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Water Treatment

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Wastewater Treatment: Three Steps to Achieving Discharge Compliance

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…

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New Membrane Applications for Traditional Water-Treatment Processes

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,…

Water scarcity worsening

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…

Extending the operating temperature of biological phosphorus removal

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…

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Scrolling or Pushing? Choosing the Right Type of Filtration Centrifuge

Understanding the working principles of scrolling and pushing centrifuges can help when deciding which type to use. Feed properties and other factors also play a role When looking for a proven solution for mechanical dewatering, you will most likely come…

Samsung Engineering acquires a stake in DNP Water

Samsung Engineering Co., Ltd.(Seoul, South Korea) has acquired a 24% stake in the Vietnamese water-treatment company DNP (Dong Nai Plastic) Water for about KRW52.7 billion ($41 million). The signing ceremony, was held at the Intercontinental Landmark Hotel in Hanoi, Vietnam,…

New Membranes Support Sustainability Trends

Advances in membrane technologies allow processors to delve into gas- and water-separation applications more effectively and efficiently Conventional membranes have a reputation for being “finicky” and “high maintenance” because they don’t operate well under high pressures or temperatures, are subject…

CPI Booklist for March 2022

March 2022: The following is a list of recently published books that may be of interest to professionals in the chemical process industries (CPI) Overpressure Protection in the Process Industry: A Critical View. By Marc Hellemans, Elsevier Press, 2022, 396…

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Zero-liquid-discharge project to recover products from brine

HRS Heat Exchangers Ltd. (Watford, U.K.; www.hrs-heatexchangers.com) was recently awarded an order for the design, manufacture and installation of a mechanical vapor recompression (MVR) evaporation system for LIFE Desirows (lifedesirows.eu) — a three-year, €1.6-million project funded under the E.U.’s LIFE19…