What is wtp plant

Apex Ecotech is involved in distributing a sustainable and cost-effective solution for water purification and water desalination system. Our raw water treatment system and the innovative environment friendly technologies are used in producing clean water from polluted water. An ultrafiltration membrane, EDR electrodialysis reversal , reverse osmosis system removes all virus and bacteria and salts without requiring toxic chemical treatment.

We supply the most advanced and best quality raw water treatment system, reverse osmosis water filtration systems, EDR and water desalination system to our clients. Our mission is to provide safer drinking water and to deliver quality and cost effective reverse osmosis systems that provide powerful solutions for all water treatment applications.

Email: [email protected]. Plot No. Water Treatment Plant. Contact an Engineer. The Pre-Sedimentation Building is where the treatment process really begins. The raw water from the settling pond is lifted feet up to the water treatment plant.

The raw water is delivered to the headworks of the water treatment plant where the first of 5 major unit water treatment processes start the treatment to make the water safe to drink. The 5 major unit processes include chemical coagulation, flocculation, sedimentation, filtration, and disinfection described below.

There are chemicals added to the water as it enters the various treatment processes. The first chemical added is chlorine dioxide and it is an oxidant used to break down naturally occurring organic matter such as decaying leaves and other plant material. A chemical coagulant known as aluminum sulfate is used as the primary coagulant.

The coagulants are added at the rapid mix unit; this is a unit that creates turbulent mixing energies to help thoroughly disperse the chemical coagulants into the raw water and to begin the coagulation process.

The coagulants that cause very fine particles to clump together into larger particles that can then be removed later in the treatment process by settling, skimming, draining or filtering.

The coagulated water then flows to the next major unit process, the flocculation process. Flocculation is a slow stirring process that causes the small coagulated particles to form floc. The flocculation process promotes contact between the floc particles and the particulates sediment in the water. Generally, these contacts or collisions between particles result from gentle stirring created by a mechanical or hydraulic means of mixing. There are two sets of flocculation basins that contain mechanical mixing paddles that the water passes through to gently stir the coagulated water.

The floc formed creates a surface in which the particulates in the water adsorb adhere to the surface of the floc thus forming larger settleable particles for ease of removal by sedimentation and filtration. The flocculated water then flows to the next major unit process, the sedimentation process. The purpose of the sedimentation process is to remove suspended solids particles that are denser heavier than water and to reduce the particulate load on the filters.

Sedimentation is accomplished by decreasing the velocity of the water being treated below the point where it can transport settleable suspended material, thus allowing gravitational forces to remove particles held in suspension. When water is almost still in sedimentation basins, settleable solids will move toward the bottom of the basin. This process of sedimentation removes almost ninety percent of the solids in the water. The clearer water on the surface is collected in the launder tubes that direct the water to the filter gallery to remove the remaining ten percent of solids.

Before arriving at the Filtration Facility chlorine is added to the water at the pre-chlorination point to begin the disinfection process. The disinfection process is designed to kill or inactivate most microorganisms in water, including essentially all pathogenic organisms whether they are from bacteria, viruses or intestinal parasites.

Pathogenic organisms are the microscopic bugs in the water that can cause waterborne diseases such as gastroenteritis, typhoid, dysentery, cholera, and giardiasis. The chlorinated settled water then flows into the Filtration Facility and onto the filters for the last of the major unit processes used to treat the drinking water.

Filtration is the process of passing water through material such as a bed of coal, sand, or other granular substance to remove particulate impurities that were not removed during the sedimentation process. The water treatment plant uses rapid rate multi-media gravity filter beds. The filters are comprised of a top layer of anthracite, a middle layer of filter sand and then a bottom layer of garnet sand and one an underdrain system that collects the filtered water.

The water enters on top of the filter media and passes down through the filter beds by gravity. The different materials work like a giant strainer and trap remaining particulates. When the filters start to get packed full of particles, the operators clean them using a procedure called backwashing.

Potable water is run backwards through the filters releasing the entrapped particulates that are collected in drain troughs. In a treatment plant, sludge and biosolids are produced and discharged. Concentrated solids can be placed in landfills and incinerated, as well as use as a soil nutrient. Subscribe to our newsletter to get expert advice and top insights on corrosion science, mitigation and prevention. By: Della Anggabrata. Dictionary Dictionary Term of the Day. Emulsifying Agent. Corrosionpedia Terms.

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