The invention provides a preparation method of a suspended packing
bioreactor. The preparation method comprises the following steps: (1) uniformly mixing 0.2-0.6 part by weight of
magnetic powder, 7-10 parts by weight of recycled rubber
powder, 3-12 parts by weight of
zeolite, 2-8 parts by weight of
maleic anhydride, 0.2-0.8 part by weight of
dicumyl peroxide, 0.5-2 parts by weight of
chitin, 3-5 parts by weight of powdered
coke and 1-2 parts by weight of
slag powder, adding 70-75 parts by weight of
high density polyethylene, and stirring at high speed; (2) adding the above
mixed materials into a screw pelletizer and pelleting; (3) putting the pelleted particles into a screw extruder and carrying out
extrusion molding, carrying out vacuum setting, cooling, carrying out mechanical holing, and carrying out
cutting forming; and (4) finally irradiating the packing
bioreactor by short wave
ultraviolet. According to the invention,
hydrophily of the suspended packing
bioreactor is greatly enhanced, surface adsorbing capacity is increased,
biofilm adsorption strength is raised,
biofilm culturing period is shortened, and the
biofilm is not easy to fall off. The suspended packing bioreactor is suitable for
processing low concentration organic
wastewater and phenolic
wastewater.