Wastewater Compliance

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.

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

Online process solutions for AMP7 Iron & Aluminium monitoring

Alkalinity

Online process solutions for AMP7 Trace Metals monitoring

Zinc, Copper, and Nickel

Based on the data collected during the chemical investigation programs (CIP1 and CIP2), the environment agency adjudicates for more than 120 new permits for chemical compounds on diverse wastewater treatment works. Drivers of these new chemical consents are linked to the current quality of the water where the treated wastewater is discharged and/or to former investigations made at the treatment works. The ultimate goal is to improve river water quality or prevent it from further deterioration. Among chemicals at stake, several dissolved metals are targeted such as zinc, copper, or nickel.

Hach samplers associated to our laboratory metal solutions can help you to increase catchment knowledge during AMP7 and to identify potential traders and industrials at risk on the sewage system. In addition to these investigations, a continuous monitoring of dissolved metal in the outlet of the wastewater treatment works may be of help to demonstrate nonstop compliance, understand possible load variations and check treatment efficiency where necessary.

Everything you need to prove WINEP compliance in minutes

Test for all of the WINEP parameters at a fraction of the cost

For some facilities, buying a process analyser for every parameter doesn’t fit the budget. Instead, customise a Lab in a Box solution and get everything you need—from benchtop instruments to test kits, chemistries and supplies—for fast, accurate results throughout the AMP7 cycle.

Recommended parameters for WINEP compliance

• Phosphorus

• Iron

• Aluminium 

• Alkalinity

• Trace metals: zinc, nickel, copper, lead, chromium, cadmium, mercury

Never run out of supplies

With Pick-and-Ship, you can schedule recurring deliveries of consumable supplies so that you’re always minutes away from compliance results.

Support across all 5 steps of analysis

Sample Collection

Protocol for each test and sample type to ensure a representative sample.

Sample Preparation

Avoid common errors in pH adjustment, filtering, dilution or digestion.

Use of Standards

Accuracy check and instrument calibration for every range of analysis.

Procedure

Easy to follow with limited analytical skills. Procedures are complemented with intuitive menus on all our spectrophotometers.

Interpretation

Support for taking action based on clear analysis.