Micropollutants, antibiotic-resistant germs, and phosphorus from wastewater treatment plants are increasingly polluting the aquatic environment. With the BIO-CEL® Activated Carbon Process, MICRODYN-NADIR has developed a process that effectively removes these pollutants from the effluent of wastewater treatment plants. This technical report presents the process and its performance and economic efficiency.
Membrane systems have become a critical part of most modern dairy plants. These dairy membrane systems follow strict sanitary guidelines, including the use of sanitary membrane elements and daily cleaning cycles that require significant volumes of water. As environmental regulations tighten and many food and dairy companies adopt sustainability goals, reducing the water and energy usage of these critical membrane systems has become a high priority for many users. This white paper focuses on one of the key areas in a sanitary membrane system that has the potential to unlock substantial water and energy savings: bypass flow.
This paper was presented at the 80th International Water Conference held November 10-14, 2019 in Orlando, FL. While spiral-wound reverse osmosis (RO) and nanofiltration (NF) membrane elements have proven very successful in a variety of desalination applications, more and more applications are emerging that require spiral-wound membrane elements capable of handling high temperatures or extreme cleaning conditions. Because industry-standard RO and NF water elements are limited to a maximum operating temperature of 45°C (113°F), membrane manufacturers are investigating alternative materials to build high temperature elements for applications where standard RO and NF elements cannot be used. Learn more about why high temperature spiral-wound elements are needed, which applications require these types of elements, and how different element components can be combined to tackle an even broader range of applications than ever before.