A method for treating and disposing of mercury—from mercury-contaminated waste—includes recovering high-purity mercury (e.g., greater than about 99.0 wt. % elemental Hg) from the mercury-contaminated waste. The high-purity mercury is converted to mercuric sulfide (HgS). The mercuric sulfide (HgS) is intermixed with a polymer-based material to form an encapsulated mercury material. The encapsulated mercury material is disposed within a sealed waste container. The sealed waste container is disposed of at a landfill site. Also disclosed is a mercury-including waste product that comprises pellets. The pellets comprise mercuric sulfide within a polymer material.

Methods and systems for producing nanocellulose-adhesive resin compositions for the manufacture of wood-based panels, and methods of using said adhesive resin compositions.

Methods and systems for producing nanocellulose-adhesive resin compositions for the manufacture of wood-based panels, and methods of using said adhesive resin compositions.

Powder compositions containing processed solid waste are provided herein, as are products made from the compositions, and systems and methods for making the compositions and products.

Powder compositions containing processed solid waste are provided herein, as are products made from the compositions, and systems and methods for making the compositions and products.

A process for treating photopolymer material that makes up master plates in flexographic printing includes: shredding and refining the plates into pieces smaller than 10 mm in any direction; subsequent cold grinding to obtain a powder with a particle size ranging from 100 to 500 microns; drying the powder at a temperature of 80-120 C. for two hours; introducing the dried powder into a twin-screw extruder with corotating screws with rotation of the screws between 150 and 250 rpm where the dried powder is mass mixed with a polymer melt at a temperature of 160-300 C.; collecting at an exit of the extruder a homogeneous mass mixture of polymer melt and powder which is collected in the form of an extruded wire which is cooled; and pelletizing the extruded wire.

A process for treating photopolymer material that makes up master plates in flexographic printing includes: shredding and refining the plates into pieces smaller than 10 mm in any direction; subsequent cold grinding to obtain a powder with a particle size ranging from 100 to 500 microns; drying the powder at a temperature of 80-120 C. for two hours; introducing the dried powder into a twin-screw extruder with corotating screws with rotation of the screws between 150 and 250 rpm where the dried powder is mass mixed with a polymer melt at a temperature of 160-300 C.; collecting at an exit of the extruder a homogeneous mass mixture of polymer melt and powder which is collected in the form of an extruded wire which is cooled; and pelletizing the extruded wire.

Powder compositions containing processed solid waste are provided herein, as are products made from the compositions, and systems and methods for making the compositions and products.

Powder compositions containing processed solid waste are provided herein, as are products made from the compositions, and systems and methods for making the compositions and products.

An excrement treatment material includes a plurality of grains, and a packaging bag. The plurality of grains are grains for treating excrement. The plurality of grains are housed in the packaging bag. A charge amount of an inner surface of the packaging bag is larger than a charge amount of an outer surface of the packaging bag.