Mobile Navigation

Water Treatment

Member Exclusive

Water Takes the Stage at Achema 2015

The emphasis on water management at Achema 2015 indicates the critical nature of water to all industry sectors as the CPI expand and evolve In June, chemical engineers from around the world convened in Frankfurt am Main, Germany for Achema…

Member Exclusive

Wastewater Sludge Centrifugation Before Drying

The decanter centrifuge is an important piece of equipment for sludge volume reduction prior to thermal drying. Understanding centrifuge operation helps manage drying energy costs Consecutive mechanical dewatering and thermal drying are integral parts of sludge management, lowering the sludge…

Combine wastewater treatment with biofuel production

Algae Systems LLC (Daphne, Ala.; www.algaesystems.com) has inaugurated a demonstration plant that integrates municipal wastewater treatment with the cultivation of biofuel-producing algae. Pretreated and disinfected municipal wastewater is passed to Algae Systems offshore floating-bag photobioreactors (PBRs), which are located in…

Weftec 2014 Show Preview

The Water Environment Federation (Alexandria, Va.; www.wef.org) is holding its annual Weftec exhibition and conference from Sept. 27–Oct. 1, 2014 at the Ernest N. Morial Convention Center in New Orleans, La. The event will feature numerous technical sessions and committee…

Challenges of Drying Sticky Wastewater Sludge

Operators and engineers in the chemical process industries (CPI) who are responsible for the daily operations associated with sludge dewatering and drying equipment are undoubtedly aware that wastewater-sludge drying is not an easy task. A large number of the problems…

Member Exclusive

Modern Water-Treatment Challenges

Water and wastewater treatment are extremely important at liquefied natural gas (LNG) facilities and other industries that are blossoming due to the shale-gas boom. Engineering concerns are similar to those of other industrial water-treatment and power-generation systems, but with the…

Member Exclusive

Cooling Towers: Managing Tighter Water-Discharge Regulations

Historically, many large industrial facilities, including power plants, have relied on once-through cooling, in which the entire cooling water volume flows through the plant heat exchangers and then is discharged to the original source. However, the U.S. Environmental Protection Agency…

A Primer on Reverse Osmosis Technology

Water scarcity is one of the most serious global challenges of our time. Desalination and water reuse are effective and reliable means to provide new water resources. Among the many methods available to treat water, reverse osmosis (RO) has widely…

A new decanter series for sludge dewatering

With the C-XI decanter series, sewage treatment plants can achieve higher dry-substance values, saving money on disposal and further processing, says the company. The new decanters are said to offer optimum conveying of solids, greater purity of the liquid phase,…

IFAT 2014 Show Preview

The world’s largest environmental technology trade show, IFAT (www.ifat.de), takes place in Munich May 5–9. A record of nearly 3,000 companies from 50 countries are presenting innovations and services in water, sewage, waste and raw materials management, covering some 230,000…