水解酸化──AB生物法处理抗生素废水的试验研究

Hydrolytic Acidification--AB Biological Process for Antibiotic Wastewater Treatment

进行了多品种抗生素工业废水处理的试验研究，采用水解酸化——ＡＢ生物法新工艺。试验废水ＣＯＤｃｒ ３２８３．９ｍｇ／Ｌ，ＢＯＤ５ １３４８．９ｍｇ／Ｌ，ＮＨ３—Ｎ ２２．０ｍｇ／Ｌ，色度３２５（倍），处理后出水分别为２８７．８ｍｇ／Ｌ，２１．３ｍｇ／Ｌ，２．６ ｍｍ／Ｌ和 ７０（倍），各项去除率为９１． ２％、９８． ４％、８８． ２％和 ７８． ５％。容积有机负荷 Ａ级 ２．３ＫｇＣＯＤｃｒ／ｍ３．ｄ、Ｂ级 ３． ３ＫｇＣＯＤｃｒ／ｍ３．ｄ。出水达到国家规定的（ＧＢ９６７８—８８）生物制药行业废水排放标准。比报导的化学絮凝—生物法处理同 种废水的运行费用要低。

The treatment technology for several kinds of antibiotic wastewater was studied using hydrolytic acidification pretreatment-AB biological process in the lab. The results showed that effluent CODcr was 287. 8mg/L, BOD5 21. 3mg/L, NH,3-N 2. 6mg/L and color 70 fold when influent CODcr was 3283. 9mg/L, BOD5 1348mg/L, NH3-N 22. 0 mg/L and color 325 fold. Their removal efficiencies were 91.2%, 98. 4%, 88. 2% and 78. 5%, respectively. The volume organic loading in A step and B step were 2. 3kgCODCr/m3. d and 3. 3kgCODCr/m3. d, respectively. The effluent could meet the national discharge standards. The operational cost of this process was less than that of chemical coagulation-biological process.