struvite treatment
TRANSCRIPT
November 2017
Struvite Treatment
Water Chemicals
Struvite is a challenge in municipal and industrial wastewater treatment plants
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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.)
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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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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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
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
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Want to know more about our preventive and curative struvite treatments?
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Water Chemicals