ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1974.tb02993.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

ABSTRACTIn recent years, the practice of artificially recharging wastewater such as storm runoff, sewage effluent, and various industrial wastes into the subsurface has become of growing importance in Hawaii. In 1970 the Kahului Development Company began construction of a collection basin and four deep injection wells for the disposal of storm runoff from a residential development in Kahului, Maui. This presented a unique opportunity to evaluate the response of a basaltic Ghyben‐Herzberg aquifer to well injection, and to measure the rate of movement of injected water in the aquifer. The results of pumping and injection tests of one completed well and one test hole indicate that the finished injection wells should be able to transmit sediment‐free water at rates in excess of 5500 gallons per minute per well. Observation well measurements indicate that injected water moves at a gross velocity of one foot per minute in the basalt aquifer in the vicinity of the injection we

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1974.tb02994.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

ABSTRACTMany tube wells drilled for irrigation use fail prematurely because of poor well design, improper sized and placed gravel‐pack material, and ineffective slotted‐pipe screens. Well and gravel‐pack design criteria and an improved slotted‐pipe screen described in this paper offer promise of drastically reducing such failures. Properly designed tube wells equipped with this type of screen should have more than double the safe‐yield and service‐life capability of most irrigation tube wells now in use.In some countries large‐diameter, low‐capacity open wells always have been used to obtain irrigation water. Now, small‐diameter, high‐capacity tube wells are being constructed in the same aquifers. As extensive tube‐well development occurs, the water table will drop, drying up many shallow open wells. In such instances, those who can afford the deeper, more expensive tube wells could gain almost exclusive use of the aquifer.Optimum development of surficial aquifers using both tube and open wells may have to be rigidly controlled to assure every farmer a fair share of available water. Such controls should be based on the potential safe yield capability of aquifers. A graphical procedure used in Illinois to obtain an estimate of this value for planning and initial development purposes is pr

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1974.tb02995.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

ABSTRACTAs water travels along the path of the hydrologic cycle, it changes from pure salt‐free water suspended in the troposphere to ocean brines. Along the way, it progressively picks up salts in the atmosphere, on the earth's surface, through the soil medium and the unsaturated zone, and the saturated zone. Percolation of waste discharges and recycling of ground water through man's use add other complex factors. The process is indeed a water quality cycle. Thus, although water may be abundant, it may not all be fit for use. Understanding of the intricate processes that cause the change in the chemical composition of water is necessary to implement sound water quality management.(KEY TERMS: evapotranspiration; concentration; solution of minerals; carbon dioxide; ion exchange; biochemical reactions; dynamic cycle

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1974.tb02996.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

ABSTRACTA mathematical model was developed and used to simulate the stream‐aquifer system in the Arkansas River valley in southeastern Colorado, from Pueblo to the Colorado‐Kansas State line. The model simulates the interrelations among ground water and surface water including reservoirs, losses, and transmountain diversions, utilizing various water‐distribution rules. The model was used to analyze 24 water‐management plans designed to reduce shortages in the irrigation supply. One management plan simulated salvage of water from phreatophyte evapotranspiration, different reservoir operation regulations, use of imported ground and surface water, a new reservoir, additional ground‐water use, and application of excess streamflow. The resulting annual dependable supply was increased from 610,000 acre‐feet to 870,000 acre‐feet in relation to an annual demand of 1,100,000 acre‐feet. The model can be used as a tool to analyze other water

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1974.tb02997.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

Abstract. Prince George, B.C. required 15 mgd additional municipal water supply. A cost comparison led to the selection of the Nechako Aquifer ground‐water supply instead of the Nechako River surface‐water supply. A Fehlmann horizontal collector, consisting of a 16‐inch diameter reinforced concrete caisson, 100 feet deep, with 1788 feet of 8‐inch diameter polystyrene screen, projecting spoke‐like at the bottom of the caisson, was installed. On test, the collector produced 15.3 mgd of clean, excellent quality water, with 6.7 feet drawdown under equilibrium c

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1974.tb02998.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1974.tb02999.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1974.tb03000.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1974.tb03001.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY