Abstract: This design is: Some medicine company 700 cubic meters/day drugs manufacture waste water processing stands the preliminary design. Mainly for the vitamin B12 fermentation waste liquid, the principal constituent is: The water, the protein, the amino acid and compares highly concentrated the sulfate, in which includes compares highly concentrated BOD, COD. Is the highly concentrated organic waste water. This design drafts to this kind of drugs manufacture waste water characteristic, added water the processing each kind of main processing craft to make the comparison. And has selected the most reasonable processing craft, namely: The upper reaches -like tire of the oxygen sludge law and the foreword written comment active sludge law union craft. And added water the processing construction to make the detailed computation, including: Various constructions volume, volume design calculation; Enters the water, the water leakage, enters the putty, leaves the putty position and the putty quantity computation and so on, because has the methane production, the pre- insolation sedimentation pond, SBR responded the pond needs to provide for the equipment, therefore designed has stored to be mad the cabinet and the air blower room. Through computation which loses to the water conservation, had determined various constructions elevation, was the plan elevation general arrangement peaceful surface general arrangement has provided the basis. Moreover the active sludge may use after the dehydrator dehydration to make the fertilizer or to do deeply buries processing. Finally has made the economic accounting to the entire craft, after the calculation, processes each cubic meter sewage the expense is 0.59 Yuan, therefore, this kind of source principle craft is completely feasible in the economy. Key word: Vitamin B12 fermentation waste water, UASB reactor, SBR law, sludge thickening, economic analysis
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