On the other hand, as iron powder surface modification method, the copperized replacement technics is simple, low cost, fast sediment speed and has little environmental pollution.
另一方面,置换镀铜作为铁粉表面改性方法,工艺简单,沉积速度快,成本低,工艺流程中环境污染小。
3
Trough the study of the vertical distribution characteristics of organochlorine pesticides in the sediment core, the pollution history of organochlorine pesticides in Quanzhou Bay was discussed.