28 July 2016
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On the Right Track: Things You Need to Know Before Buying Silver

Silver CoinsSimilar to gold, there are many ways you can invest in silver. You can either choose coins, junk silver, ETFs and bullion bars to name a few. With so many options, you need to make sure that you have an in-depth understanding of the silver market.

Types of Silver

Among the types of silver in the market, silver ETFs are the most popular. Many investors recommend them for investment. The downside of this type of silver, however, is the counter-party risk. You have to keep in mind that in this option, you do not actually buy silver but silver units. The value of these units is, of course, anchored on the future price of the silver. You cannot get your actual silver; what you can do is cash in your units.

Silver coins are among the oldest and preferred methods of investing in silver. When you buy silver coins in the U.K., you become an owner of a piece of pure silver. Atkinsons Bullion added that this comes in the form of numismatic coins or bullion silver coins. The former has value in terms of historical significance, while the latter is for their actual silver content. Numismatic coins are ideal for collectors, while bullion coins are for investors.

Buying Silver

Buying in bulk would always get you more value for your money than buying one piece at a time. This is particularly the case when you are dealing with coins. You have to keep in mind that coin production is in bulk, so lessen the overhead cost by buying as many as you can.

Collectors and investors recommend asking the help of a broker or dealer, as well. These professionals have years of experience in buying and selling silver. They would not only guide you which to buy, but likewise check whether the coins or bars that you are after are not fake.

Silver is a good investment, so make the most of your money by getting the right ones. Seek help if necessary.


11 July 2016
Category:
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Three Vital Processes for Effective Water Clarification

Water Treatment PlantMost of the water that flows into our homes contains various contaminants either in soluble or insoluble form. The soluble contaminants are usually minerals the water absorbs or dissolves as it flows. The insoluble contaminants include dust, soil, and leaves. The larger insoluble particles are easier to remove from the water through filtration, unlike the fine particles.

Clarification Process

Often, fine particles found in surface repel each other since most of their surfaces are negatively charged. To separate the particles, the water has to go through a clarification process. The pros from ashtuck.com share that the entire clarification process may include coagulation, sedimentation, and flocculation and is known as conventional clarification. Clarification process removes all kinds of sediments, organic matter, particles, and colour.

Coagulation

Coagulation involves the addition of iron or aluminium salts. These salts neutralise the negative charge on particles and hydrolyze the insoluble precipitates. Water-soluble organic polymers that contain ionised sites can also effect coagulation.

Flocculation

During flocculation, the decentralised particles during coagulation aggregate to form large precipitates through slow and gentle mixing. Flocculation takes about 45 minutes and takes place in different compartments. The mixing speeds vary with the basins and often as water flows from the top to bottom of the basin the speed decreases.

Sedimentation

After flocculation, the agglomerated particles enter a clarifier unit. The particles then float are removed through sedimentation or are skimmed from the surface. Through sedimentation, most solids settle by gravity. Sedimentation occurs in circular or rectangular basins that contain inclined basins which increase the surface area for sedimentation, making the process more effective. Filtration then removes the remaining materials.

For an effective water clarification process, it is good to acquire quality clarifier or thickener units from leading water treatment equipment suppliers. Your clarifier like any other machine will need regular maintenance to keep performing its role. In case you need to renovate an old thickener or clarifier, a retrofit drive unit is a suitable and economical solution.