scholarly journals Optimization of pH in Ammonia, Heavy Metals, and Chlorophyll-a Removal by using Electric Arc Furnace Slag and Activated Carbon Cassava Peel

2017 ◽  
Vol 103 ◽  
pp. 06009
Author(s):  
Nabilah Zayadi ◽  
Shareen Hwong Shiaw Ling ◽  
Norzila Othman ◽  
Rafidah Hamdan
Keyword(s):  
Heavy Metals ◽  
Activated Carbon ◽  
Chlorophyll A ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag ◽  
Cassava Peel

scholarly journals Removal of Heavy Metals from Steel Making Waste Water by Using Electric Arc Furnace Slag

2012 ◽  
Vol 9 (4) ◽  
pp. 2557-2564 ◽  
Author(s):  
C. L. Beh ◽  
T. G. Chuah ◽  
M. N. Nourouzi ◽  
T. Choong
Keyword(s):  
Heavy Metals ◽  
Fixed Bed ◽  
Oxygen Demand ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Fixed Bed Column ◽  
Steel Making ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

This work investigated the reduction of chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS) and the concentration of heavy metals of wastewater from a steel making plant. Adsorption experiments were carried out by electric arc furnace slag (EAFS) in a fixed-bed column mode. The raw wastewater did not meet the standard B limitations, having high values of BOD, COD, TSS, Iron, Zinc, Manganese and Copper. After passing through the fixed bed column, BOD, COD and TSS values decreased to 1.6, 6.3 and <2 mgL-1, respectively while the concentration of Iron, Zinc, Manganese and Copper were 0.08, 0.01, 0.03 and 0.07 mgL-1, respectively. The results confirmed that EAFS can be used as an efficient adsorbent for producing treated water that comply with the Standard B limitations for an industrial effluent.

scholarly journals Effects from Converter Slag and Electric Arc Furnace Slag on Chlorophyll a Accumulation of Nannochloropsis sp.

2021 ◽  
Vol 11 (19) ◽  
pp. 9127
Author(s):  
Tianji Liu ◽  
Yitong Wang ◽  
Junguo Li ◽  
Qing Yu ◽  
Xiaoman Wang ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Converter Slag ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Chlorophyll A Concentration ◽  
Leaching Solution ◽  
New Ideas ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

The effects of Ca2+ in converter slag and electric arc furnace slag leaching solutions on CO2 content, the effects of CO2 content in solutions on the accumulation of chlorophyll a of Nannochloropsis sp., and the mechanisms were studied. Results showed that addition of 50 mg/L converter slag leaching solution and 400 mg/L electric arc furnace slag leaching solution (lower than 50 vol% concentration) promoted the accumulation of chlorophyll a of Nannochloropsis sp., while an increased concentration of 70 vol% inhibited its accumulation. The highest concentration of chlorophyll a was obtained on the addition of 10 vol%. With 10 vol% leaching solutions added, chlorophyll a concentration for converter slag reached 4.2 mg/L, 1.45 times as much as that of pure F/2 medium, and chlorophyll a concentration for electric arc slag reached 3.2 mg/L, 1.10 times as much as that of pure F/2 medium. Under the same addition proportion, the promoting or inhibiting effect from converter slag on the accumulation of chlorophyll a of Nannochloropsis sp. was more obvious than that for electric arc furnace slag. The reason for the promotion of chlorophyll a accumulation of Nannochloropsis sp. was that an increase of Ca2+ in the solutions led to an increase of CO2, thereby promoting the photosynthetic rate of microalgae. The study provided new ideas for the green application of solid waste and industrial production of microalgae.

Effects of fiber material in concrete manufactured with electric arc furnace slag: Experimental and numerical study

2022 ◽  
Vol 316 ◽  
pp. 125553
Author(s):  
Aratz Garcia-Llona ◽  
Vanesa Ortega-Lopez ◽  
Ignacio Piñero ◽  
Amaia Santamaría ◽  
Miquel Aguirre
Keyword(s):  
Numerical Study ◽  
Fiber Material ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

Improvement of a hydrometallurgical process for recovering Mn from electric-arc furnace slag

2020 ◽  
Vol 159 ◽  
pp. 106644
Author(s):  
Ting Su ◽  
Rui Bian ◽  
Yu Chen ◽  
Suiyi Zhu ◽  
Yang Huo ◽  
...  
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Hydrometallurgical Process ◽  
Arc Furnace ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag
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