2018
DOI: 10.3390/w10070882
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Removal of Total Dissolved Solids from Reverse Osmosis Concentrates from a Municipal Wastewater Reclamation Plant by Aerobic Granular Sludge

Abstract: Reverse osmosis (RO) has been widely utilized in water reclamation plants and produces a concentrated brine (or reject) stream as a by-product. RO concentrates (ROC) contain vast quantities of salts and dissolved organic matter, such as biomass and humic-like substances, which hinder biological wastewater treatment (such as biological nitrogen removal). In this study, we cultivated granular sludge in an aerobic sequencing batch reactor to treat municipal wastewater with an organic loading rate of 2.1-4.3 kgCOD… Show more

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Cited by 7 publications
(3 citation statements)
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“…This is in accordance with the study conducted by Do-Hyung Kim et.al. 14 where there was reduction in the concentration of total dissolved salts by reverse osmosis technique which was significant.…”
Section: Discussionmentioning
confidence: 99%
“…This is in accordance with the study conducted by Do-Hyung Kim et.al. 14 where there was reduction in the concentration of total dissolved salts by reverse osmosis technique which was significant.…”
Section: Discussionmentioning
confidence: 99%
“…RO membranes push water molecules from saline water to the less saline area by applying a hydraulic pressure greater than the osmotic pressure across a semipermeable membrane [21]. This semipermeable membrane inhibits the majority of dissolved impurities from passing through to the pure water side (Figure 3).…”
Section: Methodsmentioning
confidence: 99%
“…Thus, considering a benchmark for the present study was a major challenge. A study conducted byKim et al (2018) tried to remediate the RO concentrate with the help of aerobic sludge as the baseline. The optimized OLR of the present study was on par with the range (2.1-4.3 kg COD/m 3 .d) prescribed by the above author with marginally lower to a similar level of recovery (i.e.…”
mentioning
confidence: 99%