نتایج جستجو برای: water discharge
تعداد نتایج: 641898 فیلتر نتایج به سال:
In the manufacture of beet sugar, improving discharge water quality is a key objective for effective reuse of water for irrigation purposes. Problems associated with the discharge water includes generation of odors from biogenic hydrogen sulfide and ammonia, sludge buildup in ponds used for water retention and treatment due to precipitation of metal sulfides, and inadequate water discharge qual...
In order to controlling and reducing water pollution of surface water and measures to reduce these emissions require environmental programs at watershed scale and also to ensure the cost-effectiveness of such programs, the first stage is determining critical areas that produce polluted runoff. Process-based hydrological models are useful tools for simulating of watershed processes. In this stud...
The observation that “old” water dominates storm runoff suggests that release of low-solute water from soils rather than rainwater must cause storm runoff dilution. This inference is supported by sprinkling experiments in an 860-m catchment in the Oregon Coast Range, in which .200 mm of both high and low ionic strength precipitation produced similar concentration-discharge trends. Rainwater che...
Streamflow augmentation has the potential to become an important application of recycled water in water scarce areas. We assessed the economic and ecological merits of a recycled water project that opted for an inland release of tertiary-treated recycled water in a small stream and wetland compared to an ocean outfall discharge. Costs for the status-quo scenario of discharging secondary-treated...
ion Taxes Subsidies for Pollution Control Tradable Discharge Permits Effluent Charges Surface Water / Sea Ground Water Municipal Use Public Water
introduction: side weir structures are extensively used in hydraulic engineering, irrigation and environmental engineering, and it usually consists of a main weir and a lateral channel. side weirs are also used as an emergency structure. this structure is installed on one side or both sides of the main channel to divert the flow from the main channel to the side channel. lateral outflow takes p...
The study was conducted in 2013/14 with the objective of determining the effects of Bahir Dar textile factory effluents on the head of Blue Nile River water quality. Dissolve oxygen was higher at the upstream site of the river, whereas BOD5, TDS, and total alkalinity values were higher at wastewater outlet of the factory site. The mean values of dissolved oxygen, BOD5, and total alkalinity were...
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