Tower-type ecological purification integrated device for small-town domestic sewage

Abstract

The invention discloses a tower-type ecological purification integrated device for small-town domestic sewage. The tower-type ecological purification integrated device comprises a water storage filtertank, a medium reverse osmosis tank, an amphibious organism reaction system and an aquatic organism reaction system; the amphibious organism reaction system and the aquatic organism reaction system are formed in the mode of being alternately connected from high to low; the amphibious organism reaction system and the aquatic organism reaction system are alternately combined to form a wetting and drying alternation and oxidation-reduction composite environment, and by combining plant intercepting absorbing, biological matrix transformation, exposure to oxygen and enhanced medium adsorbing, a plant-microorganism-animal multistage ecological purification treatment integrated technology and integrated device are formed. Within the small spatial range, efficient purification and standardized discharge of the small-town domestic sewage are realized.

Description

technical field [0001] The invention relates to the technical field of multi-stage ecological purification of domestic sewage, in particular to a tower-type ecological purification integrated device for domestic sewage in small towns. Background technique [0002] With the acceleration of rural urbanization and the increasing demand for water consumption, the amount of sewage discharge continues to increase. The use of traditional septic tanks to treat village and town domestic sewage can no longer meet the requirements of water environment protection; a large amount of kitchen sewage, washing sewage, toilet flushing Wastewater, such as sewage and flushing water from small-scale breeding factories, are directly discharged into the soil, rivers and lakes; while domestic sewage pollutants in villages and towns have complex components, high concentrations of organic matter, and a certain amount of nitrogen and phosphorus. Some domestic sewage may contain heavy metals and Toxic ...

AI Technical Summary

Problems solved by technology

The constructed wetland system mainly uses the substrate, plant roots and surrounding microorganisms to purify sewage through physical adsorption, chemical action and microbial combination; the stabilization pond uses solar energy as the initial energy, and through the material migration, transformation and energy transfer of multiple food chains, the pond Organic pollutants are degraded and transformed, and resources are recovered; the underground infiltration system mainly removes pollutants through physical retention and adsorption, chemical precipitation and biodegradation. These technologies combine sewage treatment with ecological engineering and overcome biochemical treatment technologies (contact oxidation) , SBR, etc.) have the disadvantages of high operating costs and complicated maintenance and management, but there are the following problems: 1. The area is large and the construction cost is high, especially in underdeveloped mountainous areas, where the landform is dominated by hills, and it is difficult to find suitable sewage for construction. Large-scale flat land of the treatment system; 2. Vulnerable to diseases and insect pests and restricted by climate and other conditions, biological methods that use plant interception and absorption as an important means of sewage treatment are vulnerable to plant diseases and insect pests, and in winter, due to the low temperature, there are problems of plant overwintering and microbial metabolism Slowness and other problems lead to the disadvantage of unstable effluent quality; 3. The ecological purification technology has secondary pollution and blockage problems, and the later maintenance and management are difficult and irregular

[0004] Therefore, in view of the shortcomings of the existing technology, such as susceptibility to diseases and insect pests and conditions, high construction costs and operation management costs, unstable effluent quality, and short maintenance time, especially in underdeveloped mountainous areas, the landform is dominated by hills. It is difficult to find a large area of ​​flat land suitable for the construction of a sewage treatment system; and it is difficult to apply the ecological purification system constructed by using natural drainage ditches in some villages and towns with low terrain and short drainage ditches. A small town domestic sewage tower-type ecological purification integrated device

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