Biological deodorization box

Product Description: Explanation of Biological Deodorization Process Principles and Performance Characteristics

The combined biological scrubbing and filtration deodorization unit integrates three biological technologies: biological scrubbing, biological trickling filtration, and biological filtration. This novel composite biological deodorization device was developed by synthesizing the advantages of these three biological techniques. Odorous gases enter the scrubbing zone via the inlet, where they undergo preliminary treatment with water or concentrated chemical scrubbing solutions. This scrubbing zone completes the absorption of water-soluble chemicals, dust removal, and humidification of the odorous gases. Unremoved malodorous gases then proceed to the multi-stage biofilter bed filtration zone. As they pass through the filter layer, pollutants transfer from the gas phase to the surface of the biofilm:
a) Under sprayed water action, malodorous gases contact and dissolve within the water film on the moist packing material (biological media).
b) Malodorous components entering the biofilm are degraded within the packing material through microbial absorption and decomposition.
c) Microorganisms utilize absorbed malodorous components as an energy source for further reproduction. These three processes occur simultaneously, ensuring the entire system
meets emission standards.

Determination of Process Parameters

1. Selection of Water Pumps
2. Packing Height: Approximately 0.8–1.2 m
3. Gas Velocity
Gas residence time within the equipment: 5–25 seconds (Our equipment typically achieves over 20 seconds of empty tower residence time)
Gas velocity controlled at 0.2–0.5 m/s. (Tower gas velocity is the linear velocity of mixed gas calculated based on the empty tower cross-sectional area; maximum gas volume occurs at the tower base, typically used for calculation.)
Our equipment employs spherical polymeric organic packing, D=50 mm, (voidage) = 0.73
The effective volume and height of the biofilter and biofill material shall be calculated using the following formula:
V = QT / 3600
H = VT / 3600
Where:
V = Effective volume of the packing layer (m³)
Q = Odorous gas flow rate (m³/h)
T = Empty tower residence time (s)
H = Height of the packing layer (m)
V = Empty tower gas velocity (m/s)

Performance Advantages of Biological Odor Control

● High Treatment Efficiency and Superior Odor Removal
Microbial filtration odor control equipment effectively eliminates specific pollutants such as hydrogen sulfide, ammonia, and methyl mercaptan, delivering outstanding odor removal with an efficiency exceeding 95%.
It meets the most stringent odor control environmental requirements across diverse regions under any seasonal or climate conditions.
● Advanced and Rational Deodorization Process
The advanced and rational deodorization process ensures final emissions are harmless to humans and animals. This environmentally friendly technology causes no secondary pollution.
● Microbial Activity
Only a small amount of nutrient agent is required during the initial operation. Microorganisms maintain optimal activity by absorbing nutrients from exhaust gases.
● High Shock Load Tolerance
The system automatically adjusts to peak exhaust gas concentrations, ensuring continuous microbial operation with strong shock load tolerance. This represents the most distinctive feature and advantage of spray-microbial filtration deodorization equipment compared to other methods.
● Extended biological media lifespan
Specially processed biological media exhibit high specific surface area, facilitate biofilm formation and detachment, resist corrosion and biodegradation, provide excellent thermal insulation, feature high porosity, minimal pressure drop, and efficient gas/water distribution. Service life reaches 8–10 years.
● Simple Operation, Maintenance-Free
Requires no dedicated personnel or routine maintenance. Extremely low operational costs with convenient management. Capable of continuous 24-hour operation or intermittent use.
Minimal-wear components ensure exceptionally straightforward maintenance.