Next Article in Journal
Impact of the Storm Sewer Network Complexity on Flood Simulations According to the Stroke Scaling Method
Previous Article in Journal
Application of Microbial Technology Used in Bioremediation of Urban Polluted River: A Case Study of Chengnan River, China
Previous Article in Special Issue
Assessment of a Field Tidal Flow Constructed Wetland in Treatment of Swine Wastewater: Life Cycle Approach
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Water 2018, 10(5), 644; https://doi.org/10.3390/w10050644

Long-Term Monitoring of a Surface Flow Constructed Wetland Treating Agricultural Drainage Water in Northern Italy

1
Department of Agricultural and Food Sciences, Alma Mater Studiorum-University of Bologna, Viale Giuseppe Fanin 40-50, 40127 Bologna, Italy
2
Consorzio di Bonifica Canale Emiliano Romagnolo, Via Ernesto Masi 8, 40137 Bologna, Italy
*
Author to whom correspondence should be addressed.
Received: 28 February 2018 / Revised: 3 May 2018 / Accepted: 9 May 2018 / Published: 16 May 2018
(This article belongs to the Special Issue Wetlands for the Treatment of Agricultural Drainage Water)
View Full-Text   |   Download PDF [1914 KB, uploaded 17 May 2018]   |  

Abstract

Agricultural drainage water that has seeped into tile drainage systems can cause nitrogen and phosphorus pollution of the surface water bodies. Constructed wetlands (CWs) can help mitigate the effects of agricultural non-point sources of pollution and remove different pollutants from tile drainage water. In this study, hydrological and water quality data of a Northern Italian CW that has been treating agricultural drainage water since 2000 were considered to assess its ability to mitigate nitrogen and phosphorus pollution. The effects of such long-term operation on the nutrients and heavy metals that eventually accumulate in CW plants and sediments were also analysed. Since 2003, the CW has received different inflows with different nutrient loads due to several operation modes. However, on average, the outflow load has been 50% lower than the inflow one; thus, it can be said that the system has proved itself to be a viable option for tile drainage water treatment. It was found that the concentration of nitrogen and phosphorus in the plant tissues varied, whereas the nitrogen content of the soil increased more than 2.5 times. Heavy metals were found accumulated in the plant root systems and uniformly distributed throughout a 60 cm soil profile at levels suitable for private and public green areas, according to the Italian law View Full-Text
Keywords: agricultural drainage water; superficial flow constructed wetlands; nutrients; potentially toxic elements agricultural drainage water; superficial flow constructed wetlands; nutrients; potentially toxic elements
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Share & Cite This Article

MDPI and ACS Style

Lavrnić, S.; Braschi, I.; Anconelli, S.; Blasioli, S.; Solimando, D.; Mannini, P.; Toscano, A. Long-Term Monitoring of a Surface Flow Constructed Wetland Treating Agricultural Drainage Water in Northern Italy. Water 2018, 10, 644.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top