Guest Column | June, 2015 | Reproduced with Permission of Water Online By: Harold G. Fravel Jr., Executive Director, American Membrane Technology Association (AMTA) and Karen Lindsey, VP, Avista Technologies, Inc. In an era of inspired recycling and enviable reuse of industrial and manufacturing by-products, the water treatment industry continues to search for innovative disposal options or, …
Water Online Guest Column Articles
Understanding the Fluctuating Dynamics of Reverse Osmosis System Flow, Rejection, and Pressure
Guest Column | January 9, 2015 | Reproduced with Permission of Water Online By Harold G. Fravel Jr., Executive Director, American Membrane Technology Association (AMTA) and Karen Lindsey, VP, Avista Technologies, Inc. A well-designed reverse osmosis (RO) system is truly an innovative marvel, expected to produce a consistent water quality and quantity under feed conditions that may be in constant flux. Innovative …
Market and Process Trends in Membrane Technology RO, UF, MF, and MBR
Guest Column | December , 2014 | Reproduced with Permission of Water Online By Harold G. Fravel Jr., Executive Director, American Membrane Technology Association (AMTA) and Karen Lindsey, VP, Avista Technologies, Inc. Regional droughts, particularly in California and Texas, have been widely covered in the national media and most Americans are well aware that solving water scarcity …
Understanding Salt Solubility Reaps Benefits In RO System Performance
Guest Column | October 16, 2014 | Reproduced with Permission of Water Online By Harold G. Fravel Jr., Executive Director, American Membrane Technology Association (AMTA) and Karen Lindsey, VP, Avista Technologies, Inc. No matter where it originates, the feed water to downstream reverse osmosis (RO) and nanofiltration (NF) membranes contains some level of dissolved salts. This …
Understanding Salt Passage Vs. Salt Rejection In Reverse Osmosis Systems
Guest Column | August 29, 2014 | Reproduced with Permission of Water Online By Harold G. Fravel Jr., Executive Director, American Membrane Technology Association (AMTA) and Karen Lindsey, VP, Avista Technologies, Inc. The terms “separation” and “rejection” can induce a variety of negative emotions in even the most stoic among us. But effective separation and rejection …