Exhibitor List
| Company | BEIJING QFT ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD |
| Country | China |
| Products | Biochemical processes Plants |
| Hall | N2 |
| Booth | F36 |
| Website | www.bjqft.com/ |
| Introduction | Qifantian Environmental protection is a professional engaged in environmental technology research and development, process design, environmental protection equipment manufacturing, engineering construction and operation services in one of the group enterprises. Founded in 2005, the company has the qualification of general contracting of municipal public works and professional contracting of environmental protection works. It is a national high-tech enterprise. Provide one-stop sewage treatment solutions for municipal, industrial and village sewage. |
Products
| Special filter head for integrated filter plate of BAF The technical advantages of Qi Fangtian's patented product "filter head for biological aerated filter process (patent number: ZL 2018 2 2169553.6)" I. The special filter head of the integral filter plate can be disassembled and maintained from the lower part, which saves labor and is quick. Ii. The embedded seat of the link between the filter head and the filter plate is square, which is more stable in the construction process. III. The special filter head for the integral filter plate is six-prism type, compression and impact resistance, easy installation and strength enhancement. |
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| Long handle filter head for BAF split filter plate The filter head is composed of a filter rod, a filter cap, a sleeve and a rubber pad. Filter head material: filter head, filter rod, sleeve for ABS(food grade), the proportion of not less than 1.04g/cm3;Rubber pad for butadiene rubber (NBR). The filter head is suitable for air or water backwashing and gas-water backwashing at the same time;Air impact strength 13 ~ 17L/S·m2;Water punching strength 3 ~ 6L/S·m2;The operating temperature is not more than 50℃. The sleeve of the filter head shall be vertically buried in the filter plate, and the spacing error shall not be greater than ±1.0mm. The inner diameter of the filter rod is 17mm;The total length of the filter rod and the filter cap is 300 ~ 400 mm. The gap of each filter head should be evenly arranged. The total area of the filter joint should not be less than 2.5cm2. The filter head should be easily installed and removed from the sealing ring or sleeve. It should be ensured that no matter the water flows from the top of the filter plate or from the bottom direction, it can only pass through the gap of the filter head and cannot leak from the sealing ring or other parts of the filter head. Filter head gap to ensure uniform and no defects such as incomplete and burr. The surface of the filter head should be smooth, without obvious impurities, cracks, concave and convex, bubbles and other defects that affect the use function, quality and appearance. All filters and accessories should be made of non-toxic and non-toxic materials suitable for drinking water. |
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| V type sand filter sand filter integral filter plate special adjustable long handle filter head My company specializing in the production of various specifications of filter head, on the basis of traditional craft in the past, according to the experience of engineering practice, and traditional filter head of some of the problems in the application, I company for the appropriate improvement, using imported ABS engineering plastics manufacturing, high pressure intensity, on touch is not broken, strengthen the thread in the filter head structure, add rubber gasket, firm connection, don't fall off.The base of the filter cap is designed to strengthen the bottom joint, so that there is no dead water area and no mud deposit between it and the filter plate.Widely used in biological filter, V-shaped filter, sand filter, can be matched with the production of various specifications of the filter plate, filter plate or integral casting filter plate can be realized. 1) The technical advantages of the adjustable long handle filter head for the integral filter plate I. The special filter head of the integral filter plate can be disassembled and maintained from the lower part, which saves labor and is quick. Ii. The embedded seat of the link between the filter head and the filter plate is square, which is more stable in the construction process. |
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| V-type sand filter sand filter split filter plate special long handle filter head The filter head is composed of a filter rod, a filter cap, a sleeve and a rubber pad. Filter head material: filter head, filter rod, sleeve for ABS(food grade), the proportion of not less than 1.04g/cm3;Rubber pad for butadiene rubber (NBR). The filter head is suitable for air or water backwashing and gas-water backwashing at the same time;Air impact strength 13 ~ 17L/S·m2;Water punching strength 3 ~ 6L/S·m2;The operating temperature is not more than 50℃. The sleeve of the filter head shall be vertically buried in the filter plate, and the spacing error shall not be greater than ±1.0mm. The inner diameter of the filter rod is 17mm;The total length of the filter rod and the filter cap is 300 ~ 400 mm. The gap of each filter head should be evenly arranged. The total area of the filter joint should not be less than 2.5cm2. The filter head should be easily installed and removed from the sealing ring or sleeve. It should be ensured that no matter the water flows from the top of the filter plate or from the bottom direction, it can only pass through the gap of the filter head and cannot leak from the sealing ring or other parts of the filter head. Filter head gap to ensure uniform and no defects such as incomplete and burr. The surface of the filter head should be smooth, without obvious impurities, cracks, concave and convex, bubbles and other defects that affect the use function, quality and appearance. All filters and accessories should be made of non-toxic and non-toxic materials suitable for drinking water. |
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| The filter plate 1. Qi Fangtian integral pouring filter plate has two advantages: 1) The template for the integrated filter plate is our patented product (patent number: ZL 2018 3 0745664.X), with high quality and strength of the square hole design; 2) The template area produced by our company is large, one template is about one square meter, which is conducive to the construction speed; 2. Technical description of integral filter plate Filter plate is an essential part of all kinds of filter equipment, fission and the overall filter plate each have advantages, can choose according to user needs, my company by buying filter plate to now sell filter plate, is through long-term practice process, has carried on the strict checks in every respect, on the choice of reinforcement, firmly embedded parts, choose the material of seal on a more scientific, The adjustable long handle filter head of the whole pouring filter plate is made of new imported ABS engineering plastics and modified PP. The shape of the filter head is enhanced hexagonal tower, which has high compressive strength and strengthens the compression resistance and blocking resistance of the filter head.Set up the flow line structure blocking cap, the outer spiral connection, not easy to fall off, easy to replace.The base of the filter cap is designed to strengthen the bottom seam, which has the advantages of no dead water area and no mud collection between the filter plate and the filter cap. Before the supply of the filter plate, the company will accurately measure the filter beam on the filter tank one by one and then make it.The filter beam and filter plate are reinforced concrete members with the strength of reinforced concrete not less than C30.Reinforced by Ⅰ level or Ⅱ level.The strength of the filter plate and all its pre-embedded connectors shall meet the requirements of all operating conditions. |
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| Fission filter plate Before the supply of the filter plate, the company will accurately measure the size of the filter tank and then make it.The filter beam and filter plate are reinforced concrete members with the strength of reinforced concrete not less than C30.Reinforced by Ⅰ level or Ⅱ level.The strength of the filter plate and all its pre-embedded connectors shall meet the requirements of all operating conditions. Perimeter of the filter plate, the thickness of the filter plate allowable deviation ±1.0mm, the flatness of the filter plate allowable deviation ±0.5mm. Allowable deviation of height, thickness and length of filter beam is ±1.0mm.The external dimensions of the filter beam can be used by each manufacturer according to experience, which is different from the above values, but must be consistent with the civil engineering embedded conditions. The contractor shall supply the embedded components (ABS) of the filter heads within the filter plates, the sealing fillers between the bottom plates (903 glue or other approved materials) and the special tools used to secure the bottom plate connectors, accessories and all the special tools used to install the filter heads and the filter plates.All fillers should be suitable for drinking water, non-toxic, no side effects.Chloroprene rubber or equivalent material should be used as filler. The bolts and nuts used for the installation of the filter plate are stainless steel AISI304. All the parts used for the filter plate shall be able to withstand the pressure applied under various working conditions. |
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| Single hole membrane aerator 1. Technical advantages of single-hole membrane aerator The single-hole membrane aerator produced by Qi Fangtian has two advantages: 1) Our company uses high-quality imported EPDM materials to produce the film with high strength, good elasticity, oxidation resistance and corrosion resistance, with a life span of more than 10 years; 2) The shell of aerator is produced by our company with professional mould opening, and the quality is guaranteed. 2. Technical description of single hole membrane aerator Single-hole membrane aerator is the oxygen aeration biological filter air diffuser, in ordinary biological filter, microbial self-storage need to provide the oxygen is usually at the bottom of the filter is equipped with vent oxygen to rely on natural ventilation, as a result of natural oxygen easy result in uneven pressure of gas supply in the operation of the whole filter height, easy forming channel flow or short flow, at the same time in the filter is easy to form bubbles, causing local air blocking phenomenon;And natural ventilation of oxygen condition quality subject to pool temperature and the temperature difference between the void ratio, height of filter, filter, and the wind, can't give single-hole membrane filter aerator is a new market similar products apply common biological filter aeration equipment, and experiencing the process of severs to easy to distinguish from the shape has two kinds, one is a saddle type aerator, is a kind of cassette aerator, use effect is the same, just easier installation of aerator, easy to replace, favored by users.The advantages are as follows: Ensure the pressure strength and stability of the pipeline system, can bear the pressure of a certain height of heavy filter material;The aeration system installed is smooth and smooth inside the pipe wall, which can effectively reduce the air resistance of the pipe system.Installation is simple and quick; The main components are: air diffuser is used in the filter tank to provide oxygen to the microorganisms attached to the filter material.Each set of diffuser is composed of upper/lower tube clamp, left and right fixing ring and rubber diaphragm. After assembly, the single-hole membrane aerator is installed on the filter plate under the biofilter material and protected with pebble supporting material.It has the characteristics of small bubble diameter, large bubble distribution range, not easy to be blocked by debris, not afraid of the filter material heap pressure.Diaphragm work do not have to worry about the heap pressure of the filter material and affect its free expansion, can safely provide oxygen to the microorganisms attached to the filter material, its operation mode can be continuous operation or intermittent operation. |
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| IBAF integrated intelligent sewage treatment equipment IBAF integrated intelligent sewage treatment equipment is a professional portable integrated water treatment equipment developed by the company according to the current situation of water ecological environment. The equipment takes the biological aerated filter (BAF) process as the core, integrates the biofilm purification function and the filter function into one device, completes the biological treatment of sewage (carbon oxidation, nitrification, denitrification) and the removal of suspended matter under aerobic or anoxic conditions, has the effect of removing ammonia nitrogen, total nitrogen, COD, BOD, total phosphorus, SS and other pollutants. It can realize carbonization, nitrification and denitrification. The equipment can be used in industrial wastewater, domestic sewage, emergency small river and lake water environment treatment fields. The effluent quality is better than the grade-A standard of Pollutant Discharge Standard for Urban Sewage Treatment Plant (GB18918-2002), and the equipment upgrading and configuration can meet the quasi-Class IV standard of Surface Water Environmental Quality Standard (GB3838-2002). Equipment features: 1, wide use, high degree of specialization, according to the water quality and quantity of flexible setting; 2, standard size, modular structure, fast transportation and installation, convenient movement, military and civilian dual-use 3, full automatic control, can realize remote monitoring, remote operation management; 4, special water and gas distribution system high efficiency, low energy consumption, low cost of construction and operation management; 5, unique and efficient biological filter material, large specific surface area, high strength, long service life; 6, can be customized according to user needs. |
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| activated carbon filter 1, an overview of the Activated carbon can be applied to reduce organic matter in water, toxic substances or improve color, odor, taste and other sensory indicators, therefore, widely used in a variety of water treatment fields.Common activated carbon adsorption process or ozone - biological activated carbon treatment process. Activated carbon filter mostly uses granular activated carbon, which is a fixed bed method, and can also be called granular activated carbon filter. The structure form and process selection of activated carbon filter should be determined according to its use, treatment scale and operating conditions as well as technical and economic conditions. At present, activated carbon filter is widely used in micro pollution water supply treatment, sewage treatment and other municipal and industrial fields. 2. Process characteristics (1) According to the function and use, the selected structure forms are varied. (2) According to the characteristics of water quality and treatment requirements, choose the direction of water flow. (3) according to the characteristics of activated carbon products and the actual effect, choose the form of backwashing and washing intensity. 3, our equipment used in activated carbon filter advantage (1) filter head Long handle filter head are our company's patented products, is the combination of traditional filter head and our company a lot of engineering practice experience, and improved production of filter head, practical and targeted, can be selected according to the filter function of special filter head.Using high strength ABS/PP material, suitable for various types of water treatment systems. (2) filter material Volcanic rock filter material produced by our company is especially suitable for various types of filters, meeting the relevant requirements stipulated in "Artificial Ceramsite Filter Material for Water Treatment" (CJ/T 299-2008).The surface of the filter material is rough, the microporous is developed, the pollution intercepting ability is strong, the resistance is small, the strength is large, the chemical and the biological stability is good.The advantages of volcanic rock filter material are as follows: 1) Porous honeycomb surface, small head loss, long backwash interval period; 2) Light bulk density, low power consumption for backwashing and transportation cost saving; 3) Large specific surface area and strong pollution interception capacity; 4) High material strength, long service life; 4. Engineering practice experience Our company has been engaged in all kinds of filter process fields for more than 10 years, and has rich experience in construction and site commissioning. Moreover, we can provide more professional and targeted technical services for all kinds of complex water quality and combination process. |
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| Sulfur autotrophic/heterotrophic synchronous denitrification biological filter (SAHD） The tail water of municipal sewage treatment plants is an important unconventional water resource, but its relatively high nutrient level can easily lead to eutrophication of the receiving water body. In response to the high nitrate nitrogen content and low carbon to nitrogen ratio in the external drainage of municipal sewage treatment plants, as well as the high cost of carbon source addition in the current operation and maintenance situation, the denitrification biofilter process technology has received a lot of attention from scientific researchers in the context of the "dual carbon" goal, and the feasibility of its technology has been confirmed by multiple parties. As a professional domestic supplier of biofilter manufacturing, our company has conducted extensive research on denitrification processes and summarized the technical characteristics, performance parameters, and application effects of denitrification biofilter processes in practice. Fully promote and apply the denitrification biofilter process. |
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| Sulfur autotrophic enhanced artificial wetland Artificial wetlands are wastewater treatment processes that developed in the 1970s and 1980s. Artificial wetlands are a complex of floating or submerged plants, as well as substrate layers and organisms in a saturated state of treated water, that purify wastewater through a series of biological, physical, and chemical processes. The traditional wetland substrate uses soil, sand, gravel, etc. With the continuous development and updating of water treatment technology, as well as the continuous improvement of effluent quality under the dual carbon background, the new era of artificial wetland technology has been improved. The technology of sulfur self oxygenation enhanced artificial wetland has emerged, using sulfur self oxygenation composite fillers as carriers. The total nitrogen removal rate is high, and the effluent can reach four types of surface water bodies. Our company has cooperated with multiple scientific research institutions and has been used in practical engineering. Strengthening artificial wetlands is an important guarantee for environmental and ecological balance, as well as an important technological link for the discharge of wastewater from sewage treatment plants to enter a high-quality water environment. It plays an important role in further reducing pollutants, achieving stable water environment quality standards, and restoring water ecology. |
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| Q型复合生物滤料 Q type composite biological filter material is the independent research and development of Qi Fangtian environmental protection products, the product is the use of high-tech professional process manufacturing into the efficient biological filter material, belongs to the energy saving and low carbon new environmental protection filter material. The product has strong adsorbability and ion exchange ability. The surface composition can produce beneficial ingredients required by complex microorganisms with different functions according to the water quality, so as to achieve the goal of energy saving, consumption reduction and stable operation of the biological filter. (I) Product characteristics 1. Large specific surface area, strong adsorption capacity; 2.high biological activity, fast film hanging speed; 3.good hydrophilicity, large flux, effectively prevent the blockage of biological filter, and prolong the backwash cycle, energy saving and consumption reduction; 4.high strength, wear resistance and shear resistance, long service life; 5.strong applicability, according to the water quality and microbial needs customized composite filter material, to meet the needs of various working conditions. (II) The main scope of applicable technologies in the field of water treatment: 1. aerated biological filter 2.denitrification upflow biological filter 3.deep bed denitrification filter 4.V type filter transformation biological filter 5. multi-media filter (III) Application field: 1.municipal sewage treatment plant to improve the quality and efficiency of 2. industrial refractory wastewater treatment 3.town sewage treatment lasting 4.black and smelly water comprehensive treatment 5. high ammonia nitrogen wastewater treatment |
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| AA0 Process integration equipment The integrated sewage treatment equipment adopts carbon steel box, adopts A2O process, built-in precipitation area, including anaerobic pool, anoxic pool, aerobic pool, above-ground or underground type can be installed, service life is not less than 20 years. The equipment is easy to install, easy to repair, set the necessary manhole, air hole ancillary facilities. Applied in the field of sewage in villages and towns, the effluent reaches Class B discharge standard. A/A/O process (Anaerbio-Anoxic-Oxic) is called anaerobic - anoxic - aerobic process, which combines phosphorus removal, nitrogen removal and degradation of organic matter three biochemical processes, and according to the activated sludge microorganisms in the completion of nitrification, denitrification and biological phosphorus removal in the process of different environmental conditions, Anaerobic zone, anoxic zone and aerobic zone were set respectively. The total hydraulic retention time of this process is less than that of other similar processes. Under the condition of anaerobic, anoxic and aerobic alternating operation, filamentous bacteria can be inhibited and sludge swelling can be overcome. SV1 value is generally less than 100, which is conducive to the separation of treated sewage and sludge. Due to the strict separation of anaerobic, anoxic and aerobic zones, it is conducive to the propagation and growth of different microbial flora, so the effect of nitrogen and phosphorus removal is very good. At present, the law is widely used at home and abroad. Main advantages of A/A/O process: (1) Mature and perfect technology, rich management and operation; (2) Anaerobic (anoxic) aerobic alternating operation, not suitable for filamentous bacteria proliferation, no sludge swelling problem; (3) Automatic operation, but not high requirements for automatic control: appropriate selection of automatic control equipment, can realize the optimal management of the process; (4) Low energy consumption and low operating cost. |
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| SWE smart water integrated set of equipment SWE smart water integrated equipment is aimed at the current situation of water ecology and environment in villages and towns, Qi Fangtian environmental protection independent research and development of a new generation of integrated equipment, low carbon energy saving and high durability is a significant feature. This equipment takes biological filter process as the core, integrates physical, chemical and microbial functions into one water treatment equipment, combines industry-leading automatic control technology and intelligent water operation and maintenance management system to form a system-wide integrated intelligent water equipment. The equipment is suitable for rural areas, towns, resorts, military stations, small rivers and lakes water environment management and small sewage treatment station upgrading. Processing capacity: 50, 100, 200, 500 tons/day. The specifications and dimensions of the integrated equipment can be flexibly designed according to the actual situation. 1. Scope of application The equipment is suitable for village sewage treatment, industrial sewage standard reuse, river and lake sewage biological nitrogen and phosphorus removal and small sewage treatment station treatment. 2. Equipment characteristics The equipment covers A small area, and the effluent reaches the first-class A emission standard. The unique process design ensures the high efficiency and low energy consumption of the system, which can be customized according to the needs of users. The equipment construction and installation is flexible and simple, according to the needs of users and local climate, the production of above-ground, fully underground, semi-underground form, automatic operation, can realize fully automatic control, remote monitoring and management. |
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| IBAF integrated intelligent sewage treatment equipment IBAF integrated intelligent sewage treatment equipment is a professional portable integrated water treatment equipment developed by the company according to the current situation of water ecological environment. The equipment takes the biological aerated filter (BAF) process as the core, integrates the biofilm purification function and the filter function into one device, completes the biological treatment of sewage (carbon oxidation, nitrification, denitrification) and the removal of suspended matter under aerobic or anoxic conditions, has the effect of removing ammonia nitrogen, total nitrogen, COD, BOD, total phosphorus, SS and other pollutants. It can realize carbonization, nitrification and denitrification. The equipment can be used in industrial wastewater, domestic sewage, emergency small river and lake water environment treatment fields. The effluent quality is better than the grade-A standard of Pollutant Discharge Standard for Urban Sewage Treatment Plant (GB18918-2002), and the equipment upgrading and configuration can meet the quasi-Class IV standard of Surface Water Environmental Quality Standard (GB3838-2002). Equipment features: 1, wide use, high degree of specialization, according to the water quality and quantity of flexible setting; 2, standard size, modular structure, fast transportation and installation, convenient movement, military and civilian dual-use 3, full automatic control, can realize remote monitoring, remote operation management; 4, special water and gas distribution system high efficiency, low energy consumption, low cost of construction and operation management; 5, unique and efficient biological filter material, large specific surface area, high strength, long service life; 6, can be customized according to user needs. |
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| Biological Aerated Filter (Nitrification/Denitrification) The tail water of municipal sewage treatment plants is an important unconventional water resource, but its relatively high nutrient level can easily lead to eutrophication of the receiving water body. In response to the high nitrate nitrogen content and low carbon to nitrogen ratio in the external drainage of municipal sewage treatment plants, as well as the high cost of carbon source addition in the current operation and maintenance situation, the denitrification biofilter process technology has received a lot of attention from scientific researchers in the context of the "dual carbon" goal, and the feasibility of its technology has been confirmed by multiple parties. As a professional domestic supplier of biofilter manufacturing, our company has conducted extensive research on denitrification processes and summarized the technical characteristics, performance parameters, and application effects of denitrification biofilter processes in practice. Fully promote and apply the denitrification biofilter process. |
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| V-type filter 1, an overview of the V-type filter is a kind of gravity type fast filter filter with uniform particle size of filter material. In recent years, it has been widely used in China and is suitable for large and medium-sized water plants. 2. Process characteristics (1) Constant head constant velocity filtration (2) The filter layer has a large amount of pollution interception (3) no material running phenomenon, no hydraulic classification phenomenon (4) good flushing effect, saving flushing water (5) even distribution of water and air 3. Structure form and process flow V-type filter layout on the whole can be used in a single row or double row layout, in terms of a single pool, can be divided into single or double grid layout, the general single pool using double grid symmetrical layout. 4. Advantages and characteristics of equipment in our pool (1) filter plate The template used for integral pouring filter plate is our company's patented product with special square hole design to ensure the accuracy and speed of construction and reduce construction error.The template adopts high strength food grade ABS material, suitable for all kinds of water supply, water purification and other drinking water treatment systems. The materials used in the prefabricated split filter plate are all suitable for drinking water treatment system with no toxic side effects.Filter plate size can be customized according to requirements, high flatness, low error. (2) filter head Long handle filter head are our company's patented products, is the combination of traditional filter head and a lot of engineering experience of our company, and the improved production of filter head, practical and targeted.Adopt food grade ABS material, suitable for all kinds of water supply, water purification and other drinking water treatment systems. The long handle filter head used in the integral casting filter plate is a special square hole embedded seat design. The filter handle can be adjusted to ensure and set the height of the air cushion. The long handle filter head used in the prefabricated split filter plate is suitable for the filter plate of various thickness and meets the requirements of the filter plate of various sizes. (3) filter material Volcanic rock filter material produced by our company is especially suitable for various types of filters, meeting the relevant requirements stipulated in "Artificial Ceramsite Filter Material for Water Treatment" (CJ/T 299-2008).The surface of the filter material is rough, the microporous is developed, the pollution intercepting ability is strong, the resistance is small, the strength is large, the chemical and the biological stability is good.The advantages of volcanic rock filter material are as follows: 1) Porous honeycomb surface, small head loss, long backwash interval period; 2) Light bulk density, low power consumption for backwashing and transportation cost saving; 3) Large specific surface area and strong pollution interception capacity; 4) High material strength, long service life; 5. Engineering practice experience Our company has been engaged in all kinds of filter process fields for more than 10 years, and has rich experience in construction and site commissioning. Moreover, we can provide more professional and targeted technical services for all kinds of complex water quality and combination process. |
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| Deep bed denitrifying filter Deep-bed denitrification filters originated from the United States and were widely used in the United States and Eurasia in the 1990s. The research and application of deep-bed denitrification filter began in the early 21st century. Denitrification filter is a technology that carries out biological treatment and suspended matter treatment based on denitrification principle under anoxic conditions, and integrates denitrification and filtration. It is generally used in tertiary treatment or advanced treatment to control TN and SS in sewage. Denitrification uses carbon sources to reduce nitrate ions to nitrogen. The reaction equation is as follows (taking methanol CH, OH as an example) : 5CH30H+6NO3→0H+7H20+N2T+HCO3 The denitrification reaction is mainly dependent on denitrifying bacteria. Denitrifying bacteria are a class of chemoheterotrophic anoxic microorganisms. They rely on organic materials to survive, and the required nutrients are mainly composed of dissolved organic matter, nitrite, nitrate and hydride, etc., which are diffused from the water to the bioactive layer. Deep bed denitrification filter is a form of denitrification filter, which is a deep treatment process that organically combines biological treatment with deep bed filtration. It integrates biological nitrogen removal and filtration functions. Special biological filter material is used as the membrane hanging medium of denitrification biology. At the same time, deep bed (medium height is generally 1.8~2.5m) is also an excellent removal site for chlorine nitrate (NO.-N) and suspended solids (SS). Process characteristics: (1) The coarse filter material and deep filter bed used in the deep-bed denitrification filter provide the basic guarantee for the continuous, stable and efficient operation of the system. Short process, low energy consumption, convenient operation and management, good removal of suspended solids, no final sedimentation tank or filter tank. (2) Flexible application, multi-purpose pool, flexible conversion according to water quality, can be combined with dosing converted into deep bed filter to remove SS and total phosphorus (TP), can also be converted into nitrification filter to remove organic matter (BOD) and ammonia nitrogen (NH-N), can also be converted into denitrification filter to remove total nitrogen (TN). (3) Compared with conventional biological aerated filter, it has slight advantages in filter media maintenance cost and nitrogen removal efficiency, and is more suitable for sewage treatment with lower volume load. (4) The proprietary gas-water combined backwashing operation technology and other system integration technologies effectively solve the problem of biofilm falling off and blocking the filter. Proprietary nitrogen removal technology to effectively solve the "gas plugging" problem, especially suitable for biological denitrification process. |
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