Prevent, control, and remove struvite and vivianite scale wherever it forms — digesters, pumps, overflow lines, and dewatering systems — before it restricts flow and drives up maintenance cost.
Struvite is magnesium ammonium phosphate and vivianite is an iron phosphate; both crystallize in anaerobic digestion and dewatering, hardening on pipe walls, pump volutes, and heat exchangers until flow is restricted. Jenfitch chemistry modifies the structure before crystals form and dissolves existing deposits in digesters, overflow lines, and dewatering systems without aggressive mechanical cleaning.
Approved, certified & independently validated
EPA FIFRA
USDA Organic
NSF/ANSIThe Problem
Struvite is magnesium ammonium phosphate — a hard, crystalline scale that forms when phosphate, ammonia, and magnesium concentrate in anaerobic digestion and dewatering. It builds on pipe walls, pump volutes, and heat-exchanger surfaces, narrowing bores and fouling equipment.
Vivianite is an iron phosphate that precipitates where phosphate meets iron in the same anaerobic environments. Like struvite, it deposits on the surfaces solids move across — digesters, recycle lines, and dewatering gear — and hardens into a flow-restricting scale.
Using our advanced technology, we prevent the formation of struvite or vivianite by modifying its chemical structure before it can crystallize and create operational restrictions.
Jenfitch has developed technology that removes struvite and vivianite wherever it forms in your system. Whether it is building in your digester, the overflow line, or the dewatering system, we can effectively solve the problem.
Before
After
The Problem, Solved
Struvite (magnesium ammonium phosphate) and vivianite build hard mineral deposits that narrow pipes, foul pumps, and cut throughput in digesters and dewatering equipment. Left untreated, it means emergency shutdowns, jetting, and lost capacity.
Jenfitch chemistry targets the deposit at the molecular level — preventing new scale and dissolving what has already formed — restoring full flow without aggressive mechanical cleaning.
Talk to us about your systemWhy It Happens
Anaerobic digestion and the dewatering that follows release phosphate and ammonia into solution and concentrate metals such as magnesium and iron. As these ions meet — and as pressure drops and turbulence rises at pumps, valves, and elbows — the dissolved species crystallize onto surfaces as struvite or vivianite. The reaction feeds on itself: once a nucleus forms, scale grows steadily, narrowing the flow path and increasing turbulence, which drives still more deposition.
Scale on digester walls, mixers, and heat exchangers cuts efficiency and capacity; scale in overflow and recycle lines restricts flow and causes backups. Left untreated it forces emergency shutdowns, high-pressure jetting, chemical descaling, and premature equipment replacement — all unplanned maintenance and lost throughput.
How It Works
We analyze your water chemistry and pinpoint where and why struvite or vivianite is forming in your process.
A targeted Jenfitch program modifies the chemical structure to prevent crystallization and dissolve existing deposits.
Ongoing dosing keeps digesters, overflow lines, and dewatering systems clear — protecting throughput and equipment.
Where It Forms
Scale on walls, mixers, and heat exchangers reduces efficiency and capacity.
Narrowed lines and elbows restrict flow and cause backups.
Deposits on volutes and seats foul pumps and valves, driving vibration, wear, and failures.
Scale on centrifuges, presses, and their piping cuts capture and drives up maintenance downtime.
The Benefit
Questions
Struvite is magnesium ammonium phosphate; vivianite is an iron phosphate. Both form in the anaerobic digestion and dewatering stages of a wastewater plant when phosphate and ammonia combine with metals, and both deposit as hard, flow-restricting scale. Struvite crystallizes where phosphate, ammonia, and magnesium concentrate, building on pipe walls, pump volutes, and heat-exchanger surfaces. Vivianite precipitates where phosphate meets iron, depositing on digesters, recycle lines, and dewatering gear.
Anaerobic digestion and dewatering release phosphate and ammonia and concentrate magnesium and iron. Where those ions meet — especially at pumps, valves, and elbows where pressure drops and turbulence rises — they crystallize onto surfaces and the scale grows on itself.
Yes. The program both prevents new formation by modifying the chemical structure before it can crystallize and dissolves existing deposits, restoring full flow without aggressive mechanical cleaning, wherever it forms, from the digester to the dewatering system. That covers overflow lines, pumps, and dewatering gear as well, so scale that has already narrowed a bore can be cleared while the same chemistry keeps new crystals from setting up again.
After assessing where and why the scale is forming and treating the existing deposits, ongoing dosing keeps digesters, overflow lines, pumps, and dewatering systems clear, protecting throughput and equipment over the long term. Prevention works by modifying the chemical structure before struvite or vivianite can crystallize, so the maintenance dose addresses the conditions that created the deposit rather than waiting for the next restriction to appear.
Where to next
Need reliable treatment for an industrial facility, municipality, agricultural operation, or food process? We can help with quotes, safety data sheets, technical questions, and project scoping.