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Nearly equiatomic nickel–titanium (NiTi) alloy is an ideal implant biomaterial because of its shape memory effect, superelasticity, low elastic modulus as well as other desirable properties. However, it is prone to infection because of its poor antibacterial ability. The present work incorporated Cu into Ni–Ti–O nanopores (NP–Cu) anodically grown on the NiTi alloy to enhance its antibacterial ability,...
This study provided a deep insight into the impacts of trace elements (Mn2+, Zn2+ and Cu2+) on nitritation-anammox process. For short-term exposure, all the three elements could improve the nitrogen removal rate (NRR) and the optimal concentrations were 2.0 mg/L, 2.0 mg/L and 0.5 mg/L for Mn2+, Zn2+ and Cu2+, respectively. Accordingly, the NRRs were enhanced 54.62%, 45.93% and 44.09%. The long-term...
In this paper, with the 0∼100cm soil of Tongliao sewage irrigation farmland for soil column test, we study the vertical distribution of heavy metals of Cr, Cu and Hg in different irrigation concentrations. The result showed that with the increase of irrigation concentration, the distribution of Cr and Cu content is: W1 <initial <W2 <W3 <W4. While Hg is: W1 <W2...
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