Based on the analysis of waste sidiment from making bleaching liquid in composition,it is found that the waste sidiment has purification capacity for the Straw_pupl mid_term wastewater.

Preparation of desulfurizing absorbent from mixture of soda-manufacturing waste residue as well as calcium carbide residue, influencing of different mixing ratios on the specific surface area and desulfurizing capacity of absorbent are discussed.

Study on the leaching toxicity and safe disposal of manganese sulphate waste residue;

Study on the extraction procedure toxicity and leaching property of manganese sulfate waste residue;

Improvement of Determination Method of Pb,Cr,Ba and As in Waste Residue of Printing Note Factory;

The paper summarizes the treatment methods of overhaul waste residues in tanks generated in the production process of electrolytic aluminum plant and makes a detail analysis on causes of the overhaul waste residues,environmental effects,transportation mode,selection of slag yard site,stockpiling method and recycling of waster residues for reuse and so forth.

Physicochemical analysis,leaching toxicity test and biotoxicity tests were used to investigate the leaching toxicity and biotoxicity of waste residues from MoO3 production under simulated acid rain conditions.

The paper summarizes the treatment methods of overhaul waste residues in tanks generated in the production process of electrolytic aluminum plant and makes a detail analysis on causes of the overhaul waste residues, environmental effects, transportation mode, selection of slag yard site, stockpiling method and recycling of waster residues for reuse and so forth.