Practical use of dry magnetically controlled biosorbent in purification system of domestic sewage
DOI:
https://doi.org/10.15587/2312-8372.2016.87129Keywords:
dry magnetically controlled biosorbent, biosorption, magnetite nanoparticles, wastewater, magnetohydrodynamic mixingAbstract
The object of research is domestic sewage of sewage treatment facilities in Slavutich (Ukraine) and sorption capacity of the new dry magnetically controlled biosorbent (MCB) in relation to conventional pollutants of domestic sewage. The research found that the existing problem in wastewater treatment – exceeding MPD standards for indicators such as COD, ammonia nitrogen, nitrite, total iron, phosphates, smell – can be solved by using dry modified biosorbent obtained by magnetohydrodynamic mixing (MHDM) in crossed electric and magnetic fields. It was also selected optimal dose of dry MCB, which is 4 g/dm3 and optimal biosorption time – 20 minutes. The optimum particle size of dry MCB for effective biosorption is 0,1 mm. Efficiency of removal was determined not only for heavy metal ions by dry MCB on the basis of Sacharomyces CEREVISIAE yeast, obtained by MHDM in crossed electric and magnetic fields, but also for effective removal of such indicators of domestic sewage as: smell, COD, ammonia nitrogen, nitrite, phosphate, total iron.
As a result of researches it was found that dry MCB completely neutralizes the smell of sewage from the V points to 0 points. The effect of COD treatment is 48,1 %; ammonia nitrogen – 46,7 %; nitrite – 91,7 %; phosphates – 64,4 %; total iron – 51,7 %.
Efficiency of dry MCB is in reduction of concentration of pollutants to MPD level. The advantage of dry MCB, obtained by MHDM in crossed electric and magnetic fields, is in storage and transportation. Research is useful because dry MCB, obtained by MHDM in crossed electric and magnetic fields, can be removed in speed mode using magnetic separation.
The results of this research can be used for dose selection of dry biosorbent for wastewater sewage of sewage treatment facilities, where there is a problem with the purification of the above parameters. This will allow treatment facilities to purify sewage water to MPD standards and reduce the negative impact on the reservoir.
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Copyright (c) 2016 Олексій Вікторович Ковальов, Світлана Василівна Горобець, Оксана Юріївна Горобець, Юлія Вікторівна Шатохіна, Світлана Олексіївна Ковальова
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