Studies on semi-cylindrical solar tunnel dryer for drying wastewater sludge
Tập 132 Số 1D (2023), Nghiên cứu
Tập 132 Số 1D (2023)

Studies on semi-cylindrical solar tunnel dryer for drying wastewater sludge

Nghiên cứu
https://doi.org/10.26459/hueunijns.v132i1D.6989
Đã xuất bản 2023-12-30
Nguyen Xuan Loc
Department of Environmental Science, College of the Environment and Natural Resources, Can Tho University, Can Tho, Vietnam
Phuong Do Thi My
Department of Environmental Engineering, College of the Environment and Natural Resources, Can Tho University, Can Tho, Vietnam

Tóm tắt

Drying plays an important process for wastewater sludge management, as it can minimise the volume of wastewater sludge before disposal, and consequently the cost of storage, handling and transport. In this study, the wastewater sludge was dried by using a solar tunnel greenhouse drying system. The performance of the dryer for drying wastewater sludge has been analyzed through no load and full load test. The three full load drying tests recorded that the temperature inside the tunnel dryer fluctuated around 55±5°C; while the no load drying test, the temperature of the drying tunnel maintained within 60±5°C; as compared to the ambient temperature of 30±5°C. The average moisture content of solar dried sludge decreased from 88.69 - 90.84% to 7.78 – 13.30% in the mixing conditions and 14.78 – 19.52% in the non-mixing conditions, in 5 days. The study suggests that the semi-cylindrical solar tunnel dryer of wastewater sludge has given satisfactory results within five days.

https://doi.org/10.26459/hueunijns.v132i1D.6989
PDF (English)

Tài liệu tham khảo

  1. Boretti A, Rosa L. Reassessing the projections of the world water development report. NPJ Clean Water. 2019;2(1):1-6.
  2. Metcalf L, Eddy HP, Tchobanoglous G. Wastewater engineering: treatment, disposal, and reuse (Vol. 4). New York: McGraw-Hill; 1991.
  3. An-nori A, Ezzariai A, El Mejahed K, El Fels L, El Gharous M, Hafidi M. Solar drying as an eco-friendly technology for wastewater sludge stabilization: assessment of micropollutant behavior, pathogen removal, and agronomic value. Frontiers in Environmental Science. 2022;238.
  4. LeBlanc RJ, Matthews P, Richard RP (Eds.). Global atlas of excreta, wastewater sludge, and biosolids management: moving forward the sustainable and welcome uses of a global resource. Un-habitat; 2008.
  5. Bennamoun L, Arlabosse P, Léonard A. review on fundamental aspect of application of drying process to wastewater sludge. Renewable and Sustainable Energy Reviews. 2013;28:29-43.
  6. Mathioudakis VL, Kapagiannidis AG, Athanasoulia E, Paltzoglou AD, Melidis P, Aivasidis A. Wastewater sludge solar drying: experiences from the first pilot-scale application in Greece. Drying Technology. 2013;31(5):519e526.
  7. Collard M, Teychené B, Lemée L. Comparison of three different wastewater sludge and their respective drying processes: solar, thermal and reed beds - impact on organic matter characteristics. Journal of Environment Management. 2017;203:760-767.
  8. Duong ND. State management of solar energy: a case study in Vietnam. Journal of Positive School Psychology. 2022;2072-2085.
  9. Matavel C, Hoffmann H, Rybak C, Sieber S, Müller K, Brüntrup M, et al. Passive solar dryers as sustainable alternatives for drying agricultural produce in sub-Saharan Africa: advances and challenges. Discover Sustainability. 2021;2(1):1-15.
  10. Udomkun P, Romuli S, Schock S, Mahayothee B, Sartas M, Wossen T, et al. Review of solar dryers for agricultural products in Asia and Africa: An innovation landscape approach. Journal of Environmental management. 2020;268:110730.
  11. Bennamoun L. Solar drying of wastewater sludge: A review. Renewable and Sustainable Energy Reviews. 2012;16(1):1061-1073.
  12. Mathioudakis VL, Kapagiannidis AG, Athanasoulia E, Diamantis VI. Extended dewatering of sewage sludge in solar drying plants. Desalination. 2009;248:733-9.
Creative Commons License

công trình này được cấp phép theo Creative Commons Ghi công-Chia sẻ tương tự 4.0 License International .

Bản quyền (c) 2023 Array