SMM7 March 3: recently, the Indonesian Ministry of Industry, through its R & D department, is looking for the best solution to deal with nickel slag so that it can be used as industrial raw material. This work is in line with good environmental management policies or circular economy plans.
"in the context of dealing with nickel slag, our center already has sufficient technology, equipment and human resources for testing, research, standard-setting and consulting activities," DoddyRahadi, head of the (BPPI) of the Ministry of Industrial Research and Development, said in a statement.
Four R & D departments of the Ministry of Industry play a direct role in the treatment of nickel slag, namely, (BBLM), Bandung Ceramic Center (BBK), Bandung Materials and Technology Center (B4T) and Industrial pollution Prevention Technology (BBTPPI).
According to DoddyRahadi, Indonesia currently produces 13 million tons of nickel slag a year. Metal slag has great potential and can be used as raw materials for cement, construction, road infrastructure, as well as for recycling of iron and steel raw materials. At the end of 2019, the Indonesian national standard (SNI) has been released for the selection of nickel slag in electric furnace. The SNI is also prepared by the Ministry of Industry to support the development of nickel slag standards and as a solution for nickel slag management.
Meanwhile, industry minister DiniHanggandari said that in Japan, the United States and the European Union and other countries and regions, nickel, aluminum and copper slag is not classified as B3 waste, but as raw materials. At present, some smelting industries have used slag for internal use, but compared with the production of nickel slag, the amount of utilization is very small. Therefore, a win-win solution is needed without violating the applicable rules.
AchmadGunawanWidjaksono, director of the B3 waste Management and non-B3 waste Verification Bureau of the Ministry of Environment and Forestry and director of the General Administration of waste and B3 Management, said that according to Article 54PP 101 of 2014, the use of B3 waste can be carried out in the form of alternative raw materials, such as energy and raw materials according to science and technology.
DededPermadiSjamsudin, director of roads and bridge engineering, director of the Highway Bureau of the Ministry of Public works and Public works, said that nickel slag has compounds similar to chemicals in natural aggregates and is often used as building materials, so it has the potential to be used as building materials.
Meanwhile, AladinSianipar, representing the Indonesian Association of processing and Refining companies (AP3I), mentioned that some examples of products made from nickel slag include matches, precast and precast concrete, subgrade and fields, soil modifiers, growth media and fertilizers, mortars as well as slag cement, Portland composite cement and cement geopolymers.
DradjadIrianto, a professor at the School of Industrial Technology at Bandung Institute of Technology, said that nickel slag is the wealth of most machinable and research materials in Indonesia, thus providing value-added to the Indonesian country. The use of nickel slag is expected to stimulate the productivity of the industrial sector and enable it to continue to play a role in promoting the national economy.
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