We’ve all seen it in movies…prison inmates sneaking cigarettes and other contraband from one person to another while guards are not looking; and while these scenes from cinema may be highly dramatized, the reality is that goods do get smuggled throughout prisons and correctional facilities. One correctional facility located in the Great Plains region had to deal with the very real consequences of smugglers’ tape being flushed down toilets.The Challenge
While there is great effort made to restrict the flow of contraband throughout a prison, this correctional facility struggled to keep unwanted materials from entering the sewage system. Tape, pieces of cloth, and other evidence of contraband smuggling were being flushed through the septic system and made their way into a wastewater sump located outside of the correctional facility.Read More
Potato chips – they’re almost as American as apple pie. They are ubiquitous in our lives, commonly showing up at lunch time and featured prominently at picnics and pot lucks.
Details around the invention of potato chips vary depending on the source, but it’s generally agreed that in 1853 a man named George Crum, who was a cook at Moon’s Lake House in Saratoga Springs, New York, developed what we now think of as “traditional” potato chips.
The Birth of an Industry
At that time, it wasn’t uncommon for potatoes to be fried. In fact, it was common enough that recipes for fried potatoes showed up in several cookbooks of the day. But they were far from the crunchy, salty, satisfying morsels we have today.Read More
Based in North Dakota, Industrial Equipment Sales & Service (IESS) has been providing high-quality pumps, parts, and services to the oil and gas industry since 1999. IESS was contacted in 2014 by a sand and gravel wash plant that was trying to find a more economical way to recover the sand fines that they had previously been lost in the process of cleaning aggregate. Sand fines, which are essentially granular sedimentary particulate, are typically required for the mixing of a high-grade concrete commonly used in oilfield applications.
The sand and gravel wash plant initially tried using a 2-inch self-priming centrifugal pump from a well-known manufacturer, but due to the high abrasiveness of the process slurry, the 2-inch self-priming centrifugal pump failed after only 245 hours of operation.Read More
The municipal bus service for a large Southwestern city covers some 1,200 square miles of territory, operating a fleet of 450 buses and 100 vans that carry an average of 255,000 passengers a day. Every night between 11 p.m. and 5 a.m., the vehicles head to a “bus barn,” or maintenance depot, where they are washed, cleaned, refueled and, if necessary, repaired for the next day’s routes. It takes about two minutes to wash each bus, inside and out.The Challenge
For more than year beginning in October 2010, the Southwest endured one of the most severe droughts in recorded United States history. Through the first ten months of 2011, Texas, for example, received 15 inches less rainfall than average, lowering streams and reservoirs to some 50 percent of their capacities and causing devastating losses to farmers and ranchers.Read More
Since 1978, Tencarva has provided a range of rotating process equipment as well as repair and field services to industrial companies and municipalities throughout the Southeastern United States. Over the past few years, Tencarva worked with a large chemical company in Tennessee that had frequent pump failures due to solids and PH issues in a waste pit application. Mechanical seal failure due to solids contamination was the main culprit.The Challenge
The manufacturing facility had a sump that relied on two effluent pumps to transport wastewater out of the plant. While one pump had initially been intended to operate as a backup, both pumps had been operating continuously to accommodate the high flow rate into the wastewater sump. Solid materials, such as zip ties, plastic tags and bags, that entered the wastewater stream from drains throughout the production facility, would enter the wastewater sump and damage the effluent pumps.Read More