Removal of Arsenic from Drinking Water by Chemical Precipitation - A Modeling and Simulation Study of the Physical-Chemical Processes

2007 ◽  
Vol 79 (4) ◽  
pp. 357-366 ◽  
Author(s):  
Parimal Pal ◽  
Sk. Ziauddin Ahammad ◽  
Abhinandan Pattanayak ◽  
Pinaki Bhattacharya
Procedia CIRP ◽  
2020 ◽  
Vol 95 ◽  
pp. 649-661
Author(s):  
Bert Lauwers ◽  
Nataliia Chernovol ◽  
Benjamin Peeters ◽  
Dries Van Camp ◽  
Thomas Van Riel ◽  
...  

2003 ◽  
Vol 36 (6) ◽  
pp. 277-282
Author(s):  
J. Perret ◽  
G. Hétreux ◽  
J.M. Le Lann

2013 ◽  
Vol 5 (6) ◽  
pp. 655-658
Author(s):  
Egidijus Mykolaitis ◽  
Andrius Styra ◽  
Vladas Vekteris

Iron is one of the most common elements in ground water. Bythe HN 24:2003 iron concentration in water can‘t be higher than200 μg/l. Water treatment with an acoustic field is a very relevanttopic. Acoustic field is widely used in industrion, medicine,chemical industry and manufacturing. When water is affectedby ultrasound, physical-chemical processes begin. Ultrasoundvibrations lead to dispersion, degasation and coagulation. Ironparticles connect to each other when distance between them istwo times bigger then their own radius. R = 2R. And if thisprocess continues particles connect one by one. In this article teststand and methodics using ultrasonic piezoceramic are shown. Santrauka Geležis – dažniausiai požeminiuose vandenyse aptinkama priemaiša, kuri prastina geriamojo vandens savybes, todėl būtina bendrosios geležies koncentraciją sumažinti iki 0,2 mg/l. Vienas iš geležies šalinimo būdu yra paremtas ultragarso panaudojimu. Straipsnyje glaustai aptarti bendrosios geležies būviai vandenyje, jos šalinimo metodai ir pateikta eksperimentinė metodika. Eksperimentas atliktas naudojant skirtingų dažnių garso bangas nuo 8 kHz iki 20 kHz diapazone. Akustinio lauko daromai įtakai nustatyti, naudojant skirtingų dažnių garso bangas, buvo panaudoti trys skirtingi vandens debitai. Iš gautų rezultatų suformuluotos išvados.


2014 ◽  
Vol 1001 ◽  
pp. 126-130
Author(s):  
Tomáš Bakalár ◽  
Henrieta Pavolová ◽  
Milan Búgel ◽  
Ľubica Kozáková

Biomass is organic material, the second most important source of energy. Biomass is a renewable energy source. Wood biomass is used as source of energy for heating in many regions in Slovakia. It is because of its availability. Wood biomass is an easily accessible and affordable source of energy. At present, thermochemical processes, biochemical processes and physical-chemical processes are used for biomass utilization. In the article a suitable technology for combustion of wood chips is proposed. It consists of five main technological parts: transport of wood chips, silo, combustion boiler, and stack.


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