User talk:Shubhamindia123

November 2010
Your account has been blocked indefinitely from editing Wikipedia because it appears to be mainly intended or used for publicity and/or promotional purposes. Please read the following carefully.

Why can't I edit Wikipedia?

Your account's edits and/or username indicate that it is being used on behalf of a company, group, celebrity or other well-known individual, or organization for purposes of promotion and/or publicity. The edits may have violated one or more of our rules on spamming, which include: adding inappropriate external links, posting advertisements, and using Wikipedia for promotion. Wikipedia has many articles on companies, groups, and organizations, but it is considered inappropriate for such groups to use Wikipedia to write about themselves. In addition, usernames like yours are disallowed under our username policy.

Probably not. See WP:FAQ/Organization for a helpful list of frequently asked questions by people in your position. Also, review the conflict of interest guidance to see the kinds of limitations you would have to obey if you did want to continue editing about your company, group, or organization. If this does not fit in with your goals, then you will not be allowed to edit again. Consider using one of the many websites that allow this instead.
 * Am I allowed to make these edits if I change my username?

You are still welcome to write about something other than your company or organization. If you do intend to make useful contributions on some other topic, you must convince a Wikipedia administrator that you mean it. To that end, please do the following:
 * What can I do now?


 * Add the text on your user talk page.
 * Replace the text "Your proposed new username" with a new username you are willing to use. See Special:Listusers to search for available usernames. Your new username will need to meet our username policy.
 * Replace the text "Your reason here" with your reason to be unblocked. In this reason, you must:
 * Convince us that you understand the reason for your block and that you will not repeat the edits for which you were blocked.
 * Describe in general terms the contributions that you intend to make if you are unblocked.

If you believe this block was made in error, please see how to appeal a block. Favonian (talk) 10:37, 1 November 2010 (UTC)

Wastewater Treatment Plant From Shubhaminc
Waste water treatment plant

We call water "hard" if it contains a lot of calcium or magnesium dissolved in it. A water softener reduces the dissolved calcium, magnesium, and to some degree manganese and ferrous iron ion concentration in hard water. These "hardness ions" cause three major kinds of undesired effects.

Most visibly, metal ions react with soaps and calcium-sensitive detergents, hindering their ability to lather and forming a precipitate-the familiar "bathtub ring". Presence of "hardness ions" also inhibits the cleaning effect of detergent formulations.

Second, calcium and magnesium carbonates tend to precipitate out as hard deposits to the surfaces of pipes and heat exchanger surfaces. This is principally caused by thermal decomposition of bi-carbonate ions but also happens to some extent even in the absence of such ions. The resulting build-up of scale can restrict water flow in pipes. In boilers, the deposits act as an insulation that impairs the flow of heat into water, reducing the heating efficiency and allowing the metal boiler components to overheat. In a pressurized system, this can lead to failure of the boiler.

Third, the presence of ions in an electrolyte, in this case, hard water, can also lead to galvanic corrosion, in which one metal will preferentially corrode when in contact with another type of metal, when both are in contact with an electrolyte. However the sodium (or potassium) ions released during conventional water softening are much more electrolytically active than the calcium or magnesium ions that they replace and galvanic corrosion would be expected to be substantially increased by water softening and not decreased. Similarly if any lead plumbing is in use, softened water is likely to be substantially more plumbo-solvent than hard water

Ion-exchange resin devices Conventional water-softening devices intended for household use depend on an ion-exchange resin in which "hardness" ions trade places with sodium ions that are electrostatically bound to the anionic functional groups of the polymeric resin. A class of minerals called zeolites also exhibits ion-exchange properties; these minerals were widely used in earlier water softeners. Water softeners may be desirable when the source of water is a well, whether municipal or private.

How it works The water to be treated passes through a bed of the resin. Negatively-charged resins absorb and bind metal ions, which are positively charged. The resins initially contain univalent hydrogen, sodium or potassium ions, which exchange with divalent calcium and magnesium ions in the water. As the water passes through the resin column, the hardness ions replace the hydrogen, sodium or potassium ions which are released into the water. The "harder" the water, the more hydrogen, sodium or potassium ions are released from the resin and into the water.

Resins are also available to remove carbonate, bi-carbonate and sulphate ions which are absorbed and hydroxyl ions released from the resin. Both types of resin may be provided in a single water softener.

Regeneration As these resins become loaded with undesirable cations and anions they gradually lose their effectiveness and must be regenerated. If a cationic resin is used (to remove calcium and magnesium ions) then regeneration is usually effected by passing a concentrated brine, usually of sodium chloride or potassium chloride, or hydrochloric acid solution through them.

For anionic resins a solution of sodium or potassium hydroxide (lye) is used. If potassium chloride is used the same exchange process takes place except that potassium is exchanged for the calcium, magnesium and iron instead of sodium. This is a more expensive option and may be unsuited for people on potassium-restricted diets.

waste water treatment plant covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re-use.

Most industries produce some wet waste although recent trends in the developed world have been to minimise such production or recycle such waste within the production process. However, many industries remain dependent on processes that produce wastewaters.

Water treatment for the production of drinking water is dealt with elsewhere. (See water purification.) Many industries have a need to treat water to obtain very high quality water for demanding purposes. Water treatment produces organic and mineral sludges from filtration and sedimentation. Ion exchange using natural or synthetic resins removes calcium, magnesium and carbonate ions from water, replacing them with hydrogen and hydroxyl ions. Regeneration of ion exchange columns with strong acids and alkalis produces a wastewater rich in hardness ions which are readily precipitated out, especially when in admixture with other wastewaters.

Sewage treatment plant, or domestic wastewater treatment plant, is the process of removing contaminants from wastewater and household sewage, both runoff (effluents) and domestic. It includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants. Its objective is to produce an environmentally-safe fluid waste stream (or treated effluent) and a solid waste (or treated sludge) suitable for disposal or reuse (usually as farm fertilizer). Using advanced technology it is now possible to re-use sewage effluent for drinking water, although Singapore is the only country to implement such technology on a production scale in its production of NEWater.