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Water Treatment

Sludge thickening and heat-transfer solutions

Alfa Laval The Aldrum drum thickener (photo) provides very gentle sludge handling and recovery. The unit is a range of mechanical sludge thickeners and works on the principle of conveying polyelectrolyte-treated sludge through a slowly rotating drum filter. The sludge…

These pure-water plants are made to order

The modular design of the Septron Line 100-300 (photo) permits the system components to be assembled to meet individual requirements. The units for electrodeionization and reverse osmosis can be combined and positioned individually. Two versions are available. The VAL version…

This UV system is designed to efficiently treat water

Caldon Carbon The C3500 D (photo) utilizes 500-W ultraviolet (UV) lamps in a small footprint to provide overall efficiency and economic savings compared to other low-pressure, high-output (LPHO) systems, says the manufacturer. The high-wattage system relies on a patent-pending design,…

Measure turbidity, suspended solids, and sludge blanket level

The TSS Portable hand-held meter (photo) offers turbidity, suspended solids and sludge-blanket level measurement in one instrument. The TSS is ideal for remote monitoring of rivers and applications involving municipal and industrial wastewater, and drinking water. Additionally, this instrument can…

This membrane bioreactor is a complete packaged system

The Puron Plus membrane bioreactor (MBR) system is a skid-mounted packaged plant that provides customers with a full scope of supply from prescreening and biological treatment through to the final membrane clarification step. The Puron Plus is designed for both…

Use this ultrasonic level transmitter in wastewater applications

The Optisound VU3X Series Continuous Ultrasonic Level transmitter (photo) provides a reliable, repeatable and highly accurate (0.15%) continuous level measurement of liquids. It is capable of liquid level measurement to ranges up to 30 ft. with a 2-wire 4 –…

A new exchange resin for industrial water treatment

Last month, this firm launched a new generation of gel-type, cation-exchange resins for industrial water treatment. Lewatit MonoPlus S 108 and S 108 H have optimized leaching behavior, which is an important quality characteristic regarding the effectiveness and commercial efficiency…

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Achieving Zero Liquid Discharge Status

Water-supply issues are emerging as a national concern with certain sectors coming under increasing scrutiny. This is certainly the case with the ethanol industry. State discharge regulations dictate that plant designs incorporate technological solutions to minimize water use. These designs…

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Graphene improves the performance of water deionization

A research team from the University of South Australia (Adelaide; www.unisa.edu.au) and the East China Normal University (Shanghai; www.ecnu.edu.cn) has developed a capacitive deionization technology (CDI) that uses graphene-like nanoflakes as electrodes, instead of conventionally used activated carbon (AC) materials.…

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Zero-liquid-discharge desalination system offers brine disposal alternative

A desalination system developed by Watervap LLC (Marble Hill, Ga.; www.h2ovap.com) separates saltwater of any concentration into highly purified water and dry solid minerals with high efficiency. The company’s Zero Liquid Discharge (ZLD) process represents a low-cost alternative to brine…