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Investigating the Dewatering Efficiency of Sewage Sludge with Optimized Ratios of Electrolytic Manganese Residue Components.
Huang, Xuquan; Wang, Jun; Xue, Fei; Zhao, Xiaorong; Shi, Ziyao; Liang, Qingyang; Wang, Haojie; Zhao, Ziyu.
Afiliación
  • Huang X; Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China.
  • Wang J; College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang 443002, China.
  • Xue F; Key Laboratory of Solid Waste Disposal and Resource Utilization, China Three Gorges University, Yichang 443002, China.
  • Zhao X; Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China.
  • Shi Z; College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang 443002, China.
  • Liang Q; Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China.
  • Wang H; College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang 443002, China.
  • Zhao Z; Key Laboratory of Solid Waste Disposal and Resource Utilization, China Three Gorges University, Yichang 443002, China.
Materials (Basel) ; 17(14)2024 Jul 22.
Article en En | MEDLINE | ID: mdl-39063897
ABSTRACT
As an industrial waste residue, Electrolytic Manganese Residue (EMR) can greatly promote sludge dewatering and further particle-size optimization can significantly strengthen sludge dewaterability. In this study, the effects of ammonium sulfate, calcium sulphate dihydrate, and manganese carbonate in EMR on sludge dewatering performance were investigated using the response surface optimization method. It was found that the optimized ratio of three components in EMR was 1.01.62.2 based on capillary suction time (CST), specific resistance of filtration (SRF), and zeta potential of dewatered sludge. The composition ratio of particle-size optimized EMR was modified based on the above optimization, resulting in a significant increase in sludge dewatering performance (CST and SRF reduced by 8.7% and 11.2%, respectively). Compared with those in original sludge, the content of bound extracellular polymeric substances in the conditioned sludge with optimized ratio was drastically reduced while that of soluble extracellular polymeric substances was slightly increased, which was in accordance with the decline of fluorescence intensity. These findings indicated the disintegration of extracellular polymeric substances, the enhancement of hydrophobicity, and dewatering properties of the sludge. In summary, optimized EMR can effectively intensify the dewaterability of sludge, providing a competitive solution for dewatering and further disposal of sludge.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Materials (Basel) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Materials (Basel) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza