A biological rope and a multifunctional ecological floating island device using the biological rope

Abstract

The invention discloses a biological rope and a multifunctional ecological floating island device applying the same. The biological rope is provided with a belt-shaped rope body which extends according to a cylindrical spiral line, wherein the pore diameter of a cylindrical pore cavity enclosed by the belt-shaped rope body is between 5 mm and 10 mm; the width of a belt-shaped gap formed by the belt-shaped rope body is between 5 mm and 10 mm. The multifunctional ecological floating island device consists of an island body system, an aerating and oxygen-increasing control system and a microbial film structure system. The biological rope provided by the invention is favorable for sequential attachment and fixation of microorganisms and can form a high-efficiency biological film three-layer structure easily. Furthermore, compared with the existing biological rope, the biological rope has a larger internal anoxic area for attachment of anaerobic microorganisms, is more favorable for pollutants and organisms to enter the internal anoxic area, and improves the degradation efficiency of the pollutants and the organisms in water.

Description

technical field [0001] The invention relates to a biological rope and a multifunctional ecological floating island device using the biological rope, belonging to the technical field of water quality purification of rivers and lakes in ecological environment restoration and management. Background technique [0002] In recent years, with the rapid growth of my country's social economy, the discharge of industrial wastewater, domestic sewage and other pollution has exceeded the standard, and a large number of organic pollutants have entered the water body, resulting in excessively high levels of nutrients such as nitrogen and phosphorus in the water body, exceeding the purification capacity of the water body itself. It is very easy to cause algal blooms and destroy the original water ecosystem. At the same time, the imbalance of water ecology will easily lead to the decrease of dissolved oxygen in the water body, resulting in the continuous accumulation of organic pollutants in ...

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Problems solved by technology

For example, the utility model patent with the publication number CN201981060U discloses a device for purifying eutrophic water with a solar biological floating bed, which describes a device that uses solar energy as a power source. The device only increases dissolved oxygen in the water, but cannot effectively reduce eutrophication. Pollutants such as nitrogen, phosphorus, and refractory organic matter in degraded water bodies; the utility model patent with the publication number CN203238143U discloses an integrated device for enhanced purification of river and lake water quality, which describes the use of wind-solar complementary aeration for dissolved oxygen in water bodies, but this The method is easily affected by weather and climate changes, and there is a problem of unstable power supply. At the same time, the wind power device and solar panels are installed on the floating island, which greatly increases the carrying capacity of the floating island; the invention patent publication number is CN104030455A A kind of ecological floating island with biofilm reaction function and water treatment method is proposed, which describes a water treatment method using aeration biofilm reaction function, the oxygen supply method is to directly feed oxygen into the biofilm cavity, As a result, the inner layer of the biofilm cannot effectively form an anaerobic environment, which is not conducive to the three-layer structure of the biofilm, that is, the inner layer is anaerobic, the middle layer is facultative, and the outer layer is aerobic, which affects the denitrification of microorganisms, that is, denitrification, and reduces the water quality. Transformation of nitrate and ammonia nitrogen in medium; the invention patent with publication number CN101723555B discloses a photocatalytic oxidation-biological floating bed algae removal device, which describes a floating bed device using photocatalytic oxidation reaction, which can remove algae, sterilize, degrade The effect is good in terms of organic pollutants, etc., but it cannot convert nitrate, ammonia nitrogen, etc. into nitrogen, and cannot effectively reduce the total nitrogen content in water. At the same time, the photocatalytic reaction is easily affected by changes in the weather environment.

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