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AIGUAMOLLS ARTIFICIALS PER A LA DEPURACIÓ
D’EFLUENTS LÍQUIDS
Aiguamolls artificials per a la depuració de lixiviats de l’h...
Objective

To present recent developments and points of view
in constructed wetlands

Koh Phi Phi, Thailand
CONSTRUCTED WETLANDS: conventional setup
Small communities

Pretreatment
(screening)

Primary treatment
(septic tank)
Seco...
CONSTRUCTED WETLANDS: conventional setup
•

Low levels of dissolved oxygen

•

No nitrification

•

Potential for H2S form...
The cartridge
The cartridge

Active
zone

Clogged
zone

Modified from Knowles et al. (2013). Ecol. Eng.
The cartridge

Clogged
zone
Active
zone

Modified from Knowles et al. (2013). Ecol. Eng.
The cartridge

Clogged
zone

Active
zone

Modified from Knowles et al. (2013). Ecol. Eng.
The cartridge

Clogged
zone

Active
zone

Modified from Knowles et al. (2013). Ecol. Eng.
CONSTRUCTED WETLANDS: vertical flow development

Brix and Arias (2005)

J.J. Salas

Molle et al. (2005)
CONSTRUCTED WETLANDS: recent developments
Concept of integrated treatment in constructed wetlands
1.

Urban wastewater

2....
Wastewater treatment line

Vertical flow
317 m2
Imhoff tank
Phragmites australis
Average flow ~ 14 m3/d
OLR ~ 9.6 g BOD5/m...
Sludge treatment line
Area: 20 m2

Loading regime: 1 time/month
Around 42 kg TS/m2.year

Water tank for water reuse
Receiv...
CONSTRUCTED WETLANDS: integrated wetland system
Goals of the treatment

E. Coli (log10 units UFC/100 mL)

1.
2.

Produce w...
CONSTRUCTED WETLANDS: integrated wetland system
Reliability of the system to a storm event of 45 mm in 1 hour (Q=
2,5Qd,av...
CONSTRUCTED WETLANDS: integrated wetland system

WATER TANK

Ibuprofen

Triclosan
Acetaminofen
Tonalide
Diclofenac
Bisphen...
HETEROTROPHIC BACTERIA

mgCOD l-1

FERMENTING BACTERIA

1 year

2 years

3 years
REFERENCES
MANUAL PARA LA IMPLANTACIÓN DE SISTEMAS DE DEPURACIÓN EN
PEQUEÑAS POBLACIONES. CEDEX-CENTA
García, J y Corzo, A...
joan.garcia@upc.edu
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AIGUAMOLLS ARTIFICIALS PER A LA DEPURACIÓ D’EFLUENTS LÍQUIDS

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Aiguamolls artificials per a la depuració de lixiviats de l’horticultura fora de sòl
Joan García. UPC, Barcelona

Published in: Technology
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AIGUAMOLLS ARTIFICIALS PER A LA DEPURACIÓ D’EFLUENTS LÍQUIDS

  1. 1. AIGUAMOLLS ARTIFICIALS PER A LA DEPURACIÓ D’EFLUENTS LÍQUIDS Aiguamolls artificials per a la depuració de lixiviats de l’horticultura fora de sòl (Cabrils, 18 de novembre de 2013) Joan García (UPC, Barcelona)
  2. 2. Objective To present recent developments and points of view in constructed wetlands Koh Phi Phi, Thailand
  3. 3. CONSTRUCTED WETLANDS: conventional setup Small communities Pretreatment (screening) Primary treatment (septic tank) Secondary treatment (horizontal constructed wetlands) TSS (mg/L) Year BOD5 (mg/L) In In Out 2003 200 (140) 10 (8) 120 (77) 5 (2) 2004 150 (60) 19 (11) 88 (29) 9 (5) 2005 250 (340) 22 (20) 230 (190) 16 (12) 2006 110 (80) 15 (10) 110 (40) 12 (6) 2007 Verdú, Lleida, Spain Verdú, Lleida, España Out 330 (270) 24 (12) 250 (120) 15 (7) 2008 270 (170) 20 (20) 230 (120) 11 (6)
  4. 4. CONSTRUCTED WETLANDS: conventional setup • Low levels of dissolved oxygen • No nitrification • Potential for H2S formation, GHG emissions 1 /L SO42-, mg/L SO42-, mg/L In 250 200 150 100 50 0 200 150 100 50 0 250 200 C2-June C2-August Inf lue C2-July C2-December 1 nt 2 3 Eff lu en Location D2-June Inf t l ue 1 nt 2 3 Eff lu en Location t D2-July García et al. (2004) 2 3 Out
  5. 5. The cartridge
  6. 6. The cartridge Active zone Clogged zone Modified from Knowles et al. (2013). Ecol. Eng.
  7. 7. The cartridge Clogged zone Active zone Modified from Knowles et al. (2013). Ecol. Eng.
  8. 8. The cartridge Clogged zone Active zone Modified from Knowles et al. (2013). Ecol. Eng.
  9. 9. The cartridge Clogged zone Active zone Modified from Knowles et al. (2013). Ecol. Eng.
  10. 10. CONSTRUCTED WETLANDS: vertical flow development Brix and Arias (2005) J.J. Salas Molle et al. (2005)
  11. 11. CONSTRUCTED WETLANDS: recent developments Concept of integrated treatment in constructed wetlands 1. Urban wastewater 2. Runoff (overflows) 3. Sludge 4. Reuse Carrión de los Céspedes, Seville, Spain (Center for New Water Technologies)
  12. 12. Wastewater treatment line Vertical flow 317 m2 Imhoff tank Phragmites australis Average flow ~ 14 m3/d OLR ~ 9.6 g BOD5/m2.d Horizontal subsurface flow 229 m2 Free water surface flow 240 m2
  13. 13. Sludge treatment line Area: 20 m2 Loading regime: 1 time/month Around 42 kg TS/m2.year Water tank for water reuse Receives water from the effluent of constructed wetlands for its reuse Capacity: 20 m3
  14. 14. CONSTRUCTED WETLANDS: integrated wetland system Goals of the treatment E. Coli (log10 units UFC/100 mL) 1. 2. Produce water with reuse quality Robust systems to treat combined sewer discharges • Its quality fulfills the Spanish guidelines for: - Recharge of aquifers by percolation through the ground - Irrigation of green areas non accessible to the public - Silviculture 12 10 8 6 4 2 0 Influent Imhoff VF HSSF FWSWater tank Treatment unit
  15. 15. CONSTRUCTED WETLANDS: integrated wetland system Reliability of the system to a storm event of 45 mm in 1 hour (Q= 2,5Qd,avg) 1000 TSS VS -1 Solids (mg L ) 800 600 400 200 0 0 30 60 90 120 150 180 210 240 270 300 330 360 Time (min) Concentration (mg L -1) 60 FWS 50 40 TSS VS COD NH4-N NOx-N 30 20 10 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Time (h)
  16. 16. CONSTRUCTED WETLANDS: integrated wetland system WATER TANK Ibuprofen Triclosan Acetaminofen Tonalide Diclofenac Bisphenol A Ávila et al. (2013)
  17. 17. HETEROTROPHIC BACTERIA mgCOD l-1 FERMENTING BACTERIA 1 year 2 years 3 years
  18. 18. REFERENCES MANUAL PARA LA IMPLANTACIÓN DE SISTEMAS DE DEPURACIÓN EN PEQUEÑAS POBLACIONES. CEDEX-CENTA García, J y Corzo, A. (2009). Depuración con humedales construidos: guía práctica de diseño, construcción y explotación de sistemas de humedales de flujo subsuperficial. Descarga gratuita en https://upcommons.upc.edu/e-prints/handle/2117/668 Groupe Macrophytes et Traitement des Eaux (2005). Épuration des eaux usees domestiques par filtres de plantes de macrophytes. Descarga gratuita en http://www.eaurmc.fr/documentation/files/Guide%20Macrophytes.pdf Kadlec, R.H. y Wallace (2008). Treatment Wetlands. CRC Press, Florida.
  19. 19. joan.garcia@upc.edu

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