Wastewater treatment consists of a series of treatment processes for the removal of unwanted physical, chemical, and gaseous impurities present in water. Different processes, techniques and methods are adopted for the removal of different kinds of impurities.

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Water Treatment System


Filtration is a process of removal of suspended matter. For the removal of turbid suspended matter in the raw water, pressure sand & dual media filters are used. For a reduction in iron content(suspended form), either an iron removal or an activated carbon filter with prechlorination can be used. Free chlorine in water can be adsorbed by using activated carbon filters. Filtration systems are normally designed, based on raw water velocity.

Tas offers a wide range of filtration systems. Filters are available with single, 5-way valve operation & multiple valve operation depending on fluoride and the application. Filters are available in MS(painted /epoxy coated), FRP & HDPE construction.

Different types of filters available are:

  • Sand Filter
  • Iron removable filter
  • Dual media filter
  • Activated carbon filter


Water Treatment System

Softening is a widely used technology for reducing hotness forming ions(Ca and Mg) which precipitate and scale at very low temperatures and pressures. Softening is a reversible ion exchange process wherein the hardness-forming ions are exchanged with sodium ions and present in the resin group. TAS offers a wide range of softening plants with versatility inflow, flexibility in resin quantities and ease of operation.

“wide range of combinations for specific requirements”


Water Treatment System

Demineralization technology is proven and reliable process used in the water treatment industry. A properly packaged unit incorporates the principles of ion-exchanged, degasification and polishing to produce mineral free water. Demineralized water finds wide application in the field of steam, power process and cooling. DM is technology that offers qualitative output to the user in terms of satisfying his specific needs. Thus to gain the maximum advantage it is necessary that the DM Plant is configured accurately. TAS offers a wide range of combination for specific requirements.


Water Treatment System

Ultrafiltration (UF) is a variety of membrane filtration in which hydrostatic pressure forces a liquid against a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained, while water and low molecular weight solutes pass through the membrane. This separation process is used in industry and research for purifying and concentrating macromolecular solutions, especially protein solutions. Ultrafiltration is not fundamentally different from microfiltration, nanofiltration or membrane gas separation, except in terms of the size of the molecules it retains. Ultrafiltration is applied in cross-flow or dead-end mode and separation in ultrafiltration undergoes concentration polarization. Ultrafiltration systems eliminate the need for clarifiers and multimedia filters for waste streams to meet critical discharge criteria or to be further processed by wastewater recovery systems for water recovery. Efficient ultrafiltration systems utilize membranes which can be submerged, back-flushable, air scoured, spiral wound UF/MF membrane that offers superior performance for the clarification of wastewater and process water.


Reverse Osmosis

Reverse osmosis is a process of physical separation of dissolved solids and minerals present in water. This technology uses the principle of osmosis wherein mineral concentration of raw water is reduced by applying high pressure through a semi permeable membrane. RO is technology that offers the maximum flexibility to the user in terms of satisfying the diverse needs. Thus to gain maximum ‘RO advantage’ it is necessary that the right selection is made of the ‘RO system’. To ensure this and offer you the right solution from our wide range of combinations. We take into consideration your inlet water quality and capacity requirement and offer you the most optimized combination. This choice is dependent on different flux rates, pump models, membrane types and inlet water quality. All this gives you the “Right solutions”, Reduced Running Cost and Optimized Capital Expenditure.



We design and engineer the iron and ammonia removal system, which has been a typical problem in Kathmandu valley borewell water.


We design and engineer the user-friendly, compact and skid mounted water treatment and RO Plants for drinking water, bottled water and mineral water industries


We offer the complete solution of swimming pool filtration system along with swimming pool pumps and accessories.


Purified water and WFI distribution system
We design and engineer the purified water for injections distribution complying to USP, EU, IP and WHO GMP design standards. We use high-quality materials and loop system to ensure the quality. The system consist of high-grade stainless steel piping and fittings, jacketed and non-jacketed water storage tank, zero dead leg valves, pumps, sampling valves, controls, UV Monitoring system, Vent Filter, Spray Valve, Pendant etc.

Pharma water treatment system is divided into three major parts:

  1. Pre Treatment Sytems:
    Pretreatment system is design based on inlet water quality. It consists of filters, ultrafiltration, chemical dosing, aeration system and micron filters
  2. Reverse Osmosis systems:
    RO Block consists of RO housing with membranes, high-pressure booster pump. Electrical control panel, pre-RO Micron filter and automation systems.
  3. Post RO Treatment system:
    Post RO Treatment system consists of a mixed bed/catpol/EDI followed by micron filters and UV.


Water Treatment Accessories

We keep stock of accessories and consumable required for the water treatment and RO plants. We have following high quality items from worlds best manufacturers available with us:
1. FRP and MS vessels
2. Multipot Valves
3. Electronic Dossing Pump
4. Chemical Dossing Tanks
5. RO Membranes
6. Cartridge Filters
7. UV Disinfection System
8. Bad Filters
9. High Pressure and other Pumps
10. Resins & Media.

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