The invention relates to a biological activator for septic tanks. The biological activator is characterized by the fact it is in the form of a non-corrosive, non-toxic, finely-divided product having a significant specific surface constituting a base for the optional anaerobic microbic flora, permitting an increase in the density of bacterial saturation in the septic tank for an equivalent quantity of nutriment.
This invention relates to a biological activator for a septic tank of the type comprising a product in the form of solid particles, which is non-corrosive, non-toxic, finely divided, and of large specific area, comprising a colloidal phase in suspension and a flocculent phase, having a reducing power of mineral origin, its function being to form a support for anaerobic microbial flora in a septic tank in order to increase the bacterial saturation density in a septic tank for an equivalent quantity of nutrients, its specific area being (in m.sup.2 /g) between about 25 and 66, more particularly between about 35 and 66, and advantageously between about 46 and 60, and a cation exchange capacity (in meq/100 g) between about 9 and 38, more particularly between about 14 and 38, and advantageously between about 24 and 35.