Abstract: Provided are a vacuum head, a collection bin, a cleaning tray, a filter assembly, and a cleaning apparatus. The cleaning apparatus includes: a housing, a rolling brush, and a cleaning assembly, where the cleaning assembly includes a cleaning medium inlet and a plurality of cleaning medium spray orifices; the plurality of cleaning medium spray orifices face the rolling brush, and lengths of flow channels from various cleaning medium spray orifices to the cleaning medium inlet are equal. According to the present disclosure, a cleaning medium may be sprayed to a rolling brush surface uniformly, so that the rolling brush may be cleaned completely, thereby improving the cleaning efficiency and the cleanliness of the rolling brush.

Abstract: The present disclosure provides a rod-type cleaning component and a dust collector with the same. The rod-type cleaning component includes a rod body, the rod body includes a suction pipe connected with a suction inlet of a floor brush, a recycling tank for recycling sewage and a solution tank for providing clean liquid, a main unit joint is arranged at an upper end of the rod body, a floor brush joint is arranged at a lower end, and more than one separation ribs are arranged in an inner cavity of the suction pipe to divide the inner cavity into more than two chamber air ducts.

Abstract: The present invention relates to a process for biochemical treatment of waste water. The process uses a nano material such as carbon black to induce micro to degrade organic pollutants in the waste water which are generally unable or hard to be degraded and thereby greatly enhance the effect of biological cleaning of waste water. The effect is more prominent for the waste water that is hard to treat by the conventional biochemical treatment, high concentration waste water, and highly poisonous waste water. The process of the present invention is widely usable in the aerobic, oxygen-facultative or anaerobic biochemical treatment systems.