Advanced Microbial Digestion (AMD)™

Advanced Microbial Digestion (AMD)™

AMD™ is not a product but rather a holistic system of manufactured inputs, assessments, purpose- built equipment and professional monitoring.

AMD™ is a treatment system used to assist the existing bacterial functionality of wastewater ponds increasing degradation of organic solids. It is based around the application of bacteria, biostimulants and bacterially produced catalysts that promote reactions on organic particulate within the treatment pond.

The AMD™ process has been successfully used to significantly reduce existing organic sediment accumulations in wastewater ponds for over fifteen years in New Zealand.  It has also been used to prevent organic particulate accumulations in wastewater ponds on an ongoing and sustainable basis.

Bioaugmentation treatment is becoming recognised as the most powerful and cost-effective method for removing solids in a safe and environmentally sustainable way.

Advanced Microbial Digestion (AMD™) treatment programs use additives to help regenerate existing biomass in your treatment plant or lagoon.  Based on wide-ranging metabolic pathways and processes including aerobic, facultative, anaerobic and anoxic capabilities, these additives are designed to respond to the unique requirements of the system being treated.  AMD™ provides the biological tools needed to support environments at all stages with different types of support depending on specific needs.

Parklink utilise technologies that have been used successfully for more than 40 years around the world. Parklink’s bio-augmentation helps to improve wastewater and stormwater treatment plant performance without the need for capital expenditure.

Parklink will visit you on site to gain an understanding of your treatment plant and recommend a course of action that may include preliminary testing and surveys.  We will then design an action plan and treatment program specifically for your situation.

See how it works





An engineered bio-enzyme for reducing waste sludge production

Do you spend too much money hauling sludge? Do you have trouble land applying? The catalysts in SELECT-Sludge® reduce sludge hauling and digest the toughest forms of undigested BOD. Things like lint, paper fibers, plant tissue, and oils typically settle out in a wastewater plant, then end up as digester sludge.

SELECT-Sludge® contains a biochemical catalyst, developed by our lab, that when added into a wastewater treatment plant, digester or sludge storage tank it degrades all the grease, oils, waxes and papers the bacteria cannot. This liberates difficult-to-access carbon and turns it into food for the bacteria, creating less sludge.

This improves settling, creates a denser sludge and gives you much less to haul. It’s far cheaper than diesel.

The Science Behind It

SELECT-Sludge® reduces both polymer cost and sludge hauling, while increasing the percent cake solids.

The catalysts in SELECT-Sludge® convert insoluble BOD to soluble simple sugars and materials so the bacteria can digest it. This process promotes great digester sludge reduction. Many new wastewater treatment plants do not have primary treatment. This means the aeration basin catches everything including hard-to-digest fats, surfactants, paper products, and complex chemistries sent by industries.

In other words, all the insoluble BOD goes into the digester or sludge storage tank, and SELECT-Sludge® is going to significantly reduce it.

If you think filaments are causing poor settling, contact us for microscopic analysis.

SELECT-Sludge® Benefits

  •     Improves settling
  •     Improves dewatering
  •     Reduces digester sludge volume
  •     Lowers polymer use
  •     Lowers sludge hauling