When should you replace a water meter? This question has become an evasive one for many Utilities that have to make this decision. On the basis of these meter readings, Utilities assess their water and wastewater customers with the corresponding consumption fees. Therefore, these fees, dictated by the meter's recordings, become the main source of income for the majority of Utilities.
When should you replace a water meter? A methodology for the calculation of this optimum age is presented.
Pilot tests have demonstrated that EHRSF can meet Surface Water Treatment Rule requirements.
No longer are turbidimeters the sole measurement method for water purity levels.
Aquifer storage and recovery is becoming an important water supply management tool for maintaining or enhancing the water-bearing capacity of an aquifer.
Artificial Recharge Enhances Aquifer Capacity
The end result of a prioritization system was a process designed to minimize subjective factors and rely on rational, equitable and consistent methods.The process of inventorying and prioritizing the City of Columbus, Ohio's stormwater capital improvement projects was a comprehensive undertaking. The process was designed in order to minimize subjective factors and to result in a rational, equitable and consistent method for prioritizing these projects.
Wastewater is being reclaimed for non-potable uses. The use of this water is alleviating water shormance of the valve.
In addition, buried manually-actuated valves are easier to design and install if the operating valve shaft is horizontal and the gearbox input shaft is oriented toward the ground surface.
One concern with orienting the valve shaft axis horizontally is hydrostatic torque. Hydrostatic torque is a sizable operating torque component on large valves.
A survey looked the maintenance painting costs for four large-capacity steel water tanksDetermining real maintenance costs associated with protecting large-capacity steel water tanks from corrosion has been a topic of discussion for years among specifiers, manufacturers, contractors and owners of water storage systems.
Faced with upgrading aging facilities, a Florida water utility decided to incorporate reverse osmosis.
A Philadelphia water company improved the performance of and reduced the operating costs of its filtration system with modernized high-rate gravity filters.
The latest on membrane technology for water treatment.Membrane system technology has been developed to a point where one or more of its forms can be applied to extract most of the contaminants of concern found in many raw water sources. Recognizing the importance of the latest findings to the drinking water supply community, the International Water Supply Association recently conducted a conference on the subject in Paris, France.