Sludges & Biosolids

Are you sitting on a toxic time bomb…or a goldmine?

New Zealand produces thousands of tonnes of biosolids each year most of which is landfilled. Landfilling is becoming more difficult due to increased levies, lack of space and increasing transportation distances.

LEI can help you identify and implement alternative solutions, such as digested and dewatered solids, dried pellets, to manage oxidation pond sludge and many other types of water and wastewater sludges.

Specific biosolids expertise and services provided include:

Sampling and characterisation
Site assessments
Risk analyses
Identification of suitable disposal sites
Resource consent and assessment of environment effects
Compliance applications
Community consultation
Management plans
Sludge removal, dewatering, transport and application


Read more in our Biosolids Brochure

Find out about the Regional Biosolids Strategy