struvite treatment

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November 2017 Struvite Treatment

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Page 1: Struvite Treatment

November 2017

Struvite Treatment

Page 2: Struvite Treatment

Water Chemicals

Struvite is a challenge in municipal and industrial wastewater treatment plants

November 2017 2

Struvite or MAP (Magnesium, Ammonium and Phosphate) is a phosphate based mineral(NH4MgPO4·6H2O) which can be defined by the following characteristics:

What is struvite?

Sparingly soluble in neutral and alkaline conditions

Readily soluble in acidic conditions

Very hard scale

Sensitive to operational conditions (e.g. pH, conductivity, T°, etc.)

Page 3: Struvite Treatment

Water Chemicals

Struvite formation in pipes and process equipment is reducing plant efficiency

Anaerobic sludge digestion in municipal andindustrial wastewater treatment plantsreleases ammonium, magnesium andphosphate.

The presence of these components canform struvite, which can lead to greatinefficiency within the wastewater treatmentplant due to scale formation on lines andbelts, in centrifuges and pumps, clogging ofsystem pipes and other equipment includingthe anaerobic digester itself.

Scale in pipelines and on process equipment

Problem

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Page 4: Struvite Treatment

Water Chemicals

Struvite is a very hard scale and cannot easily be removed by physical treatment

November 2017

There have been a few physical options to solve this issue:

Replacing affected pipes Using a hydro-jet Using a mechanical grinder

Solution

Many tubes and pipes can be underground and physicaltreatment causes significant downtime and cost

Chemical cleaning prevents and removes struvite effectively with minimal downtime and cost Preventive and curative struvite treatment with: Antiprex® AD 1020 XP Antiprex® MSA

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Page 5: Struvite Treatment

Water Chemicals

Additives with visible performance in preventive and curative struvite treatment

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Antiprex® MSACurative Struvite Treatment

Antiprex® AD 1020 XPPreventive Struvite Treatment

Efficient antiscalant for the prevention of scale deposits including calcium carbonate, calcium sulphate, strontium sulphate and barium sulphate in water systems: Excellent in aqueous media Efficient antiscalant to prevent

struvite precipitation in WWTP*

Antiprex® MSA (Methane Sulphonic Acid)is a strong odorless organic acid with thehighest purity in the industry: Fast acting Effective cleaner Safe to-be handled Readily biodegradable

November 2017

without preventive treatment with Antiprex® AD 1020 XP without curative treatment with Antiprex® MSA

Page 6: Struvite Treatment

Water Chemicals

North AmericaBASF Corporation100 Park AvenueFlorham ParkNJ 07932,USA

Phone: +1(800) 322 3885

South AmericaBASF S.AAv. das Nações Unidas14.171, Morumbi04794 000 São Paulo, Brazil

Phone: +55 11 2039 2366

Europe, Middle East, AfricaBASF SECarl-Bosch-Straße 3867056 LudwigshafenGermany

Phone: +49 621 60 0

Asia PacificBASF South East Asia Pte Ltd33 Tuas Avenue 11,639090 SingaporeSingapore

Phone: +65 6861 6766

Follow us on LinkedIn www.linkedin.com/showcase/basf-water-chemicals-/

Visit our websitewww.watersolutions.basf.com

Email us [email protected]

Get in contact with us for more information on BASF Water Chemicals

Want to know more about our preventive and curative struvite treatments?

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Page 7: Struvite Treatment

Water Chemicals