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Anaerobic digestion of mercury phytoextraction crops with intermediary stage bio-waste polymer treatment
In laboratory experiments, Lepidium sativum L. and Mentha spicata L. were grown in compost spiked with mercury. After cultivation for 20 and 68 days, respectively, translocation factors of 0.05 ≤ TF ≤ 0.2 (Lepidium sativum) and accumulation factors of 2.2 ≤ AF ≤ 12 (Mentha spicata) were recorded. Pl...
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| Format: | Default Article |
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2020
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| Online Access: | https://hdl.handle.net/2134/12777362.v1 |
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| _version_ | 1823267020371656704 |
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| author | Andrew Rollinson Jayshree Bhuptani J Beyer Y Ismawati Tanja Radu |
| author_facet | Andrew Rollinson Jayshree Bhuptani J Beyer Y Ismawati Tanja Radu |
| author_sort | Andrew Rollinson (4742604) |
| collection | Figshare |
| description | In laboratory experiments, Lepidium sativum L. and Mentha spicata L. were grown in compost spiked with mercury. After cultivation for 20 and 68 days, respectively, translocation factors of 0.05 ≤ TF ≤ 0.2 (Lepidium sativum) and accumulation factors of 2.2 ≤ AF ≤ 12 (Mentha spicata) were recorded. Plants were then harvested and used as feedstock for bench-scale anaerobic digesters. The reactors operated in continuously-stirred batch mode for a period of ten days. Inhibition of anaerobic biogas production was apparent with one sample set evidencing mercury-induced bacteriostatic toxicity. Otherwise, ex-situ characterization of digestate showed that the reactors were within stable operating range. A canola oil-sulphide polymer derived from bio-waste was also used as an intermediary treatment stage to test its capacity for extracting mercury from half the samples prior to anaerobic digestion, and also from the post-experimentation reactor digestate. The polymer removed mercury from digestate with a 40–50% efficacy across all samples, suggesting its potential as a sludge clean-up option. Anaerobic digestion combined with staged polymer extraction offers a potential route for the disposal of phytoremediation crops and ultimately the recovery of mercury, coincident with the production of a bioenergy vector. |
| format | Default Article |
| id | rr-article-12777362 |
| institution | Loughborough University |
| publishDate | 2020 |
| record_format | Figshare |
| spelling | rr-article-127773622020-06-30T00:00:00Z Anaerobic digestion of mercury phytoextraction crops with intermediary stage bio-waste polymer treatment Andrew Rollinson (4742604) Jayshree Bhuptani (1249119) J Beyer (9220238) Y Ismawati (9220241) Tanja Radu (1257525) Science & Technology Life Sciences & Biomedicine Environmental Sciences Environmental Sciences & Ecology Biogas canola oil polysulfide polymer phytoremediation HEAVY-METALS CONTAMINATED SOIL PHYTOREMEDIATION PLANTS DISPOSAL SULFUR PHYTOTOXICITY ACCUMULATION REMEDIATION INHIBITION Chemical Sciences Biological Sciences In laboratory experiments, Lepidium sativum L. and Mentha spicata L. were grown in compost spiked with mercury. After cultivation for 20 and 68 days, respectively, translocation factors of 0.05 ≤ TF ≤ 0.2 (Lepidium sativum) and accumulation factors of 2.2 ≤ AF ≤ 12 (Mentha spicata) were recorded. Plants were then harvested and used as feedstock for bench-scale anaerobic digesters. The reactors operated in continuously-stirred batch mode for a period of ten days. Inhibition of anaerobic biogas production was apparent with one sample set evidencing mercury-induced bacteriostatic toxicity. Otherwise, ex-situ characterization of digestate showed that the reactors were within stable operating range. A canola oil-sulphide polymer derived from bio-waste was also used as an intermediary treatment stage to test its capacity for extracting mercury from half the samples prior to anaerobic digestion, and also from the post-experimentation reactor digestate. The polymer removed mercury from digestate with a 40–50% efficacy across all samples, suggesting its potential as a sludge clean-up option. Anaerobic digestion combined with staged polymer extraction offers a potential route for the disposal of phytoremediation crops and ultimately the recovery of mercury, coincident with the production of a bioenergy vector. 2020-06-30T00:00:00Z Text Journal contribution 2134/12777362.v1 https://figshare.com/articles/journal_contribution/Anaerobic_digestion_of_mercury_phytoextraction_crops_with_intermediary_stage_bio-waste_polymer_treatment/12777362 CC BY 4.0 |
| spellingShingle | Science & Technology Life Sciences & Biomedicine Environmental Sciences Environmental Sciences & Ecology Biogas canola oil polysulfide polymer phytoremediation HEAVY-METALS CONTAMINATED SOIL PHYTOREMEDIATION PLANTS DISPOSAL SULFUR PHYTOTOXICITY ACCUMULATION REMEDIATION INHIBITION Chemical Sciences Biological Sciences Andrew Rollinson Jayshree Bhuptani J Beyer Y Ismawati Tanja Radu Anaerobic digestion of mercury phytoextraction crops with intermediary stage bio-waste polymer treatment |
| title | Anaerobic digestion of mercury phytoextraction crops with intermediary stage bio-waste polymer treatment |
| title_full | Anaerobic digestion of mercury phytoextraction crops with intermediary stage bio-waste polymer treatment |
| title_fullStr | Anaerobic digestion of mercury phytoextraction crops with intermediary stage bio-waste polymer treatment |
| title_full_unstemmed | Anaerobic digestion of mercury phytoextraction crops with intermediary stage bio-waste polymer treatment |
| title_short | Anaerobic digestion of mercury phytoextraction crops with intermediary stage bio-waste polymer treatment |
| title_sort | anaerobic digestion of mercury phytoextraction crops with intermediary stage bio-waste polymer treatment |
| topic | Science & Technology Life Sciences & Biomedicine Environmental Sciences Environmental Sciences & Ecology Biogas canola oil polysulfide polymer phytoremediation HEAVY-METALS CONTAMINATED SOIL PHYTOREMEDIATION PLANTS DISPOSAL SULFUR PHYTOTOXICITY ACCUMULATION REMEDIATION INHIBITION Chemical Sciences Biological Sciences |
| url | https://hdl.handle.net/2134/12777362.v1 |