Skip to content
SediLogic Technologies

Liquid concentrate, cold-weather blend

SediLogic Liquid Cold

The base liquid's job, in a blend selected to keep working as the water cools. A concentrate for systems that take a metered liquid and that also run cold enough that a standard blend would slow — the same digestion of organic material, carried by strains chosen for low temperatures.

01Why this format

Organic load in liquid-dosed systems running cold

This answers two things at once: a system dosed by liquid, and water cold enough that a standard blend sits idle. Biological activity falls away as water cools, and this blend is selected to keep going further down the range. It is the narrower of the two liquids, and deliberately so — where the water is not genuinely cold, the base liquid does the same work for less, and where the target is a settled blanket a sinking solid is the right vehicle whatever the temperature.

It works in the metered or poured, as the installation allows, and it suits liquid-dosed systems working through cold conditions.

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
5 gal pail
Pack weight
Not publishedSold by volume rather than by weight.
Shipping weight
41.95 lbIndicative until a filled pail is weighed. Freight is confirmed on the reviewed order.
Pack price
$515Indicative. Freight, tax and the final price are settled in the reviewed quote.
Dose rate
Not publishedNo revision-controlled dose method is published for this format, so no quantity is sized for it.
Storage
Store in a cool, dry place, away from direct sunlight; keep the container closed.

03When not to buy this

When this product is the wrong answer.

  • Your target is the bottom blanket and a solid can be dosed. A dense solid puts organisms at the blanket where the material sits; any liquid, cold-weather or not, disperses through the water column instead.
  • The water is not genuinely cold. The cold-weather blend earns its place only where low temperatures would stall a standard product; in warmer water the base liquid does the same work for less.
  • The target is an accumulated benthic sludge blanket. A liquid introduced at the surface disperses through the column rather than concentrating on the blanket, which is the whole reason the sinking solid exists.

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 classes produced by Bacillus and the material each acts on
EnzymeActs onWhat that is, in a lagoon
ProteaseProteins and peptidesThe protein fraction of settled influent solids and of dead biomass.
LipaseFats, oils and greasesFOG, which floats and consolidates rather than settling out on its own.
AmylaseStarches and complex carbohydratesCarbohydrate load, typically heaviest on food-processing influent.
CellulaseCellulosePlant fibre and paper, which is a large share of a municipal blanket.
Light micrograph of stained Bacillus: dark blue rod-shaped bacterial cells and short chains against a pale background.
Bacillus · stained light micrograph

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.

Peer-reviewedControlled studyEnzyme mechanism. Field efficacy figures in this category are measured by the seller rather than independently, ours included, and are labelled that way.

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
2.2 billion CFU/mLA count published on the product sheet; no end-of-shelf-life guarantee is stated.
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
Not publishedThe current cold-weather liquid sheet identifies a blend of Bacillus strains but gives no strain count.
Operating temperature range
For wastewater below 50°FSelection threshold for the cold-weather blend, not a full tolerance range.
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
24 months

The range

Other formats, and what each one is for

Which product fits is a question of where the material sits and how the system is dosed, not of which is stronger. Only a sinking solid reaches a settled blanket; a pouch or a liquid works on what the water column is carrying.

Same duty — Metered or poured, as the installation allows

Elsewhere in the range

Get a dosing planCompare the range