The combination of electrochemical principles and microbial activity is the backbone of a treatment technology designed specifically for ultra-concentrated and challenging industrial wastewater. The Bioelectrochemical Treatment Technology (BETT) developed by Aquacycl (Escondido, Calif.; www.aquacycl.com) involves “microbial fuel-cells” that produce direct…
Lummus Technology (Houston) announced that it has reached an agreement with Siemens Energy to acquire assets from its water solutions portfolio, including intellectual property and copyrights, trade secrets, and research and development properties. The technologies address water and wastewater needs…
Onsite recovery conserves one of the most precious resources — water. A well-engineered, closed-loop recycling system can pay dividends in avoided costs to treat and discharge wastewater In Southern California, few businesses dispute the need for water conservation. In a…
Accurate water-monitoring technologies support short- and long-term sustainability goals in both municipalities and the industrial sector In recent years, São Paulo, Cape Town and other major world cities have come dangerously close to running out of water, and the criticality…
When it comes to water used in boilers, it is important to remove potentially problematic impurities. This offers a potentially huge return on investment, even with the prevention of just one major upset, let alone recurring failures Several decades ago,…
Polyaluminum chloride (PACl) is used as a conditioning agent for reducing the stickiness of waste-activated sludge in wastewater-treatment applications. Presented here is a study comparing two PACl species with different degrees of polymerization The sticky behavior of waste-activated sludge (WAS)…
To ensure that wastewater discharge meets all compliance requirements, plants should adopt a multi-tiered approach, rather than assuming that the downstream treatment facilities can handle all potential contaminant loads Most industrial manufacturing facilities are required to meet strict limits on…
A few months ago, this column addressed the megadrought in the U.S. Southwest and the increasing concerns over water scarcity [ 1]. Since that time, the drought in that region of the U.S. has continued, further impacting communities across the…
Membrane-supported processes can bring many benefits in water-treatment applications where membranes have not traditionally been used Reverse osmosis (RO) is the standard treatment technology for purifying water supplies for potable water applications and many industrial processes. One of four crossflow,…
Currently, enhanced biological phosphorus removal (EBPR) techniques in municipal wastewater-treatment plants (WWTPs) do not work well at temperatures above 25°C, which is common in warm countries. This limitation is expected to extend to more countries with the advent of global…