WE&T Magazine

WET_cover1_Apr16 90Water Environment & Technology (WE&T) is the premier magazine for the water quality field. WE&T provides information on what professionals demand: cutting-edge technologies, innovative solutions, operations and maintenance, regulatory and legislative impacts, and professional development.

 


April 2016, Vol. 28, No.4

Featured Articles

A clearer view on clear water

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How much infiltration and inflow (I/I) leaks into sewer systems in the U.S.? The truth is no one really knows. But, municipal and federal agencies long have recognized the problems associated with I/I in separate sanitary collection systems.

I/I results from clear water (from rainfall or groundwater) entering a collection system. This problem has been studied in detail in some municipalities — mostly in systems with sanitary sewer overflows (SSOs) where cities have received an administrative order or consent order to stop them. However, the only information available in the literature at the state or national level appears to be based on indirect estimates of the extent and quantity of I/I.

 

Collection system enlightenment

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Like many Florida cities, Crystal River relies heavily on tourism. However, while some communities promote beaches and others tout local theme parks, in Crystal River, it’s all about the manatees. 

But a pollution problem in recent years threatened the manatee migration. Residential septic tanks, leaky sewer collection lines, and fertilizer runoff all contributed to the problem.

Civic leaders acted swiftly to begin a remediation program. They installed new vacuum sewers to replace the septic tanks, slip-lined the existing sewer lines, and curbed fertilizer runoff. 

 

 

News

Preparing Cities for a greener future — in more ways than one

news WEF, DC Water partner to create green infrastructure certification program to promote sustainable stormwater management and spur economic growth. Read more

Coming in the next issue:
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Trust technology

Almost all of us walk around with a personal computer that we trust to direct us through traffic, keep us in contact with our friends and family, capture our photos, and tell us where to have lunch. But apply that same level of technology to our working lives and we become cautious.

But, many aspects of the water sector are beginning to embrace integrated computer technologies. Supervisory control and data acquisition (SCADA) systems and laboratory information management systems (LIMS) are helping operators capture more data more easily. By incorporating remote reporting alone — from within a facility or across an entire district — these systems are eliminating excess travel as well as minimizing transcription errors and enabling centralized decision-making. Add in the ability to control systems remotely and operation can be conducted at separate locations miles apart to ensure that everything works in harmony.

Industrial applications are one area where use of these technologies is growing fast. The ability to make the most product from the least amount of resources while minimizing waste is one of the strengths of data-rich systems. This is especially true when it comes to making beverages where water is both a feedstock and a process need. Advantages include reusing water from one process in another process directly, treating wastewater for reuse, and eliminating pollutants from water leaving a facility to protect the environment or avoid surcharges for treatment at a municipal water resource recovery facility.

The technology helps collect data so skilled operators and designers can focus on maintaining and improving systems and making the most of our limited water resources.

Also in this issue:

 
  • Operator essentials. What every operator needs to know about shortcut nitrogen removal.
  • A consolidation of power. A laboratory removes a serious safety problem and simplifies operation by upgrading its uninterruptible power supplies.