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If you have any further questions, please phone us on 01228 522255

What is in the Products?

The three active ingredients are:
  • Specially selected strains of bacteria
  • Bio-enhancer 
  • Micro-nutrients
The carrier is oat bran. Products may also include surface tension depressants. All the ingredients are bio-degradable.

How does the product work?

The micro-organisms (or bacteria) on the bran will transfer onto the inner walls of the pipework and the tanks in your wwtp to form a film – a biofilm, or biomass. The micro-organisms will produce enzymes which treat the organic contamination, such as Fats, Oils and Greases (FOG), domestic sewage, and some hydrocarbons, as "food". Enzymes are natural catalysts; they change the state of the contamination. They are able to remove the organic material from the wastewater. The final end-products of this process are the natural compounds of H2O and CO2.

We call this Bioaugmentation, because you are augmenting (adding to) the naturally occurring biomass within your wwtp.

So what does the bio-enhancer do?

The bio-enhancer acts as a food source for the bacteria.

The micro-organisms in the product are freeze-dried. When they make contact with water, they “wake up”. In perfect conditions, if they have access to food, the bacteria should double in number in the first twenty minutes. In reality, because the contamination may be difficult to find, often there can be a rapid dying off of the micro-organisms. By placing the bio-enhancer actually into the product alongside the micro-organisms, we are giving them their very own food parcel to get them through that first critical twenty minutes.

Why are there micro-nutrients in the product?

Nutrients are required for cell growth. Inadequate amounts of essential nutrients will substantially slow the growth rates of micro-organisms, and therefore, their ability to remove the organic material from wastewaters.

Where should my clients dose?

As near to the inlet to their system as possible. The aim is to create as large a biofilm as possible throughout their entire plant. In practice most operators dose at the headworks or failing that, into the primary tank.

Why is there an Initial Dose and a Maintenance Dose?

The Initial Dose is to establish a biomass.

But micro-organisms are living things and so they die. In perfect conditions, the biomass would be self sustaining, but it’s unlikely that the wwtp is perfect for micro-organisms. More will die, or be washed through the plant, than can remain there – so we need a regular Maintenance Dose to maintain the biomass.

Which industries can use these products?

Industries where the manufacturing process produces wastewater which has a high level of organic contamination – Food manufacturing and processing (including Dairy, Fruit vegetable and wine, Fish Farming); Pulp and Paper; Chemicals. They are also widely used in the treatment of domestic sewage and in Anaerobic Digesters. EnBac® B350 is used in the treatment of contaminated land.

Why do industries need bioaugmentation when most sewage treatment plants don’t?

Sewage Treatment Plants treating sewage from homes and commercial properties have huge collection systems. The drains that feed into the plants may be many kilometres long. This means there is plenty of surface area for friendly bacteria to live on. In effect, much of the contamination is already removed before it reaches the plant.

In industry, the source of the contaminated wastewater and the treatment plant may only be a few metres away from each other. In general, wwtps in industry have to work much harder than sewage treatment plants run by the utilities. They may have to deal with less volume of wastewater, but the level of contamination will generally be higher.

Are the products hazardous?


EnBac® powder products are non- hazardous. Coshh sheets are not required for these products. If you require an MSDS, please contact us and we’ll happily send you one.

Do they need special handling?

DO NOT FREEZE! Store in a cool, dry location. Do not inhale dusts. Avoid excessive skin contact. See MSDS.

How are the products packaged?

We place 250g in water-soluble sachets, so it’s easy to dose the correct amount – no measuring! We put 40 x 250g sachets (10 kg) in each plastic bucket. The maximum we can safely place on a pallet is 60 buckets (600kg).

My clients require particular packaging. Can you help?

Usually, Yes. Please contact us to talk about it.

Can I rebrand EnBac® products with my own brand?

Usually, Yes. Please call us.

How do I get brochures and msds?

Product brochures can be downloaded from this website. If you want a Material Safety Data Sheet for a particular product, please get in touch. We can send them electronically, or in the post.

Are the bacteria genetically modified?


Do we need permission from the Environment Agency to use these products?


What is their shelf life?

Two years.

How much do I dose?

Dosage rates are usually dependant on the flowrate into the plant. The information you need is on the product brochure or contact us and we’ll help you work it out.

Are enzyme products any good in treating wastewater?

Enzyme products will degrade the contamination in wastewater. The problem is, that they only work the once – the enzymes will be washed through the plant very quickly. Bacterial products are always superior to enzyme products because the bacteria live in the wwtp and keep producing enzymes. Enzyme products are like giving a man a fish – you feed him once. Bacteria products are like teaching a man to fish – you feed him many times.

What conditions do the bacteria need?

Bacteria are living things, so if they are not in the right conditions, they will die.

The optimum range for pH should be 6-8. Below 4 and above 10 is unacceptable.

The optimum range for temperature is 25 deg C – 40 deg C. Above about 65 deg C, they die. The closer to zero deg C it is, the less active the microorganisms are. 

The bacteria will work in aerobic and anaerobic conditions, but will work better in aerobic conditions.

Anything else?

Probably. Every application is different. If you have particular concerns about your client, please get in touch and we’ll try our best to help you.


Bio-Systems now manufacture our high quality Bioaugmentation products in the UK, for distribution to Europe and beyond. Our warehouse in Carlisle holds a large inventory so we can quickly respond to your requirements.


We provide clear information about our products with appropriate technical advice for the application