본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Renewable energy v.105, 2017년, pp.257 - 269   SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Solar water pasteurizer: Productivity and treatment efficiency in microbial decontamination

Carielo, Gustavo (Federal University of Pernambuco, Center of Technology and Geosciences Center, Department of Nuclear Energy, Av. Prof. Luiz Freire, 1000, Cidade Universitária, CEP 50.740-540, Recife, Pernambuco, Brazil ) ; Calazans, Glícia (Federal University of Pernambuco, Department of Antibiotics, Av. Prof. Moraes Rego, 1000, Cidade Universitária, CEP 50.670-901, Recife, Pernambuco, Brazil ) ; Lima, Glaucia (Federal University of Pernambuco, Department of Antibiotics, Av. Prof. Moraes Rego, 1000, Cidade Universitária, CEP 50.670-901, Recife, Pernambuco, Brazil ) ; Tiba, Chigueru (Federal University of Pernambuco, Center of Technology and Geosciences Center, Department of Nuclear Energy, Av. Prof. Luiz Freire, 1000, Cidade Universitária, CEP 50.740-540, Recife, Pernambuco, Brazil ) ;
  • 초록  

    Abstract The ingestion of contaminated water is a major cause of disease and death in developing countries. The decontamination of water can be achieved by different methods of treatment. However, solar pasteurization shows promise for inactivating microorganisms at different temperatures. In this work, a solar pasteurization system operating by automated batches has been both designed and tested. A flat solar collector with 2 m 2 of aperture, a heat exchanger, two solenoid valves, two thermoresistances and an electronic control were used to perform water treatment in different preprogrammed “set points”: 3600 s at 55 °C; 2700 s at 60 °C; 1800 s at 65 °C; 900 s at 75 °C and 15 s at 85 °C. The system showed advantages over other existing pasteurizers in literature when it comes to the possibility of performing treatment in several temperatures, the complete segregation between water masses and the ability of controlling water residence time in the solar collector. The use of heat exchanger has great importance since it implies increased productivity of about 110% and significant reduction of solar radiation cutting level at about 6.6 MJ/m 2 day. The experimental data also showed that it was possible to achieve productivity of 80 L of treated water in a day of clear sky. Furthermore, the pasteurizer remained stable for elimination efficiency of the tested microorganisms, considering the 85 °C treatment temperature for 15 s. Bacteriological analysis after treatment showed absence of total coliforms and Escherichia coli , MPN Pseudomonas aeruginosa and 98.7% average reduction of heterotrophic bacteria at different levels of water sample contamination. Highlights The treatment showed absence of total coliforms and E. coli , MPN P. aeruginosa and 98.7% reduction for heterotrophic. The heat recovery has great importance since it increased productivity by 110%. The solar radiation cutting level for the pasteurizer is at about 6.6 MJ/m 2 day. The solar pasteurizer (2 m 2 collector) produce 80 L/day, with 85 °C treatment temperature for 15 s. The system guarantees total segregation between the contaminated water and the water in treatment.


  • 주제어

    Solar pasteurization .   Safe water .   Microbiological decontamination .   Thermal inactivation .   Pathogens.  

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • 원문이 없습니다.

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기