[Decision-making Analysis of Excess Sludge Pretreatment for Struvite Recovery Based on AHP-PROMETHEE â
¡ Method].
Huan Jing Ke Xue
; 41(8): 3725-3730, 2020 Aug 08.
Article
en Zh
| MEDLINE
| ID: mdl-33124347
ABSTRACT
Phosphorus is a non-renewable resource. The recovery of phosphorus from excess sludge by the struvite precipitation process has been applied on a full-scale. However, different sludge pretreatment methods have been used to release carbon, nitrogen, and phosphate from excess sludge, which could affect the subsequent struvite precipitation process. In this study, the decision-level analytical structure of the 3-layer and 6-index was constructed to evaluate the effects of six excess sludge treatment processes on struvite recovery. According to the preference ranking organization method for the enrichment of evaluations â
¡ (PROMETHEEâ
¡) decision-making analysis, enzymatic hydrolysis or enzymatic hydrolysis-anaerobic fermentation was the better sludge treatment choice for struvite recovery under the "product quality" priority case, while thermal hydrolysis or thermal hydrolysis-anaerobic fermentation could be better under the "time and economy" priority case. This study provides a recommendation for the selection and design of excess sludge treatment for struvite recovery.
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Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Fósforo
/
Aguas del Alcantarillado
Tipo de estudio:
Guideline
Idioma:
Zh
Revista:
Huan Jing Ke Xue
Año:
2020
Tipo del documento:
Article
País de afiliación:
China