ZHU Huaqing, CHEN  Yunxia, LIU Mei

（Jingdezhen Ceramic Institute, Jingdezhen 333403）

Abstract:Based on immobilization carrier of porous ceramics, a bioreactor with immobilized moss and mycorrhizas was designed for the treatment of micro -polluted water. Raw materials, including kaolinite clay, feldspar, fly ash, etc, were sintered at 1150℃ into porous ceramic boards with open porosity of 20～35%, pore size distribution on two scales and compression strength of 20.3Mpa. Mosses covered the surface of porous ceramic boards with immobilized mycorrhizas. At temperatures below 10℃, micro-polluted water overflowed the serrated weir set in the front of the reactor, percolated the porous ceramics settled on the bottom, fell into the next reactor through downcomer. Its CODcr（Chemical Oxygen Demand）removal rate reached 89.6% and its total nitrogen removal rate reached 45.8%. Results show that the porous ceramic bioreactor can meet the growing demand for moss and its mycorrhizas, give full play to moss-mycorrhizas symbiosis's resistance to the cold,and achieve a good treatment effect.

Keywords:porous ceramics, bioreactor, micro-polluted water, moss