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Assessment of diesel-contaminated domestic wastewater treated by constructed wetlands for irrigation of chillies grown in a greenhouse
- Source :
- Environmental Science and Pollution Research International
- Publisher :
- Springer Nature
-
Abstract
- In order to avoid environmental pollution and eliminate the need for using fertiliser, this study assessed for the first time the optimum performance of mature (in operation since 2011) vertical flow constructed wetlands in treating domestic wastewater (with and without hydrocarbon) and the subsequent recycling of the outflow to irrigate chillies (De Cayenne; Capsicum annuum (Linnaeus) Longum Group ‘De Cayenne’) grown in a greenhouse. Various variables were investigated to assess the treatment performance. Concerning chilli fruit numbers, findings showed that the highest fruit yields for all wetland filters were associated with those that received inflow wastewater with a high loading rate, reflecting the high nutrient availability in treated wastewater, which is of obvious importance for yield production. Findings also indicated that wetlands without hydrocarbon, small aggregate size, low contact time and low inflow loading rate provided high marketable yields (expressed in economic return). In comparison, chillies irrigated by filters with hydrocarbon contamination, small aggregate size, high contact time and high loading rate also resulted in high marketable yields of chillies, which pointed out the role of high contact time and high inflow load for better diesel degradation rates. Electronic supplementary material The online version of this article (doi:10.1007/s11356-016-7706-x) contains supplementary material, which is available to authorized users.
- Subjects :
- Capsicum annuum
Irrigation
Agricultural Irrigation
Health, Toxicology and Mutagenesis
Greenhouse
Sewage
Environmental pollution
Wetland
Wastewater
010501 environmental sciences
Ecological sanitation
Reed bed
Waste Disposal, Fluid
01 natural sciences
Environmental Chemistry
Recycling
Biomass
0105 earth and related environmental sciences
Agricultural water resources management
Water reclamation
geography
geography.geographical_feature_category
business.industry
Crop yield
Environmental engineering
food and beverages
04 agricultural and veterinary sciences
General Medicine
Pollution
Crop Production
Hydrocarbon contamination
Fruit
Wetlands
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
Environmental science
Sewage treatment
Nutrient and trace mineral control
Capsicum
business
Research Article
Subjects
Details
- Language :
- English
- ISSN :
- 09441344
- Database :
- OpenAIRE
- Journal :
- Environmental Science and Pollution Research
- Accession number :
- edsair.doi.dedup.....7161a5490109e672a915b0f69b9511f1
- Full Text :
- https://doi.org/10.1007/s11356-016-7706-x