Integrated constructed wetlands: water management as a land-use issue, implementing the ‘Ecosystem Approach’

2011 ◽  
Vol 63 (12) ◽  
pp. 2929-2937 ◽  
Author(s):  
R. Harrington ◽  
P. Carroll ◽  
S. Cook ◽  
C. Harrington ◽  
M. Scholz ◽  
...  

Awareness of the need for social, economic and environmental coherence in the management of water is becoming evermore apparent. Water supply as well as treatment is becoming more costly; a challenge that is not only limited to developing countries. The use of wetlands, natural and constructed, is now more widely accepted as a means of tackling a range of problems in water management to deliver this coherence. The use of 16 Integrated Constructed Wetlands that mimic shallow, emergent-vegetated, palustrine wetlands in a 2,500 ha catchment in County Waterford, Southeast Ireland, has shown a number of distinct advantages in implementing the all encompassing ‘Ecosystem Approach’, addressing the key elements for sustainable water management in an intensively used agricultural area. The significant increase in water quality, biodiversity, social amenities and acceptance by the local rural community provided by this ‘real’ field-scale demonstration show the benefits that such a joined-up approach can have on catchment management in the widest sense.

2021 ◽  
Vol 13 (12) ◽  
pp. 6853
Author(s):  
Erick Arturo Betanzo-Torres ◽  
María de los Ángeles Piñar-Álvarez ◽  
Celia Gabriela Sierra-Carmona ◽  
Luis Enrique García Santamaria ◽  
Cecilia-Irene Loeza-Mejía ◽  
...  

Conventional aquaculture (ACUA-C) in Mexico is an activity that maintains an annual growth rate of 6%. Tilapia (Oreochromis niloticus) aquaculture is the predominant aquaculture in the country with 4623 farms, most of which operate with semi-intensive (SIS) and extensive (ES) production systems, discharging untreated wastewater that negatively impacts the environment. To address this problem, new ecotechnologies such as biofloc (BFT), recirculation systems for aquaculture (RAS), constructed wetlands (CWs) for water treatment, and aquaponics (AS) have emerged to mitigate the environmental impacts of untreated wastewater. The objective of this work is to evaluate the feasibility of tilapia farming with BFT, RAS, CW, and AS ecotechnologies through an economic and financial feasibility analysis, considering their environmental and social implications in a Mexican aquaculture farm located in the state of Veracruz. Open interviews, direct observation, and diagnosis of the semi-intensive tilapia system was carried out between 15 May 2019 and 15 February 2020 in order to calculate, design, and theoretically evaluate the four ecotechnological alternatives (TBF, RAS, CW, and AS). Economic (13), environmental (10), and social (5) variables were applied, making use of the same facilities. The results reveal that the four ecotechnologies implemented in an SIS are economically viable and environmentally acceptable, especially in water management, in addition to being socially feasible. It is concluded that BFT offers an alternative to the producer by having a lower additional cost to improve problems, despite the possible complexity of operation and energy requirements to manage wastewater treatment. The technological transition to BFT is recommended to solve the problem of sustainable water management.


2019 ◽  
Author(s):  
D.C. Sirimewan1 ◽  
◽  
N.H.C. Manjula ◽  
A. Samaraweera ◽  
A.P.K.D. Mendis ◽  
...  

2002 ◽  
Vol 46 (6-7) ◽  
pp. 151-158 ◽  
Author(s):  
L. Dallmer

This paper describes part of a program undertaken by South Sydney City Council to promote sustainable water management The aim of the project, named SQIRTS (Stormwater Quality Improvement & Reuse Treatment Scheme) was to demonstrate best-practice water management approaches, to learn from the process of implementing these, and to encourage the further use of these technologies. It comprises three main components located in a suburban park: a gross pollutant trap (GPT), a stormwater reuse system, and interpretative artworks that aim to educate and interpret the water processes within the park. Results from the pre-construction monitoring program are presented.


Water Policy ◽  
2010 ◽  
Vol 12 (5) ◽  
pp. 675-694 ◽  
Author(s):  
Paola Sabina Lupo Stanghellini

Water is a central resource supporting human activities and ecosystems and it is required for different purposes and uses that are often conflicting. Existing water-related problems are expected to increase and conventional water resource management systems are not likely to be able to face future challenges. There is the need for an integrated water resources management, which should be participatory, technically and scientific informed and which should be based on bottom-up approach. The Directive 2000/60/EC is based on principles of integrated planning and calls for stakeholder involvement in water management. Involving stakeholders is an important step to ensure that catchment management plans take into consideration local needs, experiences and interests. This paper presents a stakeholder analysis methodology that was developed to support stakeholder participation in water management. The methodology was implemented as a preliminary step in a stakeholder participation project in an alpine sub-catchment in Northern Italy.


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