A new method to separate boron from seawater was developed. A cost effective technology based on the reaction of glycidyl ether and amine showed particular promise. Using the technology, a compound was synthesized with glycidyl hexadecyl ether and N-methyl-D-glucamine at mild conditions. The compound showed exceptionally high boron absorption. In t...

This paper will present the Kindasa Phase-B Plant experience of a UF-SWRO-BWRO integrated membrane plant....

Fouling of RO membranes in wastewater treatment due to organic contaminants is a major challenge which has limited the broad scale implementation of the technology. A variety of detailed studies of WWRO fouling at commercial facilities are examined in this paper to better understand these fouling trends and the role of dissolved organic chemicals...

This paper discusses the design and performance of nanofiltration plants for municipal water supply and the various regional needs for the technology. The paper contains the comparison of various NF plant designs and operation conditions and concludes that these plants provide a very reliable water source to the local municipality and a water quali...

A nanofiltration membrane was successful in removing color ina highly colored wastewater from a pulp and paper plant. Initial lab trials with this color removal NF membrane and plant wastewater proved that the color could be removed at high recoveries, but when trialed at the plant, it was found that the NF elements readily fouled. Further exper...

Prolonged drought across the Southwest United States has caused water utilities to consider alternative supplies. Critical to developing these supplies is an increased reliance on proven technologies such as reverse osmosis (RO). Critical to this technology is the membrane element. While the industry is mature, advances in membrane design and co...

Though the use of membranes for reclaiming municipal wastewater is well understood thanks to over 30 years of experience, the reclamation of industrial wastewater is an ongoing challenge due to the variation and complexity of the incoming feed waters. For such waters, piloting is typically recommended. This paper will follow the process of piloting...

In many regions, wastewater discharge from industrial sites must be greatly minimized or completely eliminated. To reduce energy and capital costs, multiple membrane are often included to maximize recovery of water. Two new, key membrane processes which have been developed for this are nanofiltration membranes which separate sulfate and chloride ...