scholarly journals Effects of wastewater irrigation on groundwater quality – An overview

2021 ◽  
pp. 100322
Author(s):  
Abrahan Mora ◽  
Juan Antonio Torres-Martínez ◽  
Mariana V. Capparelli ◽  
Andrith Zabala ◽  
Jürgen Mahlknecht
Keyword(s):  
Groundwater Quality ◽  
Wastewater Irrigation

scholarly journals Identification of the Hydrogeochemical Processes and Assessment of Groundwater Quality, Using Multivariate Statistical Approaches and Water Quality Index in a Wastewater Irrigated Region

Water ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1702 ◽  
Author(s):  
Ana Elizabeth Marín Celestino ◽  
José Alfredo Ramos Leal ◽  
Diego Armando Martínez Cruz ◽  
José Tuxpan Vargas ◽  
Josue De Lara Bashulto ◽  
...  
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Wastewater Irrigation ◽  
Hydrogeochemical Processes ◽  
Semiarid Region ◽  
Drinking Purposes ◽  
The Impact ◽  
Cluster 2

Groundwater quality and availability are essential for human consumption and social and economic activities in arid and semiarid regions. Many developing countries use wastewater for irrigation, which has in most cases led to groundwater pollution. The Mezquital Valley, a semiarid region in central Mexico, is the largest agricultural irrigation region in the world, and it has relied on wastewater from Mexico City for over 100 years. Limited research has been conducted on the impact of irrigation practices on groundwater quality on the Mezquital Valley. In this study, 31 drinking water wells were sampled. Groundwater quality was determined using the water quality index (WQI) for drinking purposes. The hydrogeochemical process and the spatial variability of groundwater quality were analyzed using principal component analysis (PCA) and K-means clustering multivariate geostatistical tools. This study highlights the value of combining various approaches, such as multivariate geostatistical methods and WQI, for the identification of hydrogeochemical processes in the evolution of groundwater in a wastewater irrigated region. The PCA results revealed that salinization and pollution (wastewater irrigation and fertilizers) followed by geogenic sources (dissolution of carbonates) have a significant effect on groundwater quality. Groundwater quality evolution was grouped into cluster 1 and cluster 2, which were classified as unsuitable (low quality) and suitable (acceptable quality) for drinking purposes, respectively. Cluster 1 is located in wastewater irrigated zones, urban areas, and the surroundings of the Tula River. Cluster 2 locations are found in recharge zones, rural settlements, and seasonal agricultural fields. The results of this study strongly suggest that water management strategies that include a groundwater monitoring plan, as well as research-based wastewater irrigation regulations, in the Mezquital Valley are warranted.

Effect of Wastewater Treated by EM Reused for Irrigation on Shallow Groundwater Quality

2013 ◽  
Vol 409-410 ◽  
pp. 318-324 ◽  
Author(s):  
Chao Yin ◽  
Xiao Hou Shao ◽  
Xiao Wei Zhang ◽  
Liang Ren ◽  
Ting Ting Chang ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Environmental Pollution ◽  
Groundwater Pollution ◽  
Shallow Groundwater ◽  
Wastewater Irrigation ◽  
Irrigation Amount

In allusion to environmental pollution brought about by wastewater irrigation, EM technology was introduced to study the feasibility of EM application in wastewater irrigation. The results show that EC, NO3--N and TN value of EM treatment in shallow groundwater are all less than those of WW treatment as a whole. In all samples, 59.3% NO3--N values are in the alert status, and when irrigation amount reaches 360mm, treatment WW has caused shallow groundwater pollution. TN concentration in treatment WW-3 on June 27 and July 9 is more than 110 mg/L. It suggests that NO3--N can easily penetrate into shallow groundwater with wastewater irrigation and there is insurance of groundwater pollution in the long-term wastewater irrigation. It also indicates that application of wastewater treated by EM reused for irrigation is feasible. TP values are all very low and suggest the pollution of P does not happen.

The effects of wastewater irrigation on groundwater quality in Mexico

1999 ◽  
Vol 40 (2) ◽  
pp. 45-52 ◽  
Author(s):  
E. Gallegos ◽  
A. Warren ◽  
E. Robles ◽  
E. Campoy ◽  
A. Calderon ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Negative Impact ◽  
Irrigation Management ◽  
Wastewater Irrigation ◽  
Wet Season ◽  
Standard Methods ◽  
Physico Chemical ◽  
Groundwater Samples ◽  
Microbiological Parameters ◽  
Faecal Bacteria

The main aim of this research was to determine the environmental effects of wastewater irrigation on the subsurface at two locations in Mexico; Leon and the Mezquital Valley. Freshly-drilled subsurface sediment samples (both sites) and groundwater samples (Mezquital Valley) were taken at various depths. These were analysed for a range of physico-chemical and microbiological parameters using standard methods. Elevated concentrations of faecal and total coliforms were recorded at both sites indicating that faecal bacteria had been transported through the subsurface. The level of subsurface contamination was affected by both spatial and temporal factors with higher coliform concentrations occurring at shallower depths (<10 m below the surface) and at the top of the water table, and during the wet season. Elevated nitrate concentrations were found in all of the Mezquital Valley groundwaters. Thus, wastewater irrigation appears to have had a negative impact on groundwater quality. In order to mitigate this, treatment of wastewater prior to irrigation and careful irrigation management is recommended. The potential effects of groundwater degradation on public health, and the need for guidelines to protect groundwater quality, are discussed.

Modelling herbicide treatment impact on groundwater quality in a central Italy area

Agronomie ◽  
2001 ◽  
Vol 21 (3) ◽  
pp. 267-276
Author(s):  
Daniela Businelli ◽  
Enrico Tombesi ◽  
Marco Trevisan
Keyword(s):  
Groundwater Quality ◽  
Central Italy ◽  
Herbicide Treatment

Physico-Chemical Assessment of Groundwater Quality of Ahmednagar Industrial Area

2011 ◽  
Vol 4 (4) ◽  
pp. 228-230
Author(s):  
Patil S.S Patil S.S ◽  
◽  
Gandhe H.D Gandhe H.D ◽  
Ghorade I.B Ghorade I.B
Keyword(s):  
Groundwater Quality ◽  
Industrial Area ◽  
Physico Chemical ◽  
Chemical Assessment

GEOPHYSICAL AND WATER QUALITY INDEX SURVEYS OF GROUNDWATER QUALITY AROUND UGBOR DUMPSITE IN BENIN CITY, EDO STATE, NIGERIA, WEST AFRICA.

2016 ◽  
Vol 12 (3) ◽  
pp. 4383-4393
Author(s):  
Osabuohien Idehen
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Dry Season ◽  
Depth Range ◽  
Benin City ◽  
Physico Chemical ◽  
Vertical Electric Sounding ◽  
Geoelectric Layer

This study takes a look into groundwater quality at Ugbor Dumpsite area using water quality index (WQI), 2-Dimensional (2-D) geophysical resistivity tomography and vertical electric sounding (VES).The geophysical resistivity methods employed revealed the depth to aquifer, the geoelectric layers being made up of lateritic topsoil, clayed sand and sand. Along the trasverse line in the third geoelectric layer of lateral distance of 76 m to 100 m is a very low resistivity of 0.9 to 13 m from a depth range o f about 3 to 25 m beneath the surface- indicating contamination. Water samples were collected and analyzed at the same site during the raining season and during the dry season. The value of water quality index during the raining season was 115.92 and during the dry season was 147.43. Since values at both seasons were more than 100, it implies that the water is contaminated to some extent and therefore poor for drinking purpose. The Water Quality Index was established from important analyses of biological and physico-chemical parameters with significant health importance. These values computed for dumpsite area at Ugbor were mostly contributed by the seasonal variations in the concentrations of some parameters, such as, conductivity, total dissolved solids, hardness, alkalinity, chlorides, nitrates, calcium,  phosphates, zinc, which showed significant differences (P<0.01 and P<0.05) in seasonal variation.

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