The application of manganese mineral filter technology to the iron and manganese removal from the steel wastewater recycling treatment has been studied.

The entry-exit inspection and quarantine authorities should carry further research and enhance the implementation of the national compulsory standards for iron and steel scraps;

Investment in China's iron and steel scraps industry has good prospects

Reviewed the survey of domestic steel scraps in 2007, the consumption situation of iron and steel scraps, the changing situation of steel scraps import.

On the condition of guaranteeing the quality of sinter and stability of productive process, the sintering process of adding ferruginous waste such as steel-making slag, iron oxide scale and dust separately is analyzed.