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Record summer heat killing more fish | Great Lakes Echo

Record summer heat killing more fish | Great Lakes Echo | Wastewater | Scoop.it

Summer fish kills are not unusual. Heat and drought means less oxygen is dissolved in water. This year there is more of both in the Great Lakes region, resulting in more fish kill reports than usual.

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Wastewater
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Online Wastewater Process ISE Sensors | How to Get the Best Data | YSI IQ SensorNet

Ammonium and nitrate sensors based on ion selective electrode (ISE) technology are now widely available for process monitoring of wastewater treatment. The adv…
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Wastewater Monitoring: Lightning vs. the IQ SensorNet Water Quality Monitoring System

Wastewater Monitoring: Lightning vs. the IQ SensorNet Water Quality Monitoring System | Wastewater | Scoop.it
The old adage is that lightning never strikes the same place twice. But if it does, the team at the Cedarburg Wastewater Treatment Plant won’t be concerned about their water quality monitoring system. After all, they’ve seen it before, after a 2014 strike blew out one of their aerator drives and its motor, but required only a reboot of their YSI IQ SensorNet 2020 XT wastewater process monitoring system - to get it up and running again.
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Monitoring Orthophosphate for Reduced Chemical Costs in Water Resource Recovery Facilities

Monitoring Orthophosphate for Reduced Chemical Costs in Water Resource Recovery Facilities | Wastewater | Scoop.it
The Fox River Water Pollution Control Center (FRWPCC), operated by the City of Brookfield, is an activated sludge plant with tertiary filtration designed for an average daily flow of 12.5 million gallons per day (MGD) and a peak wet weather flow of 50 MGD. The plant complies with a 1.0 mg Total Phosphorus discharge limit by adding alum to secondary treatment. The problem with this method is that treatment required an average dosage of over 8,000 gallons per month of alum at a cost that often exceeded $10,000! FRWPCC needed a solution that would reduce chemical usage and, ultimately, save the city money. The facility was also looking for an overall solution that would allow them to cost-effectively meet a more stringent limit of 0.075 mg TP/ L in the future.
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Do You Wonder About the Future of Wastewater Treatment?

Do You Wonder About the Future of Wastewater Treatment? | Wastewater | Scoop.it
Are you a techie, wanting to keep up with the latest trends in wastewater treatment technology? If so, you would be very excited to hear what was presented at the WEF/IWA Nutrient Removal and Recovery (NRR) Conference held this year i
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Online Monitoring of Nitrate with Optical Sensors | YSI | Webinar

Nitrate is an important control parameter for many water resource recovery facilities (WRRF) which are required to denitrify wastewater. Two styles of immersib…
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Dr. Smith's Travels in the World of Wastewater

Dr. Smith's Travels in the World of Wastewater | Wastewater | Scoop.it
The NY Water Environment Association (NYWEA) holds its annual conference a stones’ throw away at the Marriott Marquis. My technical presentation titled “Process Monitoring of Nitrate, Nitrite, and COD with Optical Spectral Sensors” was particularly relevant as the NYC Department of Environmental Protection (DEP) recently began to include NitraVis optical nitrate sensors as part of their Carbon Addition project.
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Enhanced WWTP Performance & Reduced Operating Costs | Online Monitoring and Control

Enhanced WWTP Performance & Reduced Operating Costs | Online Monitoring and Control | Wastewater | Scoop.it
YSI and Sanitaire hosted a webinar recently titled ‘Case Study - Enhanced Performance & Reduced Operating Cost With Online Process Monitoring and Automated Control’ and part of our Water Resource Recovery Facility Webinar Series.
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How To Control Denitrification Using Online Nitrate Sensors - White Paper

How To Control Denitrification Using Online Nitrate Sensors - White Paper | Wastewater | Scoop.it

Download the free wastewater white paper from YSI. How to Control Denitrification Using Online Nitrate Sensors.

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YSI IQ SensorNet Water Quality System Solves WRRF Issues - YouTube

The YSI IQ SensorNet (http://www.ysi.com/iq) modular, continuous water quality monitoring and control system is capable of assisting many Wastewater Operator...
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Researchers hint at CCS for wastewater industry - Recycled CO2 boosts methane from sewage sludge

Researchers hint at CCS for wastewater industry - Recycled CO2 boosts methane from sewage sludge | Wastewater | Scoop.it
WASTEWATER treatment plants could use captured CO2 to boost their production of saleable methane while reducing their carbon footprint, UK researchers report.
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Treating India's wastewater: why inaction is no longer an option

Treating India's wastewater: why inaction is no longer an option | Wastewater | Scoop.it
If India can deploy adequate technology to treat water, it could significantly expand its water supply and better water means better public health and economic development
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Activated Sludge | Three Steps to Improve Your Process Efficiency

Activated Sludge | Three Steps to Improve Your Process Efficiency | Wastewater | Scoop.it
Optimization of the activated sludge process requires careful management of three critical parameters. Over the years, wastewater professionals have based their control decisions on measurements from batch tests supplied to various samples or from infrequent laboratory analysis. Those are measurements done on composite samples for compliance purposes. Today, besides talking about the three things you need to know, we're also going to offer you some alternatives for monitoring that can improve your ability to optimize the process.
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The Science of Phosphorus | Blog Series | Blog 4 of 5

The Science of Phosphorus | Blog Series | Blog 4 of 5 | Wastewater | Scoop.it
Chemical removal of P has been utilized for decades. It is easily integrated into any configuration with the addition of facilities for chemical storage and feed. It starts working quickly and is easy to turn down or turn off. Chemical treatment is a generally a good choice for WRRF with one or more of the following characteristics: small flows (<0.5 mgd), extended periods of unattended operation, or discharge limits of 1.0 mg P/L or higher.
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The Science of Phosphorus | Blog Series | 3 of 5

The Science of Phosphorus | Blog Series | 3 of 5 | Wastewater | Scoop.it
The two most common measurements of phosphorus in wastewater are Total Phosphorus (TP) and ortho-phosphate (OP). TP is typically the compliance parameter required by NPDES discharge permits; OP is a useful process control parameter. TP is measured following digestion of the sample with acid and heat. OP is not well defined, analytically speaking. It is generally assumed to consist of dissolved reactive phosphorus (DRP) which may consist of compounds besides ortho-phosphate.
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The Science of Phosphorus | Blog Series | 2 of 5

The Science of Phosphorus | Blog Series | 2 of 5 | Wastewater | Scoop.it
When a watershed does not meet attainment status for designated uses, there are three main mechanisms for regulation of P in treated effluent from a WRRF discharged to surface water: technology-based standards, total maximum daily loads (TMDL), and water quality based emission limits (WQBEL). Technology-based standards are probably the most common form of regulation. However, it is the WQBEL which are currently the driving force for more widespread regulation.
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Wastewater Monitoring & Control Instrumentation | How Does It Work?

Wastewater Monitoring & Control Instrumentation | How Does It Work? | Wastewater | Scoop.it
Our process control experts have been busy traveling around the United States, visiting hundreds of water resource recovery facilities and engineers. During those visits, we have been asked questions about process monitoring and control. We narrowed these questions down to three. These three were the most frequently asked questions
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Troubleshooting Nitrification and Denitrification in Wastewater

Troubleshooting Nitrification and Denitrification in Wastewater | Wastewater | Scoop.it
The proper tools are essential to fixing any problem. Over the years, Ohio EPA’s Compliance Assistance Unit (CAU) has helped dozens of water resource recovery facilities (WRRF) get back into and maintain compliance with NPDES discharge permits. Their field toolkit has included an assortment of batch sampling kits and handheld instruments. Each tool had its place but each also had limitations and, as a result, the compliance puzzle often was missing important pieces. Increasingly, as nutrient limits were incorporated into discharge permits, the missing piece was characterizing the dynamics of nitrification and denitrification.
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Case Study: Enhanced Performance & Reduced Operating Costs with Online Process Monitoring and Automated Control

Case Study: Enhanced Performance & Reduced Operating Costs with Online Process Monitoring and Automated Control | Wastewater | Scoop.it

Meeting wastewater treatment objectives and staying within budget requires careful control of the process. At a conventional activated sludge (CAS) facility in Wisconsin, a full scale WWTP demonstration of Sanitaire's OSCAR™ process performance optimizer and YSI's IQ SensorNet process monitoring system demonstrated a substantial savings in operating costs while maintaining treatment performance. 

Join YSI and Sanitaire application experts for a 1 hour live webinar presentation on September 17th at 1:30 EDT to learn more about this project. The webinar will provide details about the system design and operation, as well as the implementation of the monitoring and control system including setpoints, sensor location, and other critical control parameters. 

Find out how a 10% savings in energy cost and a projected annual savings of almost $75,000 were achieved with dissolved oxygen (DO) monitoring and aeration control and orthophosphate monitoring and chemical dosing control. 

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Des Moines Sets Nitrate Removal Record; Continues With Lawsuit

Des Moines Sets Nitrate Removal Record; Continues With Lawsuit | Wastewater | Scoop.it
Iowa lawsuit requiring rural drainage districts to obtain nitrate discharge permits could have nationwide implications for utilities
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The Phosphorus Problem: Treatment Options and Process Monitoring Solu…

Recent events have demonstrated that excess phosphorus in receiving waters can create many serious problems including impairment of drinking water supplies. Fo…
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Meeting Thursday on project to clean treated wastewater flowing into Ichetucknee

Meeting Thursday on project to clean treated wastewater flowing into Ichetucknee | Wastewater | Scoop.it
A $4.6 million project in Lake City is planned to reduce nitrogen pollution in the Ichetucknee River by converting a large area of the spray fields for the city’s wastewater treatment plant into artificial wetlands.

Via Sylvain Rotillon
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Xylem comes on board as 2014 WWAC Symposium Platinum Sponsor - 2014 ISA Water/Wastewater Symposium

Xylem comes on board as 2014 WWAC Symposium Platinum Sponsor - 2014 ISA Water/Wastewater Symposium | Wastewater | Scoop.it
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Myths And Realities Ammonium Based Aeration Control In Wastewater

Myths And Realities Ammonium Based Aeration Control In Wastewater | Wastewater | Scoop.it
The introduction of simple, reliable, and affordable in situ sensors based on ion selective electrode (ISE) technology provides the opportunity for...
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