Biological Wastewater Treatment with Juntai Bio Block
With years of research and development and rich experience in polyethylene extrusion technology, EXPO-NET Danmark As has developed a structured filter media. Facts have proved that this medium is very effective in the biological treatment of domestic sewage, industrial wastewater and process water in the aquaculture field
The medium is made of environmentally friendly material polyethylene, welded together by net pipes to form a square block. The unique surface structure of many network tubes provides a large accessible surface area to enhance biological growth on the filter media
Juntai plastic can provide Juntai BIO-BLCOK 35, Juntai BIO-BLCOK 50, Juntai BIO-BLCOK 55, and Juntai BIO-BLCOK 70 as block modules with a height of 35 to 70 cm. In addition, all four types can be customized in length as individual network management.
The HD (High Density) name indicates that the specific gravity of the produced material is 0.95. The BIO-BLCOK HD module is particularly suitable for submerged aeration filters (SAF) and biological flake separation systems.
Bioactive specific surface area
When bacteria (biofilm or biofilm) grow on a horizontal surface, the specific surface area will remain unchanged even if a thicker biofilm is established.
Juntai BIO-BLCOK. However, it is designed as a spiral structure. Based on elliptical threads with a defined diameter, if these threads become thicker due to the increase in the thickness of the biofilm, the specific biologically active surface increases accordingly.
The biological wastewater treatment plant installed with the "Juntai BlO-BLCOK" filter media therefore has unique flexibility and can increase its ability to handle flow changes and load changes when necessary, which inevitably occur at the entrance to all Sewage treatment plant.
Table 2: Specific biologically active surface area of B1O-BLOK" filter media
General requirements of biological filter media to achieve the best treatment effect
General reauirements for biological fiter media in order to achieve optimal treatment results
1. The filter medium should have a relatively rough surface to promote the rapid establishment of organisms.
Active surface (biofilm).
2. The filter medium must have a structure that enables on-site backwashing and cleaning operations. canal
It must be vertical and run through the entire media column.
3. The filter medium must have a structure that ensures the best oxygen transfer to the biofilm, ie. It must have surface High porosity.
4. The filter medium must not be clogged and must have self-cleaning performance. The structure must allow shed organisms. Film fragments pass through the filter unhindered.
5. The filter media module should be constructed with round or elliptical threads. Bacteria growth on a circle or on a circle.The elliptical surface increases the diameter, thereby increasing the specific biologically active surface area. (Please note that this is the opposite of a medium with a horizontal surface with a constant surface area for specific biological activity)
6. The filter medium must be biologically and chemically non-degradable
7. The filter medium must be self-supporting and have high mechanical strength. It must be able to carry overlying materials, personnel can walk freely and perform service tasks, and the medium should not be deformed
8. The filter medium must be UV stable and must be able to withstand potential changes in temperature.
9. The filter medium should be made of environmentally friendly materials (that is, it does not contain PVC compounds or glue)10. The filter media must be modular and easy to handle. This will simplify installation and potential temporary renewal. Move to perform service tasks under the filter
11. The filter medium must be easy to install into any type of tank or bioreactor without wasting any space and cooperation
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