[Experimental teaching design of instrument analysis for undergraduate study: detection of bifenthrin pesticide residues in tea by response surface methodology-optimized QuEChERS combined with gas chromatography-mass spectrometry]. [PDF]
Gu CX.
europepmc +1 more source
[Case-based teaching with both positive and negative examples in undergraduate analytical chemistry laboratory: determination of six nitrogen-containing pesticides in environmental samples by solid-phase microextraction-high performance liquid chromatography]. [PDF]
Zhang J +4 more
europepmc +1 more source
[Determination of ethylene oxide and acetaldehyde in petrochemical exhaust based on thermal desorption- gas chromatography-mass spectrometry]. [PDF]
Li YJ.
europepmc +1 more source
天然气净化废水水质水量波动大,且含有大量难降解物质,一直难以稳定达标。本工程采用水解酸化+两级SBR法工艺处理天然气净化废水,在进水均值ρ(COD)=943 mg/L、(ρBOD)=268 mg/L、ρ(NH3-N)=30.5 mg/L时,出水均值ρ(COD)=37.4 mg/L、ρ(BOD)=4.7 mg/L、ρ(NH3-N)=1.9 mg/L,完全达到GB8978-1996《污水综合排放标准》一级标准,工程运行稳定。出水回用于循环冷却、绿化、冲厕、道路冲洗等,回用率达到100 ...
张敏 +4 more
core
[Determination of eight per- and polyfluoroalkyl substances in seawater using dispersive membrane extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Ren Z +5 more
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针对焦化废水现有技术难以达标等问题,研发了"脱硫废液无害化处理-生物处理-深度处理-回用处理"集成技术并进行了工程示范,实现厂区废水梯级回用及"零排放"。通过真空碳酸钾脱硫废液无害化处理工艺的开发和专用药剂应用,可分别去除废液中99%以上的硫化物和90%以上的氰化物;研究了基于好氧生物脱氮稳定控制和反硝化强化难降解有机物去除的A~2-O~2强化生物脱氮技术,COD和氨氮去除率在95%以上;开发专用高效脱氰混凝剂,COD去除率达到40%以上,总氰化物降低到0 ...
全宇 +4 more
core
[Functional characterization of double-negative T cells isolated from leukoreduction filter residues]. [PDF]
Xiang Z +6 more
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该研究首次将复合垂直流人工湿地同池塘养殖结合.通过构建养殖-湿地生态系统,验证人工湿地对水产养殖用水和废水净化与回用的可行性。近9个月的新建人工湿地运行结果表明,水力负荷从313、469、625mm/d增加到781mm/d,人工湿地对TSS、CODcr和BOD5去除率的变动范围分别为80.5%~82.9%、45.2%~64.2%和61.0%~77.0%,对NH4^+-N、NO3^-—N、TN去除率的变动范围分别为51.5%~67.8%、-90.6%~40.0%和29.1%~68.6 ...
贺锋 +4 more
core
[Evolution of DFU treatment strategies: from simple coverage with traditional dressings to active modulation with smart materials]. [PDF]
Chen XL.
europepmc +1 more source

