrode. This tension is read as the measured value and prevents interferences.

Matrix adjustment - A matrix effect is caused by all free ions in the wastewater. In general, ions don't act according to their concentration which means the mV signal would be influenced and the end result would be incorrect data. The VARiON sensors can be compensated for this matrix effect. This matrix is unique from site to site so an adjustment can be done by keeping the sensor in process and storing the mV value, taking a physical sample, filtering it and conducting lab analysis and then entering those reference values. Conventional calibration is not recommend because the VARiON is factory calibrated. It can still be calibrated with cal standards but probably won't be necessary.

The IQ SensorNet, http://www.ysi.com/iq, is a continuous water quality monitoring and control system for wastewater treatment plants. Improve efficiency and save operating costs, pump maintenance and more. Many features are available on the IQ SensorNet.

See the ultrasonic cleaning on the IQ SensorNet sensors. Ultrasonic cleaning prevents biofouling on the optical sensor. This short video demonstrates the ultrasonic cleaning when power is added to this sensor and the green substance is quickly cleaned off. The UltraClean technology is continuously on and built into the sensor to prevent fouling.

The YSI IQ SensorNet optical DO sensor employs an angled sensor tip to allow bubbles in an aeration basin to bypass the sensor. This helps prevent bubbles from sitting or bursting on the sensor and causing interferences.