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Large evaporation pond is necessary for the disposition of the output water from mining.
It can dam in the narrow valley mouth to form the pond and discharged water into the plain.
Two decant outlets allow bleed water from the tailings to flow through to the evaporation pond.
(3)It’s urgent to establish specialty in tailings pond in colleges and universities for more professional management companies to run tailings ponds and reduce the operational risks.
Water resources and water engineering. 03 (1993) 1-6

Wind turbines (often called windmills) do not release emissions that pollute the air or water (with rare exceptions), and they do not require water for cooling.
It is caused by the uneven heating of the Earth's surface by the sun.Because the Earth's surface is made of very different types of land and water, it absorbs the sun's heat at different rates.
During the day, the air above the land heats up more quickly than the air over water.
At night, the winds are reversed because the air cools more rapidly over land than over water.
From a global perspective, the real professional blade manufacturer LM Wind Power, compared to domestic-funded enterprises, in terms of quality a slight advantage, but the price is more than 15% higher.

Precipitation can increase the water content and leachate amount obviously.
WATER SCIENCE AND TECHNOLOGY, 2000. 41(3): p. 231-238
ROBINSON, Professional Opinions on the Evolving Nature of the Municipal Solid Waste Management Industry in the UK.
WATER SCIENCE AND TECHNOLOGY, 2003. 48(4): p. 29-36
Waste water Determination, Determination methods for water and wastewater. 2002, China Environmental Science Press: Beijing, China. p. 105–107, 279–281

The mould abrasive polishing process is the one oldest manufacturing technology and is still today a semi-artisanal and time-consuming operation employed by skilled professionals (about 30% of the mould manufacturing time), using hand tools such as grinding cones and felt discs impregnated with abrasive hard particles.
C Si Mn Cr Ni Co Cu P Ti Fe 0.370 1.590 1.590 1.850 0.730 0.020 0.090 0.005 0.005 balance Experimental Procedure The specimens were placed inside the ultrasonic tank equipment [15], 150 ml capacity (VRm- Ultrasonics), one per test, filled with 100 ml of hard particles paste or slurry (mixture of 50% vol. of particles and 50% water volume), which completely covered the samples.
A4 A5 A2 A3 A0 A1 A6 A7 Workpiece Piezoeletric ceramic Aluminium disc specimen Water tank Fig. 1.

The PRTR and Its Benefits A PRTR is a database or register of chemicals covering releases to air, water and land as well as wastes transported to treatment and disposal sites [4,5].
The registered pollutants of PRTRs normally include emissions to air, surface waters or land, which are generated from different emission types of release, transfer and diffuse sources.
NPI forms the Australian national PRTR system, which is unique in tracking emissions across Australia and coordinated by the Department of Sustainability, Environment, Water, Population and Communities.
The Swiss PRTR is a publicly accessible register system that provides information on pollutant releases into air, water or land, and on pollutant transfer into wastewater.
Moreover, considering the practice of OECD countries, the PRTR data is generally too hard and professional to be understood by the public.

Due to high water outflow (irrigation system) in the south, the Macedonian Government decided to build water-feeding system into the lake, which consists of wells system in river Vardar (near city Valandovo), 20 km away from the Lake Dojran.
The surface area of the lake is 4.23 km2 and it accumulates approximately 127 million m3 of water.
To collect the fish samples, fishing was performed during late afternoon towards the end of the fishing season in November 2010 with the help of professional local fisherman, as suggested in literature [21].
Evaporation influences the concentrations of dissolved compounds in water and the evaporation of light H2O.
Faganeli, The sources of dissolved inorganic carbon in pore waters of lacustrine sediment, Water Air Soil Pollut. 99 (1997) 333-341

Youtefa Bay land cover is classified based on cloud, cloud shadow, water, vegetation, open land, and built-up areas.
The water class is a representation of Youtefa Beach and the Pacific Ocean which flanks Youtefa Bay.
The water class is a representation of Youtefa Beach and the Pacific Ocean which flanks Youtefa Bay (Fig. 3).
High classification accuracies were achieved (Table 4), and it was possible to successfully distinguish areas covered by cloud, cloud shadow, vegetation, open land, built up and water in satellite images.
Us Geological Survey Professional Paper 964, A Revision of the Land Use Classification System as Presented in U.S.

The water cement ratio was 0.55 and the cement content was 350 kg/m3.
The specimens were remolded on the next day, and subjected to moist curing with water started immediately after casting for two weeks, then left in the atmosphere of laboratory for another two weeks.
This is comforting news for professionals who are working in the field of structural repair and strengthening.

This is mainly embodied in the atmospheric pollution, noise pollution, water and soil pollution, etc.
C.Water and Soil Pollution In China, the environmental pollution incidents caused by traffic accidents have become a social concern.
The accidents caused by transporting dangerous good are also an important factor in our water pollution, which accounts for 41% in all hazardous materials accidents [10].
In addition, during the transport process, the waste may seep into water and soil inevitably causing water and soil pollution, especially the cargo handling, equipment maintenance and fuel injection, thaw and cleaning are all latent factors in causing water and soil pollution.
In order to concentrate on main business and raise the efficiency, the enterprises can develop the third party transportation, which means that they outsource their own transportation business to professional transport enterprises.

The specimens were polished with 2400 μm silicon carbide paper (Streuers, Willich, Germany) under water-cooling conditions until a flat surface was obtained.
For all polishing systems, each step was performed for 60 s using a slow-speed electric hand-piece at 10,000 rap/min without water.
The specimens were cleaned ultrasonically by an ultrasonic cleaner (Snobakr Ultrasonic Cleaner, 610, Jinan,China) for 10 min in distilled water after each step.
This study simulated the clinical procedure of grinding and polishing with four brands of zirconium blocks; then, the same dental professional used different polishing systems to polish the zirconium blocks in the same limited time.
In the grinding stage, the grinding method was carried out under the condition of cooling water, so the reversed-phase transformation of the zirconia crystal could be prevented.