Nutrient recycling
Biosolids and feedlot wastes
Ecological Engineering
Digestion followed by solar or piston-press dewatering to >30% solids, with beneficial use as a nutrient (replacement for mineral fertiliser applications) and soil organic matter additive.
![photo 07](/images/ecoeng_article_images/photo_07.jpg)
Conventional Engineering
Disposal of high moisture content biosolids to landfill or application to remote agricultural land to avoid odour issues.
![photo 08. landfill biosolids](/images/ecoeng_article_images/photo_08.__landfill_biosolids.jpg)
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