Integrated biological rotating disk equipment applied to deep treatment of distributed type domestic wastewater

Abstract

The invention discloses integrated biological rotating disk equipment applied to deep treatment of distributed type domestic wastewater. The integrated biological rotating disk equipment comprises that an anaerobic unit, an anoxia unit, a flocculating settling pool, a biological rotating disk unit, a secondary sedimentation tank and an ultraviolet disinfecting device which are sequentially arranged on a machine body from back to front; the anoxia unit is provided with a total water inlet, the water outlet end of the anoxia unit is connected with the anaerobic unit, the water outlet end of theanaerobic unit is sequentially connected with the flocculating settling pool, the biological rotating disk unit, the secondary sedimentation tank and the ultraviolet disinfecting device through a static mixer, and the ultraviolet disinfecting device is provided with a total water outlet; a mud discharging system is arranged at the bottom of the machine body, and the mud discharging system is respectively connected with mud buckets at the bottom of the anoxia unit, the bottom of the anaerobic unit, the bottom of the flocculating settling pool and the bottom of the secondary sedimentation tank;a refluxing system is arranged in the machine body, and the refluxing system is connected between the biological rotating disk unit and the anoxia unit. The equipment has the advantages of higher impact load resistance, enhanced nitrogen and phosphorus removal capacity, compact structure and ability in achieving overall transportation and lifting; if the equipment is matched with a self-control system, unattended operation can be achieved.

Description

technical field [0001] The invention belongs to the field of sewage treatment and recycling, and in particular relates to an integrated biological turntable device for advanced treatment of domestic sewage, which is suitable for decentralized small-scale sewage treatment. Background technique [0002] There are two types of domestic sewage treatment systems: centralized and decentralized. Municipal domestic sewage usually adopts a centralized sewage treatment system. Some cities use a centralized processing system. However, such as rural and urban-rural junctions, high-speed service areas, tourist areas, independent villa areas, and military garrison areas are mostly not included in the coverage of urban municipal pipe networks. These sewage discharge points have the characteristics of small sewage output, scattered pollution sources, and a large number. However, if it is not treated, it will bring many environmental problems. Take rural domestic sewage as an example: in 2...

AI Technical Summary

Problems solved by technology

The biological turntable belongs to the aerobic process, which has a very ideal removal effect on SS, COD and ammonia nitrogen, but due to the lack of anoxic and anaerobic environment, the removal rate of TN is low. At the same time, it is difficult to cultivate phosphorus accumulating bacteria due to the less sludge produced by the turntable process. As a result, the TP effluent cannot reach the standard stably

Therefore, under the current increasingly stringent sewage discharge standards, the existing integrated biological turntable technology is difficult to ensure that the effluent can meet the standards stably

Images