Recovery of phosphate and ammonia from wastewater via struvite precipitation using spent refractory brick gravel from steel industry

2022 ◽  
Vol 302 ◽  
pp. 114110
Author(s):  
Dong-Ying Li ◽  
Yi-Chin Cho ◽  
Ming Huang Hsu ◽  
Yi-Pin Lin
Author(s):  
N. G. Zinov’eva

Structure of the Russian export and import of steel industry products presented by results of 9 months of 2019 operation. It was shown, that the total share of pig iron, ferroalloys and semi-products (40.3%) in the ferrous metals export from Russia is practically the same as the share of rolled products and steel pipes (39.4%), whereas the shares in the import structure were 7.7 and 75% accordingly. The share the far abroad countries in the Russian export and import of finished steel products (in natural terms) accounted for 80.6 and 28.7% accordingly, while the share of CIS countries – 19.4 and 71.3% accordingly. For 9 months of 2019 the Russian export of semi-products declined by 10.9% comparing with the analogue period of 2018 and accounted for 10.9 m tons. 54.6% of the total export shipping of semi-products were directed to Mexico, Turkey, Egypt and Taiwan. Within the nearest years the Russian export of semi-products and billets, in particular, will be effected by the further development of the semi-products production in in the countries of Middle East, Turkey, Vietnam and India. The domestic market remained to be more attractive for many Russian companies. For the 9 months of 2019, export of long and flat products accounted for 3 and 5.7 m tons accordingly, declining comparing with the analogue period of the previous year by 11 and 15.6% accordingly. Import of long and flat products decreased by 12 and 0.5%, accounting for 1.0 and 2.9 m tons accordingly. By the results of 9 months of 2019, import declined and export shipping of coated sheet increased. Taking into account the expansion of steel grades assortment by Russian plants, increase of capacities for production of sheet with different coatings, this tendency is likely to remain.


Author(s):  
L. Ometto ◽  
S. Challapalli ◽  
M. Polo ◽  
G. Cestari ◽  
A. Villagrossi ◽  
...  

2016 ◽  
Vol 1 (6) ◽  
pp. 341-347
Author(s):  
Yuri R. Fischer ◽  
Ivan V. de Melo ◽  
Luiz Carlos S. Silva ◽  
Victor A. Wanderley

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