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一、四环素废水的特点和处理现状生产四环素所用的原料种类很多,加之生产工艺复杂,决定了其废水有如下特点:1.成分复杂。含有大量有机物和无机盐,四环素结晶母液的 COD 高达18000mg/l,BOD_5为6850mg/l,含草酸5000～7000mg/l、氮2000mg/l 以上,废水呈酸性。2.含残余四环素。按生产标准规定,废水中含残余四环素的浓度在0.7～1g/l 之间,而在生产中经晶母液内四环素含量高达1.5g/l。残余四环素排入后会以水体微生物
First, the characteristics and treatment of tetracycline wastewater status Tetracycline production of many types of raw materials used, coupled with the complexity of the production process, has decided its wastewater has the following characteristics: 1. Complex composition. Containing a large amount of organic matter and inorganic salts, the tetracycline crystallization mother liquor COD up to 18000mg / l, BOD_5 6850mg / l, containing oxalic acid 5000 ~ 7000mg / l, nitrogen 2000mg / l above, the wastewater was acidic. 2. Contains residual tetracycline. According to production standards, the concentration of residual tetracycline in waste water is between 0.7 and 1 g / l, while the content of tetracycline in the mother liquor in the production is as high as 1.5 g / l. Residual tetracycline will be discharged into the body of water microorganisms