Sludge treatment and disposal at reduced operating costs

Optimal dewatering and digester processes help to save costs and to drive the production of biogas

Sludge treatment and disposal into the environment is increasingly regulated worldwide, driving the wastewater industry to explore new solutions for sludge disposal, incurring significant costs. To reduce such costs, sludge dewatering to reduce its volume ready for drying or incineration is common. Sludge digestion is also used to provide biogas, a rich energy source. Our monitoring solutions support optimal sludge management, from dewatering efficiency to digester control.

How we can help

The Endress+Hauser monitoring portfolio helps plant operators to drive cost efficiencies, enabling close tracking of dewatering rates versus target and of consumption of the polymers required for sludge conditioning. Moreover, it enables accurate monitoring of the sludge digester environment, ensuring the optimization of the digestion and biogas production process.

Advanced Coriolis mass flowmeters for improved dewatering results and reduced polymer consumption
Comprehensive biogas measurement portfolio for wet and dry gases for optimized digester control
Unique portfolio for wet and dry biogas applications for digester process and conditions monitoring

Applications

Accurate sludge conditioner preparation

Polymer solutions for sludge conditioning must be prepared by dilution on site. Polymer solutions are costly, and in order to achieve stable dewatering results and long dewatering cycles, a harmonized polymer concentration is essential.

Our expertise in the field

Our proven portfolio of highly accurate magmeters enables optimal polymer solution concentration and polymer consumption.

Accurate volume flow measurement of both the conditioner and the diluting water are ensured
Install the magmeters with ease to your sludge conditioning system
Extended dewatering cycles with magmeters

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Improved dewatering results

Because the achieved polymer concentration can vary, an optimal ratio between polymer and suspended solids in the sludge is not always guaranteed.

Our expertise in the field

Our Coriolis mass flowmeter measure flow and media density opening the possibility of constant polymer agent dosage to the sludge stream and improves the dewatering results significantly.

Coriolis mass flowmeter reliably measure solution density
Media density measurement allows constant polymer agent dosage

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Optimal sludge concentration

Optimized dewatering results are also dependent upon controlled incoming sludge concentration. Density measurement is an established option guaranteeing stable and good sludge dewatering.

Our expertise in the field

Through combining our highly accurate electromagnetic flowmeter for volume flow with a density sensor you can achieve stable and good sludge dewatering results.

Density measurement using Coriolis in very dark sludge is a good alternative
Achieve efficient and reliable sludge concentration measurements
Stable and optimal sludge dewatering levels guaranteed

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Efficient digester processes

Beneficial bacteria must be protected against critical conditions in the sludge digester process.

Our expertise in the field

Our process controls enable you to guarantee an environment within which digester bacteria may flourish.

Maintained darkness, an absence of oxygen, constant temperature and a nearly neutral pH value
Sufficient retention time and a harmonized load of the process is guaranteed
Accurate biogas production professionally monitored

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Precise flow and methane measurements in wet biogas

Biogas flow rate and methane concentration are critical parameters indicating process disturbances in anaerobic sludge digestion. However, environmental conditions such as large flow dynamics, water-saturated biogas, changing methane concentration and extremely low pressure make measuring these parameters difficult for most devices.

Our expertise in the field

Our unique ultrasonic flow devices offer a solution to the challenge of measuring biogas flow rate and methane concentration.

Track difficult to measure parameters in sludge digestion management
Optimal sludge digestion conditions are ensured

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Foam in the dewatering process

The centrate water from the sludge dewatering process is heavily contaminated with ammonium nitrogen and may only be fed to the wastewater treatment system in dosed quantities. For this purpose, it is buffered in a retention basin. Since the resulting foam of the medium strongly impairs the process, monitoring is indispensable.

Micropilot FMR60 installed in centrate shaft

Our expertise in the field

Our Micropilot FMR60 radar meter continuously measures the level of the centrate water and can detect the formation of foam with the help of the integrated Heartbeat Technology. In addition, the optimum dosing quantity of the defoamer and efficient pump control can be ensured.

Learn more about sludge treatment

Sludge treatment in the wastewater indutry

Centrifuge for dewateringin during the sludge treatment

Benefits

Striking the balance between legislative obligations and cost efficiency is one of the main challenges in the wastewater industry today. Our industry consultants all over the world are familiar with your local requirements and can make specific recommendations on how to improve your processes. Based on their expertise and and our dedicated instrumentation portfolio they achieved remarkable results together with our customers.

20%

cost savings due to less consumption of conditioner chemicals
+14,000

employees worldwide
3 million

Proline Promag electromagnetic flowmeters sold since launch in 1977 in a wide range of applications.

Success stories

Accurate insight despite foam buildup

Automatic feed of defoamer in sludge dewatering thanks to Micropilot FMR60 with Heartbeat Technology
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Accurate sludge conditioning for good dewatering results

Control of sludge conditioner mixing procedure through continuous density and mass measurement improves dewatering results for polymer and lime solutions.
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City of Warren uses magnetic flowmeter in WAS application

City of Warren, MI, finds repeatable and accurate solution for its Waste Activated Sludge (WAS) application with Endress+Hauser's Promag W unrestricted mounting 0xDN electromagnetic flowmeter.
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Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

Browse through our portfolio!

Analysis

Analysis

Water, beverages, dairy products, chemicals or pharmaceuticals have to be analyzed every day. Choose the device best suited to your process needs from our comprehensive product portfolio.
Flowmeter

Flowmeter

Water, natural gas, steam, mineral oil, chemicals are some of the fluids that have to be measured day in, day out. Select the flowmeter best suited to your process needs.
Level

Level

Continuous level measurement and point level detection in liquids and bulk solids
Pressure

Pressure

Powerful instruments for process pressure, differential pressure, level and flow.
Software

Software

Apart from all relevant measuring and system technologies, we also offer appropriate software for all branches of industry that provide to run your operating processes at its full potential.
System products

System products

Applicator
Temperature measurement

Temperature measurement

Thermometers and transmitters for the process industry
Instrumentation services

Instrumentation services

Maximize plant performance, minimize OPEX, increase uptime, all with compliance. Partner with Endress+Hauser instrumentation services.

Other Industries

Chemical: Competitive and safe

Chemical: Competitive and safe

Get the extra project skill and know-how you need to boost your plant's safety and performance
Life Sciences: The pulse of life sciences

Life Sciences: The pulse of life sciences

Trust a reliable partner who helps you achieve operational excellence
Mining, Minerals & Metals: Extracting more from less

Mining, Minerals & Metals: Extracting more from less

In a world of lower grades, skill gaps and excavation challenges – we can help you hit your targets: Reduce your production costs, keep your plant safe and boost compliance and responsibility.

Sludge treatment and disposal at reduced operating costs

Optimal dewatering and digester processes help to save costs and to drive the production of biogas

How we can help