Main features: Pharmaceutical wastewater treatment filler / filler pharmaceutical wastewater treatment [species] Pu Yan Wal Yun Lin Bin Medical Wastewater Environmental Science and Technology filler. Iron-carbon fillers, iron-carbon micro-electrolysis filler. [1] is an iron-carbon filler filler sewage treatment, Pu Yan Wal Yun - iron-carbon filler is not compacted, low loss! Provide iron-carbon fillers samples and experimental processes! [2] micro-electrolysis packing process (ie iron-carbon fillers) is the use of electrochemical reaction, redox and flocculation in the removal of COD, color, etc. have made a very satisfactory treatment effect, so much attention and attention. The first iron-carbon micro-electrolysis reaction tank filler is to iron and carbon particles layered filling, let the water through the filler react. Later found that the reaction tank filler reactions continue to occur as a filler compaction, can not continue to complete the reaction, so the site frequent cleaning fillers, replace the packing. [3] iron-carbon micro-electrolysis to remove high concentration organic wastewater contaminants in the main mechanism of action is: complexation: Micro-electrolysis reaction continuous release of ferrous ions become complexing agent. Coagulation: Micro-electrolysis reaction continuous release of ferrous ions become effective coagulant. Reduction: micro-ecology of hydrogen produced by electrolysis to make some new color groups bleaching. Oxidation: nascent oxygen to produce a certain amount of micro-electrolysis with strong oxidizing oxidizable part of the organic matter. [4] iron oxide, carbon filler principle: electronic interludes when the wastewater will pass through the water molecules, the water molecules are broken down when it will produce a lot of hydrogen radicals, oxygen free radicals, and hydroxyl radicals, These new eco-radicals have a very strong oxidation, organic matter in wastewater can be completely oxidized to carbon dioxide and water, thereby drastically reduce the COD. [5] iron-carbon micro-electrolysis method is flocculation, adsorption, bridge, swept volume, total precipitation, the results of a variety of roles electrodeposition, the combined effect of the electrochemical reduction, etc., can effectively remove improve the biodegradability of wastewater pollutants. The main role of redox and electrically attached sets, the main component of the micro-electrolysis of iron and carbon filler, when it is immersed in an electrolyte solution, the electrode potential of 1.2V due to a difference between Fe and C, and thus the formation of numerous micro-cell system, in which the role of space constitute an electric field, the anode reaction generates a lot of Fe2 into the water, and then oxidized to Fe3, forming a flocculant has a high adsorption and flocculation activity. Cathodic reaction produces a lot of new ecology [H] and [O], at acidic conditions, these active ingredients can occur in a redox reaction with many of the wastewater components, the occurrence of chain scission degradation of the organic macromolecule, thereby eliminating the organic matter to improve the biodegradability and the cathodic reaction consumes a lot of H generates a lot of OH-, making the water PH value also increased. [Iron-carbon micro-electrolysis - iron-carbon micro electrolysis filler PRINCIPLE efficient sewage treatment equipment, also known as sustained high activity in the electrolytic bed, the main advantage of the reduction, the electrochemical properties of iron, three iron flocculation adsorption interaction of iron ions to purify wastewater. Its treatment principle, it should be classified in the electrolysis method, also known as iron-carbon internal electrolysis or iron-carbon micro-electrolysis method, under acidic conditions, the formation of numerous micro-current reaction between iron and carbon, wastewater under the action of the micro-organic material is redox current. When the waste water through a filler containing iron and carbon, iron becomes an anode, the carbon becomes a cathode, and a micro-current flow, the formation of numerous small cell corrosion. Its related reactions are as follows: anodic reaction Fe-2e → Fe2 + E0 (Fe2 + / Fe) = -0.44V cathodic reaction 2H ++ 2e → H2 ↑ E0 (H2 + / H2) = 0.00V when oxygen O2 + 4H + + 4e → 2H2O E0 (O2) = 1.23V O2 + 4 H2O + 4e → 4OH- E0 (O2 / OH -) = 0.40V and the above reaction under acidic conditions in an oxygenated, and the worst corrosion was confirmed with the following features: Since organic substance involved in the reduction reaction of the cathode, so that the functional group is changed, changing the nature of the original organic matter, reduced color, improved the B / C value, a number of inorganic substances are involved in the reaction to form a precipitate can be removed. Such as: Fe2 + + S2- = FeS ↓ colloidal particles and small decentralized wastewater pollutants by the electric field generated electrophoresis, move to the oppositely charged electrode and the water accumulated on the electrode clarification; anode new ecology of Fe2 + by lime and generate Fe (OH) 2, Fe (OH) 3 has a strong adsorption capacity, so that the water can be clarified; anode to generate hydrogen, with a reduction, reduction of nitrobenzene to aniline can reduce the toxicity of waste water increased wastewater oxidizable nature, conducive to the subsequent oxidation process to improve the effect. This technique is particularly large concentration of organic matter for the high toxicity, high chroma, difficult biochemical wastewater treatment, waste water can be greatly reduced color and COD, improve B / C ratio that is improving wastewater biodegradability; can be widely used printing and dyeing, chemical, electroplating, pulp and paper, pharmaceutical, scouring, pesticides, alcohol and other types of industrial wastewater and treated water reuse project.