Conductive aeration biofilter is China's independent intellectual property rights of the new sewage treatment process, according to the subsequent treatment process, it is divided into: hydrolysis-conductive aeration biofilter, anaerobic-conductive aeration biofilter, air flotation-conductive aeration biofilter, fast sedimentation-conductive aeration biofilter, ultrasonic-conductive aeration biofilter, microwave-conductive aeration biofilter, ozone-conductive aeration biofilter, etc. aeration biofilter, ozone-ducted flow aeration biofilter, etc.
Conductive aeration biofilter in the old sewage treatment project upgrading, nitrogen and phosphorus removal, water reuse and other processes combined to develop AB method - conductive aeration biofilter; A/O method - conductive aeration biofilter; A2/O method - conductive aeration biofilter; oxidation ditch - conductive aeration biofilter; SBR - conductive aeration biofilter; biological contact oxidation - conductive aeration biofilter and many other deep treatment processes. Bio-contact oxidation-conducted aeration biofilter and other deep treatment processes.
Conductive aeration biofilter fully draws on the aeration biofilter method, contact oxidation, biofilm method, gap aeration method, artificial fast filtration, sedimentation and separation method, nitrification back to nitrification method, fast filtration of water, such as the design of eight, and combined with the secondary or tertiary wastewater treatment process and the development of a new wastewater treatment process, a new technology. 2005 to obtain a national patent.
Conductive aeration biofilter in China's Beijing, Shandong, Hebei, Guizhou, Shanxi, Sichuan, Inner Mongolia, Heilongjiang, Jiangsu, Jilin, Henan, Hubei, Tianjin, Xinjiang and other places there have been examples of engineering cases, cases involving life, hospitals, chemical industry, slaughtering, food, linen, alcohol, pharmaceuticals, pickled vegetables and other areas of sewage treatment. A large number of applications have proved that: the effluent water quality CODcr is generally below 20mg/L, the lowest 5.95mg/L; BOD5 is generally below 10mg/L, the lowest 3.50mg/L; SS is generally below 20mg/L, the lowest 6.55mg/L.
Infiltration aeration biofiltration tanks so that the sewage in the same treatment tank, to complete the two times of aeration, two times of sedimentation, two times of filtration, to solve the other sewage treatment In 2009, it was listed as "Innovative Project"; in December of the same year, it was listed as "Environmental Protection Technology Encouraged by the State"; in 2010, it was listed as "National Key New Product"; and in 2012, it was listed as "National Key New Product"; and in 2012, it was listed as "National Key New Product". During the 12th Five-Year Plan period, the state has invested more in the upgrading of urban, rural, industrial, aquaculture, and municipal wastewater treatment plants, denitrification and phosphorus removal, and water reuse, etc. The environmental protection technology is recommended and encouraged.
(1), technology forward-looking
Conductive aeration biofilter is a typical high-load, submerged, immobilized biological bed of three-phase conduction, denitrification and phosphorus removal reactor, in the absence of increased investment in the premise of the treated effluent better than the discharge standard, to achieve the water reuse water quality, and therefore technology forward-looking.
(2), process innovation
Conductive aeration biofilter so that the sewage in the same treatment pool, to solve other sewage treatment requires four pools to complete the process. The whole operation without idleness. Therefore the process innovative.
(3), engineering investment economy
The BOD5 volumetric load of the inflow aeration biofilter is 5 to 10 times that of conventional secondary biological treatment, and combines two aeration tanks, two sedimentation tanks and two filtration tanks into a single tank, therefore, the engineering investment economy.
(4), the stability of the treatment effect
Conductive aeration biofilter with nitrification, denitrification function, there is no sludge expansion concerns, not subject to the impact of the hydraulic load, so the stability of the treatment effect.
(5), the simplification of the treatment process
Conductive aeration biofiltration can be after the sewage treatment, in the absence of deep treatment facilities and equipment under the conditions, to achieve water reuse water quality, so the treatment process is simplified.
(6), the operation cost economy
Conductive aeration biofiltration using filter media cutting, blocking, crushing bubbles, to strengthen the gas and liquid mass transfer effect, increase the contact area and time between microorganisms and air, greatly improve the oxygenation rate, reduce power consumption, so the operation cost economy.
(7), operation and management simplicity
Conductive aeration biofilter adopts PLC to realize program-controlled operation, i.e., through the liquid level sensing and equipment chain, so that there is sewage automatic startup, no sewage automatic shutdown; through the dissolved oxygen detector frequency converter chain, to realize the adjustment of aeration; through the money transmission, to realize the remote monitoring and control, to achieve the purpose of monitoring the quality of water, fault judgement, etc., so the Simplicity of operation and management.
(8) Typicality of denitrification and phosphorus removal
Through the autotrophic bacteria (such as nitrifying bacteria) in the lower part of the inner cone and the upper part of the outer cone, ammonia nitrogen is nitrified twice, and it can take off ammonia nitrogen to less than 3mg/L, and the lowest one is less than 0.068mg/L. Therefore, the denitrification is typical.
The phosphorus removal of the inflow aeration biofilter is produced in the inner cone, and the outer cone of the two aerobic section of the polyphosphorus bacteria, can take up a large amount of dissolved phosphorus, and through the inflow aeration biofilter cone bottom settlement, very smooth sludge discharge, so the phosphorus in the effluent water is generally less than 0.5mg/L, the lowest to 0.08mg/L, so the phosphorus removal is typical.
Influent aeration biofilter effectively solves the BAF (aeration biofilter), denitrification effect is good, phosphorus removal effect is poor technical difficulties. At the same time also solved the A2 / O in the second sedimentation tank N2 attached sludge floating, precipitation effect is not ideal. Increase the second sedimentation tank reduction potential increases, causing phosphorus release, phosphorus removal effect is not satisfactory and other technical difficulties.
(9), temperature and mode of operation adaptability
Conductive aeration biofilter can operate normally between 1 ℃ -50 ℃, not affected by geographic and climatic conditions, applicable to the South, is also suitable for the North, coupled with a large number of microorganisms will not be lost, even if a long period of time does not run to maintain the activity of its strains of bacteria, into the water very soon after normal operation. Therefore the temperature and operation mode adaptability.
(10) Convenience of maintenance and replacement
The main rotating equipment of the inflow aeration biofilter is placed on the ground, plus the use of domestic equipment, and there is a fault judgment alarm system, so it is convenient to maintain and replace the parts.
(11), engineering and construction flexibility
Influent aeration biofilter is a modular structure, can be designed centrally, but also separately, conducive to the expansion of the project, can be better adapted to the landscape of each region, for the upgrading of old sewage treatment works are also time favorable. You can find the best manufacturers when you look for inflow aeration biofilter on the Internet.