co.per has long been utilized as a disinfectant for bacteria,but its impact on microbial co.munities attached to the steel surface in seawater remains *** the present study,3 mooring chain steels of different co.per c...
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co.per has long been utilized as a disinfectant for bacteria,but its impact on microbial co.munities attached to the steel surface in seawater remains *** the present study,3 mooring chain steels of different co.per co.tents are subjected to a 3-month marine field exposure,and the co.rosion rate increases in the order of BR5 steel(without co.per)steel(0.8%co.per)steel(0.4%co.per).The microbial co.munity results show that co.per introduction does not result in an obvious change in microbial quantity,but it alters the diversity,richness,and structure of microbial co.munities due to the variation in co.per-resistance of different ***5 CuH steel holds microbial co.munities with the highest percentage of some well-known co.rosive microbes including sulfate-reducing bacteria,sulfuroxidizing bacteria,and iron-oxidizing bacteria,but possesses the lowest co.munity diversity/richness owing to the toxicity of *** microbial co.munity diversity/richness is stimulated by the low-co.per co.tent of BR5 CuL steel,and this steel also carries an intermediate proportion of such co.rosive *** well-known co.rosive bacteria and microbial co.munity diversity/richness seem to be involved in the co.rosion acceleration of co.per-bearing mooring chain steels.
As the largest steel-producing co.ntry, China’s steel industry has experienced rapid development in terms of production level and quality. Owing to the high co.sumption of co.l in the iron and steel industry, air pol...
As the largest steel-producing co.ntry, China’s steel industry has experienced rapid development in terms of production level and quality. Owing to the high co.sumption of co.l in the iron and steel industry, air pollutants and carbon dioxide(co.) show similar emission properties in flue gas. In view of the co.laborative reduction of pollution and carbon emissions, the emission standards for pollutants and carbon were first analyzed, suggesting that carbon emission standards for the iron and steel industry should be accelerated. A co.laborative technology system for the reduction of pollution and carbon emissions from the iron and steel industry in China is demonstrated, co.sisting of(1) optimization of present ultra-low emission technology,(2) low-carbon innovation for present production processes,(3) steel production process reengineering, and(4) carbon capture, utilization, and storage(CCUS). Finally, the technical prospect for co.laborative reduction of pollution and carbon emissions from the iron and steel industry in China is suggested to support high-quality green development in this industry.
<正>In the seco.d half of 2004 nanjingiron & steelco.(NISco.started up a new plate production facility based on co.verter steel making,wide slab casting,walking beam furnace and rolling by a co.bined plate/Stec...
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<正>In the seco.d half of 2004 nanjing iron & steel co.(NISco.started up a new plate production facility based on co.verter steel making,wide slab casting,walking beam furnace and rolling by a co.bined plate/Steckel mill. The co.cept challenges the caster to produce 150 mm thick slabs up to 3.250 m wide at a high quality level, which are direct charged into the reheat *** variety of steel grades is demanding including pipe grades X65 and X80. In particular the sensitive peritectic steel grades at large slab width showed the most difficulties in regard to surface *** features together with casting technologies and liquid steel quality that have co.tributed to the successful production of defect-free slabs will be *** influence of cast parameters on slab quality at stable high steel throughput up to 5.5 tons per minute will be systematically shown gathered from several test cast sequences of peritectic steel in the range of 0.10 to 0.14% carbon including micro-alloying elements.
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