Development of a Coupled Solar-Biological System for the Disinfection and Elimination of Organic Contaminants in Drinking and WasteWaters in Rural Areas of Colombia (BIOSOLAR-DETOX)

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Development of a Coupled Solar-Biological System
for the Disinfection and Elimination of Organic
Contaminants in Drinking and WasteWaters in Rural
Areas of Colombia(BIOSOLAR-DETOX)
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Responsibles

• Dr. Cesar Pulgarin
• Dr. Janeth Sanabria
• Dr. Norberto Benitez
• Dr. Miguel Peña

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Project Location in Colombia
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Scientific targets

• Drinking Water Treatment by Coupling of
  Filtration and Helio Photocatalytic Processes
• Domestic Wastewater Reusing in Agricultural
  Activities after Combined Biological
  Helio-Photocatalytic Treatment
• Agroindustrial wastewater treatment by a coupled
  Helio-photocatalytical-biological system

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Schematic Representation of the Water Uses in the
Colombian Water Cycle
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Natural Receptors highly Contaminated
Non Treated Domestic Waste-Waters
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Water disinfection

• Chlorination is a widely used technique for
  the disinfection of water. Its bacterial
  inactivation effect has been proven but a great
  concern is that chemical risks could be enhanced
  due to by-products formed during the chlorination
  process.

Therefore, the necessity to find low cost,
environmental friendly and sustainable
alternative, or complement, to chlorination.
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Disinfectants and disinfection-by products
(DBPs)apparition of chemical risk to human
THMs CHCl3, CHCl2Br, CHClBr2, CHBr3 haloacetates,
haloacetonitriles, haloacetaldehydes,
haloketones, halofuranones, chloropicrin,
chlorate aldehydes, carboxylic acids

• Chlorine
• chlorine dioxide
• chloramine
• Ozone
• hydrogen peroxide

Halogenated compounds, chlorite,
chlorate Cyanogen, chloride and others generally
thought to be the same DBPs as chlorine, but
lower concentration Bromate, hydrogen
peroxide bromomethanes, bromoacetates,
bromoaldehydes, bromoketones, iodinated Analogs,
aldehydes, carboxylic acids Carboxylic acids
UV
Not DBPs
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TiO2- semiconductor photocatalytic process
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1. Drinking Water Treatment by Coupling of
Filtration and Helio Photocatalytic Processes
Puerto Mallarino DRINKING WATER Plant
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Expected ResultsDrinking Water Treatment by
Coupling of Filtration and Helio Photocatalytic
Processes
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2. Domestic Wastewater Reusing in Agricultural
Activities after Combined Biological
Photocatalytic Treatment
GINEBRA Transference and Treatment Station
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Expected Results
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3. Agroindustrial wastewater treatment by a
coupled Helio-photocatalytical-biological system
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PESTICIDES AND POLLUTION

• Aerial and manual pesticides
  application
• Cleaning recipients

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Parameter Value
COD (mg O2/l) 108.7
pH (Unit) 6.81
Temperature ( C) 26.0
Turbidity (UNT) 1.4
Flow (l/s) 1.85
Inicial wastewater characterization
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Expected Results Agroindustrial wastewater
treatment by a coupled Helio-photocatalytical-biol
ogical system
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Project Partners
EIER
Ecole Inter Etats dIngenieurs de lEquipement
Rural
Dr. Amadou Hama Maiga Dr. Joseph Wethe
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Different Work-Packages
WP Name Beginning (month) Ending (month)
1 Scientific Studies Drinking Waters 0 24
2 Scientific Studies Waste-Waters 0 24
3 Design, optimization and coupling of reactors 19 36
4 Technological evaluation in real scale 37 42
5 Technology diffusion 0 48
6 Project management 0 48
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Research Team in UNIVALLE Colombia
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Students Group
M.Sc. Students Sandra Rivera Doctoral
StudentsDiana Serrano
Doctoral Students Julian Rengifo
M.Sc. StudentsDorance BecerraLuis Ferney
Gonzalez Doctoral StudentsAlejandro
MoncayoClaudia Mendoza
M.Sc. StudentsAndres López Doctoral
StudentsJosé Colina
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Student Team in Univalle Colombia
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Research Team in EPFL
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Realized tasks

• Selection of Student group
• Selection of the study place
• Acquisition of material and equipment
• Space arrangements and laboratories conditioning
• Bibliographic review
• Chemical and microbiological initial
  characterization of samples
• Definition of first step in collaboration between
  UV-CINARA-EIER
• Agreement for the supply of demonstrative solar
  prototype by a Spanish photoreactor maker.

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Photocatalysis as post-treatment of biologically
treated wastewaters in the framework of water
reuse in agriculture
Schéma Représentatif de la Estación de
Investigación y Transferencia de Tecnología en el
Tratamiento de Aguas Residuales y Re - uso de
Ginebra- Valle.
Le système de traitement biologique comporte 4
bassins réacteur UASB (1), lagune anaérobie (2),
lagune contenant des plantes aquatiques (3),
lagune facultative (4).
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Available Reactors
Suntest

• CPC

UV lamp
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Initial Chemical characterization of Wastewater
of Ginebra Station
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Initial Microbiological characterization of
Wastewater of Ginebra Station
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Pesticides used