Dry water-soluble pouch, cold-weather blend
Sedivore Polar
SediLogic Maintain's duty, in a blend built for cold water. A soluble pouch that disperses through the water column and goes on digesting organic material at temperatures where a standard blend has effectively stopped — for a lagoon whose incoming load does not slow down simply because the water has.
01Why this format
Organic load in a lagoon running cold
Biological activity falls away as water cools, and most blends in this category are built on organisms that do very little below about 50°F. That is the ordinary reason a winter programme is a wasted one. This blend is specified around strains selected for cold conditions instead, and those strains are uncommon in the category for a commercial reason rather than a technical one: they ferment at lower yields, so they cost more per pound to make than the warm-water workhorses a stock blend is built from. It is the narrower of the two pouches, deliberately — where the water is not genuinely cold, SediLogic Maintain does the same work for less, and where the target is a settled blanket a sinking solid is the right vehicle at any temperature.
It works in the water column, and it suits an adequately mixed lagoon working through cold water.
02Specifications
What is published, and what is not.
Each figure below is taken from a product document. Where the documents publish no value, the row says so rather than carrying an estimate: a number that later moves is worse than a stated blank, because an operator may have sized an order around it.
- Pack size
- Not publishedPack configuration for this blend is not fixed, so no pail or pouch size is published for it.
- Pack price
- Not publishedNo pack price is published for this blend. It is quoted on review rather than from a list.
- Dose rate
- Not publishedNo revision-controlled dose method is published for this blend, so no quantity is sized for it.
- Storage
- Store dry and cool, away from direct sunlight; keep the container tightly closed.
03When not to buy this
When this product is the wrong answer.
- The water is not genuinely cold. Cold-adapted strains cost more to make and that shows up in the price, so above roughly 50°F the standard pouch does the same work for less; the cold-weather grade earns its place only where low temperatures would otherwise stall the programme.
- There is an established sludge blanket to reduce. A soluble pouch disperses through the water column, and material sitting several feet below it is the sinking solid's job — water temperature does not change which vehicle reaches the blanket.
- The lagoon is poorly mixed, since dispersal through the water column is the entire mechanism and poor mixing removes it.
- An ammonia or nitrogen permit is the actual problem. Nitrifying bacteria do not survive drying, so no dry product can address nitrification — a cold-weather blend included.
The dosing planner screens for each of these and will say so rather than routing you to a quotation.
04Microbiology
What the organisms actually do to the material.
The mechanism is enzymatic hydrolysis. Bacillus species secrete enzymes into their surroundings that break large organic molecules into fragments small enough to be taken up and metabolised. The organisms are not consuming sludge directly; they are releasing the tools that take it apart.
| Enzyme | Acts on | What that is, in a lagoon |
|---|---|---|
| Protease | Proteins and peptides | The protein fraction of settled influent solids and of dead biomass. |
| Lipase | Fats, oils and greases | FOG, which floats and consolidates rather than settling out on its own. |
| Amylase | Starches and complex carbohydrates | Carbohydrate load, typically heaviest on food-processing influent. |
| Cellulase | Cellulose | Plant fibre and paper, which is a large share of a municipal blanket. |
Why Bacillus, and why a dry format costs nothing
Bacillus is the single most important bacterial source of exactly these enzymes, proteases in particular. It also forms endospores — a dormant state that survives drying, heat and time essentially intact, then germinates on contact with water and food. For this job the organisms that do the work are precisely the ones that dry best, which is why the two lead formats are dry and why that costs nothing biologically. Nitrifying organisms are the opposite case: they do not survive drying at all, which is why no dry product can address an ammonia permit.
What the published work supports
Mixtures of protease, cellulase and lipase reduce total suspended solids by 30 to 50 per cent and improve settling, with protease and cellulase together outperforming either alone. One controlled study reported 33 per cent volatile suspended solids reduction.
These figures are the mechanism, not a claim about this product: the peer-reviewed enzyme and hydrolysis work they rest on is collected in the scientific literature.
05Microbiological specification
The figures, and what each one is measured against.
Figures published in the product documents are shown here. Where the documents publish no numerical value, the row says so rather than carrying an estimate.
- Viable count at manufacture
- Not publishedNo viable count is published for this product.
- Guaranteed count at end of shelf life
- Not publishedNo guaranteed viable count at the end of the stated shelf life is published for this product.
- Strains in the blend
- Multiple cold-adapted strains; number not publishedThe count is withheld rather than estimated: a strain count is a property of the blend as fermented, and the blend is not yet placed.
- Operating temperature range
- Specified for application below 50°FA selection threshold — the point below which this grade is the right choice rather than the standard pouch — and not a tested tolerance range. No numerical lower limit is published.
- Operating pH range
- Not publishedNo numerical operating pH range is published for this product.
- Biosafety level
- Not publishedNo Biosafety Level designation is published for this product.
- Shelf life
- Not publishedNo shelf life is published for this product.