BioSpikes® 5000

BioSpikes® 5000

BioSpikes® 5000 offer a new way to minimize settled sludge volume and reduce solids handling costs in wastewater lagoons. BioSpikes® 5000 are formed as dense spikes that rapidly sink to the bottom of a lagoon, even when applied to the water's surface. 

1 case contains 125 spikes. Total weight 18.75kg (42lbs).  

BioSpikes® is our best-in-class solution for you to:

  • Reduce lagoon sludge volumes by 15-40%
  • Reduce the cost and frequency of dredging
  • Improve hydraulic retention time
  • Minimize short-circuiting
  • Apply directly to hot spots

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BioSpikes® is a plug-and-play solution with no CAPEX requirements

BioSpikes® 5000 are formed as dense spikes that rapidly sink to the bottom of a lagoon, even when applied at the water's surface. When the spikes reach the sludge layer, they release billions of microorganisms, fast-acting enzymes, and essential micronutrients directly into sludge.

This combination ensures rapid stimulation of biological activity that minimizes the sludge layer by making the sludge more compact. This reduces the dredging frequency, increases hydraulic retention time, and improves overall performance.

BioSpikes® 5000 work as the better alternative to free up lagoon capacity, save energy and reduce the cost of dredging. All with no CAPEX requirements in a plug-and-play solution. 

A municipality increased its lagoon capacity and postponed a $600,000 dredging project with BioSpikes® 5000.

A municipality increased its lagoon capacity and postponed a $600,000 dredging project with BioSpikes® 5000.

A treatment with BioSpikes® 5000 was initiated in a municipality to optimize their lagoon system and overall operational performance.

Read the full case and explore how BioSpikes® 5000 can improve your plant.

Canadian pulp mill reduced sludge and increased lagoon capacity by 2,000 m3

Canadian pulp mill reduced sludge and increased lagoon capacity by 2,000 m3

BioSpikes® 5000 was used at a Canadian pulp mill to reduce sludge and increase lagoon capacity by 2,000 m3, without deterioration of effluent quality. 

Read the full case and learn what this could mean for your treatment plant. 

Here is what our customers say about us:

"We switched our lagoon clients over to the BioSpikes which has made application easier and sludge management more effective"

Neil Pry, Program Manager, Industrial Fluid Management, A Division of Kleinfelder

How to use

Unpack and inspect BioSpikes  

Each spike is 5.3” long and 1.6” in diameter and weighs approximately 5 oz. Each case of BioSpikes® 5000 contains approximately 125 spikes and weighs 41.34lb (18.75 kg).  

You might see some broken BioSpikes® 5000 which might occur if shipping is rough -- but this does not impact performance, as long as you still use the proper dosage. 

When handling BioSpikes, avoid inhalation of dust.  Wash hands thoroughly with soap and water after handling.  Avoid contact with eyes.  

Determine how many BioSpikes to use…and how often to apply

First determine if you want to reduce the overall sludge layer across a broad lagoon area or if there are problem areas or hot spots to target. The table below provides guidance on the number of cases used for a given size of lagoon. Estimate the size of your lagoon or portion to be treated in acres or square feet and convert to acres.  There are 43,560 ft2 in an acre. For additional guidance, please contact Novozymes and talk with one of our experts.

  Cases per acre Cases per hectare
  Initial dose  8 - 12  20 - 30
  Maintenance dose  6 - 10  15 - 25
  Hot spot dose  8 - 12  20 - 30

BioSpikes® 5000 applied over a broad area reduce the overall sludge layer in a lagoon. BioSpikes® 5000 applied at a higher dosage in problem areas or hot spots yield greater sludge reduction. Sludge quality varies with system design, sludge age, amount and type of inert material, and compaction. This affects the degree to which the sludge depth can be impacted, and dosing frequency.  

For applications over broad area, an initial dosage is recommended to reduce the existing sludge volume. Follow-up applications at reduced dosages are recommended every 30 – 90 days, depending on the sludge accumulation rate and rate of compaction.  

Hot spot dosing is recommended for areas where sludge tends to accumulate at an accelerated rate and lagoon efficiency is impacted. Results may vary pending on the concentration of inert solids found in the sludge.   

Application in lagoons or ASBs treating municipal wastewater and simpler organic materials should dose at the lower end of the range. Applications in heavier industries, like pulp and paper, should use the higher end of the dosing range.  

Please contact Novozymes for further assistance in developing a site-specific dosing plan.

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Apply BioSpikes to your lagoon

BioSpikes® 5000 are dense and sink to the bottom of the lagoon when dropped in.  They can be applied to large surface lagoons using a boat. PVC piping can also be used to position BioSpikes®5000 areas where accuracy is critical. 

Measure your sludge reduction

It is possible to determine how well BioSpikes are working by conducting a sludge survey.  Instructions can be found by here.  (insert link to document describing the Sludge Judge or alternate methods) 

Several case studies have demonstrated the efficacy of BioSpikes with documented measurements and conditions. 

Learn more

Storing BioSpikes

Store product with intact packaging in a cool, dry place and away from sunlight at 10-35C (50-95F), or if possible, at 0-20degC (32-68degF). 

Use by the best-before date which is found on the product label and certificate of analysis.  Is this information found on both?  …can someone please check this…but okay as is to run with 

Product gives optimal performance when stored as recommended and used within 12 months from production. 

Documentation for download


What are the benefits of BioSpikes?
  • The use of BioSpikes is a cost-effective way to reduce sludge volume and improve lagoon treatment efficiency
  • Expensive dredging costs are reduced or eliminated
  • BioSpikes are easily applied to broad areas or targeted hot spots where sludge has accumulated


Will BioSpikes cause my sludge to float?

BioSpikes work in situ to degrade sludge both aerobically and anaerobically. Although some additional gases may be generated as a result of this additional digestion, the total amount generated and the rate at which it is generated is not sufficient enough to cause appreciable floating solids.

Will BioSpikes negatively impact my effluent quality?

BioSpikes have been used successfully in many applications with no incidents of degraded effluent quality.

More often, the reduced sludge volume and enhanced treatment capacity improves effluent quality. 

Do I need a boat?

BioSpikes are only effective in areas where they can be applied. They are not mobile nor disperse significantly. For this reason, boats are often used to apply in areas which cannot be reached by tossing from the bank. 

Please follow safe practices when using a boat. 

What if the solid spike is broken?

BioSpikes are packaged to withstand normal shipping and handling.

That being said, some spikes may arrive broken. Broken spikes are still effective and should be applied in the same manner as whole spikes.

Is there a best time to apply?

We recommend applying only after water temperatures exceed 10 oC (50 oF). For pond systems, which have naturally occurring Spring turnovers, we recommend waiting to apply until after the solids have resettled. 

How often to apply?

Application frequency will vary based on the dose and the type of sludge. Routine applications occur as often as twice a year - often with a high dose first dose.

Some hot spot applications may require more frequent dosing, especially if its related to hydraulic short-circuiting.

Are BioSpikes safe to handle?

There is nothing hazardous in BioSpikes. All bacteria used in the spikes are classified as Biosafety level 1, and are generally recognized as safe.

At a minimum, we recommend wearing gloves. Please refer to the Safety Data Sheet (SDS)

What do BioSpikes degrade?

BioSpikes degrade the organic fraction of the sludge. This is often estimated as its volatile solids content (VS%). We recommend testing the surface layer of the sludge (first 12 cm or 5 inches) for its VS%. 

BioSpikes should only be used where VS% is 50% or greater. Sludge with high components of inert materials like sand, grit, minerals, or talc are not good candidates for BioSpikes.

Is there a way to test this at small scale?

Unfortunately, there is no practical way to test efficacy at a small scale, which truly replicates the nature of an undisturbed pond bottom sludge. The act of transferring sludge from the pond to a sampling container is inherently disruptive.

For this reason, we recommend small scale trials be performed in situ along transects of manageable size. 

Where are BioSpikes 5000 approved for use?

BioSpikes 5000 are approved for use in North America (both U.S. & Canada) 

How do BioSpikes work?
  • The combination of microorganisms, enzymes, and essential nutrients stimulates biological activity in the sludge
  • The shape and density of BioSpikes allows them to drop to the bottom sludge layer of the lagoon and degrade the substances that hold decaying biomass intact
  • Floc particles in the sludge become larger and denser…and denser floc particles contain less water and lead to greater compaction of the sludge layer

Please contact us with your questions

Contacting us is probably the most important step towards reducing sludge and increasing lagoon capacity. Our experts Steven and Chris are ready to answer your questions or concerns. Send us a message and get a fast track to positive outcomes.

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