Laminar Flow Biological filter for removal of pollutants from Industrial Effluents

摘要

A conformation of a laminardispuesto Flow Biological filter in the form of a bioreactor with packing, where the materials that make up the Gravel Packing from 1.2 to 2.Average diameter of 5 cm, Sand, Coal and Plant material scrapWhere these materials of the packaging are physically a stratified heterogeneous population of Microorganisms consisting of Colored Sulfur bacteria, cyanobacteria,No colored Sulfur bacteria, sulfate reducing bacteria and heterotrophic bacteria.A procedure for removal of metal cations present in the material FluidThrough the establishment of a system of laminar flow Biological Filter arranged in the form of packaging in a single Phase bioreactors with laminar flowOr sequentially with laminar flow, laminar flow downward and Upward,Packaging or sequentially with Flow regions and regions without Packing with packing flow in one direction, the process includes the following steps: (a) translating the effluentTreaty through any of the three listed bioreactor Designs, with a residence time of 8 to 72 hours, and a flow rate of 0.1 to 10 L.(b) filter to remove suspended solids and particles and low solubility mineral resulting from Biological reactions listed below; (c) Free RadicalsBiological reactions in which recirculates The Carbon and sulfur, lead to the formation of sulfide ions, sulphate,Carbonate and hydroxide Reagents with the potential to react with the components of the treated effluent; (d) to form compounds of low solubility,Where the metal Elements present in soluble forms, usually as divalent cations REACT with Radicals mentioned in STEP (c),Resulting in the formation of low solubility mineral; and (e) depositing sediment and mineral particles referred to in (d); where several or all of the above mentioned stages occursN simultaneously during the operation of the biofilter.