what are the different types of reactors in water treatment

How many types of reactors are commonly used in the treatment of water?

There are two basic types: the pressurized-water reactor (PWR) and the boiling-water reactor (BWR).

What is a reactor in wastewater?

The reactor is a tank into which air is pumped to ensure that a sufficient supply of oxygen is present for aerobic biochemical processes to occur. The addition of oxygen allows microorganisms to consume dissolved organic matter in the wastewater that are not removed by a screening or settling process.

What are the different types of water treatment plants?

Types of Water Treatment PlantsWastewater Treatment Plant (WWTP) ... Sewage Treatment Plants (STPs) ... Effluent Treatment Plants (ETP's) ... Demineralization (DM) Treatment Plants. ... Reverse Osmosis (RO) Water Treatment.

What are the names of the 3 main stages in the water treatment process?

There are three main stages of the wastewater treatment process, aptly known as primary, secondary and tertiary water treatment.

What are the 7 stages of water treatment?

They typically consist of several steps in the treatment process. These include: (1) Collection ; (2) Screening and Straining ; (3) Chemical Addition ; (4) Coagulation and Flocculation ; (5) Sedimentation and Clarification ; (6) Filtration ; (7) Disinfection ; (8) Storage ; (9) and finally Distribution.

What are the 5 stages of water treatment?

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.

How many types of water treatment systems are there?

fourThere are four common types of household water treatment systems, and they are: Filtration System: This is a water filter device that will remove impurities by means of a physical barrier, chemical, or a biological process.

What is primary secondary and tertiary treatment?

Wastewater is treated in 3 phases: primary (solid removal), secondary (bacterial decomposition), and tertiary (extra filtration). List the steps of wastewater/sewage treatment.

What are the stages of STP?

The Full STP ProcessStep One – Define the market. ... Step Two – Create market segments. ... Step Three – Evaluate the segments for viability. ... Step Four – Construct segment profiles. ... Step Five – Evaluate the attractiveness of each segment. ... Step Six – Select target market/s. ... Step Seven – Develop positioning strategy.More items...

How does ETP work?

The principle of operation of ETP is Physico-Chemical treatment followed by Polishing Treatments like –Sand Filtration, Activated Charcoal treatment (Adsorption), Ozonisation (Chemical Oxidation), Ultra Filtration (UF), Reverse Osmosis (RO) and evaporation (If required). Features : Semi-automatic Operation.

How does a batch reactor work?

Batch reactors are used for most of the reactions carried out in a laboratory. The reactants are placed in a test-tube, flask or beaker. They are mixed together, often heated for the reaction to take place and are then cooled. The products are poured out and, if necessary, purified.

Which bioreactor is used for wastewater treatment?

Membrane bioreactorMembrane bioreactor (MBR) is a combination of membrane process like microfiltration or ultrafiltration with a biological wastewater treatment process, the activated sludge process. It is now widely used for municipal and industrial wastewater treatment.

What are membrane bioreactors used for?

Membrane Bioreactors (MBRs) combine conventional biological treatment (e.g. activated sludge) processes with membrane filtration to provide an advanced level of organic and suspended solids removal. Applicable in conventional wastewater plants.

When would you use a plug flow reactor?

Plug flow reactors are used for some of the following applications:Large-scale production.Fast reactions.Homogeneous or heterogeneous reactions.Continuous production.High-temperature reactions.