Performance of hybrid biofilter based on rice husks/sawdust treating grey wastewater
An innovative nature-based technology for wastewater treatment is the hybrid biofiltration, which combines complex symbiotic relationships between plants, earthworms and microorganisms with adequate support components. This latter could be optimized using organic supports. The aim of this research w...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-05-01
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| Series: | Water Science and Technology |
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| Online Access: | http://wst.iwaponline.com/content/87/10/2416 |
| _version_ | 1797809008010067968 |
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| author | Kennedy Costa-Conceicao Cristina Alejandra Villamar Ayala Tatiana Dávila María Cristina Gallardo |
| author_facet | Kennedy Costa-Conceicao Cristina Alejandra Villamar Ayala Tatiana Dávila María Cristina Gallardo |
| author_sort | Kennedy Costa-Conceicao |
| collection | DOAJ |
| description | An innovative nature-based technology for wastewater treatment is the hybrid biofiltration, which combines complex symbiotic relationships between plants, earthworms and microorganisms with adequate support components. This latter could be optimized using organic supports. The aim of this research was to evaluate the performance of hybrid biofilters based on rice husks/sawdust treating grey wastewater from mining camps. Four biofilters using an active layer (rice husks/sawdust: 50/50%, v/v) at 60(B60) and 45(B45) cm height and operating for 64 days at a hydraulic loading rate between 1 and 5 m3/m2d were monitored. Eisenia foetida Savigny and Cyperus papyrus L. were used as a biotic component. COD, N-NH4+, NO3−, NO2−, PO43− and fecal coliforms were weekly monitored. Results showed that the most efficient HB was using 60 cm as an active layer and operating at 3 m3/m2d, which reported average removal efficiencies for COD, NH4+, NO3−, PO43− and fecal coliforms up to 85, 89, 47, 49 and 99.9%, respectively. Organic support improved the rate growth for Cyperus papirus L. and E. foetida Savigny up to 50%. Hybrid biofiltration using organic residues is low-cost, providing all-encompassing operational and performance features, improving the wastewater reclamation opportunities.
HIGHLIGHTS
Hybrid biofilters based on rice husks/sawdust at 3 m3/m2d remove efficiently organic matter (85%) and pathogens (99%).;
Rice husks/sawdust as support material improve the growth rate organisms (plants, earthworms) by up to 50%.;
Hydraulic loading rate is the most influential factor in the organic matter removal.; |
| first_indexed | 2024-03-13T06:46:08Z |
| format | Article |
| id | doaj.art-3de4b03d4fd9457daaef0fd769221d95 |
| institution | Directory Open Access Journal |
| issn | 0273-1223 1996-9732 |
| language | English |
| last_indexed | 2024-03-13T06:46:08Z |
| publishDate | 2023-05-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Science and Technology |
| spelling | doaj.art-3de4b03d4fd9457daaef0fd769221d952023-06-08T06:01:40ZengIWA PublishingWater Science and Technology0273-12231996-97322023-05-0187102416243110.2166/wst.2023.132132Performance of hybrid biofilter based on rice husks/sawdust treating grey wastewaterKennedy Costa-Conceicao0Cristina Alejandra Villamar Ayala1Tatiana Dávila2María Cristina Gallardo3 Departamento de Ingeniería Civil Química, Facultad de Ingeniería, Universidad de Santiago de Chile (USACH), Av. Libertador Bernardo ÓHiggins 3363, Estación Central, Santiago, Chile Departamento de Ingeniería en Obras Civiles, Facultad de Ingeniería, Universidad de Santiago de Chile (USACH), Av. Victor Jara 3659, Estación Central, Santiago, Chile Departamento de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional (EPN), Ladrón de Guevara E11-253, Quito, Ecuador Departamento de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional (EPN), Ladrón de Guevara E11-253, Quito, Ecuador An innovative nature-based technology for wastewater treatment is the hybrid biofiltration, which combines complex symbiotic relationships between plants, earthworms and microorganisms with adequate support components. This latter could be optimized using organic supports. The aim of this research was to evaluate the performance of hybrid biofilters based on rice husks/sawdust treating grey wastewater from mining camps. Four biofilters using an active layer (rice husks/sawdust: 50/50%, v/v) at 60(B60) and 45(B45) cm height and operating for 64 days at a hydraulic loading rate between 1 and 5 m3/m2d were monitored. Eisenia foetida Savigny and Cyperus papyrus L. were used as a biotic component. COD, N-NH4+, NO3−, NO2−, PO43− and fecal coliforms were weekly monitored. Results showed that the most efficient HB was using 60 cm as an active layer and operating at 3 m3/m2d, which reported average removal efficiencies for COD, NH4+, NO3−, PO43− and fecal coliforms up to 85, 89, 47, 49 and 99.9%, respectively. Organic support improved the rate growth for Cyperus papirus L. and E. foetida Savigny up to 50%. Hybrid biofiltration using organic residues is low-cost, providing all-encompassing operational and performance features, improving the wastewater reclamation opportunities. HIGHLIGHTS Hybrid biofilters based on rice husks/sawdust at 3 m3/m2d remove efficiently organic matter (85%) and pathogens (99%).; Rice husks/sawdust as support material improve the growth rate organisms (plants, earthworms) by up to 50%.; Hydraulic loading rate is the most influential factor in the organic matter removal.;http://wst.iwaponline.com/content/87/10/2416eisenia foetida savignygrey wastewaterhybrid biofiltrationhydraulic conductivityrice husk |
| spellingShingle | Kennedy Costa-Conceicao Cristina Alejandra Villamar Ayala Tatiana Dávila María Cristina Gallardo Performance of hybrid biofilter based on rice husks/sawdust treating grey wastewater Water Science and Technology eisenia foetida savigny grey wastewater hybrid biofiltration hydraulic conductivity rice husk |
| title | Performance of hybrid biofilter based on rice husks/sawdust treating grey wastewater |
| title_full | Performance of hybrid biofilter based on rice husks/sawdust treating grey wastewater |
| title_fullStr | Performance of hybrid biofilter based on rice husks/sawdust treating grey wastewater |
| title_full_unstemmed | Performance of hybrid biofilter based on rice husks/sawdust treating grey wastewater |
| title_short | Performance of hybrid biofilter based on rice husks/sawdust treating grey wastewater |
| title_sort | performance of hybrid biofilter based on rice husks sawdust treating grey wastewater |
| topic | eisenia foetida savigny grey wastewater hybrid biofiltration hydraulic conductivity rice husk |
| url | http://wst.iwaponline.com/content/87/10/2416 |
| work_keys_str_mv | AT kennedycostaconceicao performanceofhybridbiofilterbasedonricehuskssawdusttreatinggreywastewater AT cristinaalejandravillamarayala performanceofhybridbiofilterbasedonricehuskssawdusttreatinggreywastewater AT tatianadavila performanceofhybridbiofilterbasedonricehuskssawdusttreatinggreywastewater AT mariacristinagallardo performanceofhybridbiofilterbasedonricehuskssawdusttreatinggreywastewater |