[0005] 2. Pressurized permeable cotton filtration (common methods: external filter cartridge, external filter, underwater all-in-one simple suction filter, etc.): Its advantages are superior to water pressure permeation / self-flowing water passing efficiency and filtration capacity , not easy to clog, its disadvantages are high cost, poor sealing of the filter cotton edge, due to the space limitation in the equipment and the limitation of multi-functional design requirements, the number of layers is still insufficient and the material selection is limited, the physical filtration area cannot be expanded, occupying The space outside the cylinder / pool, the head is wasted, it is difficult to clean, and it is easy to damage the sealing of the equipment, and the power consumption efficiency ratio is relatively poor
[0006] 3. Pressurized cotton-free filtration (separation methods such as scraping and water film penetration after filtering through a fine-mesh metal mesh, and then equipped with sterilizing lamp equipment): its advantage is that the effect is better than that of pressurized permeable cotton filtration, and it is not easy to block , long life, no-cleaning for a long time, its disadvantages are high cost, expensive consumables and cannot use commonly used materials in the market, occupying space outside the tank / pool, waste of lift, high power consumption, short life of the sterilization lamp and closed It is impossible to observe whether it is normal in the state
[0007] 4. Adsorption filtration (floccules are formed by the adsorption of harmful substances in water by drugs, and separation methods such as micropore blocking or precipitation): its advantage is that the effect is better than other physical filtration methods, and the physical filtration effect is more thorough. The disadvantage is that the drug belongs to Disposable products, high cost, and require action time and large footprint
[0010] 2. Independent biochemical material filtration chamber system (among them, osmotic, water-passing and rain-drenching types are the most widely used): its advantages are simple equipment, and it has the ability to initially cultivate beneficial bacteria and deal with ammonia nitrogen residues; its disadvantages are The function is single, the ability to cultivate beneficial bacteria and deal with ammonia nitrogen residues is low, and there is still obvious fishy smell
[0011] 3. Independent anti-gas lift biochemical material system (combined with ordinary aerator + trachea + air stone + biochemical material warehouse): its advantage is that the equipment is simple, and it improves the cultivation of beneficial bacteria compared with the independent biochemical material filter warehouse system And the ability to deal with ammonia nitrogen residues; its disadvantages are that it can only be used alone, the water flow is small, the bubbles are large, and the bubbles stay underwater for a short time.
[0012] 4. Independent ultra-micro-bubble gas-lift separation system (using high-pressure variable-diameter water flow to impact the air): its advantages are that the bubbles are less than or equal to 50 microns, the bubbles stay underwater for a long time, and the free oxygen decomposes strongly, which can remove ammonia nitrogen residues in the water The material is brought to the water surface to form a dirty water film, and then the dirty water film is separated by the top overflow method, which has super strong ammonia nitrogen treatment capacity and no fishy smell; its disadvantages are high price, high power consumption, complicated equipment, and no beneficial bacteria. To cultivate the ability, it needs to be matched with other biochemical filtration systems
[0013] 5. Electrolytic degradation system (the latest type with oxygen function): Its advantages are strong decomposition and cultivation ability, directional cultivation or treatment of harmful substances, and certain oxygenation ability; its disadvantages are large investment in equipment, high price of consumables, Less free oxygen, fewer users
[0014] 6. Sedimentation and decomposition system (sedimentation and decomposition tank type, optional hanging water purification filter material, widely used in drinking tap water treatment, high-end ornamental fish and high-end aquaculture): its advantage is perfect water purification function, through the ultraviolet light in the sun to sterilize , the technology is mature; its disadvantages are large land occupation, high investment cost, no aeration function, no ability to cultivate beneficial bacteria, and it needs to be used in conjunction with an aerator and a biochemical culture pool
[0015] 7. Strain supplementation or chemical drug adjustment (adding specific strains of bacteria liquid or chemicals): its advantages are quick effect, clear purpose and effect; its disadvantage is that the effect is not long-lasting, and it is easy to cause water quality mutations
[0016] 8. Fluidized bed system (imitating river scouring): Its advantages are that the old bacterial film will automatically fall off and replace, the filter material has a long service life, and the maintenance interval is long; its disadvantages are that it takes up a lot of space, is noisy, and takes a long time to act