| dc.contributor.author | Lakshan, KA | |
| dc.contributor.author | Preethika, MAS | |
| dc.date.accessioned | 2023-06-23T03:54:46Z | |
| dc.date.available | 2023-06-23T03:54:46Z | |
| dc.date.issued | 2022-09 | |
| dc.identifier.uri | http://ir.kdu.ac.lk/handle/345/6373 | |
| dc.description.abstract | Abstract: This study was carried out to inspect
the suitability of 5 methods to produce
phosphorus-based products using sewage
sludge as an alternative to the rock phosphate
demand to produce phosphate fertilizers. The
considered methods are supercritical water
gasification of sewage sludge, struvite
precipitation, thermochemical treatment of
sewage sludge, wet chemical treatment of
sewage sludge and electrodialysis of sewage
sludge. These methods are compared with each
other to determine best method using 11
different criteria selected in Sri Lankan context.
The comparison was carried out using a multicriteria decision making (MCDM) technique
called TOPSIS under 3 different scenarios which
assigned different values to the criteria in
environmental, economical and fertilizer
suitability aspects. An analysis was carried out
regarding results of the MCDM to determine the
best method and struvite precipitation was
selected as the best method in Sri Lankan
context to recover the phosphorus in
wastewater. | en_US |
| dc.language.iso | en | en_US |
| dc.subject | phosphorus | en_US |
| dc.subject | wastewater | en_US |
| dc.subject | multiple criteria decision making | en_US |
| dc.subject | sludge processing | en_US |
| dc.title | Identifications of Pathways for Phosphorus-based Product Recovery from Sewage Sludge using Multi-Criteria Decision Analysis for Sri Lankan Context | en_US |
| dc.type | Article Full Text | en_US |
| dc.identifier.faculty | Faculty of Engineering | en_US |
| dc.identifier.journal | 15th International Research Conference, KDU | en_US |
| dc.identifier.pgnos | 9 | en_US |
