World J Gastrointest Oncol
September 2024
The research was conducted to evaluate the sludge quality as fertilizer after heavy metal removal by using free nitrous acid (FNA, HNO) solution. To meet up the Korean criteria of fertilizer, FNA treatment with the ultrasonic process was studied here. The sample was taken from a local wastewater and sewage treatment plants and FNA with FNA plus ultrasonic used to treat them.
View Article and Find Full Text PDFEnviron Monit Assess
December 2015
The sedimentary environment has been modified in the Geum River where an estuary dam and midstream dams were constructed. Furthermore, the Geum River tributaries deliver contaminants from the wastewater of an industrial complex. However, the influence of tributaries and dams on sedimentary metal deposition has not been extensively studied.
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