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Water Treatment

A new spin on ultrasonic algae control in wastewater-treatment applications

Ultrasound treatment is a non-chemical method to control algae using specific sound frequencies emitted through water to cause internal damage to polluting algae cells. Most previous work in the area of ultrasonic algae control has focused on very loud emitted…

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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…

Recently Published Books for the CPI: November 2021

The following is a list of recently published books with relevance to various parts of the chemical process industries (CPI) Biodiesel Technology and Applications. Edited by Inamuddin, Mohd Imran Ahamed, Rajender Boddula and Mashallah Rezakazemi, Wiley & Sons Publishing Ltd.,…

AI-supported polymer-dosage system slashes operating costs

Last month, Andritz AG (Graz, Austria; www.andritz.com) introduced its next-generation of Metris addIQ RheoScan, the world’s first patented, optical-measurement system for automatic polymer dosage in belt presses and gravity belt tables. The new generation uses artificial intelligence (AI) to optimize…

A Holistic Approach to Water Management

Advanced equipment, new chemistries and digital technologies help manage water use to provide efficiency, sustainability and savings Water, the “common currency” across all chemical process industries (CPI) sectors, is an integral part of every process — from upstream, where it…

Focus on Wastewater Heating

Quiz questions and answers provided by Pick Heaters Inc. Create your own user feedback survey

Recently Published Books for the CPI: September 2021

Here are recently published books with relevance to the chemical process industries (CPI). September 2021.  Engineering of Power Plant and Industrial Cooling Water Systems. By Charles F. Bowman and Seth N. Bowman, CRC Press, 2021, 174 pages, $71.96. 2021 Guide…

Sequencing Batch Reactors for Water Treatment

Sequencing batch reactors (SBRs) are a variation on the activated sludge process in wastewater treatment. This article provides an overview of SBRs, including their history, current use and future outlook Sequencing batch reactors (SBRs) are a type of wastewater treatment…

Backwash Tuning for Reliable Sand Filtration

This practical guide provides information on proven backwash-tuning techniques that will improve the reliability and robustness of sand filters in water treatment applications Water is a fundamental part of virtually all plants in the chemical process industries (CPI). Examples of…

Combine three steps in one unit with this wastewater-treatment process

A cyclic activated-sludge (AS) process, trademarked te-cyc, combines biological treatment and solids settlement in a single treatment step, thereby significantly reducing the footprint compared to a conventional AS plant, which requires three separate processes — primary settlement tanks, aeration tanks…