Water Treatment
Membrane bioreactor technology improves treatment of high-organic-content water
A next-generation, carbon-enhanced membrane-bioreactor (MBR) system improves treatment of industrial wastewater with high organic content and containing compounds that resist microbial breakdown. The system allows economic reuse of wastewater or discharge to meet stringent environmental standards. The new MBR, dubbed…
Ask the Experts: Membranes for water reuse
Question: What is driving the trend toward increased water reuse and how is membrane technology addressing this? Furthermore, what does the future hold for water reuse? Answer: Meeting water demands and ensuring a plentiful supply of water for future generations…
Non-Chemical Water Treatment
Mechanical processes can offer an environmentally friendly and safer option to chemical water treatment Non-chemical methods for conditioning water for use in cooling towers and boilers have been investigated, marketed and installed for over 100 years. In light of the…
Ask the Experts: Water Reuse
Question: Stricter wastewater regulatory environments and water availability continue to drive water reuse and recycle in the chemical and petrochemical industries globally. What should companies consider when evaluating water reuse as part of the manufacturing and wastewater process? Answer: While…
Purifying Coke-Cooling Wastewater
The delayed coking process is a fundamental part of the petroleum refining and petrochemical industries, and is among the main technical means for transforming inexpensive heavy oil into more valuable, light-oil products. Delayed coking units are common in petroleum refineries,…
Focus on Water Treatment
Last month, a total of 17,722 visitors and 995 exhibitors attended WEFTEC.09, the Water Environment Federation’s (WEF) 82nd annual technical exhibition and conference held in Orlando, Fla. Particularly in this time of economic concerns, the strong showing reinforces the importance…
Strategies for Water Reuse
In more and more locations, the availability of fresh water resources is limited and water reuse is becoming increasingly important. For many industrial applications, the availability of water is essentially a “license to operate”. A large component of the water…
Keeping Cooling Water Clean
Cooling water systems that rely on cooling towers are a critical component at chemical process industries (CPI) facilities. However, during operation, these open recirculating systems concentrate the contaminants in the makeup water, and as a result, scale formation and biological…
Extracting drinking water from humidity
An energy-autonomous process for capturing air humidity for drinking water has been developed by scientists at the Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB; Stuttgart; www.fraunhofer.de) and Logos-Innovationen GmbH (Bodnegg, both Germany; www.logos-innovationen.com). The concept is suitable for supplying…
Water reuse and recycling: Taking the Plunge
Globally, water reuse and recycling are not uncommon — with parts of Australia, South Africa and the Middle East rather heartily embracing the practice. Even in Europe, it is estimated that 75 to 80% of water is reused. However, because…