Change of Ecological Characteristics Due to Decrease of COD/SO_4^(2-) Ratio During Sulfate-reduction

著录项

• 来源
  《哈尔滨工业大学学报：英文版》 |2004年第2期|151-155|共5页
• 作者

  王爱杰; 任南琪; 刘广民; 杜大仲;

  展开▼
• 作者单位

  School of Municipal and Environmental Engineering;

  Harbin Institute of Technnlogy;

  Harbin 150090;

  China;

  School of Municipal and Environmental Engineering;

  Harbin Institute of Technnlogy;

  Harbin 150090;

  Chinan order to investigate the change of ecological characteristics due to the decrease of COD/SO_4~(2-) ratio during sulfate reduction;

  continuous-flew tests were conducted in an acidogenic sulfate-reducing reactor with molasses wastewater as sole organic carbon source and sodium snlfate as electron acceptor;

  and the change of pH value;

  oxidation reduction potential (ORP);

  volatile fat acids (VFAs);

  alkalinity (ALK) and the predominant populations with COD/SO_4~(2-) ratio decreasing from 4.2 to 2.0 were investigated. The experimental results demonstrated that;

  with decreasing COD/SO_4~(2-) ratio;

  ORP and ALK increased;

  pH value decreased;

  and the proportion of acetic acid in terminal products decreased significantly;

  and a stable -type microbial community with high COD/SO_4~(2-) ratio was converted into a sub -stable -type one with low COD/SO_4~(2-) ratio.;

  展开▼
• 原文格式 PDF
• 正文语种 chi
• 中图分类 技术方法;
• 关键词

  COD; SO4^2-; 生态学性质; 废水处理; 硫酸盐减少; 比率; 连续流检测;

  机译：还原硫酸盐;COD / SO42-比例;生态特性;废水处理;