In 2010, one of the Power Plants of Puerto Rico Electric Power Authority (PREPA) faced a crisis due to biological growth in their power plant’s cooling tower. The plant was using straight hypochlorite, which was not effective at controlling biological growth.
Levels of phosphorus, a chemical element that promotes organic growth, must be controlled in wastewater coming from beverage, food and dairy processing plants. Failure to control phosphorus accurately has a negative impact on water quality and can lead to large fines.
Water is an instrumental ingredient in the manufacture of paper products. When wood products are broken down into pulp, water is used to move the slurry onto the paper machine, which is something akin to a fast moving, very long conveyor belt. Being an organic product, both pulp and paper tend to facilitate the growth of bacteria and other microorganisms.
A large vegetable processing facility was experiencing problems with its lagoon surface aerators. The company’s treatment process includes a collection and screening assembly, two anaerobic stabilization ponds and a 40 million gallon aerated lagoon.
The U.S. EPA's promulgation of the Stage 2 Disinfection By-Products Rule required the Public Works Department of Danvers, MA, to establish a Two-Phase upgrade of the plant’s treatment process in order to comply.
Mepco contracted Veolia Water Technologies to design and procure a 4,000 gpm AMD treatment plant at a mine shaft site. This new plant uses the DenseSludge technology, which maximizes water recovery and minimizes sludge volumes. Improved process control (especially pH control), reduced gypsum deposits on system components, and drier sludge of a lesser volume are the results of this innovative application.
Pure steam is a dependable method for sterilizing pharmaceutical product materials such as equipment parts, instruments, and containers. The removal of dissolved gasses is a necessary step in the steam generation process, in order to meet regional pharmacopeia criteria. Membrane contractors offer a method of gas removal that requires lower initial investment and operating costs than double-pass RO with pH adjustment. This tech brief presents the benefits of using membrane contactors to remove non-condensible gasses such as nitrogen, oxygen, and carbon dioxide from steam.
Even though 70 percent of our planet is made up of water bodies, yet the world is facing a dire scarcity of water, a basic necessity of life. More than 97 percent of the water resources available are in the form of saline water in the seas and oceans. Water is always at a high risk of getting contaminated/polluted. With rapid urbanization and demographic growth across the globe, the world has seen a staggering rise in the number of industries.
Mines throughout Pennsylvania contain millions of gallons of contaminated water, putting thousands of stream miles at risk.
Scientists are developing robots that might someday be able to creep through the pitch-black mines to help prevent spills. A 2015 spill from Colorado’s Gold King Mine unleashed 3 million gallons of water that fouled rivers in three states with toxins.
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