摘要
对采用厌氧膨胀颗粒污泥床(EGSB)反应器处理的半化学草浆制浆废水的运行状况进行了分析,结果表明,反应器以VLR(容积负荷)2.192 kg COD/(m^3·d)进行启动,在以浓度和流量逐渐提升VLR的过程中,CODCr去除率一直保持在70%以上;最小水力停留时间(HRT)可缩短至4.9 h,最大VLR可达到25.820 kg COD/(m^3·d),CODCr去除率稳定在68.8%-78.0%范围内;当出水pH值高于进水时,出水回流可以减少调节进水pH值的用碱量。
The study results of the treatment of effluent from semi-chemical straw pulping with expanded granule sludge bed(EGSB) reactor indicated that the EGSB reactor started-up at the volume loading rate of 2.192 kg COD/(m^3·d),its CODCr removal rate maintains above 70% in the process of increasing volume loading rate gradually.The minimum HRT can be shorten to 4.9 h,the maximum VLR can be reached to 25.820 kg COD/(m^3·d) and the CODCr removal rate can be kept on 68.8%-78.0%;The consumption of alkali using for influent pH adjustment can be reduced by circulating the effluent when the pH value of the effluent is higher than that of the influent.
出处
《中国造纸学报》
CAS
CSCD
北大核心
2010年第3期42-46,共5页
Transactions of China Pulp and Paper
关键词
EGSB反应器
半化学草浆制浆废水
运行状况
影响因素
expanded granule sludge bed reactor
semi-chemcial straw pulping effluent
running status
influencing factor