Drainage of Irrigated Land (WATER - LOGGING AND SALINITY CONTROL, DRAINAGE WATER DISPOSAL AND RESUSE.)

2013 ◽  
Author(s):  
Mr. Abdullah k. Khamis
2016 ◽  
Vol 27 (1) ◽  
pp. 63-73
Author(s):  
Rowshon Shad Fardushe ◽  
Md Mahbubul Hoque ◽  
Shimul Roy

From the field observation it is apparent that the color of coal leached drainage water and the agricultural land water are blackish and slightly blackish respectively, which pollutes surface water and the agricultural land. The study showed the present status of the water quality through analyzing different parameters including color, temperature, pH, EC, DO, TDS, BOD, COD, Cl-, Cu, Zn and Fe as well as the status of soil quality where pH, OC, PO4 -, Cu, Cr and Zn were analyzed. All the water quality parameters (e.g. temperature, pH, EC, TDS, DO, and BOD) were within normal levels but the value of COD was higher, which affects the aquatic environment. The concentration of heavy metals in water varied with Zn > Cu > Cr and in soil the concentration varied with Cu > Cr > Zn.Bangladesh J. Sci. Res. 27(1): 63-73, June-2014


1984 ◽  
Vol 16 (5-7) ◽  
pp. 41-55 ◽  
Author(s):  
J F Robson ◽  
R F Stoner ◽  
J H Perry

In this paper the problems associated with the drainage of irrigated alluvial plains are discussed with particular reference to the disposal of saline drainage water. The drainage problems within two specific regions are outlined, the Tigris-Euphrates plain in Iraq and the lower Indus plain in Pakistan. For both regions details are given of present and future drainage water disposal methods.


Author(s):  
K. K. Аnuarbekov ◽  
E. T. Kaipbayev ◽  
G. Mengdibayeva

The significant impact of irrigation on the natural and ecological situation in the zone of irrigated agriculture in Kazakhstan was determined by the concept of irrigation development in Central Asia and Kazakhstan. The problem of reducing the existing environmental conditions on the irrigated lands of Kazakhstan, especially in the Southern and South-Eastern regions, and the normalization of the ecological and meliorative situation are directly related to various water management regions of Kyrgyzstan and Uzbekistan. The Syrdarya river, which flows among these countries, comes to us with a water salinity of 1,75 g/l. They are also contaminated with pesticides, organochlorine pesticides – DDT (dichlorodiphenyltrichloroethane) and HCH (hexachlorocyclohexane), used on irrigated land. Water salinity is also increasing in the territories of Kazakhstan. In general, on irrigated lands, as a result of salt intake from irrigation waters, there was an increase in salt reserves in soils and ground waters. Their intensity largely depends on the salinity of irrigation water and the volume of water intake. As a result of regulating the flow of the river. An irreversible soil-ecological process is taking place in the Syrdarya with great intensity, where the development of irrigated land and the volume of CDW (collector-drainage water) and wastewater discharged into the rivers in the upper reaches of the rivers has been widely developed.


2020 ◽  
Vol 24 (1) ◽  
pp. 30-33
Author(s):  
K.V. Letuyev ◽  
S.V. Kovshov ◽  
E.B. Gridina

The experience of the Arshanovsky coal pit in solving the problem of rational water disposal is presented. A wastewater and drainage water treatment system is proposed that can significantly reduce the content of suspended particles in clarified water discharged after settling and filtering – up to 1.5–5 mg/dm3, while the effect of water clarification is more than 95 % with a sharp decrease in the content of cyclic hydrocarbons and organics. In order to determine effective directions, in laboratory conditions, rational parameters of nozzle hydrodedusting were determined for varying degrees of water dispersion using treated wastewater and drainage water. It is established that the most effective mode of operation of the fine-dispersed irrigation system with a nozzle diameter of 1.0 mm. The obtained parameters of finely dispersed irrigation can be adapted for irrigation vehicles.


1993 ◽  
Vol 119 (6) ◽  
pp. 706-712 ◽  
Author(s):  
Omar S. Abu‐Rizaiza ◽  
Hasan Z. Sarikaya

2013 ◽  
Vol 63 (1) ◽  
pp. 102-111 ◽  
Author(s):  
James E. Ayars ◽  
Richard W.O. Soppe

2019 ◽  
Vol 23 (4) ◽  
pp. 58-63
Author(s):  
Ya.B. Legostaeva ◽  
M.I. Ksenofontova ◽  
V.F. Popov

The safe disposal of highly mineralized runoff in the development of indigenous diamond deposits in Western Yakutia is the most important task of ensuring a favorable geo-ecological situation in the region. Using the example of a large experimental material collected at the industrial site of the Udachninsky mining and processing plant, PJSC ALROSA, the geoecological situation in the area of underground drainage water disposal sites was assessed. Under the conditions of a complex and dynamic cryohydrogeological situation on the background of an increase in the volume of water inflow into the mine workings, the excess of the capacitive capabilities of the reservoirs of the storage tanks of the brine can lead to serious geoecological problems. Markers that identify the effects of highly mineralized water on the main abiotic components of the region's ecosystems – soil, bottom sediments and surface water – are strontium and lithium.


1997 ◽  
Vol 77 (3) ◽  
pp. 459-467 ◽  
Author(s):  
Martine C. Duff ◽  
C. Amrhein ◽  
G. Bradford

Evaporation ponds used for agricultural subsurface drainage water disposal in the Tulare Lake Bed (TLB) of the San Joaquin Valley, California, USA, have elevated levels of U. Waterfowl which inhabit and forage the ponds and surrounding areas are threatened by exposure to U. The ponds, which receive irrigation drainage waters and seasonal rain, are subject to wetting and drying periods. The periods result in the accumulation of decaying algae and other organic material in surface sediments. Sediment and waters in the ponds were sampled to determine what factors control U solubility and sediment U concentrations. Data from a 1990 study conducted by Chilcott et al. in 1989 on the TLB ponds were used to help identify what factors may control U solubility. Pond sediment U concentrations decreased abruptly with depth and surface sediment U concentrations were related to dissolved Ca:HCO3 ratios. Pond algal U bioaccumulation was favored in waters with high Ca:HCO3 ratios, which had lower pH values and carbonate alkalinities than waters with low Ca:HCO3 ratios. Ponds with high salinities and high carbonate alkalinities contained the highest aqueous U concentrations relative to other TLB ponds. Sediment total organic carbon (TOC) was correlated with sediment U concentrations, suggesting that U is bound to organic matter. The source of TOC is most likely from algae deposition. Key words: Uranium, salinity, redox potential, carbonate alkalinity, bioaccumulation, algae


Author(s):  
Saulius GUŽYS ◽  
Stefanija MISEVIČIENĖ

The use of nitrogen fertilizer is becoming a global problem; however continuous fertilization with nitrogen ensures large and constant harvests. An 8 year research (2006–2013) was conducted to evaluate the relationships between differently fertilized cultivated plant rotations. The research was conducted in Lipliunai (Lithuania) in the agroecosystem with nitrogen metabolism in fields with deeper carbonaceous soil, i.e. Endocalcari Endohypogleyic Cambisol (CMg-n-w-can). The research area covered three drained plots where crop rotation of differently fertilized cereals and perennial grasses was applied. Samples of soil, water and plants were investigated in the Chemical Analysis Laboratory of the Aleksandras Stulginskis University certified by the Environment Ministry of the Republic of Lithuania. The greatest productivity was found in a crop rotation with higher fertilization (N32-140). In crop rotation with lower fertilization (N24-90) productivity of cereals and perennial grasses (N0-80) was 11–35 % lower. The highest amount of mineral soil nitrogen was found in cereal crop rotation with higher fertilization. It was influenced by fertilization and crop productivity. The lowest Nmin and Ntotal concentrations in drainage water were found in grasses crop rotation. Crop rotations of differently fertilized cereals increased nitrogen concentration in drainage water. Nmin concentration in water depended on crop productivity, quantity of mineral soil nitrogen, fertilization, and nitrogen balance. The lowest nitrogen leaching was found in the crop rotation of grasses. Cereal crop rotation increased nitrogen leaching by 12–42 %. The usage of all crop rotations resulted in a negative nitrogen balance, which essentially depended on fertilization with nitrogen fertilizer.


2017 ◽  
Vol 3 (1) ◽  
pp. 112-126 ◽  
Author(s):  
Ilaria Cristofaro

From a phenomenological perspective, the reflective quality of water has a visually dramatic impact, especially when combined with the light of celestial phenomena. However, the possible presence of water as a means for reflecting the sky is often undervalued when interpreting archaeoastronomical sites. From artificial water spaces, such as ditches, huacas and wells to natural ones such as rivers, lakes and puddles, water spaces add a layer of interacting reflections to landscapes. In the cosmological understanding of skyscapes and waterscapes, a cross-cultural metaphorical association between water spaces and the underworld is often revealed. In this research, water-skyscapes are explored through the practice of auto-ethnography and reflexive phenomenology. The mirroring of the sky in water opens up themes such as the continuity, delimitation and manipulation of sky phenomena on land: water spaces act as a continuation of the sky on earth; depending on water spaces’ spatial extension, selected celestial phenomena can be periodically reflected within architectures, so as to make the heavenly dimension easily accessible and a possible object of manipulation. Water-skyscapes appear as specular worlds, where water spaces are assumed to be doorways to the inner reality of the unconscious. The fluid properties of water have the visual effect of dissipating borders, of merging shapes, and, therefore, of dissolving identities; in the inner landscape, this process may represent symbolic death experiences and rituals of initiation, where the annihilation of the individual allows the creative process of a new life cycle. These contextually generalisable results aim to inspire new perspectives on sky-and-water related case studies and give value to the practice of reflexive phenomenology as crucial method of research.


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