Acid mine drainage (AMD) is spilling out to the surface in the West Rand at a rate of around 30 million litres per month, leaving decimated ecosystems in its wake and posing critical danger to the future drinking water supply nationally – if left unchecked. “This water is essentially diluted sulphuric acid, high in sulphates with a pH of two. Anything below a pH of five will dissolve uranium,” Mintails Mogale Gold general manager of operations…

There are many indications that end users should not use a valve for flow control—or at least not to extremes.   Centrifugal pumps have many advantages compared with positive displacement pumps. They have the ability to run all over the curve. Open the valve to increase the flow, and close it to decrease the flow. This seems convenient and simple. However, this convenience can cause problems for end users. There are many indications that they should…

OLEAN, N.Y. (Feb. 26, 2014) – Napoleon Engineering Services (NES) announced the expansion of its bearing inspection services to include enhanced source qualification inspection (SQI) with bearing contact stress analysis. The new NES standard SQI test program allows a customer to qualify new suppliers through a series of extensive, independent bearing inspections. This empirically derived data collection methodology is a helpful tool for OEMs in a variety of industries, helping them to determine design integrity, manufacturing…

GONZALES — Frank Bonifay, owner of the defunct Alligator Bayou Swamp Tours, is suing Ascension Parish over two floating pumps parish drainage officials installed temporarily at the Frog Bayou floodgate on Bayou Manchac a little more than a year ago. The rented pumps, which were removed several months after they were installed, prevented flooding of homes in the Bluff Swamp area of the Spanish Lake Basin after severe rains in December 2012 and January 2013, parish…