scholarly journals Experimental Study on the Removal of Arsenic in Waste Water from Semiconductor Manufacturing

2009 ◽  
Vol 01 (01) ◽  
pp. 48-51 ◽  
Author(s):  
Yue LI ◽  
Min XI ◽  
Fanlong KONG ◽  
Chunyan YU
2017 ◽  
Vol 17 (43) ◽  
pp. 18-22 ◽  
Author(s):  
Otgon N ◽  
G Zhang ◽  
C Yang

The oxidation of As(III) to As(V) followed by precipitation and adsorption is thought to be the most effective process for removal of arsenic in industrial wastewater. In this work, the oxidation of As(III) to As(V) with ozone was carried out in an acidic solution. After oxidation, arsenic was removed by precipitation in an iron (III) sulfate system under ambient pressure at 90°C in acid. Batch experimental results show that ozone is quite effective in oxidizing As(III) at low pH. And more than 90% of 5g/l As(III) was removed from the acidic solution by precipitation with Fe2(SO4)3 in 7-8 hours.


Author(s):  
Gunasekar S ◽  
Santhosh L ◽  
Ragupathi P

The aim of this paper is to examine the production of artificial aggregate and its potential applications in concrete. The waste materials from industrial are one of the concern issues in sustainable development. Recycle and reuse these waste materials is one of the strategies to produce the better sustainable system. One of the methods is by using the waste materials to produce artificial aggregate by palatalization. There are wide applications of artificial aggregate, for instance construction, agriculture, geotechnical fill, waste water, drainage and many more. Physical properties such as bulk density, specific gravity, unit weight, porosity and water absorption are important criteria. The performance of the artificial aggregate varies, depending on the application.


Author(s):  
Linda C. White ◽  
Eric Paling ◽  
Pritam Singh ◽  
Wensheng Zhang

2010 ◽  
Vol 14 (2) ◽  
pp. 92-97 ◽  
Author(s):  
Asha Lata Singh ◽  
P. N. Sarma

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