Lime products including quicklime convey a number of benefits when treating biosolids including flocculation, pH correction, metal precipitation, heating effect and dewatering functionality.
Dewatering – Dewatering biosolids with quicklime has potential to reduce operational costs in several areas including lower chemical reduction costs, reduced polymer usage, reduction in wash water required, reduced cartage costs and reduced capital costs for solids storage.
Heating effect – As quicklime comes into contact with sufficient moisture it will hydrate and when this occurs a exothermic reaction generating heat and can effectively pasteurize the solids.
Odor Management - The solubility of hydrated lime provides free calcium ions, which react and form complexes with particularly odorous sulfur species such as hydrogen sulfide and organic mercaptans. Research shows that as a result of this reaction, the offending compounds are destroyed and not just masked or hidden.
- Environmental Applications of Lime – Treating Biosolids and Sludge, National Lime Association of North America
Graymont carefully monitors its lime production processes to provide products that meet the required specifications.
Please refer to the related products shown or contact our sales team to enquire about biosolids treatment.