A Metallurgical Evaluation of Refractory Compounds for Containing Molten Titanium. Part III - Borides and Sulfides

1955 ◽  
Author(s):  
E. J. CHAPIN ◽  
W. H. FRISKE
Keyword(s):  
Refractory Compounds ◽  
Metallurgical Evaluation

Nutrient Speciation and Refractory Compounds in Water Quality Models

2016 ◽  
Vol 15 (0) ◽  
pp. 9781780408323-9781780408323
Author(s):  
D. L. Clark ◽  
G. Hunt ◽  
M. S. Kasch ◽  
P. J. Lemonds
Keyword(s):  
Water Quality ◽  
Quality Models ◽  
Refractory Compounds ◽  
Water Quality Models

Abrasive power of some nonmetallic refractory compounds

1968 ◽  
Vol 7 (3) ◽  
pp. 189-192
Author(s):  
G. V. Samsonov ◽  
V. V. Stasovskaya ◽  
V. K. Kazakov
Keyword(s):  
Refractory Compounds ◽  
Abrasive Power

Degradation of Carcinogenic Hydroquinone in Coal Gasification Wastewater by Using Anaerobic Shaker Test

2014 ◽  
Vol 1049-1050 ◽  
pp. 39-43 ◽  
Author(s):  
Qin Hong Ji ◽  
Salma Tabassum ◽  
Chun Feng Chu ◽  
Chun Jie Li ◽  
Zhen Jia Zhang
Keyword(s):  
Industrial Wastewater ◽  
Coal Gasification ◽  
Anaerobic Sludge ◽  
Phenol Removal ◽  
Operational Parameters ◽  
Pollutant Degradation ◽  
Refractory Compounds ◽  
Coal Gasification Wastewater ◽  
Hydrolysis Acidification ◽  
Wastewater Samples

Coal gasification wastewater, as a typical industrial wastewater has poor biodegradability and high toxicity. In this paper, simple anaerobic shaker test was conducted to investigate the degradation of hydroquinone in coal gasification wastewater. Anaerobic sludge shaker test were run for 27, 50 and 73 days, the phenol concentration were adjusted to 300 mg/L and 500 mg/L with pH 7.5, respectively. The experimental results also showed that this system could effectively deal with COD and phenol removal and remain in a stable level when the operational parameters altered while the hydrolysis acidification at 45h is appropriate. Organics degradation and transformation of anaerobic coal gasification wastewater samples at 12h, 24h, 36h, 48h, and 60h were analyzed by GC/MS and it was found that hydrolysis acidification played an important role in degradation of methyl phenol, hydroquinone and refractory compounds. Therefore, the results illustrated that the simple anaerobic shaker process is an easy way for pollutant degradation and treat coal gasification wastewater effectively.

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