Case studies
Every result we hold that can be stated without overclaiming, in one place, measured at working plants treating with the formulations SediLogic supplies. Each record says what the figure measures and what was never reported alongside it — no untreated control, no method, no location. Filter by the duty it was measured in, or by what was counted.
01The field record
Only the volatile organic fraction of a sludge responds to any of this. Grit, sand, silt, mineral precipitates and plastics remain at any dose, in every record below.
SediLogic sizes wastewater lagoons and holds a written dose table for nothing else — the other duties below are evidence, not an offer. A result outside the 33 to 66 per cent of the volatile fraction an operator should plan for carries a mark saying so.
44 results of 44
Wastewater lagoons
Municipal24 weeks
of accumulated solids digested
Just over five feet of accumulated solids in the primary aerated lagoon, assessed at 2,365 dry tons. The plant wanted a route that did not involve dredging.
Wastewater lagoons
MunicipalFive months, May to October
reduction in solids volume overall
Accumulated solids across two lagoon cells, against a specification calling for a 50 per cent reduction. The treatment window was bounded by water temperature, which has to stay above roughly 55°F for the organisms to work at all.
Wastewater lagoons
Municipal3 months
of organic solids digested
Decades of loading had taken the lagoon to a measured 20.5 per cent solids, with a dredging quotation in hand and no budget line to meet it.
Wastewater lagoons
Industrial12 months
reduction in accumulated solids
Accumulated solids had cut hydraulic retention time to 13 days, capping what the facility could put through the plant and putting effluent quality within sight of a limit.
Wastewater lagoons
Municipal30 days
effluent suspended solids, from a starting figure that was never recorded
A forty-year-old lagoon carrying heavy accumulated solids and an effluent suspended-solids figure the resort could not hold.
Wastewater lagoons
Agricultural4 weeks
reduction in crust thickness
A floating crust around a foot and a half thick, stiff enough to interfere with pumping the lagoon down for land application.
Wastewater lagoons
Industrial12 months
reduction in sludge volume over twelve months
A lagoon system less than two years old, taking 3,400 lb of BOD a day, already accumulating solids faster than the design allowed for.
Wastewater lagoons
Industrial90 days
solids reduction in the treated section
Solids had built to near the surface across a nine-foot section, short-circuiting flow through the lagoon and putting a dredging quotation on the table.
Wastewater lagoons
IndustrialJune to September
surface coverage by the grease cap, in three weeks
A fat, oil and grease cap covering the whole lagoon surface, cutting oxygen transfer into the water beneath it and standing between the plant and its irrigation discharge.
Wastewater lagoons
IndustrialSummer through September
reduction in total Kjeldahl nitrogen against an untreated lagoon
Nitrogen in the lagoons was high enough to block land application, and a grease layer was suspected of standing in the way of nitrification.
Nitrifying organisms do not survive drying, so nothing in SediLogic's dry range can be expected to reproduce this. A nitrogen or ammonia permit is not a duty the launch products address, and this record is published as part of the field record rather than as an offer.
Grease traps
IndustrialOngoing, first results in weeks
reduction in fats, oils and grease
Three restaurant kitchens sharing interceptors that were filling faster than the pump-out schedule could keep up with, with grease backing up into sinks between visits.
Collection systems
Municipal30 days
reduction in fats, oils and grease
Ten thousand dollars a month going on grease removal from force mains and lift stations, on top of a chemical dosing programme.
Wastewater lagoons
Municipal60 days
reduction in sludge depth in the treated area
Sludge occupying eight to ten feet of an eleven-foot lagoon, leaving nine per cent of the design capacity available for treatment, against a $600,000 dredging quotation.
Wastewater lagoons
Municipal1 year
reduction across the three lagoons in one year
Three lagoons at one works, all carrying enough accumulated material to put dredging on the capital plan.
Wastewater lagoons
IndustrialApril to October
average reduction in sludge depth
Decades of accumulation had left half a metre of freeboard on a four-metre basin, with three and a half metres of it solids, and the retention time gone with it.
Wastewater lagoons
Agricultural4 months
reduction in total suspended solids
A lagoon loaded well past what it was built for, carrying a foam layer across most of the surface and blocking the irrigation draw.
Wastewater lagoons
Agricultural12 weeks
reduction in organic nitrogen dry solids
Dry solids and nutrient load in stored manure, studied under a federal grant rather than a sales programme.
Aeration basins
IndustrialOne month from a January application
lower effluent BOD within a month of dosing
A million gallons a day of mill effluent, and a BOD figure that climbed every winter as the water cooled and biological activity fell away with it.
Aeration basins
IndustrialImprovement inside 4 months
reported annual saving once settling recovered
Nine months of filamentous growth had taken the settled-volume test above 980 ml/L, so the clarifier could not hold solids and the plant was paying to haul them away.
Aeration basins
Municipal1 year
reduction in secondary sludge production
A food-processing load arriving at a municipal works, bringing enough grease with it to drive filamentous growth and cost the plant its settling.
Aeration basins
Industrial60 days
to clear the foam blanket
A stable foam blanket on the aeration basin, fed by grease in the incoming load and unaffected by the usual mechanical answers.
Industrial pre-treatment
IndustrialWeeks
ammonia removal
A nitrifying population that would not establish itself, leaving ammonia removal at less than a third of what the permit assumed.
Nitrifying organisms do not survive drying. No product in SediLogic's dry range addresses an ammonia or total-nitrogen permit, and this record is published as part of the field record rather than as an offer.
Grease traps
Industrial2 years
fewer blockage incidents in the second year
Grease building in kitchen and deli drain lines fast enough to generate a steady run of blockages and emergency call-outs.
Grease traps
IndustrialNot published
less oil accumulation in the trap
Oil accumulating in the trap faster than the cleaning contract allowed for, and taking a long time to clear at each visit.
Industrial pre-treatment
IndustrialSustained over 4 years
a day of loss reported as avoided
Floc that would not form reliably in the basin, with the compliance consequence of losing it measured in the hundreds of thousands of dollars a day.
Collection systems
MunicipalOngoing
between scheduled clean-outs
A line that needed clearing every two months to stay ahead of grease accumulation.
Industrial pre-treatment
Industrial90 days
reduction in extractable petroleum hydrocarbons
Oily sludge holding extractable petroleum hydrocarbons at a concentration that made disposal the only route available.
Industrial pre-treatment
IndustrialNot published
reported as avoided by recovering nitrification
A nitrifying population lost from the plant, and an ammonia figure heading for a limit while it re-established.
Nitrifying organisms do not survive drying. No product in SediLogic's dry range addresses an ammonia or total-nitrogen permit, and this record is published as part of the field record rather than as an offer.
Anaerobic digesters
IndustrialNot published
increase in biogas yield
A digester returning less gas than the organic load going into it suggested it should.
Anaerobic digesters
IndustrialNot published
more biogas
High-strength waste going into a digester that was converting less of it to gas than the plant's generating set could use.
Industrial pre-treatment
IndustrialNot published
reported saving on grease cleaning
Grease accumulating through the media of a buried reactor, where cleaning means confined-space entry.
Industrial pre-treatment
IndustrialNot published
a day reported as recovered
Phenol in the feed and filamentous growth in the basin, together costing the plant its settling.
Aeration basins
MunicipalNot published
reduction in effluent ammonia
Effluent ammonia above what the plant's permit allowed.
Nitrifying organisms do not survive drying. No product in SediLogic's dry range addresses an ammonia or total-nitrogen permit, and this record is published as part of the field record rather than as an offer.
Industrial pre-treatment
Industrial1 year
reported annual saving on carbon dosing
Organic load being carried by powdered activated carbon, at a cost that rose with every increase in the feed.
Wastewater lagoons
Industrial2 months
reduction in oil and grease
A lagoon carrying a heavy oil and grease load on top of an organic load, with the surface closed over.
Wastewater lagoons
Agricultural45 days
less pumping time
Three to four feet of crust across the lagoon, and a pump-out that took two full days because of it.
Wastewater lagoons
Agricultural6 weeks
reduction in total suspended solids
Suspended solids and phosphorus in a manure lagoon at concentrations that constrained where the contents could go.
Industrial pre-treatment
Industrial90 days
reduction in effluent BOD
A slaughterhouse effluent plant removing barely half the BOD arriving at it, with grease implicated in the shortfall.
Aeration basins
Industrial14 days
of accumulated tank solids digested in fourteen days
Accumulated solids standing more than a metre deep in the aeration tank of a distillery effluent plant.
Industrial pre-treatment
Industrial26 hours
ammonia, in twenty-six hours
Leachate arriving at the treatment plant with an ammonia concentration in the high hundreds of milligrams per litre.
Nitrifying organisms do not survive drying. No product in SediLogic's dry range addresses an ammonia or total-nitrogen permit, and this record is published as part of the field record rather than as an offer.
Industrial pre-treatment
IndustrialNot published
ammonia, from six to eight
Ammonia running at six to eight milligrams per litre after the plant's nitrifying population failed.
Nitrifying organisms do not survive drying. No product in SediLogic's dry range addresses an ammonia or total-nitrogen permit, and this record is published as part of the field record rather than as an offer.
Grease traps
IndustrialNot published
reduction in BOD and suspended solids in the trap
A trap whose contents were strong enough that every pump-out was charged as high-strength waste.
Grease traps
Industrial14 days
to clear the hardened grease and restore flow
A kitchen waste line hardening with grease and blocking two or three times a week, with pipe replacement the quoted alternative.
Industrial pre-treatment
MunicipalNot published
reduction in total petroleum hydrocarbons
Total petroleum hydrocarbons in a separator at more than two hundred times the discharge limit, with pumping the only route to compliance.
Your lagoon next
Every record above is a different plant, a different loading and a different sludge. What they are good for is setting an expectation of the range. What decides your result is how much of your own accumulation is organic and treatable in the first place, and whether the dose is sized against the lagoon in front of us rather than read off a figure on this page.
Sedivore Spike carries down through depth to the benthic layer, Sedivore Puck spreads a calculated dose across the bed, and SediLogic Maintain handles load in the water column. Tell us the dimensions and we will size which of them your lagoon needs, and how much.
