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Product Basics

Screw Conveyors for Raw Screenings – Q & A

Screw Conveyors for Raw Screenings – Q & A

As a Product Manager at JMS, one of my jobs is to work with Owners and Engineers on a day to day basis answering their questions.  I recently had a conversation with an Engineer regarding recommendations for conveyance of compacted
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Coagulant and Flocculant Make-down Rules of Thumb

Coagulant and Flocculant Make-down Rules of Thumb

Use of coagulants and flocculants in the water and wastewater treatment process is one of the keys to a successful outcome. Choice of the correct polymers for the process and the appropriate dosage rates is important. Also, of major importance
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Screw Conveyor Horsepower

Screw Conveyor Horsepower

Once it has been determined that a Screw Conveyor will best fit your application, and the type of screw conveyor you will use (shafted or shaftless), a calculation will be completed to specify the horsepower that will be needed to
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Grit Classifier Maintenance

Grit Classifier Maintenance

The Grit Classifier is a key piece of equipment for most wastewater treatment plants.  This equipment is located in the Headworks area of the facility. It receives a grit slurry from the process and through separation and removal action removes
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When to use a Vertical Screw Conveyor

When to use a Vertical Screw Conveyor

Screw conveyors are compact in design and easily adapt to congested locations for conveyance of materials in a horizontal, inclined, or vertical screw conveyor. Inclined screw conveyors are widely used, however they are not recommended for inclines over 25 degrees.
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Should Scum Pipes Rotate in Both Directions?

Should Scum Pipes Rotate in Both Directions?

Scum pipes represent one of the simplest and most economical ways to remove scum and other floating materials from the water surface in a municipal water or wastewater treatment plant. They typically operate intermittently from day to day, either manually
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DO, BOD and COD: What is the Difference?

DO, BOD and COD: What is the Difference?

In my role working with the JMS Eco-AIR (Low Profile Cascade Aerator) at wastewater treatment plants, I have the opportunity to speak with operators about the quality of processed wastewater leaving their plants. Often we discuss the Dissolved Oxygen content
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Paddle Wheel Flocculator Maintenance

Paddle Wheel Flocculator Maintenance

You just don’t think about flocculator maintenance too often as flocculators are proven pieces of equipment and seem to run day in and day out for years, even decades.  Flocculators are, however, rotating equipment with moving parts both above and
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Screw Conveyor Basics: Screw Conveyor Fill Rate

Screw Conveyor Basics: Screw Conveyor Fill Rate

Screw conveyors are a standard means of conveyance in Water and Waste Water Treatment (W&WWT) plant applications. They are completely enclosed, have few moving parts, and have a relatively small cross-sectional area as opposed to belt conveyors which are typically
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Scum Pipe Intermediate Supports and When to do use them

Scum Pipe Intermediate Supports and When to do use them

A rotating scum pipe system typically extends the entire width of a basin. It is typically located at the far end of the basin, with flow towards the scum pipe, and supported at each end with an end bearing assembly
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