Environment-friendly device for purifying air through indoor active water filtration and removing formaldehyde through biological decomposition

Abstract

According to the invention, a bioactive water source is introduced into a room through a household fish tank culture device which can be accepted by people, and is used as a circulating liquid and liquid storage device necessary for a packed tower purification technology, so that the packed tower biological water circulation purification of indoor air becomes possible, and particularly, feasibility is developed for removing formaldehyde harm; the invention discloses a novel indoor air purification method with high efficiency and high purification capacity. In other words, the fish tank is used for culturing, and a biological method for decomposing formaldehyde and purifying air by bacteria in the nature is introduced into a room for purifying indoor air. The fish tank culture ensures the long-lasting biological freshness and the non-decline purification capability of the circulating liquid, and meanwhile, in the purification process of the packed tower, oxygen required by fish and microorganisms is increased for the culture biological water while the air is purified through good gas-liquid contact. And compared with an activated carbon filter screen air purification technology, the air purifier has the advantages of constant efficiency, no secondary pollution, no filter screen replacement cost, air humidification effect and the like.

Description

Technical Field

[0001] The invention relates to an indoor active water filter for purifying air and a biological decomposition and removal of formaldehyde environmental protection device, belonging to the technical field of aquaculture and indoor environmental protection. Background Art

[0002] It is an indisputable fact that the concentration of indoor air pollutants is several times higher than that of outdoor air. Removing indoor formaldehyde and various harmful gases and bacteria-carrying aerosols and other pollutants to improve indoor air quality has become one of the hot spots of indoor environmental protection.

[0003] Indoor air purifier technology is mainly based on filters. HEPA and activated carbon filter air purifiers are currently the mainstream products. Activated carbon filters have a short service life. The efficiency of active filters decays from activation to saturation. They are prone to secondary pollution and require frequent replacement and high costs.

[0004] The upper atmosphere contributes 90% of the total formaldehyde in the environment, and humans produce 10% of the total formaldehyde. The reason why there is no accumulation of formaldehyde in the atmosphere is that formaldehyde is decomposed by sunlight and bacteria in water and soil within a few hours (see Wikipedia). In the atmospheric biosphere, the activated sludge bacteria that decompose and purify formaldehyde also exist in indoor fish tanks. The nitrifying bacteria in the tank form a mutually beneficial symbiotic relationship with aquatic animals, so there is a saying that "the water is too clear without fish". Nitrifying bacteria can decompose the low concentration of formaldehyde in the water of fish tanks within a few hours.

[0005] In the gas purification and refining process technology, the long-standing packed tower purification process technology is widely used in industrial production and factory waste gas emission purification. It uses a small amount of liquid to circulate and absorb the purified gas, has high gas purification efficiency, absorbs a wide range of impurities, dissolves and absorbs organic gases such as formaldehyde, wets and dissolves and purifies dust and haze particles, and is similar to the natural purification process of rainwater purifying fresh air. It is one of the most environmentally friendly purification technologies. Summary of the invention

[0006] Indoor active water filtration purifies the air, and the environmental protection device for biological decomposition and removal of formaldehyde uses aquarium water as the biological circulation purification liquid in the packing tower system. The water filter absorbs formaldehyde and other air pollutants from the air, and then the nitrifying bacteria in the aquaculture water decompose and absorb the pollutants that enter the liquid water body. Through the two steps of water filtration absorption and purification of air and microorganisms in the fish tank to decompose pollutants, the aquaculture water system microorganisms are used to purify formaldehyde and other pollutants in the indoor air and protect the indoor environment.

[0007] The core of the present invention is to introduce biologically active water sources into the room through a household fish tank breeding device that people can accept, and use it as the purified liquid phase circulating water required for the packing tower purification technology. The fish tank also has the function of a liquid phase circulating water storage tank in the purification system, realizing a new method of using biologically active breeding water through packing purification technology to purify indoor air pollution, especially opening up a feasible new biotechnology path for removing formaldehyde hazards. In other words, the present invention uses fish tank breeding to introduce the biological method of bacteria decomposing formaldehyde and purifying air in nature into the room to purify indoor air, and the continuity of fish tank breeding ensures that the circulating liquid is long-lasting and the purification ability does not decline.

[0008] In the device of the present invention, the fish tank is not only an aquarium breeding box where fish and microorganisms mutually benefit and coexist, but also a circulating liquid storage tank of the air purification system. The air purification system is placed in the bottom cabinet of the breeding box, and the air purification function is integrated into the aquarium breeding oxygenation system, so as to simulate the biological self-purification process in nature to purify the indoor air. It has the advantages of one device for multiple uses and saving indoor space. The active water filter filler layer is not only a water filter air purification layer, but also a bacteria house and oxygenator in the fish tank system. The filler layer provides air-liquid contact to purify the air while fully oxygenating the aquarium breeding system. By imitating the mutually beneficial symbiotic relationship of organisms, a new environmental protection device for mutually beneficial symbiosis between landscape fish tank and air purification is invented. The advantages are: the breeding technical requirements of "raising water first for fish breeding, and raising bacteria first for water breeding" in indoor fish tank breeding are followed, which ensures that the packing tower purification process integrated into the fish tank breeding system has an inexhaustible biological active purification capacity. It takes the ecological balance of the mutualistic symbiosis of fish and bacteria in the fish tank and uses it for indoor air pollution purification. The fish tank breeding is endless and the purification activity is endless.

[0009] In the process of removing the harm of excessive formaldehyde in indoor environment, the present invention will open up a broad new use for the landscape fish tank industry with a long history, and also add a new biotechnology method of imitating natural ecological purification to the current indoor air purification technology. Compared with the activated carbon filter purification technology, the biological water filtration air purification technology described in the present invention has the advantages of long-lasting and constant purification efficiency, clean and thorough, no filter saturation, secondary pollution and regular replacement cost of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In the drawings of the specification, dotted arrows indicate air flow paths, and solid arrows indicate water flow paths.

[0011] 1 fish tank 2 water spray pipe 3 fan 4 microbial active filler layer 5 filler support sieve plate 6 bottom water tank 7 venturi air inlet pipe 8 circulation pump 9 air inlet window 10 fish tank inlet and outlet pipe

[0012] The fish tank 1 is installed on the bottom cabinet of the fish tank, and the air purification system is installed inside the bottom cabinet. The water from the water outlet pipe of the fish tank 1 flows into the venturi tube 7 and the water spray pipe 2 respectively, and is sprayed on the venturi tube 7 and the microbial active packing layer 4 of the packing tower. After the water contacts with the air in the venturi tube 7 and the microbial active packing layer 4, it flows into the bottom water tank 6 and flows back to the fish tank 1 through the circulating water pump 8. The air enters the venturi tube 7 from the room through the air inlet window 9, and after being rinsed with water, enters the microbial active packing layer 4 and is then absorbed and purified by the water filter, and then sent out by the induced fan 3. Attached Figure 1 Brief description: Indoor active water filter purifies the air, biological decomposition removes formaldehyde environmentally friendly device. DETAILED DESCRIPTION

[0013] Choose a landscape fish tank with a base cabinet as the biologically active water source. According to the internal space size of the base cabinet, make a packing tower air purification system inside the base cabinet. Use a circulating pump to circulate between the fish tank and the packing tower air purification system. Think of the fish tank as the biologically active water source supply tank of the air purification system, and the air purification system as an oxygenator for the breeding system.

Claims

1. Indoor active water filter to purify air, biological decomposition to remove formaldehyde environmental protection device, including aquarium fish tank system and packing tower gas purification system, the characteristics are: The fish farming part is installed on the bottom cabinet of the fish tank, and the air purification system part is installed in the bottom cabinet. The water outlet pipe at the bottom of the fish tank is connected to the water inlet of the venturi tube and the water spray pipe in the packing tower. The spray pipe is installed above the microbial active packing layer, and the microbial active packing layer is installed on the packing support sieve plate in the tower. The sieve plate is installed at the bottom of the tower body. The tower body and the venturi air inlet pipe are installed on the bottom water tank cover plate. A circulating water pump is installed in the bottom water tank. The circulating water pump outlet pipe enters the fish tank. The air outlet of the air purification system is installed with an induced draft fan, which is characterized in that the induced draft fan is installed on the air inlet of the venturi tube when used as a supply fan, and its function is the same; the process of operating the indoor active water filter to purify the air and the biological decomposition and removal of formaldehyde environmental protection device is that the fish tank The aquaculture water is sprayed into the Venturi air inlet pipe and the top of the packing layer, and the air entering the air purification system is eluted in the Venturi tube. After the air is initially sprayed, washed and purified, it continues to enter the microbial packing layer and meets the water sprayed into the packing layer from the top of the packing layer. The dust and haze in the gas phase are moistened, dissolved and separated by sedimentation and purified. Organic air pollutants such as formaldehyde that are easily soluble in water are dissolved, absorbed and purified by water. The air purified by the water filter leaves from the top of the packing layer and is drawn out of the purification system by the induced draft fan. The air pollutants absorbed by the water enter the water and pass through the circulating water pump. In the process of the aquaculture water circulating through the packing layer and the Venturi tube, the microbial bacteria oxidize and decompose the harmful air pollutants such as formaldehyde in the water under the action of oxygen, turning them into harmless substances, completing the biological purification of pollutants such as formaldehyde, and maintaining the ecological balance of the aquaculture water system.

2. In the indoor active water filter air purification and biological decomposition and formaldehyde removal environmental protection device according to claim 1, the fish tank part is characterized by: By replacing the breeding water in the fish tank with air disinfectant, the breeding function of the fish tank disappears, and the fish tank is changed into a disinfectant supply container. The indoor active water filter purifies the air, and the environmentally friendly device for biologically decomposing and removing formaldehyde becomes an air disinfection device.

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