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Longantai - Model LSF -Active Autotrophic Biological Nitrogen Removal Technology
The core of LSF active autotrophic biological nitrogen removal technology is Fe-S coupled biological carrier independently developed by Longantei. The biological carrier is composed of Fe-S nano-micronucleus and alkalinity load, which has large specific surface area and high efficiency. The principle of its action is that in anoxic environment, denitrifying bacteria take Fe-S nanonuclei as electron donors, nitro pollutants such as NO3- and NO2- as electron acceptors, and inorganic carbon (CO2, HCO3-, CO32-) as metabolic carbon sources to convert NO3- and NO2- and other pollutants in wastewater into N2. The alkalinity load was distributed evenly in the porous cage of the coupled biological carrier, which could form a synergic mechanism with Fe-S nanopores to effectively balance pH during nitrogen removal and realize self-maintenance of alkalinity activity in water environment.
At the same time, the introduction of Fe-S nanopores can effectively promote the metabolic coupling of microorganisms, realize the self-activation of nitrogen removal process, and finally achieve efficient, sustainable and stable nitrogen removal.
- Stable chemical properties, long life, reusable.
- Do not add any chemical agents to reduce the treatment cost and prevent COD from exceeding the standard.
- Short residence time and fast degradation rate.
- Do not produce a lot of sludge, reduce the cost of sludge treatment.
- The process equipment is simple and the operation is highly automated.
- Supporting facilities can be structured and equipped according to the scale and user requirements to meet a variety of needs.
- Chemical wastewater, printing and dyeing wastewater denitrification
- Low investment, good effect, no secondary pollution.
- Municipal sewage, river surface water nitrogen removal
- Short residence time and high nitrogen removal efficiency.
- Supporting facilities can be structured and equipped according to the scale and user requirements to meet a variety of needs.