Anaerobic Granular Sludge Formation Under Saline Conditions

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Disposal of untreated wastewater streams into receiving water bodies without prior treatment can cause detrimental effects, such as eutrophication, toxicity to aquaculture and decrease in oxygen levels. Around 5% of (waste)water generated globally is saline or highly saline. 

Anaerobic biological treatment of saline wastewater streams has been reported to be a cost-effective and environmentally friendly alternative compared to physical and chemical treatment, because anaerobic wastewater treatment allows to combine removal of organic matter with recovery of energy in the form of biogas.