PAC-SBR反应器处理制药废水活性污泥驯化实验研究

A Study on Domestication of Activated Sludge in the Process of Treating Pharmaceutical Wastewater Using PAC-SBR Reactor

制药废水的特点是成分复杂，有机物浓度高，且含有难生物降解和有抑制作用的抗生素等毒性物质．较为适合的处理方法是生化处理。文章研究了PAC-SBR反应器处理盐酸林可霉素原料药生产废水过程中活性污泥的驯化。活性污泥经1个月3个阶段的驯化后，发现在逐渐提高制药废水投加量的污泥驯化过程中，当投加量为1％时，去除率连续4d基本上稳定在90％以上。出水COD值全部在40mg／L以下。随着制药废水投加量的增加．COD去除率及出水质量有所下降，但仍能保持较高的COD去除率。较长时间稳定的去除率表明，污泥已基本适应盐酸林可霉素原料药的生产废水特性，活性污泥驯化完成。

Pharmaceutical wastewaters are usually characterised by complex composition and higher concentrations of organic matter whilst containing some toxic substances such as antibiotics which are hardly biodegradable and have inhibitory effect. A rather adaptable way to deal with pharmaceutical wastewaters is the biochemical method. The domestication of activated sludge in the process using a PAC-SBR reactor to deal with lincomycin hydrochloride wastewater was studied. The domestication had been completed through 3 stages in a month. When adding 1% of the pharmaceutical wastewater, the COD removal could keep above 90% for successive four days with always below 40mg/L of its concentration in the effluent. Along with more adding the pharmaceutical wastewater, the COD removal showed somewhat dropping though still maintaining at rather higher level. The stable removal rate for relatively longer period indicated that the sludge was basically adaptable to the lincomycin hydrochloride wastewater and the process of domesticating activated sludge had been completed.