摘要

從制革(ge)污泥(ni)中(zhong)分離(li)出一(yi)株異養(yang)微(wei)生(sheng)(sheng)物(wu),經鑒定屬于紅酵(jiao)母(mu)菌屬(Rhodotorulasp.)R30,測定菌株R30的適(shi)宜生(sheng)(sheng)長(chang)pH范圍為3～7,但能(neng)耐(nai)受(shou)pH2.5至(zhi)1.5的酸性(xing)環境,最適(shi)生(sheng)(sheng)長(chang)溫度28℃.酵(jiao)母(mu)R30在(zai)污泥(ni)水(shui)溶(rong)性(xing)有(you)機物(wu)(DOM)中(zhong)培(pei)養(yang)96h,水(shui)溶(rong)性(xing)有(you)機碳(DOC)從1485mg/L降至(zhi)345mg/L,菌數達4.8×107mL-1.將污泥(ni)預酸化(hua)至(zhi)pH6.5,在(zai)進行(xing)污泥(ni)的生(sheng)(sheng)物(wu)淋(lin)(lin)(lin)濾(lv)過程(cheng)中(zhong),添(tian)(tian)加(jia)酵(jiao)母(mu)處(chu)理與不添(tian)(tian)加(jia)酵(jiao)母(mu)處(chu)理的對照相比,淋(lin)(lin)(lin)濾(lv)時(shi)間減少(shao)了4d,淋(lin)(lin)(lin)濾(lv)周(zhou)期顯(xian)著(zhu)縮短,在(zai)7d的淋(lin)(lin)(lin)濾(lv)時(shi)間內,重金屬Cr的溶(rong)出率提高39%.

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