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针对麻醉原料制药废水有机物浓度高、可生化性差、毒性大等特点,采用铁炭微电解法作为处理该制药废水的预处理工艺,考察了填料粒度、pH值、铁炭比、气水比和负荷等因素对铁炭微电解系统处理效能的影响。结果表明,在进水pH值为3,Fe/C体积比为1:2,铁屑、活性炭粒径为1 mm,负荷为175.5 kgCOD/(m~3铁炭·d),气水比为10:1,反应时间为2 h时,可使进水COD、色度分别为19 000 mg/L及600的制药废水,出水降至8 490mg/L及20,去除率分别为55.29%和96.67%,同时可使废水可生化性得到增大,BOD_5/COD由进水0.14提高至出水0.56。
In view of the high organic matter concentration, poor biodegradability and high toxicity of pharmaceutical raw materials for anesthetic raw materials, ferric-carbon micro-electrolysis was used as the pretreatment technology for the treatment of the pharmaceutical wastewater. The effects of particle size, pH value, iron-carbon ratio, Load and other factors on the performance of ferric oxide micro-electrolysis system. The results showed that when the influent pH value was 3, the volume ratio of Fe / C was 1: 2, the size of iron filings, activated carbon was 1 mm, the load was 175.5 kgCOD / (m ~ 3 iron carbon · d) 10: 1, the reaction time is 2 h, the effluent COD, chroma respectively 19 000 mg / L and 600 pharmaceutical wastewater, effluent down to 8 490mg / L and 20, the removal rates were 55.29% and 96.67 %, While the biodegradability of wastewater can be increased, BOD_5 / COD increased from 0.14 to 0.56 effluent.