Abstract: The method of making an acid-absorbing biosolid composition provides a method for the use of recycled materials to produce an acid-absorbing composition that may then be recycled as a fertilizer after absorbing the acid. The method includes the steps of: collecting sewage sludge; drying the sewage sludge to remove water therefrom to form dried sludge; adding hydrochloric acid to the dried sludge to form a liquid intermediary product; heating the liquid intermediary product to produce a dried porous biomass; and mixing inorganic waste material with the dried porous biomass to produce the acid-absorbing biosolid composition. Thereafter, the acid-absorbing biosolid composition may be placed in a gas flow to absorb an acidic component therefrom; and then recycled for use as fertilizer following absorption of the acidic component from the gas flow.

Abstract: The method of making an acid-absorbing biosolid composition provides a method for the use of recycled materials to produce an acid-absorbing composition that may then be recycled as a fertilizer after absorbing the acid. The method includes the steps of: collecting sewage sludge; drying the sewage sludge to remove water therefrom to form dried sludge; adding hydrochloric acid to the dried sludge to form a liquid intermediary product; heating the liquid intermediary product to produce a dried porous biomass; and mixing inorganic waste material with the dried porous biomass to produce the acid-absorbing biosolid composition. Thereafter, the acid-absorbing biosolid composition may be placed in a gas flow to absorb an acidic component therefrom; and then recycled for use as fertilizer following absorption of the acidic component from the gas flow.

Abstract: The method of making an acid-absorbing biosolid composition provides a method for the use of recycled materials to produce an acid-absorbing composition that may then be recycled as a fertilizer after absorbing the acid. The method includes the steps of: collecting sewage sludge; drying the sewage sludge to remove water therefrom to form dried sludge; adding hydrochloric acid to the dried sludge to form a liquid intermediary product; heating the liquid intermediary product to produce a dried porous biomass; and mixing inorganic waste material with the dried porous biomass to produce the acid-absorbing biosolid composition. Thereafter, the acid-absorbing biosolid composition may be placed in a gas flow to absorb an acidic component therefrom; and then recycled for use as fertilizer following absorption of the acidic component from the gas flow.

Abstract: A cement composition is made from a heat activated chemical salt selected from the group consisting of magnesium oxide, potassium oxide, sodium oxide, and calcium oxide and mixtures thereof. This activated salt is the mixed with hydraulic cement in an amount of 2½ to 3½ parts activated salt to one part hydraulic cement and the resulting mixture of hydraulic cement and activated salt is mixed with water and aggregate. In addition, industrial waste may be added to the mix in minor amounts of 5 to 30 percent.

Abstract: A cement composition is made from a heat activated chemical salt selected from the group consisting of magnesium oxide, potassium oxide, sodium oxide, and calcium oxide and mixtures thereof. This activated salt is the mixed with hydraulic cement in an amount of 2½ to 3½ parts activated salt to one part hydraulic cement and the resulting mixture of hydraulic cement and activated salt is mixed with water and aggregate.