Wastewater Averaging FAQ. What is a wastewater average? Why does the City of Austin use a wastewater average as the basis for my wastewater bill?
How do I know the specific dates my water usage will be monitored for my new wastewater average? How is my wastewater average calculated?
For example, during your wastewater averaging period you use: 4, gallons of water in month 1 4, gallons in month 2 and 5, gallons in month 3 After adjusting for the number of days in a month, your wastewater average is 4, gallons per month.
Why is wastewater averaging done mid-November to mid-March? Why can't everyone use the same months to calculate their wastewater average? Measuring volume: the volume of water Q is equal to the wetted cross-sectional area of the pipe A times the average velocity of the water v.
Measuring mass: the mass flow of water passing through a flow meter W is equal to the fluid density r times the volume of water Q. We are specialists in the design, manufacture and installation of ultrasonic wastewater flow and level monitoring equipment for the water industry.
At Detectronic, we provide a range of wastewater management services to help you. A quote More information Other below This form collects your name, telephone number and email address so that we can communicate with you and provide any assistance required.
Please check our privacy policy to see how we manage and protect your data. An electromagnetic flow meter is typically recommended because the water flows directly through the meter. Contact instruments are used for measuring the volumetric flow rates of any fluid that can adequately conduct electricity in closed pipelines. An explosion-proof differential pressure transmitter can be the ideal choice in this instance. It uses a capacitance pressure sensor to measure differential pressure.
This sensor is often selected in level monitoring applications to measure liquid and gas, and to remove steam. An ultrasonic level transmitter offers continuous measurement of the levels and volumes of media in open and closed tanks. An explosion-proof temperature transmitter is often recommended. This is a microprocessor-based, high-performance temperature transmitter. It includes flexible sensor input and output, automatic compensation of ambient temperature, and a self-diagnostic function to determine the error in the instrument and alert the user.
The secondary treatment process consists of a biological treatment. It includes anaerobic as well as aerobic processes. The main purpose of this process is to reduce and remove the concentration of organic and inorganic compounds. This is important because up to 90 percent of organic matter can be successfully removed through it. The biological treatment uses specific microorganisms such as bacteria and protozoa to break down and decompose organic matter.
Following this treatment, a water pump is used as a secondary clarifier. This process can use flow, pressure and temperature measurement. The recommended instruments often are an electromagnetic flow meter, an explosion-proof differential pressure transmitter and an explosion-proof temperature transmitter.
The sludge produced by primary and secondary treatments is roughly 99 percent water. A thickening tank is used to collect the sludge, let it settle, and separate from the water within a hour period.
In addition, the Dura Mag comes equipped with an internal datalogger with five years of data storage to ensure you always have access to your historical data. The Dura Mag also has several telemetry-ready output options, and the converter settings are USB port accessible which eliminates accidental setting changes.
Flow measurement can be defined as quantification of the movement of water in a given channel. Water meters usually control measure and display total usage in cubic meters, on either mechanical or electronic registers.
Flow can be divided into two main flows which are: Open channel flow and Closed conduit flow. Flow is controlled by use of valves at intervals to either to slow down, allow faster flow or completely shut down the flow. Some water meters usually perform both the function or making readings and controlling flow while others just conduct measuring only.
Meters for reclaimed water contain special lavender register covers show that the water is non-potable. Velocity-type meters measure the velocity of flow through a meter of a known internal capacity. The speed of the flow can then be converted into volume of flow for usage.
Since Multi-jet meters are usually very accurate in small sizes they are normally used for residential and smaller commercial uses. Turbine meters are not as accurate as jet meters and displacement meters at low flow rates.
A compound meter is used where high flow rates are necessary.
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