摘要
对氯霉素生产废水的厌氧生物处理作了研究，结果表明：（１）氯霉素生产废水的平均ＣＯＤ浓度高达３０６４８ｍｇ／Ｌ，平均ＢＯＤ５的浓度仅为７７１９ｍｇ／Ｌ，ＢＯＤ５／ＣＯＤ比值为０．２５３。从ＢＯＤ５／ＣＯＤ比值和降解动力学来评定，氯霉素生产废水属于生物处理可行性较难的工业废水。（２）石灰兼备中和酸性与去除一定量ＣＯＤ的双重作用，可用于该废水的预处理。（３）由于基质的抑制性，在反应器的操作中，应将废水ＣＯＤ浓度控制在６０００ｍｇ／Ｌ以下。（４）反应器的运试结果良好：平均水力停留时间１．００天，平均进水ＣＯＤ浓度４６１３ｍｇ／Ｌ，平均出水ＣＯＤ浓度１０６７ｍｇ／Ｌ，平均ＣＯＤ去除率７７％，ＢＯＤ５去除率达９５％以上，平均容积ＣＯＤ负荷和容积产气率分别为４．６７ｋｇ／ｍ３和０．９９ｋｇ／ｍ３沼气的甲烷含量为７２％。
A study of anaerobic biotreatment of chloromycetin wastewater was carried out.The results showed that(1)The average COD and BOD 5 concentration of chloromycetin wastewater reached 30648mg/l and 7719mg/L respectively.Judged by the ratio of BOD 5 to COD and degradation kinetics,the wastewater was not easy to be treated biologically.(2)Calcium oxide can remov some COD as well as neutralize the acid and could therefore be used in the pretreatment.(3)Because of the inhibition from substrate,the COD concentration of wastewater should be controlled below 6000mg/L.(4)The anaerobic reactor performance was good and some operation parameters were as follows:average HRT 1 day;influent COD 4613mg/L;effluent COD 1067mg/L;average COD removal 77%;BOD 5 removal above 95%;average volumetric COD loading rate and volumetric biogas production 4.67kg/m 3·d and 0.99kg/m 3·d, respectively;methane content of biogas 72%.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
1999年第2期149-155,共7页
Acta Energiae Solaris Sinica
