CAJ | 학술논문

通过城镇污水处理厂进出水水质调查,分析了我国城镇综合污水处理前后的可生化性特征.结果显示,我国城镇综合污水原水的B/C遵循正态分布规律,平均值约为0.4,整体上可生化性较好,并且受水资源条件与经济发展水平的影响,存在明显的地区差异与季节性变化规律;经处理后尾水的B/C则与不同的污水处理工艺有关,平均值约为0.28,可生化性明显降低.
통과성진오수처리엄진출수수질조사,분석료아국성진종합오수처리전후적가생화성특정.결과현시,아국성진종합오수원수적B/C준순정태분포규률,평균치약위0.4,정체상가생화성교호,병차수수자원조건여경제발전수평적영향,존재명현적지구차이여계절성변화규률;경처리후미수적B/C칙여불동적오수처리공예유관,평균치약위0.28,가생화성명현강저.
A comprehensive analysis of biodegradability features for municipal sewage in China was given based on the investigation on influent and effluent quality of municipal sewage treatment plants. According to the analysis results the average B/C of raw sewage was about 0.40 with normal distribution showing high overall biodegradability. Significant regional differences and seasonal changes of biodegradability were also found because of the different conditions of water resources and the level of economic development. However, average B/C of effluent from municipal sewage treatment plants was as low as 0.28 showing a significant decrease of biodegradability in relation with different treatment technology.