Anaerobic and aerobic integrated high-density biological stuffing reactor

Abstract

The invention belongs to the technical field of sewage treatment of environmental engineering and particularly relates to an anaerobic and aerobic integrated high-density biological stuffing reactor. The reactor has a cylindrical structure and consists of an anaerobic biological stuffing regulating tank, an aerobic biological stuffing reaction tank, a secondary settling tank and a sludge storage tank, wherein the anaerobic biological stuffing regulating tank is arranged on the middle part of the reactor and the other three surround the anaerobic biological stuffing regulating tank in a radial way. Materials are integrally prepared in the reactor and moveably connected with the reactor and can be conveniently extracted from the reactor, so that the reactor can be washed and maintained regularly and operation is simple and convenient. The design fully uses the discharge characteristics of rural decentralized sewage, needs no power lifting device in a water treatment flow and has the advantages of energy conservation and low cost. Moreover, the reactor has a compact and integrated structure and occupies a small floor area; system equipment is a little, and investment and operation cost are low; and thus, the reactor is applicable in rural decentralized living sewage treatment.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering sewage treatment, and in particular relates to an anaerobic-aerobic integrated high-density biological filler reactor. Background technique [0002] Rural development is an important aspect of promoting rural urbanization and has important strategic significance in the process of modernization in my country. However, my country's current rural development is facing many problems, especially the quality of rural ecological environment is rapidly and continuously deteriorating. At present, there are more than 600,000 administrative villages and more than 2.5 million natural villages in China, where more than 200 million peasant households and nearly 800 million people live. However, the rural sewage treatment rate in my country is low, the discharge volume is large, the daily variation coefficient is large, and the collection and treatment facilities are not perfect, which has cau...

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Problems solved by technology

[0004] Domestic integrated fixed packing reactors, such as Chinese patent 200420092487, although the hydraulic retention time is short, the structure is compact and simple, but the vertical flow type requires more external energy from the sewage pump to overcome the resistance of the packing to form an upflow flow, and the energy consumption Larger, and the biofilm flocs are deposited on the surface of the fixed filler, which affects the quality of the effluent

Chinese patent 200710133336 adopts pressurized aeration operation in a closed reactor. Although the treatment effect is better, it needs to provide more external energy, the investment is too large, and the manager is required to have a certain level of operation. For rural decentralized life Sewage treatment does not apply

The upflow anaerobic-aerobic integrated biofilm reactor designed by China University of Mining and Technology, although the equipment has a simple structure, high load, and small footprint, but the denitrification effect of the device is not ideal, and the sewage pump is required to provide the water flow upward power , large energy consumption

Chinese patent 95236038 adopts anaerobic pond, aerobic pond, and sedimentation pond to remove nitrogen and phosphorus, and the treatment effect is better, but the three parts need to be carried out through the power transmission of the sewage pump, which consumes a lot of power and occupies a large area. Suitable as a treatment process for rural decentralized domestic sewage

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