A Review on Pesticide degradation from irrigation water and techno‐economic feasibility of treatment technologies

2021 ◽  
Author(s):  
Chirag Mandar Mule ◽  
Sarjerao Bapu Doltade ◽  
Aniruddha Bhalchandra Pandit
2019 ◽  
Vol 70 (7) ◽  
pp. 2524-2529 ◽  
Author(s):  
Andreea D. Dima ◽  
Carmen Mateescu ◽  
Oana C. Parvulescu ◽  
Eduard M. Lungulescu ◽  
Nicoleta O. Nicula

Anaerobic digestion of organic matter with high moisture content has proven to be a suitable method for disposal of wet organic residuals with several advantages compared to other treatment technologies. This paper aimed at evaluating the theoretical and experimental biomethane potential of food processing residuals that are responsible for negative environmental impact, with exemplification for the potato processing waste. The biomethane potential is a useful parameter to assess the economic efficiency of anaerobic digestion processes as it can considerably influence the efficiency and the economic feasibility of the energy recovery technologies. Both experimental and theoretical biomethane potentials of potato waste in mesophilic anaerobic digestion as well as biodegradability of the substrate were estimated. Moreover, effects of microalgal extract addition on the digestion of potato waste were examined in an attempt to stimulate the anaerobic digestion. Cone model and a modified Gompertz model were used to predict the dynamics of biomethane production.


2013 ◽  
Vol 64 (12) ◽  
pp. 1171 ◽  
Author(s):  
L. Pendergast ◽  
S. P. Bhattarai ◽  
D. J. Midmore

Australian cotton (Gossypium hirsutum L.) is predominantly grown on heavy clay soils (Vertosols). Cotton grown on Vertosols often experiences episodes of low oxygen concentration in the root-zone, particularly after irrigation events. In subsurface drip-irrigation (SDI), cotton receives frequent irrigation and sustained wetting fronts are developed in the rhizosphere. This can lead to poor soil diffusion of oxygen, causing temporal and spatial hypoxia. As cotton is sensitive to waterlogging, exposure to this condition can result in a significant yield penalty. Use of aerated water for drip irrigation (‘oxygation’) can ameliorate hypoxia in the wetting front and, therefore, overcome the negative effects of poor soil aeration. The efficacy of oxygation, delivered via SDI to broadacre cotton, was evaluated over seven seasons (2005–06 to 2012–13). Oxygation of irrigation water by Mazzei air-injector produced significantly (P < 0.001) higher yields (200.3 v. 182.7 g m–2) and water-use efficiencies. Averaged over seven years, the yield and gross production water-use index of oxygated cotton exceeded that of the control by 10% and 7%, respectively. The improvements in yields and water-use efficiency in response to oxygation could be ascribed to greater root development and increased light interception by the crop canopies, contributing to enhanced crop physiological performance by ameliorating exposure to hypoxia. Oxygation of SDI contributed to improvements in both yields and water-use efficiency, which may contribute to greater economic feasibility of SDI for broadacre cotton production in Vertosols.


2022 ◽  
Vol 9 (1) ◽  
pp. 62-69
Author(s):  
Alvin John B Felipe ◽  
Jeoffrey Lloyd R Bareng

The study assessed the growth and yield of lettuce (Lactuca sativa L.) in order to evaluate the performance and economic feasibility of capillary wick irrigation system. Unlike any other capillary rise-based systems that uses the matric potential of the soil to dictate the amount of water to be drawn, this system aimed to continuously supply water imitating a full-time drip irrigation system but cheaper in terms of materials and operating cost. A 5 mm-width, cotton fabric strip was used as a wick material based from the results of the preliminary testing to verify several literature claims. In order to determine number of wicks to optimally supply the water demand of lettuce, treatments namely, T1= 1 wick, T2 = 2 wicks, T3 = 3 wicks and a control treatment T4 which uses manual irrigation method, were tested and compared against each other. Significant results were in terms of the volume of water applied, and the water use efficiency in which T1 showed a better performance among other treatments. However, it does not imply that T1 had produced a supreme yield output. Instead, this can be attributed to the efficient application of irrigation water to an optimal level. This means that T1 or the use of 1 wick material minimizes irrigation water losses through evaporation and percolation. An economic analysis was performed and has resulted to a return on investment of 41.92% or 41.92% of the investment cost will be returned after three cropping, which is an attribute of the particular set-up cost of the study.


2009 ◽  
Vol 14 (1) ◽  
pp. 69-84 ◽  
Author(s):  
Ijaz Hussain ◽  
Maqbool H. Sial ◽  
Zakir Hussain ◽  
Waqar Akram

This study is based on data from a cross sectional survey of 120 farms located along the Mithaluck irrigation canal in central Punjab. The data collected were analyzed using (i) the residual imputation method, and (ii) the change in net income method, and applied to a linear programming model to estimate the value productivity of irrigation water. Returns to irrigation varied by farm size and location on the canal, but were generally found to be very high relative to the estimated delivery cost of irrigation water. The results of this study could prove useful in determining the economic feasibility of various resources for supplementing water and improving delivery and application efficiencies.


2012 ◽  
Vol 65 (5) ◽  
pp. 898-906 ◽  
Author(s):  
María Molinos-Senante ◽  
Francesc Hernández-Sancho ◽  
Ramón Sala-Garrido

The concept of sustainability involves the integration of economic, environmental, and social aspects and this also applies in the field of wastewater treatment. Economic feasibility studies are a key tool for selecting the most appropriate option from a set of technological proposals. Moreover, these studies are needed to assess the viability of transferring new technologies from pilot-scale to full-scale. In traditional economic feasibility studies, the benefits that have no market price, such as environmental benefits, are not considered and are therefore underestimated. To overcome this limitation, we propose a new methodology to assess the economic viability of wastewater treatment technologies that considers internal and external impacts. The estimation of the costs is based on the use of cost functions. To quantify the environmental benefits from wastewater treatment, the distance function methodology is proposed to estimate the shadow price of each pollutant removed in the wastewater treatment. The application of this methodological approach by decision makers enables the calculation of the true costs and benefits associated with each alternative technology. The proposed methodology is presented as a useful tool to support decision making.


2018 ◽  
Vol 2 (3) ◽  
pp. 43-50
Author(s):  
Gloria Santana Parrales ◽  
Beatriz Irene Caballero Giler ◽  
Maria Shirlendy Guerrero Alcivar

The dam is a reservoir that stores about 450,000,000 cubic meters of water, has multiple purposes allowing flood control, produces irrigation water, for human consumption and shrimp farming in the area center of the province of Manabí. The first studies for the construction of the dam were carried out in the years 1970 to 1975 as a result of the hydrological/economic feasibility plan of the Province of Manabí, and of the integral hydro-agricultural area of the Carrizal Chone Basin. After several preliminary studies with different international firms and with changes of designs in 1992, the Dragados and Constructions SA Company was in charge of the construction of what is now the Manabí water project. It is located in the parish of Quiroga approximately 12 kilometers from the cantonal canton of Bolívar Canton, Calceta, with an extension of 2,500 hectares, with a construction area of 120 hectares and will allow irrigation of 17,000 hectares of the central area of Manabí. The objective of the work is to make an analysis of the construction of the La Esperanza dam. For this, the logical historical method was used, as well as the bibliography search to know the historical construction of the dam, as well as the observation method.


2020 ◽  
Vol 0 (2) ◽  
pp. 21-25
Author(s):  
Nikolay Dubenok ◽  
Andrey Novikov ◽  
Sergei Borodychev ◽  
Maria Lamskova

At the stage of water treatment for irrigation systems, the efficiency capture coarse and fine mechanical impurities, as well as oil products and organic compounds affects the reliability of the equipment of the irrigation network and the safety of energy exchange processes in irrigated agricultural landscapes. The violation of work irrigation system can cause disruptions in irrigation schedules of agricultural crops, crop shortages, degradation phenomena on the soil and ecological tension. For the combined irrigation system, a water treatment unit has been developed, representing a hydrocyclone apparatus with a pipe filter in the case. For the capacity of 250 m3/h the main geometrical dimensions of hydrocyclone have been calculated. To organize the capture petroleum products and organic compounds, it has been proposed a modernization of a hydrocyclone unit, consisting in dividing the cylindrical part of the apparatus into two section. The first is section is for input irrigation water, the second one is for additional drainage of clarified irrigation water after sorption purification by the filter, placed on the disk and installed coaxially with the drain pipe and the pipe filter.


2018 ◽  
Vol 2 (3) ◽  
pp. 206-219
Author(s):  
Louay Qais Abdullah ◽  
Duraid Faris Khayoun

The study focused basically on measuring the relationship between the material cost of the students benefits program and the benefits which are earned by it, which was distributed on college students in the initial stages (matinee) and to show the extent of the benefits accruing from the grant program compared to the material burdens which matched and the extent of success or failure of the experience and its effect from o scientific and side on the Iraqi student through these tough economic circumstances experienced by the country in general, and also trying to find ways of proposed increase or expansion of distribution in the future in the event of proven economic feasibility from the program. An data has been taking from the data fro the Department of Financial Affairs and the Department of Studies and Planning at the University of Diyala with taking an data representing an actual and minimized pattern and questionnaires to a sample of students from the Department of Life Sciences in the Faculty of Education of the University of Diyala on the level of success and failure of students in the first year of the grant and the year before for the purpose of distribution comparison. The importance of the study to measure the extent of interest earned in comparision whit the material which is expenseon the program of grant (grant of students) to assist the competent authorities to continue or not in the program of student grants for the coming years.


2020 ◽  
pp. 44-47
Author(s):  
A. A. Alekseev ◽  
A. E. Bobrovnikov ◽  
V. V. Bogdanov

In order to include innovative technologies in clinical recommendations, confirmation of their clinical effectiveness in comprehensive treatment of burned patients is necessary. 1,696 case histories of patients with burns were audited, which are divided into two groups depending on peculiarities of treatment. The use of innovative treatment technologies for burned patients has reduced the incidence of burn disease complications and mortality. Introduction of innovative technologies in treating burned patients into broad clinical practice improves results of provision of specialized, high-tech medical care for victims of burns.


2020 ◽  
Vol 96 (3) ◽  
pp. 384-398 ◽  
Author(s):  
Gi-Eu Lee ◽  
Kimberly Rollins ◽  
Loretta Singletary

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