Regional applicability and potential of salt-gradient solar ponds in the United States. Volume 1: Executive summary

Findings of a survey concerning salt ponds are summarized. The residential, commercial, and institutional buildings sector is discussed. The industrial process heat sector is considered. The agricultural process heat sector is examined. The electrical power sector is reviewed. The desalinization sector is considered

Water Stress And Water Wars

This essay argues three propositions: (1) by 2025 roughly one third of the world\u27s population will be living in countries which are water-stressed, at least by conventional criteria; (2) nevertheless, macro evidence does not portend that the world will be unable to feed its growing population at that time; (3) interstate armed conflicts over water, which were not very important in the last quarter of the twentieth century, seem unlikely to become more intense in the coming decades, especially since most countries have not utilized the enormous possibilities for saving scarce water

Water and the Treaty of Peace between Israel and Jordan

The Treaty of Peace between the State of Israel and the Hashemite Kingdom of Jordan was signed at the southern border crossing of Wadi Araba on October 26, 1994. It symbolized one of the world’s most famous water – sharing agreements – in addition to making Jordan the only Arab country after Egypt to normalize relations with Israel. The Jordanian – Israeli Peace Treaty is part of the efforts towards joint management of water resources

Iron Ore Dephosphorization of Gara Djebilet Deposit By Hydrometallurgical Method

For industrial use, iron-ore concentrates shall correspond to definite requirements regarding both basic substance content – iron as well as phosphorus content. Decreased phosphorus content in iron-ore concentrate can be received by the method of hydrometallurgy (desalinization of phosphorus by mineral acid). On theexperimental base of OJSC VNIIMT, a laboratory research was carried out regarding iron ore dephosphorization; as a result maximum possible content of phosphorus was obtained in a final product. The optimal technological parameters of sulphuric acid desalinization were defined that have an effect on quality of phosphorus removal of iron ore magnetite concentrate: size degradation of roasted concentrate; phosphorus removal duration; pulp heating temperature effect; sulphuric acid-specific consumption. Keywords: desalinization, iron ore, concentrate, pulp, sulphuric acid, phosphorus content, optimal parameter

ENVIRONMENT ASSESSMENT AND MODELLING OF SALTS TRANSFER IN FOUR LAND RESTORATION SCHEMES IN THE COAL MINING REGION

The mining district where the Western Donbas coal mines are emplaced has accumulated wastes in the form of tailings, heaps, dumps, and slurry deposits. Meantime, only small part of the waste from these sites is “recycled” in other areas such as road filling, dams and embankments construction. The environmental impact of these materials remains little-studied. The toxic salts mobility as a result of weathering processes has not been estimated and no data exist concerning the transfer of toxicants migration

Transformation of salt-affected soils and their vegetation in Hungary as a result of human influences on soils and landscapes

Although most of Hungarian lowland landscapes show a flat geomorphology a very high diversity of soils developed. The most important reason of this diversity is the everywhere presence of small elevation differences due to controlling runoff and groundwater levels. In local level (southern Hortobágy) the typical elevation for developing accumulation horizons (86,5-87 meter above sea level), their intensity (ESP up to more than 70 %) and vertical position in profiles (closer than 50 cm to the surface) were established. With deviation (in both directions) from this surface level decreased the intense, and increased the vertical position of accumulation horizons. In the study area also strict human control on groundwater level was found, which could shift the accumulation horizons vertically. The process could reorganize of soil pattern also horizontally, also in larger scale