Water Treatment Plants and Sewage Treatment Plants

We, Mirale deal with water, waste water and effluent treatment plants and total water management solutions. we are dedicated for service and maintenance of WTP, ETP, STP and other related works. We are a renowned supplier of water and waste water treatment plant, Hot water system and Drainage solutions. The Technical compatibility and years of Experience of our professionals ensure that they offer total management solution in water, waste water and related area. We also offer services like AMC, O & M and supply of Spares etc. We form a team of knowledgeable and talented professionals that is capable of taking number of prompt actions in order to endow our clients with effective solutions. Besides, they ensure our firm is successful in meeting the emerging requirements of customers timely. Apart from it, we ensure all our skilled and semi-skilled workforce stay updated of the latest market technique.


Our focus on water derives from the commitment to our customers to work with the physical attributes of the application environments of your world. In this overview you will find examples which allow you to examine some of our core process competencies. We believe we have intimate knowledge and significant insight into the application environments that traverse the broad spectrum of water chemistry and water treatment. We can collaborate with you in the real physics of reverse osmosis, ion exchange, boiler chemistry and high purity water where we can share our experience in complete control loops for various water parameters. We can assist you in determining the most effective water treatment architecture to help you see and assess what is happening in your plant from the control room or the board room. Every member of our company listens to you with the aim of fluently presenting you with only the most appropriate solution in your daily application language. The inherent expertise we offer at Nikhil Infra Engineering & Infra exists to make your life simpler. Nikhil Infra Engineering & Infra offers you unlimited modularity in your water world.


The testing facilities involve :

  • Drinking Water treatment Plants.
  • Reverse Osmosis Plants.
  • Ultra Filtration Plants.
  • Pre treatment Plants HRSCC, Tube settlers, Lamella Clarifier etc.
  • Pressure Sand Filter in MSRL / SS 304.
  • Activated Carbon Filter in MSRL / SS 304 High rate and grade carbon treatment.
  • Softening Units.
  • Ion Exchange Plants, Mix Bed.
  • Water Disinfection systems UV, Ozone Generators, and ClO2.
  • Specific pollutant removal such as Silica, Mn, Fe, Arsenic removal systems.
  • Sewage water treatment Plants Aerobic / Anaerobic, MBR, MBBR, SAFF,Extended Aeration treatments.
  • Plumbing network designing with automation.
  • Swimming Pool filtration, Water Parks equipments
  • Large Lake / Pond treatments.
  • Packaged Drinking water treatment Plants with Designer water concepts.
  • PET blow moulding solutions.
  • PET bottle designing.
  • Cooling Tower treatment against Lingionella.
  • Liquid Nitrogen Flushing systems in beverage filling lines.
  • Laboratory Set up Chemical and Microbiological analysis.
  • Packaging solutions.



Working Principle is same like pressure sand filter. Filtering media is Activated Carbon Granules. Given Below are details for Activated carbon characteristics and data.
Activated carbon is useful in drinking water treatment because it acts as an adsorbent, and can effectively remove particles and organics from water. These organics are of great concern in water treatment because they react with many disinfectants.

Adsorption and how it works

Adsorption is the process by which Activated Carbon removes substances from water. Defined, adsorption is "the collection of a substance onto the surface of adsorbent solids." It is a removal process where certain particles are bound to an adsorbent particle surface by either chemical or physical attraction. Adsorption is often confused with Absorption, where the substance being collected or removed actually penetrates into the other solid.

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  • Colloidal particles and suspended solids brought together by Coagulants
  • Coagulated particles made heavy by flocculants
  • Heavy flocs made to settle down
  • Substantial concentration of previously formed flocs, recycled for ‘Seeding effect’ responsible for speedy flocculation

Hydraulic Separation

  • Uses up flow design to move water into settling zone for Clarification.

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Ion Exchange resins are insoluble granular substances which have in their molecular structure acidic or basic radicals that can be exchanged. The positive or negative ions fixed on these radicals are replaced by ions of the same sign in solution in the liquid in contact with them.

The ion exchange is complete without:

  • deterioration or solubilisation
  • Changing the total number of ions in the liquid before the exchange

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Overview of sewage treatment

1. What is sewage treatment?

Sewage treatment, or domestic wastewater treatment, 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.

2. Objective of sewage treatment:

To Produce:-

A waste stream (or treated effluent), solid waste or sludge suitable for discharge or reuse back, Remove contaminates, toxic, disease causing materials which are harmful for environment , human health and reduce pollution.

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There are four general categories of crossflow membrane filtration: microfiltration, ultrafiltration, nanofiltration, and Reverse Osmosis.

Microfiltration (MF) Microfiltration removes particles in the range of approximately 0.1 to 1 micron. In general, suspended particles and large colloids are rejected while macromolecules and dissolved solids pass through the MF membrane. Applications include removal of bacteria, flocculated materials, or TSS (total suspended solids). Transmembrane pressures are typically 10 psi (0.7 bar).

Ultrafiltration (UF) Ultrafiltration provides macro-molecular separation for particles in the 20 to 1,000 Angstrom range (up to 0.1 micron). All dissolved salts and smaller molecules pass through the membrane. Items rejected by the membrane include colloids, proteins, microbiological contaminants, and large organic molecules. Most UF membranes have molecular weight cut-off values between 1,000 and 100,000. Transmembrane pressures are typically 15 to 100 psi (1 to 7 bar).

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This unit consist three sections. 1. Flash Mixes. 2. Flocculator 3. Secondary settler (tube settler) From Raw Water UGR disinfected water needs to be lifted & it is further led to the Flash mixer, through channel. Flash mixer is a high speed mixer which mixes the coagulation chemical instantly. Coagulant chemical shall be selected according to raw water report. Then it goes into Flocculator. Flocculator is a slow speed mixer. In the flocculation chamber flocks are formed to enhance the settling process which is accomplished in the next unit i.e. Secondary settler.

The tube settler has hopper bottom. The water after coagulation is fed to the settler from bottom side & travels upwards. The surface area is increased by placing specific modules at inclined angle so that the contact time & surface area with water is increased. The flocks formed after coagulation slide down the inclined modules into the hopper bottom & clear liquid overflows into the clear water sump through collection troughs. The flocks settle at the bottom & form sludge having precipitate chemical contaminant such as Mn, Sio2 etc. which is drained out periodically & led to the common drain chamber.

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What is MBR ?

Membrane bio reactor is advance form of biological wastewater treatment based on aerobic process which uses bioreactor for degradation of pollutants load and ultra filtration for solid liquid separation.

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We bring together over 16 years of applied knowledge, theoretical expertise and all-round experience in the field of Water Treatment Systems. We at Nikhil Infra have always taken care to ensure that the insights gained in working on innumerable products and projects are passed on in various locations and divisions. We focus all our curiosity, passion and commitment on one goal: to provide solutions that take your company that essential step forward.

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