Recovering water from brine: Assessments of feasibility and applicability to irrigation processes

Poblete, Rodrigo; Painemal, Osvaldo

doi:10.1016/j.desal.2018.04.001

Cited by 2 publications

(1 citation statement)

References 42 publications

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“…It is therefore essential to adopt some pretreatment processes to reduce moisture content and hence the energy requirements for the pyrolysis process [17]. Solar and artificial dryers are among the options for drying food waste, as drying can significantly reduce waste volume by reducing moisture levels and thereby provide more and better waste management and storage options [18]. Despite the chosen veggies' decent moisture levels, they have a high-level volatile composition, making them potential energy sources.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis Valorization of Vegetable Wastes: Thermal, Kinetic, Thermodynamics, and Pyrogas Analyses

et al. 2022

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In comparison to other methods, valorising food waste through pyrolysis appears to be the most promising because it is environmentally friendly, fast, and has a low infrastructure footprint. On the other hand, understanding the pyrolytic kinetic behaviour of feedstocks is critical to the design of pyrolysers. As a result, the pyrolytic degradation of some common kitchen vegetable waste, such as tomato, cucumber, carrot, and their blend, has been investigated in this study using a thermogravimetric analyser. The most prevalent model fitting method, Coats–Redfern, was used for the kinetic analysis, and the various mechanisms have been investigated. Some high-quality fitting mechanisms were identified and used to estimate the thermodynamic properties. As the generation of pyrolysis gases for chemical/energy production is important to the overall process applicability, TGA-coupled mass spectrometry was used to analyse the pyrogas for individual and blend samples. By comparing the devolatilization properties of the blend with single feedstocks, the presence of chemical interactions/synergistic effects between the vegetable samples in the blend was validated. The model, based on a first-order reaction mechanism, was found to be the best-fitting model for predicting the pyrolysis kinetics. The calculated thermodynamic properties (ΔH (enthalpy change ≈ E (activation energy))) demonstrated that pyrolysis of the chosen feedstocks is technically feasible. According to the TGA–MS analysis, blending had a considerable impact on the pyrogas, resulting in CO2 composition reductions of 17.10%, 9.11%, and 16.79%, respectively, in the cases of tomato, cucumber, and carrot. Overall, this study demonstrates the viability of the pyrolysis of kitchen vegetable waste as a waste management alternative, as well as an effective and sustainable source of pyrogas.

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Section: Introductionmentioning

confidence: 99%

Pyrolysis Valorization of Vegetable Wastes: Thermal, Kinetic, Thermodynamics, and Pyrogas Analyses

et al. 2022

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Field solution to produce irrigation-drinking water by condensation irrigation system from seawater

et al. 2022

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Condensation irrigation (CI) combines desalination with subsurface irrigation. Here, solar stills are used to heat and humidity air, which is condensed in underground drainage pipes to irrigate the soil, directly in the root zone. This article describes and evaluates a CI field test at Shahid Chamran University of Ahvaz in Iran. The objective was to gain a deeper understanding of the CI system in the production of drinking and irrigation water and to do a detailed assessment of heat and moisture transfer in the soil. Perforated and unperforated PVC pipes were used in two separate experiments while airflow properties, soil temperature and humidity, and ambient air temperature were monitored. The system produced 6 kg of irrigation water during eight hours, in the 25 m long pipe. When using an unperforated pipe, 4 kg of freshwater was collected at the pipe ending after eight hours of operation. The preliminary economic analysis of irrigation system indicates a payback time of less than 6 years.

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Recovering water from brine: Assessments of feasibility and applicability to irrigation processes

Cited by 2 publications

References 42 publications

Pyrolysis Valorization of Vegetable Wastes: Thermal, Kinetic, Thermodynamics, and Pyrogas Analyses

Pyrolysis Valorization of Vegetable Wastes: Thermal, Kinetic, Thermodynamics, and Pyrogas Analyses

Field solution to produce irrigation-drinking water by condensation irrigation system from seawater

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