Study Finds Potential In Brackish Groundwater Desalination

A new analysis suggests there’s an outsized untapped resource for several of the progressively water-limited regions of the U.S. and around the world: salt groundwater, which, in theory, a minimum of, would need a lot of less energy to desalinize than brine.

The quantity of salt groundwater within u.  s. is regarding 800 times bigger than the overall amount of groundwater withdrawn nationwide for all uses, consistent with a U.S. Geologic Survey study. So, exploitation even a fraction of that resource might dramatically improve the prospects for water-starved communities, particularly as potable water becomes additional scarce, as temperature change models predict. whereas a couple of fifth of the nation’s water comes from recent groundwater, under one p.c presently comes from salt groundwater. [1]

Anomaly Detection and Reliability Analysis of Groundwater by Crude Monte Carlo and Importance Sampling Approaches

In this paper, Crude Monte Carlo methodology and importance sampling are used to see the reliableness of long changes information. moreover, totally different knowledge analysis strategies are accustomed verify the abnormal patterns and to research the reason for spatial variations of failure likelihood. For this purpose, 3 strategies together with sturdy variance, one-class SVM, and Isolation Forest are applied to outline the choice perform. within the preliminary detection of the outliers, DFFITS and COOK measure are accustomed to making sure the existence of abnormal plains in a very two-dimensional area. [2]

Automated time‐series measurement of microbial concentrations in groundwater‐derived water supplies

Fecal contamination by human and animal pathogens, together with viruses, bacteria, and protozoa, may be a potential human jeopardy, particularly with regards to potable. microorganism incidence in groundwater varies significantly in-house and time, which may be troublesome to characterize as sampling generally needs many liters of water to be versed a filter. Here we have a tendency to describe the planning and preparation of an automatic sampler fitted to hydrogeological and with chemicals dynamic groundwater systems. Our style targeted on a compact type to facilitate transport and fast preparation to municipal and domestic water provides. [3]

Assessing the applicability of groundwater monitoring data in the modeling of soil water retention characteristics

The present work focuses on associate degree assessment of the relevance of the groundwater table (GWT) measures within the modeling of soil water retention characteristics (SWRC) victimization artificial neural network (ANN) strategies. Model development, testing, validation, and verification were performed using data collected across two decades from soil profiles at full‐scale research objects located in Southwest Poland. A positive result was ascertained between the initial GWT position knowledge and therefore the accuracy of soil water reserve estimation. On the opposite hand, no vital effects were ascertained following the implementation of GWT fluctuation knowledge over the whole season. [4]

Assessing Groundwater Vulnerability to the Activities of Artisanal Refining in Bolo and Environs, Ogu/Bolo Local Government Area of Rivers State; Nigeria

Artisanal refinement usually involves primitive extrajudicial stills during which rock oil is stewed and therefore the resultant fumes area unit collected, cooled and condensed in tanks to be used regionally for lighting, energy or transport. The distilleries area unit heated on open fires fed by rock oil that’s tipped into pits within the ground. As a part of the oil burns away, some seeps into the bottom. The waste from the method is held on in open pits thereby increasing the chance of the contamination of the surroundings and presumably impacting the underground geological formation. it’s this concern of rock oil oozing to the groundwater that necessitated the present investigation with the only real objective of assessing the vulnerability of the geological formation to the activities of artisanal refinement. Soil, water and rock oil samples from artisanal refinement sites were collected consistent with commonplace procedures and transferred to the laboratory for analyses to see their properties. the associate empirical technique was adopted in estimating the porosity. The Kozeny – Carman equation for deriving the coefficient of permeability takes the porosity (η) into account. Using a typical soil porosity η = 0.4, mean particle size = zero.05 and mean consistency determined from crude samples porosity estimate was calculated to be three.6 x 10-8cm/s, infiltration was assessed employing a simplified version of Darcy’s law. [5]

Reference

[1] Study Finds Potential In Brackish Groundwater Desalination

July 5, 2018 (web link)

[2] Anomaly Detection and Reliability Analysis of Groundwater by Crude Monte Carlo and Importance Sampling Approaches

Azimi S, Moghaddam MA, Monfared SA. Anomaly Detection and Reliability Analysis of Groundwater by Crude Monte Carlo and Importance Sampling Approaches. Water Resources Management. 2018:1-21. (web link)

[3] Automated time‐series measurement of microbial concentrations in groundwater‐derived water supplies

Owens DW, Hunt RJ, Firnstahl AD, Muldoon MA, Borchardt MA. Automated time‐series measurement of microbial concentrations in groundwater‐derived water supplies. Groundwater. (web link)

[4] Assessing the applicability of groundwater monitoring data in the modeling of soil water retention characteristics

Orzepowski W, Paruch AM, Kowalczyk T, Pokładek R, Pulikowski K. Assessing the applicability of groundwater monitoring data in the modeling of soil water retention characteristics. Water and Environment Journal. (web link)

[5] Assessing Groundwater Vulnerability to the Activities of Artisanal Refining in Bolo and Environs, Ogu/Bolo Local Government Area of Rivers State; Nigeria

Gordon T. Amangabara1* and John D. Njoku1

1Department of Environmental Technology, School of Environmental Technology, Federal University of Technology, PMB 1526 Owerri, Nigeria. (web link)

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