Markland Specialty Engineering Ltd.

305 Armstrong Avenue, Unit 9
Georgetown, ON
CA, L7G 4X6

Portable & Automatic Sludge Blanket Level Detectors - Suspended Solids Density Meters - Automatic Duckbill Sampling Systems.

Designing & manufacturing process control instrumentation since 1967.

Municipal applications: primary, secondary, return-activated (RAS) & backwash sludge.

Industrial applications: incoming process water, process slurries & wastewater.  

SLUDGE BLANKET LEVEL DETECTORS: SLUDGE GUN®:

Spot-check interface levels in lagoons, settlement tanks & ponds. AUTOMATIC SLUDGE BLANKET LEVEL DETECTOR: Maintain preferred sludge depth. Run desludge pumps only when necessary. Prevent carryover. Avoid pumping large volumes of water/thin sludge. Optimize sludge density before subsequent processing. For clarifiers, lamellas, dissolved air flotation thickeners (DAFs), decanting tanks & sequencing batch reactors (SBRs). Well-suited for obstructed/constricted areas.  

SUSPENDED SOLIDS DENSITY METER:

Monitor process slurry density, even concentrations too thick for optical methods. Optimize flocculant dosing. Automate desludge pumps. Avoid pumping large volumes of water/thin sludge. Optimize density before further processing. Non-radioactive ultrasonic sensor. For open top tanks, pipelines, SBRs & sand/membrane filters.  

AUTOMATIC DUCKBILL SAMPLING SYSTEM:

Automate composite sampling, even in freezing temperatures. Compressed air moves samples  24m+/79ft+ vertically  30m+/98ft+ horizontally. Explosion-proof; no pumps. Facilitate regulatory compliance monitoring. For tanks, sewers, open channels & sumps.   Markland offers, at no-charge, a complete engineering report of our instrument\'s response to customers\' material. Products meet the needs of unique applications. Factory-direct support and quick delivery.

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Instrumentation, Systems & Automation

Suspended solids concentration meter

Suspended solids concentration meter

Measure the concentration of sludge’s or slurries without being affected by color using the Markland Model 502 Suspended Solids Meter. The meter is used in drinking water plants to measure the concentration of the backwash sludge from sand or membrane filters. It’s used to measure primary, secondary and return activated sludge’s, industrial sludge’s and process slurries.  It measures slurries that are too thick for optical methods. Ultrasound is inherently safe so it requires no approvals. Markland offers free testing of your samples.

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Explosion-proof wastewater sampler

In existence for 40 years, the Duckbill Sampling System is unique among samplers. The simple and reliable sampler has no pumps or scoops but uses compressed air to push the sample out at high velocities. Sample lifts of 80 or more are possible with long horizontal runs. The system is explosion-proof and the compressed air dries the sampling lines to prevent freezing.

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Sludge depth meter

Sludge depth meter

A sludge depth meter is a key instrument for controlling the sludge level in dissolved air flotation tanks, SBRs, inclined plate clarifiers, tanks and clarifiers. The Model 602 Sludge Depth Meter quickly automates sludge level detection. Corrosion is not a problem with its PVC probe. Analog, digital and relay outputs are available.

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Explosion-proof wastewater sampler

Explosion-proof wastewater sampler

In existence for 40 years now the Duckbill Sampling System is unique among samplers. The simple and reliable sampler has no pumps or scoops but uses compressed air to push the sample out at high velocities. Sample lifts of 80 or more are possible with long horizontal runs. The system is explosion-proof and the compressed air dries the sampling lines to prevent freezing.

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