There is provided an animal bedding waste bag sealer apparatus(10) for sealing bags of waste animal bedding and a system and method for disposal of waste animal bedding from animal housings. The apparatus comprises a substantially planar body (12) with an upper face (14), a lower face (15) and two opposing side walls (18) mounted between the upper and lower faces. An opening (20) is arranged in the planar body (12) that can accommodate a bag to be sealed. The apparatus has first (24) and second (25) sealing members located between the upper face (14) and the lower face (15) of the planar body (12) orientated substantially parallel to each other. Each sealing member (24)(25) further comprising an upper sealing portion (40), a lower sealing portion (42) and a cutting portion (44), the cutting portion (44) arranged between said upper (40) and lower (42) sealing portions. A conveying device provides movement of the first sealing member (24) in a first direction towards the opening (20) and in a second direction away from the opening (20) and the second sealing member (25) in a first direction towards the opening (20) and in a second direction away from the opening (20).Linvention porte sur un appareil de scellement de sacs de déchets de litière danimaux (10) pour sceller des sacs de déchets de litière danimaux et sur un système et sur un procédé pour la mise au rebut de déchets de litière danimaux à partir de logements danimaux. Lappareil comprend un corps sensiblement plan (12) avec une face supérieure (14), une face inférieure (15) et deux parois latérales opposées (18) montées entre les faces supérieure et inférieure. Une ouverture (20) est disposée dans le corps plan (12), cette dernière pouvant recevoir un sac à sceller. Lappareil a des premier (24) et second (25) éléments de scellement disposés entre la face supérieure (14) et la face inférieure (15) du corps plan (12), orientés sensiblement parallèlement lun à lautre. Chaque élément de scellement (24) (25) compre