Water treatment device and method

The invention discloses a water treatment device and method, the water treatment device comprises an anaerobic unit and a facultative unit which are sequentially communicated along the water inlet direction, and the anaerobic unit is used for carrying out biochemical treatment and physical filtration treatment on a to-be-treated water body in an anaerobic environment; and the facultative unit is used for carrying out biochemical treatment and physical filtration treatment on the water body output by the anaerobic unit in a facultative environment. According to the water treatment device, the anaerobic unit and the facultative unit are effectively combined, so that organic matters, ammonia nitrogen and suspended matters in the water body can be effectively removed, and the quality of the treated water body reaches the standard and be reliable and can reach the emission standard. 本发明公开一种水处理设备及方法，水处理设备包括沿进水方向依次连通的厌氧单元和兼氧单元，厌氧单元用于对待处理的水体进行厌氧环境下的生化处理以及物理过滤处理；兼氧单元用于对厌氧单元输出的水体进行兼氧环境下的生化处理以及物理过滤处理。上述水处理设备通过厌氧单元和兼氧单元有