Wastewater effluents containing phosphorus and nitrogen are major contributors to a variety of water pollution.The present study is therefore aimed at investigating the phosphate and nitrate removal efficiency of three wastewater protozoa(Aspidisca, Trachelophyllum and Peranema) in a laboratory-scale water treatment ...
Majority of the population of Sri Lanka does not have modern pipe-born water system especially in rural areas.They depend entirely on deep hand pump tube wells and shallow dug wells for their domestic water requirements.Most of the shallow dug wells in the dry zone of Sri Lanka go dry during the dry period. So constr...
The world yours,as well as ours,but in the last analysis,it is yours.You young people,full of vigor and vitality,are in the bloom of life,like the sun at eight or nine in the morning.Our hope is placed on you.
本刊收录了2009年"第一届世界青年地球科学家(YES)大会"论文摘要526篇,作者来自于全世界60多个国家。本次会议获得了联合国教科文组织(UNESCO)、国际地球年(IYPE)、国际地科联(IUGS)等国际组织的大力支持,主题涉及地下水、气候变化、能源、固体矿产、深部地球等国际地球科学领域研究的最新动态、新发现和新的研究成果。适合于地球科学、生命科学...
Ground waters in the Ngorongoro Crater,Tanzania, home to thousands of large mammals and a World Heritage Site,is controlled by the volcanic host rock lithology,evaporative concentration,mineral precipitation and re-dissolution,and biological factors.There are evaporative concentration and biological activity in swamp...
If you drill a hole into the ground,in most places its bottom fills with water after a few days.The water appears even if no rain falls and no streams flow nearby.The water that seeps into the hole is part of the vast reservoir of subterranean ground water that saturates the Earth’s crust in a zone between a few met...
The study of satellite images of 2001,1999,1997 and topo-sheet of 1975 indicate a widened channel of Nilarevu at its mouth and an erosional shoreline on the northern bank.The spit on the southern side has grown and added another curved spit to its distal end.The beach ridges are aligned with the curved spit.The accre...
High arsenic groundwater is widely distributed at Datong Basin and Hetao Plain,northern China.To investigate the effects of microbial activities on arsenic mobilization in the two high arsenic regions,the microcosm experiments were performed under various conditions of two bacterial strains(XZM001 and YH001,isolated ...
A multidisciplinary approach was applied to a detailed study of groundwater contamination by a Chemical Complex(CQE),near a coastal lagoon—an important wetland locally known as"Ria de Aveiro"(NW Portugal).The study includes 3D lithostratigraphic modeling,the estimate of groundwater recharge using different methods,a...
Artificial groundwater recharge is a promising technology to address the threat to water supply posed by climate change.An artificial groundwater recharge project,which directs water from seasonal flash flooding into a volcanic aquifer,is being conducted in
Drinking water supply for the Main Ethiopian Rift (MER) area principally relies on groundwater wells and springs and is characterized by fluoride contamination. New analyses reveal that the F~- geochemical anomaly is associated with other potentially toxic elements such as As,B,Mo,U,Al,Fe and Mn. Particularly,35%of t...
This study falls within the framework of a partnership project between Lyonnaise des Eaux de Casablanca (LYDEC) and HassanⅡUniversity in Casablanca.It’s overall objective is to evaluate the organoleptic quality of water feeding the great Wilaya of Casablanca.The project has set specific targets based on monitoring ...
Integrated geological,geochemical and geophysical investigations have been carried out for the groundwater management in Tellapur Urban node, Greater Hyderbad,India.The watershed covering an area of 10 km~2,a part of Nakkavagu catchment in the Manjira River sub-basin,which is a tributary of Godavari River.Electrical ...
Research has shown that groundwater plays a very great role in Malawi.It has been revealed that many people who live in rural areas in Malawi depend on groundwater for drinking and other domestic uses. According to research which was conducted in Malawi using focus group discussion,observations and other data sources...
There are a variety of scientific techniques useful to know the subsurface resistivity in order to estimate the saline water intrusion effect during tsunami.The electrical resistivity methods involve the measurement of the apparent resistivity of the soil and rock as a function of depth(vertical resistivity sounding)...
The mineral(hydrogen sulfide) groundwater deposit is situated to the west of the city Riga(the capital of Latvia),and near the coast Gulf of Riga. There is a big health resort(spa) for the recovery of patients.The deposit Kemeri appertains to the Baltic artesian basin.There is an aquifer system with 7 layers,among th...
The impact of population pressure has been observed on several systems,groundwater resource is one among them.Mismanagement and over-exploitation has not only caused the decline of groundwater levels but also causes deterioration in water quality. Fluoride is one of such parameters where impact of over exploitation h...
Groundwater is a valuable resource in the semiarid Ordos Plateau where abundant natural resources,such as coal,natural gas and halite,are present.With the development of the resources,groundwater demand increases dramatically.Origin identification and recharge estimates of groundwater are significant parts of the sus...
The basic evolution rules and formation mechanism of groundwater chemicals in the northem Cretaceous Basin of Ordos are found out,on the basis of the analysis of hydrochemicals,Sr,S isotopes in precipitation, groundwater and surface water.In general, the hydrochemical and isotopic characters of groundwater in shallow...
Hydrologic process,turbidity,suspended particles matters(SPM),major cations and TOC concentrations during two storm events in late April 2008 were monitored at Jiangjia Spring which is the outlet of Qingmuguan underground river system.Scanning electron microscopy(SEM) and energy disperse spectroscopy(EDS) analyses of...
An intensive monthly sampling of Madhuana drain at three points and hand pumps from four sites over 12 months covering summer and winter seasons at industrial city of Faisalabad was conducted during August 2000 to July 2001.Water quality parameters (EC,SAR and RSC) and heavy metal(Cd,Cr,Pb,Ni, Cu,Zn and Mn) pollutant...
Groundwater occurs as a thin lens of freshwater floating over seawater in small islands aquifers.The impacts of climate change and pressure on island resources have been the greatest threats faced by the small islands.This paper represents a case study of groundwater response towards the climate change and pressure o...
Electrical resistivity survey was carried out as part of an integrated study of a portion of Federal University of Technology Akure,Campus,South-- western Nigeria—a Basement terrain,to unravel the rock types;delineate structural elements such as fractures and determine the ground water zones which could be pin-point...
Geophysical experiments have the ability to provide minimally invasive,nearly continuous,and spatially extensive estimates of material properties for near-surface investigations.The Time Lapse Electrical Resistivity Tomography(TLERT) was used to image and estimate the electrical properties of a small watershed in Sou...
Information on three-dimensional subsurface temperature distribution and its change were examined by measuring of temperature-depth profiles at observation wells in 2001-2002 and 2005-2006,to evaluate the subsurface thermal environment in and around the Tokyo Area.Regional variation was observed as follows:low temper...
The quality of groundwater resources needs to be assessed and monitored to ensure sustainable use and management.Groundwater-related data are characterized by inaccurate,missing values and significant uncertainties;whose sources range from inadequacies and errors in the measuring techniques to insufficient sampling t...
Heterogeneity of permeability in fractured media is a hot research topic in hydrogeology and numerous approaches had been proposed to characterize heterogeneity in the past several decades.However,little
The project"Groundwater Investigation in the Cuvelai-Etosha Basin"was a 3 year project in the framework of the German-Namibian Technical Cooperation,concluded between the Republic of Namibia and the Federal Republic of Germany.The study is conducted by the Department of Water Affairs and Forestry(DWAF) and the Federa...
The chemistry of subsurface water bodies is difficult to understand unless precipitation chemistry and atmospheric processes are taken into consideration. Limited pioneer work has been carried out on considering precipitation chemistry.Polluted zone delineation is very much significant before the planning for any of ...
On December 26,2004,the Indian Ocean tsunami waves hit Sri Lanka resulting in the devastation of the coastal aquifers from saltwater contamination.In an attempt to speed up the cleaning process of the contaminated water in wells,large-scale and intensive campaigns went into cleaning and rehabilitating wells through p...
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