Concept

Fecal coliform

Publications associées (34)

Photoinactivation of virus on iron-oxide coated sand: enhancing inactivation in sunlit waters

Adsorption onto iron oxides can enhance the removal of waterborne viruses in constructed wetlands and soils. If reversible adsorption is not coupled with inactivation, however, infective viruses may be released when changes in solution conditions cause des ...

Elsevier2012

Solar disinfection of wild Salmonella sp. in natural water with a 18 L CPC photoreactor: Detrimental effect of non-sterile storage of treated water

César Pulgarin, Julian Andrés Rengifo Herrera, Frédéric Sciacca

For the first time solar disinfection of liters of water containing wild Salmonella sp. and total coliforms was carried out in a compound parabolic collector (CPC) photoreactor at temperatures of almost 50 degrees C. Using surface water with high turbidity ...

2011

Reuse of domestic wastewater treated in macrophyte ponds to irrigate tomato and eggplant in semi-arid West-Africa: benefits and risks

André Mermoud

The scarcity of freshwater resources is a critical problem in semi-arid zones and marginal quality water is increasingly being used in agriculture. This paper aimed at evaluating the physico-chemical and biological risks on irrigated soils and fruits of ma ...

Elsevier2011

TiO2 PHOTOCATALYTIC INACTIVATION UNDER SIMULATED SOLAR LIGHT OF BACTERIAL CONSORTIA IN DOMESTIC WASTEWATERS PREVIOUSLY TREATED BY UASB, DUCKWEED AND FACULTATIVE PONDS

César Pulgarin, Julian Andrés Rengifo Herrera

In this work, TiO2 photocatalysis was used to disinfect domestic wastewaters previously treated by different biological treatment systems: Upward-flow Anaerobic Sludge Blanket (UASB), facultative pond, and duckweed pond. The microorganisms monitored were E ...

Sociedade Brasileira de Quimica / Sociedade Brasileira de Química2010

Dramatic enhancement of solar disinfection (SODIS) of wild Salmonella sp in PET bottles by H2O2 addition on natural water of Burkina Faso containing dissolved iron

César Pulgarin, Julian Andrés Rengifo Herrera, Frédéric Sciacca

Disinfection of surface water containing dissolved iron (0.3 mg L-1) at natural neutral pH (similar to 7.5) was carried out via solar disinfection (SODIS) treatment in PET bottles with H2O2 (10 mg L-1). Wild coliforms and Salmonella sp. were monitored for ...

2010

Méthodologie d'évaluation des facteurs de succès et d'échec des stations de traitement des eaux usées et des boues de vidange à grande échelle - A methodology to evaluate succes or failure of full-scale wasterwater and faecal sludge treatment systems

Magalie Diane Bassan

Most of development programs in sanitation encourage the building of infrastructure such as treatment plants that are unfortunately rapidly abandoned for reasons that are not well understood. A methodology to assess these factors for wastewater and faecal ...

2009

Recyclage des eaux usées en irrigation

Yeli Mariam Sou

The present study takes place in Ouagadougou (Burkina Faso), a typical Sub-Saharan city where water shortage and food crisis necessitate wastewater reuse in urban agriculture. Different issues linked to this practice were studied in two components separate ...

EPFL2009

A Comparison of Solar Photocatalytic Inactivation of Waterborne E. Coli Using Tris(2,2’-bipyridine)ruthenium(II), Rose Bengal and TiO2

César Pulgarin, Julian Andrés Rengifo Herrera

Background. The development of alternative processes to eliminate pathogenic agents in water is a matter of growing interest. Current drinking water disinfection procedures, such as chlorination and ozonation, can generate disinfection by-products with car ...

2007

Indoor air purification and ventilation systems sanitation with essential oils

Claude-Alain Roulet

Ventilation systems often host bacteria and fungi that may be dangerous for the health of exposed people. Essential oils are one means among others to prevent microbial development. Used as a basis for many traditional therapies, these odorant plant extrac ...

2006

Vers un assainissement urbain durable en Afrique subsaharienne

Halidou Koanda

Justification In Sub-Saharan Africa, excreta and wastewater disposal is characterised primarily by on-site sanitation systems. This sanitation option is more likely to increase as governments, municipalities, communities, private operators and donor agenci ...

EPFL2006

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