本文设计了一种新型复合微生物,并结合化学沉淀法,构建了联合污水处理工艺。在优化实验条件下(30℃、p H 7.0、搅拌速率150r·min^(-1)、沉淀剂剂量150mg·L^(-1)),系统评估了COD、氮和磷的去除效率,并通过数据分析揭示了微生...本文设计了一种新型复合微生物,并结合化学沉淀法,构建了联合污水处理工艺。在优化实验条件下(30℃、p H 7.0、搅拌速率150r·min^(-1)、沉淀剂剂量150mg·L^(-1)),系统评估了COD、氮和磷的去除效率,并通过数据分析揭示了微生物与化学沉淀的协同作用机制。实验结果表明,联合工艺在24h内对COD、氮和磷的去除率分别达到81.5%、78.6%和85.0%。微生物通过吸附与代谢显著降低有机物和氮、磷浓度,而化学沉淀剂则与污染物形成絮状沉淀物,加速了固液分离过程。此外,研究表明微生物分泌的胞外聚合物(EPS)能够促进絮体的形成并提高其稳定性,从而进一步增强了处理效果。展开更多
We report the photo-mediated 1,2-aryl migration of 2‑chloro-1-arylpropanones to 2-arylpropionic acids using HCOONa as an acid scavenger.This pragmatically focused study obviates the multiple-step sequence in the indus...We report the photo-mediated 1,2-aryl migration of 2‑chloro-1-arylpropanones to 2-arylpropionic acids using HCOONa as an acid scavenger.This pragmatically focused study obviates the multiple-step sequence in the industrially employed,ZnO-promoted rearrangement strategy,and offers rapid access to various 2-arylpropionic acids under environmentally friendly conditions.Furthermore,the successful transfer of this batch photochemistry to a continuous flow platform led to improved scalability and enabled the gram-scale synthesis of loxoprofen.展开更多
A more feasibly convergent synthesis of selective estrogen receptor degrading agent(S)-8-(4-((1-(3-fluoropropyl)-pyrrolidin-3-yl)oxy)phenyl)-7-(4-hydroxyphenyl)-5,6-dihydronaphthalen-2-ol was reported,featured with co...A more feasibly convergent synthesis of selective estrogen receptor degrading agent(S)-8-(4-((1-(3-fluoropropyl)-pyrrolidin-3-yl)oxy)phenyl)-7-(4-hydroxyphenyl)-5,6-dihydronaphthalen-2-ol was reported,featured with concise work up and absence of regioselectivity dilemma.展开更多
文摘本文设计了一种新型复合微生物,并结合化学沉淀法,构建了联合污水处理工艺。在优化实验条件下(30℃、p H 7.0、搅拌速率150r·min^(-1)、沉淀剂剂量150mg·L^(-1)),系统评估了COD、氮和磷的去除效率,并通过数据分析揭示了微生物与化学沉淀的协同作用机制。实验结果表明,联合工艺在24h内对COD、氮和磷的去除率分别达到81.5%、78.6%和85.0%。微生物通过吸附与代谢显著降低有机物和氮、磷浓度,而化学沉淀剂则与污染物形成絮状沉淀物,加速了固液分离过程。此外,研究表明微生物分泌的胞外聚合物(EPS)能够促进絮体的形成并提高其稳定性,从而进一步增强了处理效果。
基金Financial support from the National Natural Science Foundation of China(No.22077018)is gratefully acknowledged.
文摘We report the photo-mediated 1,2-aryl migration of 2‑chloro-1-arylpropanones to 2-arylpropionic acids using HCOONa as an acid scavenger.This pragmatically focused study obviates the multiple-step sequence in the industrially employed,ZnO-promoted rearrangement strategy,and offers rapid access to various 2-arylpropionic acids under environmentally friendly conditions.Furthermore,the successful transfer of this batch photochemistry to a continuous flow platform led to improved scalability and enabled the gram-scale synthesis of loxoprofen.
文摘A more feasibly convergent synthesis of selective estrogen receptor degrading agent(S)-8-(4-((1-(3-fluoropropyl)-pyrrolidin-3-yl)oxy)phenyl)-7-(4-hydroxyphenyl)-5,6-dihydronaphthalen-2-ol was reported,featured with concise work up and absence of regioselectivity dilemma.
