Cellulose magnetic carrier, preparation method of cellulose magnetic carrier, anaerobic granular sludge containing cellulose magnetic carrier and preparation method of anaerobic granular sludge

The invention discloses a cellulose magnetic carrier, a preparation method of the cellulose magnetic carrier, anaerobic granular sludge containing the cellulose magnetic carrier and a preparation method of the anaerobic granular sludge, and belongs to the technical field of wastewater treatment. According to the preparation method of the cellulose magnetic carrier, in the preparation process, nano ferroferric oxide generated by ferric iron metal salt and ferrous iron metal salt can form a complex with microcrystalline cellulose, the complex is tightly combined on the surface of the microcrystalline cellulose, ferroferric oxide is not prone to falling off, and then it is ensured that the structure of prepared magnetic anaerobic granular sludge is stable. According to the preparation method of the anaerobic granular sludge disclosed by the invention, the prepared anaerobic granular sludge is grown, wrapped and wound by taking cellulose nano ferroferric oxide as a parent nucleus, and finally compact bioactive gr