Integrated Device for Ecological Purification of Domestic Sewage at Small Distributed River Suspended Sewage Outlets

Abstract

The invention discloses a small-scale decentralized integrated device for ecological purification of domestic sewage at a suspended sewage outlet of a river, which includes a sewage collector at the sewage outlet, an upflow sedimentation sand filter, a three-stage ecological purification cage and a solar aeration system; the three sections The ecological purification cage is composed of an anaerobic treatment bag, a solar-driven contact oxidation bag and a deep adsorption decontamination water outlet end-to-end; the device collects the waste water from the sewage outlet through the waste water collector, and enters the third section after flowing through the upflow sedimentation sand filter Type ecological purification cage, the three-stage ecological purification cage is composed of waterproof cylinder and plastic flange, and finally discharged into the river through the outlet; at the same time, the three-stage ecological purification cage is fixed on the inner side of the river bank by anchor rods, and the device The resulting exfoliated biofilm can be manually removed. The device has novel and simple structure, convenient maintenance, no additional energy consumption, good river landscape effect, and does not affect flood control safety, and has strong application and promotion value.

Description

technical field [0001] The invention relates to a small-scale decentralized integrated device for ecological purification of domestic sewage at suspended sewage outlets of river courses, belongs to the technical field of pollution control, and is especially suitable for ecological restoration projects of small and medium-sized polluted river courses in cities and towns. Background technique [0002] The severe pollution of small and medium-sized rivers in cities and towns is a major environmental problem faced by the government and local residents. The governance of small and medium rivers has become an important task that urgently needs to be solved in cities and towns in my country to improve city appearance, improve residents' living standards and build a harmonious society. [0003] At present, the construction of sewage treatment and sewage collection pipelines in many cities and towns is seriously lagging behind. As a result, many urban rivers have multiple sewage outl...

AI Technical Summary

Problems solved by technology

[0005] For the treatment of sewage outfalls of river channels, in addition to traditional measures such as blocking, more common methods include: planting aquatic plants (mainly emergent plants) around the surroundings or setting up trash dams, etc., but this type of simple pollution control mode Although the construction period is short, the results are poor. Among them, the ability to remove pollutants by planting aquatic plants alone is very limited, and the removal efficiency of the trash dam for pollutants is also quite low, making it difficult to meet the current water quality needs of river management.

For example, the biofilm contact method is used to purify domestic sewage, but this method has limited decontamination capacity only by biological treatment, and additional deep purification measures are necessary, and it does not consider the sedimentation treatment of influent suspended solids and the recovery of effluent biofilm, so filtration The tank is more prone to clogging and creates an anaerobic environment, resulting in poor effluent quality

In addition, the adaptive sewage outlet adjustment device that involves entering the river water body is mainly designed based on the flow characteristics of the river confluence area to enhance the diffusion and transport of pollutants, without considering the purification effect

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