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Featured Articles

Thermal desorption technology gains ground as remediation solution

Indirect heating of feed material in oxygen-deficient environment separates organic constituents from waste material
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Indirect thermal desorption can efficiently remediate soils and waters, and recover otherwise hazardous hydrocarbons — without venting harmful volatile organic compounds (VOCs) into the atmosphere.
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A steel storage tank’s coating is only as good as its application

In factory or field, preparation, application and curing governed by quality control tests
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The most carefully considered decision made when buying a steel storage tank should be the one that determines the quality of its coating. Other factors — including size, capacity, cost, turnaround time and ease of construction — are impacted by the coating decision.
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PVDF delivers answers in challenging membranes market

Use grows in hollow fiber membranes for process-industry water treatment
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Since its introduction in 1964 by Pennwalt Corp., PVDF (for Polyvinylidene Fluoride) has been well known as a material of construction for chemical-handling applications.
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Cleaning-in-Place of powder-handling equipment in food, beverage and dairy plants

Dry or wet, nozzle selection, temperature, pressure and drying method among key decisions to be made
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It goes without saying that a modern food or beverage plant handles lots of powders, either as raw ingredients or finished products. To handle all this stuff, plants are equipped with powder transport and conveying systems as well as powder silos, feeders, blenders, de-baggers and filling machines.
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Non-contact radar level meter improves reactor vessel measurement

Chemical manufacturer reduces cycle time and limits chemical vapor exposure
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A North Carolina-based specialty chemical manufacturer, a major producer of insect repellent, was looking for a better way to measure the liquid level in its glass-lined agitated reactor.
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What we've got here is 'a failure to discharge!'

A test that tells you when you need to tackle a powder-flow challenge
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Powder products — such as flavorings, flours, pharmaceuticals and nutraceuticals — are part of a broader group of materials called “bulk solids” that can range from micron- to millimeter-sized particles.
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Benefits follow use of larger-series pneumatic rack-and-pinion actuators

Bob Donnelly
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The extended size range of today’s pneumatic rack-and-pinion valve actuators that can now automate up to 32-inch butterfly valves, and up to 14-inch ball valves, offers an advantageous alternative to the large-size, scotch-yoke actuator mechanism that has been popular in industry for quite some time.
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Solids level detection – what method is best?

Joe Lewis
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Questions have crossed my desk recently specific to solids level detection applications. People ask why I recommend rotary-paddle technology so often. The answer is simple, once you understand how each available technology fits into the application map.
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Should we repair or replace this boiler?

Before deciding, consider any demand load changes, and what type boiler is best
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It goes without saying that steam plays a vital role in chemical and other type processing plants, and that having a reliable, cost-effective and safe boiler is essential to good operations. As a facility ages, it eventually gets to the point where it’s time to choose between upgrading the current boiler or getting a new one.
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Potatoes and other foods chilled rapidly without refrigeration

Cooling towers ensure reliability of vacuum/retort cooking system that chills tons of ingredients per hour
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In the potato salad-making business, one practical way to profitably maintain and grow regional distribution is to make a whole lot of product — literally thousands of pounds per hour.
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