Patent ID: 8545697

Claim:
A device for the treatment of waste material in a waste water collection system, the device comprising: an inner core comprising a first water-soluble material, the inner core further comprising an inner agent selected from the group consisting of oxygen generating materials, enzymes, bacteria, nutrients, flocculants, and mixtures thereof, and an outer portion comprising an outer agent distributed in a binder matrix of a second water-soluble material, the outer portion partially surrounding the inner core such that at least one surface of the inner core is exposed to ambient atmosphere, the outer agent being selected from the group consisting of oxygen generating materials, enzymes, bacteria, nutrients, flocculants, and mixtures thereof, the outer agent being the same or different from the inner agent, and the first water-soluble material of the inner core having a greater water solubility than the second water-soluble material of the outer portion.