中国环境科学
中國環境科學
중국배경과학
CHINA ENVIRONMENTAL SCIENCE
2014年
3期
697-704
,共8页
郭建宁%陈磊%张锡辉%王凌云%陶益%盛德洋
郭建寧%陳磊%張錫輝%王凌雲%陶益%盛德洋
곽건저%진뢰%장석휘%왕릉운%도익%성덕양
臭氧%陶瓷膜%生物活性炭%微生物群落结构%饮用水
臭氧%陶瓷膜%生物活性炭%微生物群落結構%飲用水
취양%도자막%생물활성탄%미생물군락결구%음용수
ozone%ceramic membrane%biological activated carbon%microbial community structures%drinking water
利用处理量为120m3/d的臭氧/陶瓷膜-生物活性炭(BAC)组合工艺处理微污染原水,对工艺性能和BAC中的微生物多样性和种群结构进行了研究。结果显示,组合工艺可有效去除微污染原水中的有机物和氨氮。臭氧曝气提高了溶解氧浓度,改善了后续 BAC 工艺对氨氮的去除效果。组合工艺对氨氮和CODMn的总去除率分别约为90%和84%,其中BAC在污染物的去除中发挥了重要作用。组合工艺和传统工艺中BAC床层共检测到36个门类的细菌。与传统BAC工艺相比,臭氧/陶瓷膜降低了后续BAC中微生物群落结构的多样性和均匀度。组合工艺BAC中存在丰度较高的亚硝化单胞菌属和硝化螺旋菌属,可能对氨氮的去除具有重要的作用。臭氧/陶瓷膜对后续BAC中致病菌和条件致病菌有很好的预处理和抑制作用,显著降低了其相对丰度,提高了饮用水的生物安全性。
利用處理量為120m3/d的臭氧/陶瓷膜-生物活性炭(BAC)組閤工藝處理微汙染原水,對工藝性能和BAC中的微生物多樣性和種群結構進行瞭研究。結果顯示,組閤工藝可有效去除微汙染原水中的有機物和氨氮。臭氧曝氣提高瞭溶解氧濃度,改善瞭後續 BAC 工藝對氨氮的去除效果。組閤工藝對氨氮和CODMn的總去除率分彆約為90%和84%,其中BAC在汙染物的去除中髮揮瞭重要作用。組閤工藝和傳統工藝中BAC床層共檢測到36箇門類的細菌。與傳統BAC工藝相比,臭氧/陶瓷膜降低瞭後續BAC中微生物群落結構的多樣性和均勻度。組閤工藝BAC中存在豐度較高的亞硝化單胞菌屬和硝化螺鏇菌屬,可能對氨氮的去除具有重要的作用。臭氧/陶瓷膜對後續BAC中緻病菌和條件緻病菌有很好的預處理和抑製作用,顯著降低瞭其相對豐度,提高瞭飲用水的生物安全性。
이용처리량위120m3/d적취양/도자막-생물활성탄(BAC)조합공예처리미오염원수,대공예성능화BAC중적미생물다양성화충군결구진행료연구。결과현시,조합공예가유효거제미오염원수중적유궤물화안담。취양폭기제고료용해양농도,개선료후속 BAC 공예대안담적거제효과。조합공예대안담화CODMn적총거제솔분별약위90%화84%,기중BAC재오염물적거제중발휘료중요작용。조합공예화전통공예중BAC상층공검측도36개문류적세균。여전통BAC공예상비,취양/도자막강저료후속BAC중미생물군락결구적다양성화균균도。조합공예BAC중존재봉도교고적아초화단포균속화초화라선균속,가능대안담적거제구유중요적작용。취양/도자막대후속BAC중치병균화조건치병균유흔호적예처리화억제작용,현저강저료기상대봉도,제고료음용수적생물안전성。
Micro-polluted raw water was treated using a pilot plant with a scale of 120m3/d. The performance of ozone/ceramic membrane-biological activated carbon (BAC) process was studied. The diversity and detailed structure of microbial community of the microorganisms in BAC were also investigated. The hybrid process removed organic matter and ammonia effectively. The aeration with ozone-containing gas increased the dissolved oxygen in water flow and improved the removal of ammonia. The total removal efficiencies of ammonia and CODMn were 90% and 84%, respectively. The BAC played an important role in the final removals of pollutants. The microorganisms in the BAC bed were divided into 36phyla. Compared with the conventional BAC process, ozone/ceramic membrane in the hybrid process decreased the diversity and evenness of the microorganisms in the BAC. There were abundant Nitrosomonas and Nitrospira in the BAC in the hybrid process, which probably strengthen the ammonia removal. Moreover, the pathogenic bacteria and opportunistic pathogen were significantly inhibited by ozone/ceramic membrane, resulting in the decrease of their relative abundances in the following BAC. Therefore the biological safety of drinking water was enhanced significantly.