“生物巢”形成及其水处理机制的理论分析The Theoretical Analysis for the Formation and Wastewater Treatment Mechanism of “Bio-Nest”
吴智仁, 蒋素英, 周向同, 蔡培杰, 谢菁, 陈园园, 石玲珑, 张波, 罗志军
生物巢, 玄武岩纤维, 三维多膜层结构, 活性污泥法Bio-Nest, Basalt Fibre, Three-Dimentional Multilayered Structure, Activated Sludge
《Advances in Environmental Protection》, Vol.6 No.4, 2016-08-15
Currently, the traditional packing can only provide a two-dimensional attachment surface, and the attached bacteria can’t form the three-dimensional multilayered structure which is like aerobic sludge granular. In allusion to these problems, “bio-nest” as a novel concept is proposed, in order to treat the wastewater with a special three-dimensional multilayered structure. The “bio-nest” is based on soft Basalt Fibre (BF) packing which is modified in the surface electrical behavior. And the modified BF (MBF) shows excellent dispersibility in water and biocompatibility. The MBF packing can offer the effects of winding, parcels and support to the bacteria under the hydraulic agitation, and a globular activated sludge aggregate is formed with a large diameter of more than 10 cm. In addition, the removal of C, N, P, S and other pollutants by “bio-nest” is in a single reactor synchronously in theory due to the three-dimensional multilayered structure and the abundant biological species. Thus, in this work, the confirmation of packing materials, the parameters for the forming process and working mechanism of the “bio-nest” is analyzed systematically in theory.