造纸漂白废水对生物厌氧过程抑制作用的研究

本文研究了各浓度及经絮凝、超滤处理后漂白废水对厌氧过程甲烷菌的抑制作用，絮凝处理与超滤相比更可有效地降低漂白肇水对厌氧生物过程的毒性，表明漂白废水对厌微生物折抑制不仅来源于废水中低分子量物质，而且与分子量大于１０００的树脂类化合物高分子物质有关。对厌氧甲烷菌在漂白废水驯化过程的研究表明，采用低浓度下起动再逐步提高进水浓度的方式可使漂白废水厌氧污泥的驯化时间明显缩短。

STUDY OF INHIBITORY EFFECTS OF CEH BLEACHING EFFLUENTS ON ANAEROBIC BACTERIAS

s:An investigation of the inhibition exerted by CEH bleaching effluents on anaerobic bacteria was made using anaerobic serum bottle techniques. Treatment of the wastewater with flocculent can improve more significantly it's biodegradation compared with ultrafiltration. The inhibition has been showed to be related with not only the low molecule weight but also the high molecule weight wood resin compounds, the ratio of AOX/COD of the effluent treated with flocculent is lager than with ultrafiltration, but the inhibition Index is smaller, which shows that the inhibition is not proportion to the AOX. The way of acclimation of wastewater starting with low concentration, then gradually increasing its concentration can reduces the time of acclimation significantly.