Evaluación de la mineralización de biosólidos de plantas de tratamiento de aguas residuales domésticas

Content Provider	Semantic Scholar
Author	Silva, Jorge Torres, L. Patricia Mosquera, R. Jaime
Copyright Year	2013
Abstract	The biosolids from wastewater Treatment plants have high potential of agricultural application due to the contents of organic matter and nutrients. The mineralization of biosolids from the Canaveralejo Wastewater Treatment Plant, Cali-Colombia, was evaluated by fitting regression models. The content of NH4+, NO3- and NO2- were monitored during 126 days for three types of biosolids: dehydrated, thermally dried and alkalinized, which were applied to a Vertic Endoaquepts soil using doses of 35.4, 36.4 and 54.5 t ha-1 respectively. To adjust the regression curves, the models used were: simple exponential, double exponential, hyperbolic, parabolic and some regular statistical models. The results showed that the parabolic model proposed by Broadbent presented the best fit to describe the process of mineralization in the evaluated soil. The exponential model of Stanford & Smith was the second option of modeling, permitting corroborate the increase of organic nitrogen (N0) when the biosolids are applied and the mineralization increase in relation to the control treatment.
Starting Page	434
Ending Page	442
Page Count	9
File Format	PDF HTM / HTML
Volume Number	17
Alternate Webpage(s)	http://www.scielo.br/pdf/rbeaa/v17n4/a12v17n4.pdf
Alternate Webpage(s)	https://doi.org/10.1590/S1415-43662013000400012
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article