以湘西某经济开发区新建污水厂为例,介绍了该工程工艺流程、设计参数及设计特点.分析了工程运行过程中实际进出水水质情况.其污水处理工艺为“预处理+水解酸化池+AAO+二沉池+高密度沉淀池+生物炭滤池+紫外消毒”,污水经处理后主要指标COD、BOD5 、SS、NH3-N、TN、TP等可稳定达到《生活污水处理排放标准》(GB 19818-2002)一级A标准;污泥处理工艺采用“污泥浓缩+污泥调理+高压隔膜板框”,污泥含水率压至50％以下后填埋.污水厂投资为3 576.7元/m3,运行费用为0.434元/m3.

以某商业综合体为例,探讨了大型综合性建筑内消火栓、水喷淋、大空间智能水炮、七氟丙烷、超细干粉及建筑灭火器等灭火系统的设计方法。

It's a good news for the people to implement state standard Ⅲ. China's "11th Five-Year Plan" proposed that energy consumption per GDP declined 20% and a 10% reduction in emissions of selected pollutants during the "11th Five-Year Plan. In such circumstances, to implement strictly state standards Ⅲ is the important measure to build a harmonious society.