Your browser doesn't support javascript.
loading
Solar-driven free chlorine advanced oxidation process for simultaneous removal of microcontaminants and microorganisms in natural water at pilot-scale.
Sánchez-Montes, Isaac; Salmerón, Irene; Aquino, José M; Polo-López, María Inmaculada; Malato, Sixto; Oller, Isabel.
Afiliação
  • Sánchez-Montes I; São Carlos Institute of Chemistry, University of São Paulo, São Carlos, SP, 13560-970, Brazil.
  • Salmerón I; Plataforma Solar de Almería-CIEMAT, Ctra. Senés km 4, Tabernas, Almería, 04200, Spain.
  • Aquino JM; Department of Chemistry, Federal University of São Carlos, São Carlos, SP, 13565-905, Brazil.
  • Polo-López MI; Plataforma Solar de Almería-CIEMAT, Ctra. Senés km 4, Tabernas, Almería, 04200, Spain.
  • Malato S; Plataforma Solar de Almería-CIEMAT, Ctra. Senés km 4, Tabernas, Almería, 04200, Spain.
  • Oller I; Plataforma Solar de Almería-CIEMAT, Ctra. Senés km 4, Tabernas, Almería, 04200, Spain. Electronic address: isabel.oller@psa.es.
Chemosphere ; 288(Pt 2): 132493, 2022 Feb.
Article em En | MEDLINE | ID: mdl-34637860
Contamination of natural water (NW) by emerging contaminants has been widely pointed out as one of the main challenges to ensure high-quality drinking water. Thus, the effectiveness of a solar-driven free chlorine advanced oxidation process simultaneously investigating the elimination of six organic microcontaminants (OMCs) and three bacteria from NW at a pilot-scale was evaluated in this study. Firstly, the solar/free chlorine process was studied at lab-scale using a solar simulator to evaluate the effect of free chlorine concentration (0.5-10 mg L-1) on OMC degradation and generation of toxic oxyanions (e.g., ClO3- ions). Thus, the best free chlorine concentration observed was applied for the simultaneous removal of OMCs and pathogens under natural solar light at pilot scale. At lab-scale, the solar/free chlorine (2.5 mg L-1) process achieved 80% of total degradation in 5 min (1.4 kJ L-1 of accumulative UV energy) with an oxidant consumption of 0.3 mg L-1 and without ClO3- generation. Similar results were attained under natural solar irradiation at a pilot-scale. For all bacteria strains, the legally required detection limit (DL = 1 CFU 100 mL-1) for reclaimed water reuse was attained in a short contact time. Still, more importantly, the solar/free chlorine (2.5 mg L-1) process effectively avoided the possible bacterial regrowth in the post-treated sample after six days. Finally, the combination of free chlorine with solar irradiation provided a simple and energy-efficient process for OMC and bacteria removal in NW at a pilot-scale.
Assuntos
Palavras-chave
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Água / Cloro Idioma: En Revista: Chemosphere Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Água / Cloro Idioma: En Revista: Chemosphere Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido