Traditional seawater raw water treatment process:
Simple sedimentation-filtration-air flotation-disinfection, in which three-stage sand filtration is used for filtration; jet air flotation technology is used for air flotation. The main purpose is to remove Ammonia nitrogen and protein in seawater have no treatment effect on heavy metals in seawater, and this process is only used in a small number of nurseries. Disinfection mainly uses chemical disinfection methods such as chlorine preparations and iodine preparations, which have certain drug residues and have a great impact on seedlings.
AFF-air flotation-MBFB-UV disinfection. Raw water detoxification process for breeding seedlings:
AFF-air flotation-MBFB-ACFF-UV disinfection process, in which AFF directly filters Remove suspended solids with diameters greater than 5 μm in raw water; air flotation adopts the air-entraining air flotation process to remove heavy metals in seawater by adding heavy metal capture agents; PACBFB-MBR and ACFF are both environmental hormone treatment technologies that can effectively remove refractory small molecules in the water body Toxic organic compounds;
Disinfection mainly uses ultraviolet disinfection or photocatalytic disinfection process, which has high disinfection efficiency and no drug residue.
The freshwater raw water treatment process is similar to that of seawater, except that there is no air flotation section. The heavy metal removal method is mainly to add heavy metal capture agents during AFF filtration. It also serves as a biological flocculant to remove water with a molecular weight greater than 10000D. The organic matter flocculates to facilitate AFF filtration.
Taoxin Environmental Technology Company is based on the research results of the Seattle company. It was initiated by Dr. She Nian and joined by biochemistry expert Dr. K.B.chipasa and aquaculture expert Dr. E.hontoria. It focuses on biochemistry, ecology, environmental science, etc. The R&D team composed of multi-disciplinary and multi-professional elites mainly develops urban surface water ecological management systems, aquaculture complex enzyme systems, inorganic membrane separation systems and membrane bioreactor research. It has obtained 3 U.S. patents and was awarded the U.S. patent in 2004. The Harvard Business School Annual Invention Award has achieved fruitful results in many fields such as river and lake management, industrialized seawater and freshwater circulating aquaculture, and aquatic nursery.