SustSan workshop: Hostetin village WWPT - 20 years of the combined constructed wetland by Prof. Milos Rozkosny
•
2 likes•281 views
This document summarizes a 20-year project using constructed wetlands and waste stabilization ponds to treat wastewater in the village of Hostětín in the Czech Republic. The project began in 1993 and involved mechanical pretreatment followed by treatment in constructed wetlands and final purification in waste stabilization ponds. Monitoring has shown the system achieves high removal rates of over 60% for BOD5 and COD on average. The natural treatment system has provided environmental and educational benefits to the local community while requiring low operation and maintenance costs. It serves as a model for small wastewater treatment in the Czech Republic.
Recommended
More Related Content
Viewers also liked
Viewers also liked (20)
Similar to SustSan workshop: Hostetin village WWPT - 20 years of the combined constructed wetland by Prof. Milos Rozkosny
Similar to SustSan workshop: Hostetin village WWPT - 20 years of the combined constructed wetland by Prof. Milos Rozkosny (20)
More from Global Water Partnership Central and Eastern Europe
More from Global Water Partnership Central and Eastern Europe (20)
Recently uploaded
Recently uploaded (20)
SustSan workshop: Hostetin village WWPT - 20 years of the combined constructed wetland by Prof. Milos Rozkosny
- 1. Hostětín village WWTP 20 years of the combined constructed wetland – stabilization pond project Miloš Rozkošný T.G.Masaryk Water Research Institute, p.r.i. http://www.vuv.cz/en/home
- 2. Natural technologies in the Czech Republic 32 109 18 18 64 45 0 20 40 60 80 100 120 pouze mechanická aktivace biodisk biofiltr kořenová ČOV, zemní filtr, biologická nádrž nespecifikovaná mechanicko- biologická WWTP < 500 p.e. (2008) – 286 plants, about 25 % natural technologies Mlejnská, Rozkošný a kol., 2009 Natural technologies – survey in Danube River Basin Biofilters Natural technologies Activated sludge systems Biodiscs Mechanical treatment Non-specified
- 4. Hostětín – project background
- 5. Hostětín – project background Hostětín village – about 200 inhabitants, Zlínský kraj Region 1960 – water reservoir Bojkovice – main purpose – dringing water supply 1966 – prohibition of construction in the village (in the water reservoir catchment) After 1989 – social & state administration changes 1990 – sewerage construction in the village 1993 – first survey and study of wastewater treatment – proposal of WWTP technology – O&M cost analysis, chosen type – combined WWTP (mechanical pretreatment, constructed wetland, final purification – waste stabilization pond) 1996 – implementation of the project 2004 – second survey, workshop 2006, 2010, 2012-2015 – monitoring programmes, upgrade of the treatment system
- 8. Treatment effciency Profile Hydraulic loading BOD5 COD TSS N-NH4 + TP m3/ (m2 of CW per day) g / (m2 of CW per day) Designed Inflow 0,04 5,7 --- --- --- --- Monitored and calculated Inflow 0,18 5,7 13,0 0,5-6,5 2,9 0,24
- 9. Treatment effciency Profil Inflow CW outflow Final outflow Par. BOD5 min. 1 1,90 0,20 avg. 64,9 16,69 13,21 max. 195 68,00 28 Par. COD min. 17 8 12 avg. 142,8 42,27 44,54 max. 588 78 109 Par. TSS min. 8 1 8 avg. 41,9 9,82 27,77 max. 123 16 64 Par. N-NH4 + min. 2,79 1,27 0,09 avg. 23,25 18,56 9,15 max. 44,00 36,64 25,21 Par. TP min. 0,57 0,23 0,24 avg. 2,84 3,08 1,74 max. 5,81 5,16 3,94
- 10. Final purification by waste stabilization pond N-NH4 TP mg/l mg/l mg/l mg/l KP OD SN OD KP OD SN OD VII/03 25,8 0,1 4,2 1,2 X/03 28,8 16,0 4,7 2,9 XII/03 27,5 18,5 5,2 3,9 IV/04 1,3 1,2 0,2 0,2 V/04 8,6 5,0 2,4 0,8 VIII/04 21,7 6,8 4,0 2,2 IX/04 36,6 8,1 4,4 2,3 X/04 30,7 25,2 4,6 3,2 XII/04 8,2 5,9 1,7 1,2 II/05 10,9 8,5 1,7 1,6 III/05 4,1 3,5 0,7 0,4 AVG 18,6 8,9 3,1 1,8 N-NH4 TN TP mg/l mg/l mg/l mg/l mg/l mg/l KP SN KP SN KP SN VI/10 1,5 0,1 2,0 1,1 0,2 0,2 VII/10 5,1 7,5 5,6 7,4 0,7 1,0 X/10 4,2 2,4 4,7 3,2 1,7 0,3 XI/10 9,1 5,6 9,1 6,4 1,5 1,4 AVG 5,0 3,9 5,4 4,5 1,0 0,7
- 11. Biology of WSP ind/ml Bacillario- phyceae Cyano- phyceae Crypto- phyceae Eugleno- phyceae Chlorophyta- kokální Chlorophyta- monadoidní Tvzd (°C) Tv (°C) O2 (mg/l) pH 8/2009 0 40 1000 400 0 0 21 20,5 1,1 8,0 9/2009 0 0 0 1800 0 0 18 16,2 2,4 8,1 10/2009 0 200 0 400 0 0 3 8,0 3,6 7,8 11/2009 4 8 0 200 0 0 12 8,6 4,8 7,8 12/2009 0 40 0 1240 0 0 9 7,9 3,5 8,0 2/2010 0 120 0 700 20 0 1 1,8 0,8 7,9 3/2010 0 400 0 28000 245 0 18 12,0 13,5 8,2 4/2010 0 300 0 14200 563 1200 16 12,9 2,7 8,0 5/2010 36 12 0 1000 423 2000 9 11,0 1,8 7,7 6/2010 4 0 0 20200 12 32800 24 21,2 14,8 8,0 7/2010 0 28 0 276 320000 4 29 23,8 0,5 7,8 8/2010 0 500 0 300 100000 8600 13 14,4 3,2 7,6 9/2010 40 28 0 460 100000 40 15 12,0 5,8 7,8 10/2010 0 12 0 9404 56 6100 7 7,6 5,2 7,8 11/2010 0 4 0 19100 125 2200 10 9,9 5,5 7,9 12/2010 4 4 0 912 74 0 2 3,7 1,2 7,8
- 12. Investment O & M cost
- 13. Target beneficiarities Village • better water quality • village development • working positions NATURE :) Research, water management sector Education primary & secondary schools, uni students, participants of meetings and workshops (not only water management), public, officers, mayors of small settlements Turism part of village ecological projects and NGO Veronica activities in the region
- 15. Lessons learned & recommendations 1. Experiences with the technology in long-term course 2. Operation and maintentace 3. Urban and landscape planning, process of implementation 4. Recommendations for the technology development and application Good example of the decision making process and implementation, But only few similar projects in the country (few disciples)
- 16. T. G. Masaryk Water Research Institute, p.r.i. | Podbabská 30/2582, 160 00 Prague 6, Czech Republic | +420 220 197 111 | info@vuv.cz, www.vuv.cz Brno Branch | Mojmírovo náměstí 16, 612 00 Brno, Czech Republic | +420 541 126 311 | info_brno@vuv.cz Ostrava Branch | Macharova 5, 702 00 Ostrava, Czech Republic | +420 596 134 181 | info_ostrava@vuv.cz