Monoclor®RCS Residual Control System
Constant and Reliable. That's Monoclor® RCS.
Monoclor® RCS systems are designed to take the expense and complexity out of managing chloramine residual levels in distribution networks. By automatically managing chloramine residual levels in strategically located reservoirs, utilities no longer have to engage in costly procedures such as superchlorinating lines, emergency/manual tank boosting, frantic re‐testing and aggressive tank cycling.
Monoclor® RCS is a chloramine residual control system that maintains chloramine residual within the reservoir in three ways: 1) by creating a homogeneous mixture, 2) by introducing chemicals rationally and 3) by monitoring the response with control logic in real-time.
What Makes Monoclor®RCS Different
Managing water quality in drinking water distribution system is challenging since the disinfectant used, chlorine or chloramine, is not persistent. Water quality degrades as the water age in the distribution system. Operators must carefully regulate disinfectant residual while reducing the potential for disinfection byproduct formation. Traditional tools to manage disinfectant levels in the distribution system have been costly, time consuming and inadequate. Monoclor® RCS allows to:
- Proactively controls distribution network chloramine levels (preventing nitrification, coliform “hits”) required intervention at the water storage tank level
- Eliminates the need for wasteful and costly flushing, tank cycling, manual tank climbing/boosting, tank dumping and line “burning” campaigns
- Allows operators to toggle between chloramine and free chlorine regimes as needed
- Is SCADA capable
- Has over 100 installations nationwide in tanks ranging in size from 100,000 gallons to over 50 million gallons
Monoclor® RCS systems automatically maintain chloramine residual set‐points in water storage tanks eliminating nitrification, coliform “hits”, unnecessary tank cycling, and manual tank boosting.
The Right Chemical at The Right Time
Powerful tank mixing is a key part of the Monoclor®RCS water quality solution. Our system utilizes the most appropriate mixer to rapidly blend disinfectant into the entire tank volume.
The Monoclor® RCS system then samples the homogenized water and determines the appropriate chemical dosing strategy based on the disinfectant levels present in the reservoir.
Sophisticated control algorithms utilize real‐time tank sample data and automatically calculate the dosing of chemical reagents for the particular tank based on the desired set‐point and tank’s position on the breakpoint curve. Reliable chemical dosing skids ensure precise ammonia and chlorine dosing into the Monoclor® RCS powerful in‐tank mixing zone.
By dosing the right chemical at the right time into a completely mixed tank, the Monoclor® RCS system quickly reaches and maintains the desired residual set‐point.
Continually Monitor Tank Chemistry with Chemlocker® Reservoir Dosing Station
Chemlocker® reservoir dosing station are designed to take the expense and complexity out of managing disinfectant residual levels in distribution networks. By automatically monitoring disinfectant residual levels in strategically located reservoirs, utilities no longer have to frantically react to declining residual levels with emergency/manual tank boosting, frantic re‐testing and aggressive tank cycling.
The Chemlocker® system includes a sophisticated real‐time analytical tool that collects and transmits tank sample data (pH, total chlorine and ORP) to enable timely operator intervention – before an emergency occurs. Once an operator decides that tank boosting is required, the chemical reagents are introduced into the tank via a convenient venturi driven hose connection at the ChemLocker® panel. Powerful tank mixing ensures that the chemical reagents are immediately mixed to start boosting the tank residual level.
The Chemlocker® system provides operators and water quality professionals with a simple water quality management tool that can aid disinfectant residual management by providing both reservoir residual level assessment and chemical dosing of hypochlorite and or ammonia to reassert control to a free-chlorine or a chloramine disinfectant regime.
The Chemlocker® reservoir dosing station replaces the dangerous practice of manual dosing with buckets of bleach hauled up ladders or tank stairways. When complemented with a powerful mixing and in-tank chemical introduction tool, Chemlocker® is unbeatable in managing distribution system water quality.
Backed by over 10 years of experience in improving distribution network water quality, the Monoclor® RCS system has 100+ installations nationwide in tanks ranging in size from 100,000 gallons to over 50 million gallons.
Four Ways Monoclor® RCS Maintains Disinfectant Residual Set-Points: Mix, Monitor, Intervene and Manage
By combining powerful tank mixing, advanced water quality sensors, an automated chemical dosing system and feedback loop, the Monoclor® RCS integrates four discrete functions to maintain disinfectant residual set-points.
Achieve complete disinfection homogenization, maintain chemical and thermal equilibrium.
Analyze and respond to changing tank conditions in real time.
Dose disinfectant to achieve the desired disinfectant residual set-point.
Monitor tank equilibrium in real-time to automatically respond to changing tank conditions.
How Monoclor® RCS System Achieves and Maintains Tank Equilibrium
The Monoclor® RCS system utilizes a powerful active mixer to rapidly blend disinfectant into the entire tank volume. The Monoclor® RCS system then samples the homogenized water and determines the appropriate chemical dosing strategy based on the disinfectant levels present in the reservoir. By dosing the right chemical at the right time into a completely mixed tank, the Monoclor® RCS system quickly reaches and maintains the desired residual set‐point.
How do PAX Mixers transfer energy leading to homogeneous tank conditions?
PAX mixers transfer motive energy to the mass of water in the reservoir, placing it in motion and ensuring a fully homogeneous condition.
In addition to removing temperature stratification which can hinder consistent disinfectant residual distribution, a fully mixed tank ensures accurate process feedback control in the dynamic environment of a water storage tank.
Chemical injection occurs in the high energy mixing zone allowing for complete mixing and distribution of the applied chemicals.
How Chlorine Boosting and Chloramine Formation Work
If the disinfectant residual drops below a predetermined set point, chlorine only or ammonia is dosed into the reservoir. A Patented algorithm assesses the position of the homogeneous tank chemistry on the breakpoint curve and makes the correct dosing decisions. The Monoclor® RCS process is completely compatible with gas chlorine, bulk hypochlorite and on-site generated sodium hypochlorite. When chloramine delivery is a requirement, liquid ammonium sulphate (LAS) is the feedstock of choice.
The Chemlocker® System
The Chemlocker® system includes a sophisticated real‐time analytical tool that collects and transmits tank sample data (pH, total chlorine and ORP) to enable timely operator intervention – before an emergency occurs. Once an operator decides that tank boosting is desired, the chemical reagents are introduced into the tank via a convenient venturi driven hose connection at the Chemlocker® panel. Powerful tank mixing ensures that the chemical reagents are immediately mixed to start boosting the tank residual level.
The Chemlocker® Reservoir Dosing Station provides operators and water quality professionals with a simple water quality management tool that can aid disinfectant residual management by providing both reservoir residual level assessment and chemical dosing of hypochlorite and or ammonia to reassert control to a free-chlorine or a chloramine disinfectant regime.
Total Chlorine Sampling and Analysis
- An integrated total chlorine analyzer provides dynamic tank residual analysis based on real-time sampling from the tank itself.
- Data availability for the overall network SCADA system.
- Simple eductor system for precise chemical injection of both ammonia (in the case of chloramine boosting) and hypochlorite (chlorine).
- A booster pump is optional where a high pressure water source is unavailable on-site.
- The analog flow information from the tank mixer is available locally at the Chemlocker® panel and also via SCADA for remote monitoring. This flow information provides vital feedback to the operator so as to preclude the possibility of chemical addition without proper simultaneous mixing and dispersion.
Smartboost® Free Chlorine Boosting Systems utilize water storage assets as convenient and controllable intervention points for managing distribution network chlorine levels.
Similar to how the Monoclor® RCS chloramine management system maintains a constant disinfectant residual set-point in water tanks, Smartboost® systems are used with distribution systems that utilize free chlorine residuals.
Benefits of Monoclor® RCS
Powerful Mixing for Rapid Disinfectant Homogenization
Integrates with Liquid, Gas, or OSHG
Real-Time Sampling and Analysis
Data Logging and Remote Monitoring
Safe Introduction of Chemicals
Mobile Systems Available for Disaster Preparedness
Goal: Reduce the complexity of managing multiple water sources, maintain disinfectant residual levels and reduce costly flushing.
Solution: A Monoclor® RCS system featuring and continuous on-line water analysis using a smart control system
City of Milpitas
Goal: Manage disinfectant residual levels without the need for frequent testing, manual boosting and tank cycling
Solution: A Monoclor® RCS system and a Microclor® On-Site Hypochlorite Generation System
City of DeSoto
Goal: Reduce flushing; maintain acceptable disinfectant residual levels
Solution: A Monoclor® RCS system, tank mixing and continuous on-line water analysis using a smart control system
"We used to struggle with water age in this part of our system, but the RCS has made our water age problems essentially go bye-bye.
It’s like a little treatment plant. We’re controlling the water."
Checks All The Boxes
Targeted disinfectant control without a treatment plant upgrade.
Built-in multi-operational fail safes, alarm redundancy.
Quick reaction to imported water upsets quality changes.
Reduces flushing and nitrification events.
Ideal for retail systems without treatment capabilities.
Provides dosing option for wholesalers with problematic zones.
"Ever since we installed the Monoclor® RCS, I have much more confidence that we can maintain a meaningful residual throughout our distribution system."
Let's get the conversation started
Tell us a little bit about you and the information you’re looking for and we'll send you information by email about the topics you are interested in. Check the box to have a cleanwater1 expert contact you within one business day.
Learn At Your Pace
By subscribing to our learning track, you will receive emails featuring videos, webinar invites, informative articles and more.
View Our Online Library
Featuring brochures, case studies, data sheets and more. Filter by product category, brand, location, use case or document type.
Connect With Us
Contact a member of our team using our online form, by email or give us a call. We look forward to speaking with you.