EVALUATION OF THE POSSIBILITY OF APPLYING SEWAGE SLUDGE AS  A LIGHT ABSORPTION MATERIAL IN SOLAR-TO-STEAM DEVICES

Đặng Thị Hải Linh; Nguyễn Đức Bình; Đinh Thị Kim Phượng; Phạm Thu Huyền; Nguyễn Ngọc Duy; Nguyễn Thị Hạnh; Trần Nam Anh; Phạm Hồng Ánh; Nguyễn Minh Hoàng; Đào Văn Dương

doi:10.34238/tnu-jst.8802

EVALUATION OF THE POSSIBILITY OF APPLYING SEWAGE SLUDGE AS A LIGHT ABSORPTION MATERIAL IN SOLAR-TO-STEAM DEVICES

About this article

Received: 22/09/23 Revised: 03/11/23 Published: 03/11/23

Authors

1. Dang Thi Hai Linh, VNU - University of Science
2. Nguyen Duc Binh, VNU - University of Science
3. Dinh Thi Kim Phuong, VNU - University of Science
4. Pham Thu Huyen, VNU - University of Science
5. Nguyen Ngoc Duy, VNU - University of Science
6. Nguyen Thi Hanh, VNU - University of Science
7. Tran Nam Anh, 1) VNU - University of Science, 2) Phenikaa University
8. Pham Hong anh, Nguyen Sieu School, Hanoi
9. Nguyen Minh Hoang, VNU - University of Science
10. Dao Van Duong , Phenikaa University

Abstract

Solar-to-steam technology is a promising sustainable technology to mitigate the global energy crisis and clean water scarcity. Advanced materials contribute significantly to improving the evaporation efficiency of solar-to-steam generators. In this study, we evaluate the possibility of using domestic wastewater sludge as a light-absorbing membrane for solar-to-steam devices. The characteristic properties of carbon material, light absorbing membranes generated from wastewater sludge were evaluated by scanning electron microscope, Fourier-transform infrared spectroscopy, Energy-dispersive X-ray spectroscopy, The Brunauer–Emmett–Teller (BET) method. The optimal evaporation rate was 1.88 kg.m^-2.h^-1 under 0.6 kW/m² irradiation. The obtained results which indicate the industrial sludge can be applied as efficient solar absorbed materials in solar-driven water evaporation systems.

Keywords

Solar-to-steam technology; Clean water scarcity; Industrial sludge; Solar absorbed material; Solar energy

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DOI: https://doi.org/10.34238/tnu-jst.8802

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