Efficiency and mechanism of sorption of low concentration uranium in water by powdery aerobic activated sludge

2019 ◽  
Vol 180 ◽  
pp. 483-490 ◽  
Author(s):  
Xiao Li Wang ◽  
Ye Li ◽  
Jing Huang ◽  
Yu Zhi Zhou ◽  
Dong Bin Liu ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Low Concentration ◽  
Mechanism Of Sorption

Accumulation of Zinc in Activated Sludge

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2133-2136 ◽  
Author(s):  
K. Moriyama ◽  
Y. Kobayashi ◽  
T. Mori ◽  
H. Nakahara ◽  
M. Chino
Keyword(s):  
Sewage Sludge ◽  
Activated Sludge ◽  
Zinc Concentration ◽  
Laboratory Simulation ◽  
Activated Sludge Process ◽  
Low Concentration ◽  
Composted Sewage Sludge

The highest zinc concentration in activated sludge occurred at 15 days SRT in a laboratory simulation of the batch activated sludge process. It is possible to maintain a low concentration of zinc in composted sewage sludge, which is derived from excess activated sludge, by keeping the SRT short.

Investigation of the Treatment of Wastewater Using Activated Sludge Process

2012 ◽  
Vol 260-261 ◽  
pp. 969-976
Author(s):  
Ayo Samuel Afolabi ◽  
Oluwagbenga Johnson ◽  
Ambali Saka Abdulkareem ◽  
Bada Samson Oluwaseyi
Keyword(s):  
Activated Sludge ◽  
Removal Efficiency ◽  
Maximum Concentration ◽  
Suspended Solids ◽  
Activated Sludge Process ◽  
Nutrients Removal ◽  
Low Concentration ◽  
Effective Application ◽  
Process Operation ◽  
Solids Removal

The treatment of wastewater with activated sludge process has been received with a great attention for decades. However, the effective application of this field is not as widely spread. In this study, the treatment of wastewater was investigated, and samples were collected and ascertained. The process operation was monitored and major observation and findings were noted. Consistent pH of 7.4 was almost maintained. High nutrients removal efficiency was sustained with low concentration of nitrates and phosphates in effluent wastewater. Suspended solids removal was satisfactory, although undesired spike of 19 mg/l and three undesired values beyond >15mg/l were measured. The micronutrient metals such as Al and Zn were found to be high with highest concentration of 113600 mg/kg and 940 mg/kg. The maximum concentration of 300 mg/kg and 332 mg/kg of Mn and Cr respectively were recorded.

Acclimating activated sludge with co-metabolic substrates for enhancing treatment of low-concentration polyether wastewater

2020 ◽  
Vol 159 ◽  
pp. 107583 ◽  
Author(s):  
Wenhao Liu ◽  
Zhiyong Zheng ◽  
Fuxin Sun ◽  
He Liu ◽  
Min-Hua Cui ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Low Concentration ◽  
Metabolic Substrates
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