Phosphorus Bioavailability in a Phosphorus-Abundant System under Repeated Sediment Resuspension Conditions

Variation of bioavailable phosphorus ( BAP )concentrations,i.e.,the sum of dissolved total phosphorus (DTP)and bioavailable particulate phosphorus ( BAPP),was investigated in a phosphorus (P)-abund...     

基于环境工程专业探讨降低实验室危化品事故

高校实验室是进行实验教学和科研的地方,是培养创新性能力的重要场所。随着危化品使用种类及数量的增多,如何实现实验室安全高效地运转是各高校面临的难题。文中针对就环境工程专业的特点,探讨实现危化品使用数量和种类减少的策略,以及危化品管理制度中有待完善的内容,使实验室尽最大可能地降低危化品事故的风险。     

Variation of Phosphorus Bioavailability in the Re-suspended Sediments

The variation of phosphorus(P)bioavailability in terms of water soluble P(WSP),readily desorbable P(RDP),algal available P(AAP),and NaHCO3 extracting P(Olsen-P)in the re-suspended sediments was investigated in laboratory experiments,in which the waters and sediments were taken from campus canal.The results indicate that sediment re-suspension can promote the migration of soluble reactive P(SRP)from overlying water to sediments.The contents of AAP and Olsen-P in re-suspended sediments reduced obviously,where...