The glass fiber reinforced plastic biological deodorizing tower is a permanent large surface area biological filler that is attached and grown by organisms.
Product Description
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Diameter: DN3000*9800
The glass fiber reinforced plastic biological deodorizing tower is a permanent large surface area biological filler that is attached and grown by organisms. It degrades malodorous substances and decomposes the malodorous substances into odorless substances such as water, carbon dioxide, water, and minerals to achieve the purpose of purifying malodorous gases. It is suitable for odor control in municipal sewage treatment plants, sewage pumping stations, garbage treatment plants (stations), petroleum and petrochemical, pharmaceutical and chemical, food processing, spraying, printing, textile printing and dyeing, leather processing and other production industries.
Bio Towers are biological treatment units used widely in effluent treatment plants. Bio towers use plastic media for increasing the specific surface area of the biological action. Bio towers are largely successful wherein the BOD in the effluent is high (as in Refinery effluents) and has advantages on shock loads.
BOD and ammoniacal nitrogen removal process is termed 'biological oxidation.' It is achieved by providing an environment in which both oxygen and organic matter are brought into intimate contact with a population of microorganisms.
The process of 'biological oxidation' relies upon naturally occurring microorganisms present in the wastewater adsorbing and subsequently oxidizing dissolved organic pollutants from the wastewater in the presence of oxygen.
Effluent is evenly dispersed over the surface of Etapak media by either a rotating or reciprocating distributor. Oxygen is transferred by diffusion from the air (which is continually passing through the media void spaces) into the effluent, which trickles over the media surface. This oxygen supports living microorganisms which feed on the dissolved organic matter in the effluent and grow as a film over the surface of the media.
The biological film is alive and continually growing but, for it to stay alive, both the polluting matter, which is the food source, and oxygen must diffuse through its surface to reach all the aerobic microorganisms. Beyond a certain film thickness, the concentrations of food and oxygen become too low to sustain life. At that point, the aerobic organisms starved of food and oxygen die. The dead layer or 'biomass' then breaks away (sloughs) from the media surface and is washed down through the Etapak bed. New biofilm now begins to grow on the media surface, becoming progressively thicker, until food can no longer diffuse through it to those layers near the media surface, which therefore die producing more biomass. Thus, the cycle is perpetuated.
Yongchang made Bio tower mechanism is a cost-effective solution in Biological treatment. The bio tower mechanism consists of properly supported distributor arms and rotates on hydraulic power generated by the flow of effluent treated in the system.
The distributor's arms are provided with nozzles along the arm's length to evenly spread the effluent across the top layer of the media bed. The flow pattern is selected in such a way as to avoid any channeling of effluent in the media bed.
Bio-towers have a proven track record of being robust in withstanding shock organic and hydraulic loads. Consequently, complex instrumentation is not required.
As Bio Towers are otherwise called, the fixed-film bio-reactors are predominantly designed to operate on natural draught caused by the slight differences in densities of atmospheric air and the air within the packed bed that is sufficient for ventilation. Where it is considered prudent to install fans, for example, bio-reactors treating effluents with a process-derived odor, the oxygen transfer is such that the cost of installing fans is negligible.
Media bio-reactors are usually 5 - 6 m tall, and thus pumps must be employed to raise the effluent, and any recycle flow to the liquid distributor. While this pumping consumes some power, the quantities involved are small compared with the savings possible by eliminating activated sludge aeration costs.
The wastage of active cells from a Bio tower is negligible, and thus, no recirculation of biological solids is required.
The sludge from the Bio-tower is stable and shows good settling properties.
Yongchang makes Media bio-reactors require only occasional monitoring and maintenance.
To sum up:
• Biotower is conventional equipment and proven technology
• Can absorb shock organic and hydraulic loads
• Economic media cost and replacement easy
• Economical at high BOD content
• Low energy cost compared to another system
• Ease in monitoring and maintenance
A combination of Bio towers and regular biological treatment (extended aeration) is an alternative solution that provides the twin advantages of energy conservation and absorbing shock loads. The use of bio tower, though not a new technology, combines with conventional treatment, provides an economical option. The results are proven. Bio towers use plastic media for increasing the specific surface area of the biological action. Bio towers are largely successful wherein the BOD in the effluent is high (as in Refinery effluents) and has advantages on shock loads.
• Biotower is a piece of conventional equipment and proven technology
• Can absorb shock loads
• Economic media cost and replacement easy
• Economical at high BOD content
• Low energy cost compared to another system
• Adaptable to conventional and contemporary technologies after Bio-Tower
