Measuring sewage and wastewater flow is one way for maintaining a strong sewage infrastructure. Wastewater measuring and monitoring in sewage lines are done to provide flow information and continuous monitoring. This is done when immediate steps are taken to avert spilling of sewage into the nearby environment, when it reaches its flowing capacity. When the sewage flows to the surrounding environment, it can cause a serious public health threat.
How Are The Sewage Levels Measured?
Sewage level measuring is one of the most frequently measured factors in wastewater transportation and in treatment plants. This undertaking is influenced by the need to get permit reports for the National Pollutant Discharge Elimination System billing, in-plant process control and the design of new facilities.
Sewage levels are measured by use of simple plant designs and instruments that are fitted along sewage lines to relay information once wastewater flow has reached critical levels. You will find that level sensor for liquids are installed at various positions in the sewage network to alert operators when the flow level has surpassed the critical thresholds.
Information gathered from level sensor for liquids are then used to plot characteristic flow rates. With data derived from various instruments, it is then used to forecast issues of capacity and to alarm whenever sewage lines overflow. As such, maintenance can be arranged or strategies for size optimization deliberated.
Instruments Used To Measure Sewage Level:
ADS Debut New Level Monitor
ADS is a cost-effective device that is easy to use in sewage network level monitor that relays early overflow detection. It is self-contained and wireless thus alerts sewer operators through email or text once the flow levels have surpassed the acute thresholds.
This device features an ultrasonic sensing tech, which helps in providing a high-accuracy detected level measurement right from the top of a manhole into the sewer line invert up to 20 feet. Besides, its echo is effectively designed or ultralow power usage, this makes it yield up to five-year battery life. It also assimilates with the ADS’ intuitive FlowView web-based interface for data assemblage and scrutiny.
As such, ADS monitor provides benefits an economic level monitoring answer for timely warning of preventable blockages like root invasion, sedimentation, and debris. Additionally, it provides an uninterrupted collection system monitoring from prompt detection to overflow notifications.
Metasphere Point Colour RTUs
This level sensor liquids features three battery driven RTUs, green, orange and blue points. Point blue and orange are the appropriate ones for sewer network level monitoring application. However, a major difference arises between the two. Point Blue is IECEx Type 0 credited thus perfect for placement in the sewer level network that has been labeled as basically safe.
Pulsar dBi HART Ultrasonic Level Transducer
Pulsar dBi HART is an Ultrasonic level transducer that is purposely designed for sewer network level monitoring. It features the following:
• Higher masking level of incursions and narrowing of beam
• Has a lower power input, but a great acoustic power output giving a reliable and effective information
• Quick boot up
• Fabricated echo recognition application
• A wide range of level sensors and variable cable lengths up to 30 meters
A ˊPalletteˊ Metasphere‘s web-based data visualization and management platform. This application is a luring feature for most clients that have no top-end data visualization and management platform. This is because it uses a ‘Medina” that is a Metasphere’s own data procedure. Basically, it allows users to monitor network overview, site overview and outstation view.
Its data movements, alarms, and thresholds can be view and managed almost in real time. Moreover, RTUs can be shaped remotely through the Palette.
Submersible Pressure Sensor
The high-level submersible sensor can be used to measure and monitor the sewage network in the entire pipeline structure. The LW-1 model is well designed for measuring and monitoring wastewater levels. Its strong design and great pressure transducer port stop that it from being clogged and minimizes its maintenance even when used in contaminated areas.
The submersible pressure transducer also features a low power output signals good for battery usage. Most importantly, they can provide accurate levels of flow at any point they are installed.
Intrinsically Safe Submersible Pressure Transmitter
The IL-10 model of this device is well designed to meet the highest level of measurements. It features ingress protection IP68 and up to 300m immersion depth, an explosive safeguard in line with the IECEx, FM, ATEX, and CSA. Thus, it is suitable for level measuring in risky areas.
Due to its high level of accuracy and reliability level, it is an ideal device for al level measuring in sewage network.
Potential Issues That Arise
Certainly, mismeasuring the flow level of sewage network can cause a serious effect on sewage system operation and the infrastructural designs as well. Besides, it can cause consenting and the evaluation of the effects on the surrounding environment. But where does the rain starts to beat us?
An obvious answer to this question is the wrong design of flow measurement structures from implementing the wrong technology in the wrong place to poor operations. Besides, a deliberate tampering or misguided decisions make the sewage level measurement a problem.
The first issue is not having in mind the kind of instruments going to be used when designing a sewage network and what it requires for its management. Thus, when designing the wastewater networks let’s have the right technology for the correct measuring purpose in mind.
Secondly, an issue arises when the main aim when retrofitting flow measurement devices is to make them fit. For instance, when a flow meter is forced to fit in, it can result in a mismeasuring of the flow level. Thus, it will provide wrong information about the sewage low level.
Lastly, design and engineering issues may arise due to the selection of inappropriate flow device technology. Mostly, designers and engineers rely on suppliers to provide them with the best devices at a certain time. However, the rule here is to think of how the measuring device is going to be operated, maintained and accessed within the condition of the sewer line.
Certainly, many different ways exist for measuring sewage flow. However, selecting the right technology which is able to give the most reliable level measurement with the least maintenance needs should be the main goal for sewer operators. Having the right and dependable flow level measurements will help them in maintaining a strong sewage network infrastructure.