Water and Wastewater Features

Water and Wastewater Features Archive

Oil and gas: Treatment and discharge of produced waters offshore Oil and gas: Treatment and discharge of produced waters offshore

There are some very specific problems that need to be overcome when dealing with produced waters from offshore oil and gas production. In the first of a series of three articles, oil industry expert David Robinson discusses the treatment and discharge of produced waters, initially offshore.

Water treatment: Hyflux launches new membrane systems Water treatment: Hyflux launches new membrane systems

A new series of compact, pre-engineered seawater and brackish water reverse osmosis systems that incorporate Hyflux's proprietary Kristal® ultrafiltration pre-treatment technology has been introduced to meet challenging water treatment requirements. Filtration+Separation reports on the latest developments at the Singapore-based company.

50th Anniversary: Half a century of developments in filtration – Part 2 50th Anniversary: Half a century of developments in filtration – Part 2

Continuing his short series of articles reviewing the development of filtration equipment and processes over the past 50 years, Ken Sutherland now looks at some key changes in the main lines of industrial and commercial filters and their associated media.

Attachment surface energy effects on nitrification and estrogen removal by biofilms for improved wastewater treatment Attachment surface energy effects on nitrification and estrogen removal by biofilms for improved wastewater treatment

The effects of attachment surface energy on biofilms have been evaluated for wastewater treatment, with biofilms grown on four plastic types at a full-scale wastewater plant. It was found that higher surface energy surfaces may improve nitrification and estrogen removal from wastewater.