Reduce capex and carbon emissions with Hach’s phosphorus real time control system. Historical plant performance need not reflect what is really achievable with existing assets and advanced control. More information.
Phosphorus - the most common cause of water quality failures in the UK. More than 50% of rivers and 75% of lakes currently exceed the set standard for phosphate levels.
Hach understands the challenges that water companies and their partners face within the AMP7 cycle. The costs of failing to meet WINEP compliance are far higher than the investment in continuous monitoring solutions. Consequences of insufficient chemical phosphorus removal can include steep fines levied by Ofwat and other environmental regulators, fish kills or algae blooms that impact community water sources, as well as negative impacts on the reputation of the water utility as a neighbor, employer and brand.
Hach can help you in realising a return for your investment by robustly controlling eutrophication and limiting your phosphorus discharge to safe and compliant levels within the Water Framework Directive.
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|
Tight |
Moderate |
High |
Segment |
Tertiary treatment (Actiflo, CoMag etc.) |
Tertiary treatment (Meccana) |
With TT |
Without TT |
P-Limit |
< 0.4 mg/l |
0.4-0.8 mg/l |
> 0.8 mg/l |
Hach Solution |
P-RTC, Filtrax Low range Phosphax Total suspended solids |
P-RTC, Filtrax Medium Range Phosphax |
P-RTC, Filtrax Medium Range Phosphax + TSS |
Solution: RTC-P provides compliance certainty in 5 simple steps
1. INVEST » 2. INSTALL » 3. COMMISSION » 4. OPTIMISE » 5. COMPLY
Since 2012 more than 1,500 standardised RTC-P control modules have been successfully installed on more than 800 sewage treatment plants with a load of just a few 1,000 PE up to 6 million PE.
With the correct combination of controllers, analysers, and communication capabilities, standard RTC installs in continental Europe and the UK have proven that quick, decisive and consistent parameter control is possible at previously unheard-of levels.
With a turnkey solution and Hach support, even the most ambitious AMP7 compliance goals are within reach.
How it works: RTC-P is feed-back and feed-forward in one
Hach’s load-based RTC-P system gives you more insight into your operations by providing two chemical dose signals from a single phosphorus measurement point.
RTC-P optimizes chemical phosphorus removal by adjusting chemical dosing in real time through the continuous measurement of phosphate concentration and flow. By maintaining consistent effluent phosphorus levels and enhancing your chemical phosphorus control system, RTC-P enables WINEP compliance certainty around the clock.
Once the system is programmed with a PO 4-P setpoint, it continuously measures PO 4-P concentration and wastewater flow rate, calculating the minimum amount of precipitant required to match the biological phosphorus uptake. The system will automatically switch to fallback strategies if input signals inflow or PO 4-P are not available.
Advantages include:
• maintaining minimum phosphorus level for biological requirement
• providing auto polish for a secondary dose point
• balancing phosphorus removal across the plant for chemical efficiency
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(The table below is full-size for best viewing experience - swipe right >>> to see it completely)
Model |
Application |
Input Parameter |
Output |
Benefit |
RTC-P |
Chemical phosphate removal |
PO 4-P, Q ln |
Q Precipitation |
Maintain compliance based on stable PO 4-P discharge values, reduced precipitant consumption and less precipitation sludge, improved acid capacity |
Because it is hosted by specific hardware, RTC-P software easily combines with other control modules.
CASE STUDY: Phosphorus outlet reduced 45% (to 0.23 mg/L) in German WWTP with annual volume of 2.3M m 3
The results were immediate and dramatic with the installation of the water intelligence system, with reductions in all parameters measured in the outflow, and in energy consumption in bio tank blowers.
Download the Case Study
CASE STUDY: Daily fluctuation delta reduced from .6 to .35 mg/L in Swiss WWTP with annual volume of 5.9M m 3
“The module has now been operating at our plant for almost three years without any problems. Using the latest software, it now works even better than before and fully meets my expectations.”
– Martin Moos, Operations Manager
Download the Case Study
APPLICATION NOTE: Improving Compliance through Real-Time Control
This application note describes a system for real-time control and the benefits it offers, specifically for plants that are controlling phosphorus by chemical dosing with ferric chloride (FeCl 3).
Download the Application Note
Online process solutions for AMP7 Phosphorus monitoring
Total Phosphorus
Discharge of phosphorus encourages the growth of algae and aquatic plants that rob streams, rivers and bays of oxygen, thereby disrupting the ecosystem. Get accurate, continuous phosphorus monitoring at values as low as 0.01 mg/L, with optional nitrogen or phosphate measurement capabilities.
Explore the EZ Series Phosphorus Analysers