What is a Biological dust removal equipment？

What is a Biological dust removal equipment？

A complete introduction to biological dust removal equipment：There are two mainstream routes for biological dust removal in the industry:
Biological dust removal equipment source dust suppression, dedicated for solid dust).Biological filter/biological drip filtration/biological washing tower (waste gas dust removal+deodorization, dust+VOC/odor synergistic treatment).Biological dust removal equipment (industrial ore, yard, crushing mainstream)

1. Working principle of biological dust removal equipment

Using biodegradable nano dust suppressants, a nano level charged film is formed by generator atomization and sprayed onto the surface of dust producing materials; The thin film adsorbs PM10 and PM2.5 fine dust, causing small particles to agglomerate, increase weight, and naturally settle, preventing dust from flying from the source.
Dust suppressants are made from plant extracts, which degrade 80% within 3 hours and completely decompose within 48 hours without secondary pollution or affecting the quality of raw materials.

2. Composition of biological dust removal equipment

Nano film preparation host (core generator, atomization expansion film 500-800 times contact area)
Pharmaceutical storage dilution tank, automatic proportioning system
High pressure spray pipeline/universal nozzle
Intelligent electronic control, remote monitoring
Supporting water supply, dust collection bin

3. Core advantages of biological dust removal equipment

Dust removal efficiency is 95%~99%, and the treatment effect of ultrafine dust is better than that of spray water dust removal
Water and electricity saving, with an operating cost of only 0.05~0.5 yuan/ton of material
After dust agglomeration, it returns to the finished product, increasing production by 0.5% to 3%
No sewage, no sludge solid waste, no need for cloth bags, no need for frequent dust cleaning
Open working conditions are available, without the need for a fully enclosed factory building. Infrastructure investment is 30% to 50% lower than bag dust removal

4. Applicable scenarios of biological dust removal equipment

Mining crushing, sand and gravel yard, steel mill silo, port bulk cargo yard, garbage sorting, thermal power coal yard, construction waste treatment.
Biological filter/biological drip filtration tower (integrated waste gas dust removal and deodorization)
1. Principle of biological dust removal equipment (microbial degradation for dust removal and deodorization)
The dust containing odor is first sprayed for pre dust removal, and large particles of dust are intercepted by water washing; Remaining fine dust VOC、 Hydrogen sulfide and ammonia enter the filter bed, and microbial biofilms adhere to the surface of the filter material
Dust and organic pollutants are adsorbed and intercepted by filter media and biofilm
Microorganisms use pollutants as nutrients and oxidize and decompose them into CO ₂, H ₂ O, and inorganic salts
Simultaneous removal of dust and odor, with dual functions of dust removal and exhaust gas purification

Advantages of Biological Dust Removal Equipment

Synchronous dust removal+deodorization, a set of equipment solves the dual problems of dust and odor
Low operating energy consumption, only the fan and circulating water pump consume electricity, and the cost of chemicals is extremely low
Normal temperature operation, no consumables replacement, no hazardous waste generation, environmentally compliant
Stable removal of submicron organic dust, less likely to generate secondary dust

2. Applicable industries

Organic fertilizer fermentation workshop, sewage treatment plant, kitchen waste, slaughterhouse, food processing, feed mill, small-scale coating waste gas.

3、 Biological dust removal vs traditional bag/water spray dust removal

Comparison of Bag Dust Removal
Biological nanofilm: no filter bag blockage, no risk of high temperature burning, and no need for frequent dust cleaning; But not suitable for high-temperature dry flue gas
Biological filter: synchronous deodorization, no dust or hazardous waste, occupies a larger area
Comparison of Wet Spray Dust Removal
Biological nanofilm: only 1/10 of water consumption for spraying, no mud wastewater treatment
Biological filter: simple effluent, microbial degradation of pollutants, no chemical agents in sludge

4、 Suggestions for selection of biological dust removal equipment

Pure solid material dust (sand and gravel, mines, coal yards) → Select biological nano film dust suppression system
Containing dust+odor/VOC waste gas (fermentation, sewage, organic fertilizer, food) → Select integrated equipment of biological drip filtration/biological filter
High concentration high-temperature flue gas and metal smelting dust: Pure biological method is not recommended. It is recommended to use cyclone+bag front and biological deodorization at the back.

5、 Reference for key operating parameters of biological dust removal equipment

Biological nano membrane: spray pressure 0.6~1.2MPa, reagent dilution ratio 1:100~1:300
Biological filter: Empty bed retention time of 8-20s, packing moisture content of 40% -65%, operating temperature of 20-38 ℃
Dust removal efficiency: biological nanofilm ≥ 98%; After pre spraying the biological filter, the comprehensive dust removal is ≥ 90%, and the odor removal is 90%~98%