Industrial water treatment is understood that the PAC is a bioflocculant is correct? Now many industries due to the slow introduction of biotechnology water treatment, and in the process of using the added material requirements are very strict. Such as: biological flocculants, this product is a micro-produced products, will not cause pollution to the environment. No more than other chemicals, will not affect the biochemical system, and the use of results are excellent. However, due to the domestic application of biotechnology in water treatment did not take long, and the material used in everything we all know, so compared to the application of what is needed in the biochemical system is unknown, often appear to use Improper handling of the problem. Since many people nowadays use the materialization method to treat sewage, common flocculants and coagulants, the biochemical flocculants do not understand much. Some people use chemical flocculants, though they can , But some people abuse, inappropriate dosage control, or add too much ignorance. In use, many factory workers will come to ask, polyaluminium chloride is a biological flocculant? Add in the second aeration tank OK? What is the ratio of adding? Polyaluminium chloride is good yellow or brown is good. In fact, polyaluminium chloride is not a biological flocculant, is a chemical flocculant. The dosing position if added to the second aeration tank, a small amount of phosphorus can be used. In addition, the general dosage should not exceed 200ppm, otherwise it will affect the denitrification and reduce MLVSS concentration. The application of PAC in biochemical and physical and chemical methods in the application is different, not to say that the high content of the effect is good, this is only for the physical and chemical methods, the general content of yellow higher, but the price is more expensive, if used in Materialization is no problem, but for biochemistry, it depends on the situation.