Hidayah, Euis Nurul and Cahyonugroho, Okik Hendriyanto and Sulistyo, Elita Nuritriyani and Karnaningroem, Nieke (2022) Using molecular weight–based luorescent detector to characterize dissolved eluent organic matter in oxidation ditch with algae. Environmental Science and Pollution Research.
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Abstract
Implementation of microalgae has been considered for enhancing eluent wastewater quality. However, it can cause environmental issues due to the release of extracellular and algal organic matter in the biological process. This study aimed to investigate the characteristics of dissolved eluent as algae- and bacteria-derived organic matter during the oxidation ditch process. Furthermore, experiments were conducted under three combinations illed by Spirulina platensis, Chlorella vulgaris, and without microalgae. The results showed that dissolved eluent organic matter was more aromatic and hydrophobic than before treatment. Fluorescence spectroscopy identiied two components—aromatic protein–like and soluble microbial product–like components—at excitation/emission of 230/345 nm and 320/345 nm after treatment, instead of fulvic acid–like at 230/420 nm and humic acid–like at 320/420 nm in raw wastewater. These components were fractionated based on the average of molecular weight cut-ofs (MWCOs), and high (MWCOs > 50,000 Da), medium (MWCOs 50,000–1650 Da), and low molecular weights (MWCOs < 1650 Da) were reported. Biological oxidation ditch under symbiosis algal bacteria generated humic and fulvic acid with a higher MWCOs than the process without algal. The quality and quantity of dissolved eluent organic matter in an oxidation ditch reactor were signiicantly afected by algal-bacteria symbiotic. Keywords Algal organic matter · Fractionation · Soluble microbial products · Fulvic acid–like · Characterization · Biological process
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Faculty of Engineering > Departement of Environmental Engineering |
| Depositing User: | Fatchullah Fatchullah |
| Date Deposited: | 14 Oct 2022 07:45 |
| Last Modified: | 14 Oct 2022 07:45 |
| URI: | http://repository.upnjatim.ac.id/id/eprint/9930 |
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