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Your Guide to Raw Water Treatment and Why Your Industrial Facility Needs It

Cleaning the water used by industrial facilities through chemicals involves extensive services from fresh construction to continual maintenance. Chemical cleaning is especially useful for raw water treatment. Raw water is water found in nature that has not been treated for content like particles, ions, minerals, parasites, or bacteria. Treatment of raw water is typically done in industrial or commercial settings since it is vital to ensure that raw water is effectively treated before it makes its way to the general public.

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Your Guide to Raw Water Treatment and Why Your Industrial Facility Needs It

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  1. Your Guide to Raw Water Treatment Your Guide to Raw Water Treatment and Why Your Industrial Facility and Why Your Industrial Facility Needs It Needs It Various factors like the varieties and amount of chemicals used play a huge role in how the raw water is treated. Some of the items removed by the raw water treatment system include suspended and colloidal solids, silica, iron, hard matter, pathogens etc. CATEGORIES OF CHEMICAL CLEANING Pre-operational cleaning Post-operational It consists of the removal of any foreign material left by construction activities either on the system fabrication or piping. It is conducted for many reasons, such as reduced transfer of heat, safety, reduced flow, reduced surface area, accessibility to complete inspection and many more. METHODS OF CHEMICAL CLEANING Fill and Soak mode It is mostly used for cleaning internal surfaces of big volume pipes and vessels where it is not feasible to have proper circulation. The system is filled with a chemical cleaning solution and drained after some time has elapsed. Fill and circulate mode This mode comprises of filling a system with a solution for chemical cleaning and circulating this using a pump. It is vital to keep fluid velocity within a certain range to avoid corrosion. Cascading cleaning Chemicals are added at the top of the vessel, and the level at the bottom is maintained as a common method in the cleaning of towers. Slug flow mode A slug of liquid chemicals is applied in between two separators. Either gas or liquid can be used as a driving force to move the slug via the pipeline. Vapour phase mode This is an upgraded process of steaming where chemicals are infused in a stream of steam. Though this mode is diverse, it is used mostly in post-operational cleaning for removing contaminants like ammonia, benzene, H2S, mercaptans etc. Boiler boil-outs Boiler boil-outs are recommended as preventive measures before the start-up of operations. This is an alternative alkaline method to clean systems of steam generation. Foam cleaning A gas combined with the same concentration of chemicals is used in this method. This is ideal for systems featuring a large ratio of area to volume. Nozzle cleaning mode A nozzle with a 360-degree rotating head is used to spray the walls of the vessel and keep the volume of chemicals low. This permits the maintenance of temperature and flow of chemical solution in the range that is recommended. hydrochem.com.au | (03) 9190 0100

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