Pond and Irrigation Model (PIM): a Tool for Simultaneously Evaluating Pond Water Availability and Crop Irrigation Demand

2018 ◽  
Vol 32 (9) ◽  
pp. 2969-2983 ◽  
Author(s):  
Ying Ouyang ◽  
Gary Feng ◽  
Theodor D. Leininger ◽  
John Read ◽  
Johnie N. Jenkins
Keyword(s):  
Water Availability ◽  
Pond Water ◽  
Irrigation Demand ◽  
Crop Irrigation

Assessing oxidation pond design criteria in a tropical town with low water availability

1996 ◽  
Vol 33 (7) ◽  
pp. 33-40 ◽  
Author(s):  
Marcelo A. Teixeira Pinto ◽  
Klaus D. Neder ◽  
Maurício L. Luduvice
Keyword(s):  
Removal Efficiency ◽  
Water Availability ◽  
Pond Water ◽  
Cod Removal ◽  
Oxidation Pond ◽  
Cod Removal Efficiency ◽  
Waste Stabilization ◽  
Reaction Constant ◽  
Current Design ◽  
Operational Data

The waste stabilization pond system of Brazlandia consists of two series of anaerobic and facultative ponds running in parallel. Due to the low water availability in the region and the growth of the population, the design conditions of hydraulic retention time and organic loading were strongly modified during the operational period. Assessing of nine years of operational data in comparison with the current design approaches showed that this situation has affected the anaerobic pond efficiency. However, despite what is found in the literature, the increase of anaerobic pond water temperature beyond 20°C was accompanied by decrease in COD removal efficiency. The longer retention times observed in the facultative ponds have favored the increase of algae concentration in the pond, which reduced the overall COD removal efficiency. However, when the filtered sample is taken into consideration, the values easily fit the empirical models proposed in the literature. No significant correlation was obtained between the complete mixing flow model and operational data, which suggests that the reaction constant K is not so constant. In addition to dependence on temperature, Kfilt. values showed a statistically significant correlation with applied COD load.

An environmental approach for the management and protextion of heavily irrigated regions

2013 ◽  
Vol 14 (3) ◽  
pp. 276-283
Keyword(s):  
Water Management ◽  
River Basin ◽  
Water Use ◽  
Water Footprint ◽  
Agricultural Policies ◽  
Irrigation Demand ◽  
Management Problems ◽  
Preliminary Study ◽  
Agricultural Regions ◽  
Crop Irrigation

In this paper the results of a preliminary study that investigates water footprint (WF) concept, as a useful tool to address water management problems in cultivated areas are presented. The two basic methodologies reported in the literature, their applicability, benefits and challenges were previously analyzed and evaluated by Tsoukala et al. (2011). A WF calculation for the crops of Messara valley in Crete is presented, so as to examine its contribution to achieving effective agricultural policies. Messara is one of the most important agricultural regions in Greece that faces serious problems in order to meet crop irrigation demand. The conclusions drawn from this analysis showed that WF can provide a transparent framework for the identification of potentially optimal alternatives for efficient water use at river basin catchment level.

New advanced designed systems to ensure safeguard of the territory and preservation of water resources for irrigation

2020 ◽  
pp. 1-19
Author(s):  
Cinalberto Bertozzi ◽  
Fabio Paglione
Keyword(s):  
Water Management ◽  
Water Resources ◽  
Drainage Basin ◽  
Land Reclamation ◽  
Land Area ◽  
Water Board ◽  
Management Schemes ◽  
Innovative Techniques ◽  
River Po ◽  
Crop Irrigation

The Burana Land-Reclamation Board is an interregional water board operating in three regions and five provinces. The Burana Land-Reclamation Board operates over a land area of about 250,000 hectares between the Rivers Secchia, Panaro and Samoggia, which forms the drainage basin of the River Panaroand part of the Burana-Po di Volano, from the Tuscan-Emilian Apennines to the River Po. Its main tasks are the conservation and safeguarding of the territory, with particular attention to water resources and how they are used, ensuring rainwater drainage from urban centres, avoiding flooding but ensuringwater supply for crop irrigation in the summer to combat drought. Since the last century the Burana Land-Reclamation Board has been using innovative techniques in the planning of water management schemes designed to achieve the above aims, improving the management of water resources while keeping a constant eye on protection of the environment.

Investigation of Some Water Quality Parameters of Pond Water under Mymensingh Municipality

2015 ◽  
Vol 8 (1) ◽  
pp. 85-89
Author(s):  
F Zannat ◽  
MA Ali ◽  
MA Sattar
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Chemical Properties ◽  
Pond Water ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Urban Region ◽  
Mn Toxicity ◽  
Ph Values ◽  
Drinking Water Standard

A study was conducted to evaluate the water quality parameters of pond water at Mymensingh Urban region. The water samples were collected from 30 ponds located at Mymensingh Urban Region during August to October 2010. The chemical analyses of water samples included pH, EC, Na, K, Ca, S, Mn and As were done by standard methods. The chemical properties in pond water were found pH 6.68 to 7.14, EC 227 to 700 ?Scm-1, Na 15.57 to 36.00 ppm, K 3.83 to 16.16 ppm, Ca 2.01 to 7.29 ppm, S 1.61 to 4.67 ppm, Mn 0.33 to 0.684 ppm and As 0.0011 to 0.0059 ppm. The pH values of water samples revealed that water samples were acidic to slightly alkaline in nature. The EC value revealed that water samples were medium salinity except one sample and also good for irrigation. According to drinking water standard Mn toxicity was detected in pond water. Considering Na, Ca and S ions pond water was safe for irrigation and aquaculture. In case of K ion, all the samples were suitable for irrigation but unsuitable for aquaculture.J. Environ. Sci. & Natural Resources, 8(1): 85-89 2015

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