Emission Standards Of Pollutants From Nonferrous Metals Industry-Sb

There are many problems existing in some current national environmental standards in our country, such as the strict extent of technology guideline holding inaccurately, combining with technology and economic condition incompactly, the classification guidelice not strong, the excuting effect not ideal, the forward looking not enough, and the social influence relatively infirmness. On the other hand, with the rapid development of our nonferrous metals industry, the sustaining improvement of production process, the continual advancement of pollution prevention technique and the gradually strictness of environmental protection work request for the nation, current integrated emission standards of pollutants have not adapted to the request of pollutants emission control of nonferrous metals industry. Therefore, it is necessary to constitute a nonferrous metals industrial pollutants emission national standard which is advanced in technology, reasonable in economy, permissible in environment, feasible in practice, and meets the requirements for cleaner production, according to national environmental laws and the characteristics of nonferrous metals industry, integrating with emission and control status quo of nonferrous metals industrial pollutants. And it will offer envrionmental protection technic support for sustainable development and pollutants emission control of nonferrous metals industry.Constituting the environmental standards is an item extremely complex and difficult system engineering, involving many factors, such as the national environmental protection laws, the regulations, the guidelines, the policy, the system, the standards, the specifications, as well as technology, economy, society and so on. These factors not only provide the bases and the safeguards, but also become the restriction condition for constituting the environmental standard.This article regards the antimony(Sb) as the research object, discussing initially the related items of constituting Emission Standards of Pollutants from Nonferrous Metals Industry-Sb (hereafter referred to as this standard) separately from theory and practice respect.As a kind of important nonferrous metal in our country, the mineral resource of Sb is abundant, its products are various in stytle, and it plays a positive role in promoting national economic and social development. But Sb itself also is a pollutant, after reaching or exceeding certain amount, all endangering people, animals and plants. Additionally it is a long process for the environment to naturally degenerate the toxic of Sb and its compounds. Therefore, we must limit its emission in order to control and reduce the hazard to people, animals and plants.It is summarized the present situation and the development tendency of domestic and foreign discharge control laws, regulations and standards revelated to Sb, discussed the theoretical and technology base of constituting this standard, proposed main technical content, and carried on the brief environmental benefit analysis to this standard.The concrete content includes: discussing the goal, the function and the basic attribute of environmental standards, proposing technical principles and methods of constituting this standard, collecting the domestic and foreign industrial production, the pollutants discharge and the treatment data related to Sb, arranging Sb industry mining, the mineral processing and the smelting technical process, introducing the technical process and its technical level used in our country Sb enterprise commonly, analyzing the origin, the composition of Sb industry pollutants, as well as the present processing handling situation, studying the specific request for the present national standards to control the discharge of Sb industry pollutants, commenting the characteristic of all standards and specifications involed among them, pointing out their existent questions, and on this basis, proposing the draft of China National Standard-Emission Standards of Pollutants from Nonferrous Metals Industry-Sb.