Markland's Sludge Gun®: Target Your Sludge!
20 February 2015, News release from Markland Specialty Engineering Ltd.
The Sludge Gun®, from Markland Specialty Engineering Ltd., measures silt/sludge interface levels in clarifiers, settlement tanks, sedimentation basins, lagoons and ponds, and helps provide valuable sludge level profiles.
This handheld detector allows users to monitor sludge bed depth for regulatory compliance and prevention of carryover, and to eliminate unnecessary pumping/dredging. It uses high-intensity infrared light to detect sludge densities ranging from light flocs to thick blankets.
A trigger switch is located on the handle of the Sludge Gun®. When this switch is depressed, it causes a beam of high-intensity infrared light to shine across a gap in the probe to a matching phototransistor sensor. When the LED beam encounters suspended particles in the probe gap, some of its energy is absorbed, causing the phototransistor to activate a rear-facing speaker on the butt of the gun.
As the percentage of suspended solids increases, the audible tone changes in both pitch and volume. The operator lowers the probe into the tank or pond and, by slowly moving it up and down, observes the numbered depth markers on the cable to establish the location of both the true settled bed as well as the overlying unsettled cloud layer. A thumb-adjustable control allows the user to fine-tune the instrument's sensitivity. In addition, features are uniquely suited for specific applications. For example, high-power Model 10-HP excels at finding the level of sludge in murky lagoons; Model 10-LP detects clear liquid surfaces.
The spring-loaded trigger turns off the gun, preventing accidental drain on the battery. The cable is stored on a spool at the front of the gun. Battery life (standard AA) averages one year with normal use.
The Sludge Gun® is compact, weatherproof and convenient to use from boats and narrow catwalks. No calibration is required.
For operators at Utilities and industrial water and wastewater treatment plants, The Sludge Gun® is a welcome addition to their toolbox.
For further information please email Markland Specialty Engineering Ltd.