By Yongxin Xu, Brent Usher

In 2000, a variety of UN corporations introduced a collaborative attempt to evaluate the vulnerability of groundwater in different African towns. The venture addressed the difficulty of aquifer vulnerability and the security of groundwater caliber. This ebook is a set of thirty peer-reviewed papers at the subject, and gives a glimpse of the placement around the continent. The booklet starts with a vast review of the location in Africa, highlighting subject matters of specified value to the continent and featuring a number of kingdom views. the following papers supply particular case reviews, introducing a variety of diversified hydrogeological settings, with linked pollutants assets, their explanations and results. Methodologies for realizing affects and for making improvements to the location are thought of, in order to the demanding situations forward. The e-book will offer priceless reference and perception to execs and decision-makers faced with a large range of demanding situations, together with groundwater caliber administration in components of quick urbanisation in Africa and different constructing components.

Show description

Read Online or Download Groundwater Pollution in Africa (Balkema: Proceedings and Monographs in Engineering, Water and Earth Sciences) PDF

Similar water quality & treatment books

Read e-book online Disinfection Byproducts in Drinking Water: Formation, PDF

The EPA has demonstrated rules which classify 4 sorts of disinfection byproducts - TTHMs, haloacetic acids, bromate, and chlorite - and calls for public water structures restrict those byproducts to precise degrees. lots of the info required to conform with those criteria is both scattered through the literature or derived from meetings or symposiums.

Download e-book for iPad: Flow and sediment transport in compound channels: the by S. Ikeda, I.K. McEwan

This monograph presents a complete state of the art description of the paintings conducted within the united kingdom and Japan on "Flow and Sediment delivery in Compound Channels". It for this reason describes examine which has been carried out, essentially during the last twenty years, and which has yielded a reasonably designated photo of the real behaviours of compound channels and produced a few engineering prediction equipment which should be extensively followed in perform.

Get Drinking Water Security for Engineers, Planners, and PDF

Concise and readable, ingesting Water safety for Engineers, Planners and executives offers an outline of concerns together with infrastructure making plans, making plans to judge vulnerabilities and power threats, capital development making plans, and upkeep and threat administration. This publication additionally covers issues relating to capability contaminants, on hand water defense applied sciences, analytical equipment, and sensor applied sciences and networks.

Extra resources for Groundwater Pollution in Africa (Balkema: Proceedings and Monographs in Engineering, Water and Earth Sciences)

Sample text

This depends on the density of septic tanks and the population in a given area. 6 km2 is considered as having significant contamination potential at discharge rates of 170 L/person per day (Canter & Knox, 1985). The design, construction, and maintenance are important. For example, the systems should be cleaned every three years. The effluent quality and the efficiency of constituent removal depend on the underlying soil and the thickness of the unsaturated aerobic soil below the leach field. , 1979).

Cogho (1991) found nitrate concentrations in groundwater exceeding 30 mg/L near feedlots in the northern Free State Province. One major environmental impact of intensive animal husbandry is the large quantity of animal waste that is produced within a limited area. Waste management at such locations is, therefore, of concern. Conrad et al. (1999) selected three study sites with this in mind: a dairy and piggery farm, a dairy, and a feedlot. The first two sites are located in the winter rainfall area, and the feedlot in the summer rainfall area.

The final blended water used for town supply is slightly saline, with the electrical conductivity in the order of 200 mS/m. 4 (Tredoux, 2004). A comparison of these results with earlier analytical data indicates that the water quality varies to some extent. This is often the case in such shallow, unconfined aquifers. Overall, the nitrate values have increased. The relatively high ␦15N values at Marydale are at levels that are characteristic for faecal pollution. Although sheep are grazing in the river catchment, it was considered unlikely that the groundwater was polluted.

Download PDF sample

Groundwater Pollution in Africa (Balkema: Proceedings and Monographs in Engineering, Water and Earth Sciences) by Yongxin Xu, Brent Usher


by David
4.5

Rated 4.00 of 5 – based on 47 votes