Water quality purification microorganism ecological unit, water quality purification microorganism ecological system and method of water quality purification microorganism ecological system

Abstract

The embodiment of the invention discloses a water quality purification microorganism ecological unit. The water quality purification microorganism ecological unit comprises a frame, a water inlet anda water outlet are respectively formed in the outer wall surface of the bottom end of the frame, and the frame is internally provided with a filtering material layer and a water outlet pipeline; the frame is divided into a first accommodating cavity and a second accommodating cavity by the filtering material layer from top to bottom, the water outlet pipeline is provided with a water inlet end anda water outlet end, and the water inlet end is located in the first accommodating cavity; the water inlet end relative to the horizontal plane height is lower than the top end of the frame relative to the horizontal plane height, the water outlet end is communicated with the water outlet, and the second accommodating cavity is communicated with the water inlet; the filtering material layer is formed by piling of several volcanic ash soil particles, and VBNC strains used for removing nitrogen and phosphorus are implanted in the volcanic ash soil particles. heterotrophism denitrifying phosphate-accumulating bacteria groups are implanted in the volcanic ash soil particles, the activation of local function microorganisms is improved and adjusted, stable dominant bacterial groups are formed, and the purpose of improving the effect of purifying water quality is achieved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of water treatment, in particular to a water purification microbial ecological unit, a water purification microbial ecosystem and methods thereof. Background technique [0002] Water is the source of life, and about 70% of the human body is made up of water. Therefore, the purification of polluted water bodies and the restoration of the natural ecological environment have far-reaching significance in the present and future. The causes of water body eutrophication mainly come from exogenous and endogenous pollution. The former includes domestic sewage rich in nitrogen and phosphorus nutrients from industry and agriculture, cities, towns, and rural areas, and road surface runoff enters waters including rural entrance ponds, rivers and lakes. The latter The main reason is that eutrophication leads to the outbreak of phytoplankton algae, and the remains of eutrophic animals and plants a...

AI Technical Summary

Problems solved by technology

At present, the main measures for the treatment of eutrophic water bodies are as follows: first, use physical treatment methods, including environmental remediation, sewage discharge pipes, rainwater diversion, sediment dredging, introduction of clean water sources for dilution, and enhanced oxygen-increasing aeration, etc., to achieve temporary or Slow natural purification effect, but practice shows that purely physical methods cannot effectively solve the problem of water purification of eutrophic water bodies

The second is to use biological treatment methods of animals and plants. At present, the main methods of biological treatment methods include: the first is to install water pumps to make the water body flow and circulation enhance dissolved oxygen in water to improve the efficiency of aerobic bacteria water purification, but use water pumps to improve water cycle aeration and oxygenation, While consuming energy, it is not filtered through microbial carriers, and a large number of microorganisms in the VBNC state that cannot function are difficult to achieve comprehensive effects; the second is to introduce nitrification and denitrification bacteria to adjust the composition of microorganisms in the water to enhance the purification effect of denitrification and phosphorus removal, but the introduction of foreign bacteria The species are directly put into the water area, because there is no carrier for stable habitat and the lack of compatibility with the local indigenous microbial population, it is difficult to form a dominant flora and gradually degrade and die out, and cannot achieve stable and sustainable effects; the third is to plant landscape plants, including Direct planting of aquatic plants and captive plants based on artificial floating islands absorb nitrogen and phosphorus nutrients and improve dissolved oxygen in water to achieve a certain water quality purification effect, but a large number of captive artificial floating island plants are likely to cause secondary pollution, and the cost of seasonal planting and removal of plant remains is high ; Fourth, algae-eating insects artificially bred during cyanobacteria outbreaks have obvious sensory effects of clean water, but cannot regulate water quality. Studies have shown that due to cyanobacteria outbreaks, protein-rich organic matter remains accumulate in the bottom mud of the water area, and anaerobic fermentation produces a large amount of water. Toxic H 2 S, the overwintering eggs of algae-eating insects that usually sink in the bottom mud, once they come into contact with the toxic substances in the bottom mud of the water area H 2 S. The eggs die directly or the larvae are poisoned and die after hatching, and the population gradually dies out, eventually leading to the break of the ecological food chain

Although the current biological treatment methods for eutrophic water bodies have realized that adding algae-eating insects can reduce the total amount of cyanobacteria cells and improve the sensory effect of water transparency, but ① the algae-eating insects still face the danger of not being able to survive the winter safely. The population base is difficult to maintain, and the symptoms are not cured; ②Although the total number of cyanobacteria cells is reduced, the water quality cannot be effectively controlled, and a sustainable ecological food chain relationship cannot be formed

Moreover, the current methods are all scattered purification methods, which are not ideal for flowing waters, and the effect for non-flowing waters is also extremely slow. It usually takes more than 2 years and continuous addition of foreign microorganisms to maintain a certain effect, which cannot be achieved. Continuous water purification purpose

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