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Water Treatment

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…

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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…

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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…

Software helps turn sewage into profit

The new software package, Ocean, can contribute to turning a sewage treatment plant from a disposal facility into an opportunity to generate electricity, recover resources and recycle water. For example, Ocean can identify energy-saving solutions and change wastewater treatment from…

The launch of the first mobile membrane degasser

Remox — the latest addition to this company’s Aquamove fleet of mobile water treatment solutions — is a membrane degasser that removes carbon dioxide and oxygen from water. The first membrane degasser available on the rental market, Remox is housed…

Biological Wastewater Treatment: Selecting the Process

Chemical, pharmaceutical and related industries produce large amounts of wastewater in their production and cleaning processes. The wastewater characteristics are often diverse, and may include minimally biodegradable or toxic substances, or both. To protect the environment, these wastewaters typically must…