Winery wastewater treatment for biomolecules recovery and water reuse purposes

Winery wastewater has a high pollutant load, but it also contains added-value molecules, such as phenolic compounds, which can be recovered. The recovery of these biomolecules has aroused great interest, providing benefits under different aspects, such as valorization of byproducts recovered from wastewater; reduction of the pollutant load of winery wastewater, facilitating its treatment and reuse in agriculture; reducing the environmental impacts of wineries; and promotion of the circular economy, due to the recovery of biomolecules and water reuse. Based on these matters, the chapter focuses on bringing relevant aspects about the generation of wastewater throughout the winemaking process, indicating the main biomolecules of commercial interest present in the wastewater, and proposing processes for the recovery of these biomolecules. In addition, the main technologies that are used in the treatment of winery wastewater are reported and discussed, envisaging the reuse of treated wastewater in agriculture.info:eu-repo/semantics/publishedVersio

Reasoning about river basins: WaWO+ revisited

© . This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/This paper characterizes part of an interdisciplinary research effort on Artificial Intelligence (AI) techniques and tools applied to Environmental Decision-Support Systems (EDSS). WaWO+ the ontology we present here, provides a set of concepts that are queried, advertised and used to support reasoning about and the management of urban water resources in complex scenarios as a River Basin. The goal of this research is to increase efficiency in Data and Knowledge interoperability and data integration among heterogeneous environmental data sources (e.g., software agents) using an explicit, machine understandable ontology to facilitate urban water resources management within a River Basin.Peer ReviewedPostprint (author's final draft

Irrigation with Treated Wastewater: Potential and Limitations

As the world population increases and resources become more coveted, water emerges as a key component to global food security. The Middle East and North Africa (MENA) is among the driest regions in the world: containing just one percent of the world\u27s freshwater resources. An increasing population creates greater quantities of wastewater and demands greater quantities of food, so an obvious connection arises. However logical wastewater reuse may be for bridging the irrigation supply-demand gap in this arid region, significant limitations prevent widespread adoption. The overall goal of this research is to take a holistic view of the limitations facing communities with regard to integrating treated wastewater in agricultural production schemes. This research considers unique communities in Palestine, Tunisia, Qatar, and as a comparison, the state of Indiana in the United States, and evaluates the limitations which technology, policy, and farmer perceptions place on the potential for treated wastewater reuse in agriculture. A mixed methods approach has been be employed to evaluate the specific limitations of treated wastewater reuse in each study location. Interviews with heads of households, farmers, and experts in wastewater and agriculture were conducted and samples of treated wastewater effluent were collected in each study location. The limitations facing each location are unique depending on socio-economic conditions, wastewater treatment infrastructure and technologies, extension efforts in the community, severity of water shortage, and the nature of the policies and monitoring in place with regard to wastewater management. This research aims to inform local partners and development practitioners of the challenges facing Tunisia, Palestine, Qatar, and Indiana with regard to irrigation with treated wastewater and better prepare those entities to address growing concerns about water scarcity and food security. In synthesis, a greater understanding of the overall challenges facing this issue, regardless of location, will be achieved

Irrigation with Treated Wastewater: Potential and Limitations

As the world population increases and resources become more coveted, water emerges as a key component to global food security. The Middle East and North Africa (MENA) is among the driest regions in the world: containing just one percent of the world\u27s freshwater resources. An increasing population creates greater quantities of wastewater and demands greater quantities of food, so an obvious connection arises. However logical wastewater reuse may be for bridging the irrigation supply-demand gap in this arid region, significant limitations prevent widespread adoption. The overall goal of this research is to take a holistic view of the limitations facing communities with regard to integrating treated wastewater in agricultural production schemes. This research considers unique communities in Palestine, Tunisia, Qatar, and as a comparison, the state of Indiana in the United States, and evaluates the limitations which technology, policy, and farmer perceptions place on the potential for treated wastewater reuse in agriculture. A mixed methods approach has been be employed to evaluate the specific limitations of treated wastewater reuse in each study location. Interviews with heads of households, farmers, and experts in wastewater and agriculture were conducted and samples of treated wastewater effluent were collected in each study location. The limitations facing each location are unique depending on socio-economic conditions, wastewater treatment infrastructure and technologies, extension efforts in the community, severity of water shortage, and the nature of the policies and monitoring in place with regard to wastewater management. This research aims to inform local partners and development practitioners of the challenges facing Tunisia, Palestine, Qatar, and Indiana with regard to irrigation with treated wastewater and better prepare those entities to address growing concerns about water scarcity and food security. In synthesis, a greater understanding of the overall challenges facing this issue, regardless of location, will be achieved

Urban wastewater reuse for citrus irrigation in Algarve, Portugal—Environmental benefits and carbon fluxes

Water scarcity is increasing in the Mediterranean and alternative sources of water are needed to meet food production needs, protect the environment and reduce the effects of climate change. Currently, many urban wastewater treatment plants (WWTP) produce high volumes of treated effluents which can be an alternative source of water for agriculture irrigation, since they fulfill the quality requirements for crops and the environment. This work analyzed the quantity and quality of a treated effluent produced by an urban WWTP in Algarve, and the environmental benefits of its use on the irrigation of a citrus orchard, as an alternative to groundwater. Carbon dioxide emissions related to orange production were quantified and the orchard’s potential to sequester CO2 was estimated. The reuse of this urban wastewater is revealed to be technologically feasible and environmentally advantageous, avoiding the overexploitation of the local aquifer and preventing the eutrophication of aquatic ecosystems, contributing to the improvement of soil characteristics and decreasing the carbon emissions in orange production. Furthermore, it was found that during the five-month experimental period, the citrus orchard sequestered 87.5% of the CO2e emitted by WWTP in the effluent treatment, converting 72,623 kg of sequestered CO2 into orange biomassinfo:eu-repo/semantics/publishedVersio

Smart city: an advanced framework for analyzing public sentiment orientation toward recycled water

The coronavirus pandemic of the past several years has had a profound impact on all aspects of life, including resource utilization. One notable example is the increased demand for freshwater, a lifeblood of our planet, on the other hand, the smart city vision aims to attain a smart water management goal by investing in innovative solutions such as recycled water systems. However, the problem lies in the public’s sentiment and willingness to use this new resource which discourages investors and hinders the development of this field. Therefore, in our work, we applied sentiment analysis using an extended version of the fuzzy logic and neural network model from our previous work, to find out the general public opinion regarding recycled water and to assess the effects of sentiments on the public’s readiness to use this resource. Our analysis was based on a dataset of over 1 million text content from 2013 to 2022. The results show, from spatio-temporal perspectives, that sentiment orientation and acceptance-behavior towards using recycled water have increased positively. Additionally, the public is more concerned in areas driven by the smart city vision than in areas of medium and low economic development, where investment in sensibilization campaigns is needed

SMART - IWRM : Integrated Water Resources Management in the Lower Jordan Rift Valley; Project Report Phase I (KIT Scientific Reports ; 7597)

This book provides an overview of the large scale Integrated Water Resources Management (IWRM) research program SMART at the Lower Jordan River Basin which aims at local implementation, knowledge & capacity building. The focus of the first phase is placed on decentralised wastewater treatment and reuse, water quality including emerging pollutants, management and modelling of groundwater systems, artificial recharge, socio-economic frameworks, a transboundary database and decision support tools

What’s in a name? Politicising wastewater reuse in irrigated agriculture

Wastewater is increasingly being reused as a solution to water scarcity in agriculture. This article combines a literature review with an ethnographic study of water reuse in Dar es Salaam, Tanzania, to explore the field of wastewater reuse and what it is made to represent. The academic literature largely focuses on the practical challenges of wastewater treatment, while underlying political dynamics that contextualise the planning of, and control over, water flows remain largely unaddressed. Because people seek to take control over water through the manipulation of flows and qualities, wastewater reuse is inherently political. The study of water reuse practices in Dar es Salaam shows how water quality decline is co-produced with processes of urbanisation that cause inequalities in the urban waterscape. Farmers are subject to changes in the physical characteristics and normative understandings of the urban water system, yet do not have the power to reconfigure these to their own ends or challenge the way that their practices are portrayed. This paper shows the importance of politicising wastewater reuse and calls for a more diverse and emancipatory understanding of, and response to, water reuse in agriculture through interdisciplinary research and the collaborative production of knowledge and interventions

Perspectives on Dual-Purpose Smart Water Power Infrastructures for Households in Arid Regions

In hot arid climates, freshwater and power are produced simultaneously through seawater desalination since these regions receive little rainfall. This results in a unique urban water/power cycle that often faces sustainability and resilience challenges. Elsewhere, such challenges have been addressed through smart grid technologies. This chapter explores opportunities and initiatives for implementing smart grid technologies at household level for a case study in Qatar. A functional dual-purpose smart water/power nanogrid is developed. The nanogrid includes multiloop systems for on-site water recycling and on-site power generation based on sustainability concepts. A prototype dual-purpose GSM-based smart water/power nanogrid is assembled and tested in a laboratory. Results of case study implementation show that the proposed nanogrid can reduce energy and water consumptions at household level by 25 and 20%, respectively. Economic analysis shows that implementing the nanogrid at household level has a payback period of 10 years. Hence, larger-scale projects may improve investment paybacks. Extension of the nanogrid into a resilient communal microgrid and/or mesogrid is discussed based on the concept of energy semantics. The modularity of the nanogrid allows the design to be adapted for different scale applications. Perspectives on how the nanogrid can be expanded for large scale applications are outlined