Microfiltration (MF) is a process which removes suspended & colloidal impurities from the liquid by passing it through a micro porous membrane, physically excluding particulate matter.

Microfiltration is a low-pressure cross-flow & dead end membrane process for separating colloidal and suspended particle. MF is used for fermentation both clarification and biomass clarification and recovery. Low pressure membranes were selected to remove turbidity and pathogens without chemical conditioning. Low pressure microfiltration membranes have become more popular & hence, it is being used for difficult waters, containing more solids, turbidity and higher levels of dissolved organics. Depending on the feed characteristics, some of these waters require chemical pretreatment such as pre-chlorination etc.

This technology is now being used for water treatment and wastewater treatment in the pretreatment of Zero Liquid Discharge system (ZLD).

Paramount Limited provides membrane system with pore size ranging from 0.04 micron to 3 microns. We manufacture skid mounted micro filtration membrane systems of all capacity. Paramount offers pilot plan trials to check the suitability of micro filtration membrane system for water, wastewater & process applications in all industries. All our systems are custom designed based on the design parameters and system requirements. One such installation has been for pigment industry where Paramount Limited provided the system with a flow of 1100 cubic meters per day as pretreatment to zero liquid discharge system.

Ultrafiltration works using hydrostatic pressure to force the liquid against a semi-permeable membrane, often utilizing cross-flow membrane filtration. Water and low molecular weight compounds come in permeate through the membrane, whilst suspended solids and high molecular weight compounds remain as a reject. UF membranes are typically classified by their ability to retain solutes of a specific size, with Molecular Weight Cut-Offs (MWCO) ranging from 100,000 daltons to 1500 daltons.

Ultrafiltration is used in a lot of applications in a different segment of industries like chemical, pharmaceutical, food, pretreatment of RO & wastewater treatment. UF can be used in process applications as well as in recycling of treated wastewater based on the feed parameters. Ultrafiltration (UF) is used to remove essentially all colloidal particles (0.01 to 1.0 microns) from water and some of the largest dissolved contaminants. The pore size in the UF membrane mainly determines the type and size of contaminants being removed.

A major attraction of UF is the ability to purify, separate, and concentrate target macromolecules in continuous systems.

Paramount Limited provides ultra filtration membrane system. We manufacture skid mounted ultra filtration membrane systems of all capacity. Paramount offers pilot plan trials to check the suitability of ultra filtration membrane system for water, wastewater & process applications in all industries. One such installation has been for pigment industry where Paramount Limited provided the system with a flow of 14,400 cubic meters per day as pretreatment to RO system for recycling of Cooling Tower Blow Down (CTBD) water.

Nanofiltration (NF), in concept and operation, is more or less similar to reverse osmosis (RO). The main difference is the percentage of removal of salts & its operating pressure. Nanofiltration (NF) allows the monovalent ions to pass through the membranes such as chlorides. Nanofiltration (NF) removes 40% to 90% of monovalent ions, depending on the material and manufacture of the membrane; whereas RO Membrane, at higher operating pressure, rejects all kind of salts between 95% to 99% depending on the type of salts.

Nanofiltration technology is a crossflow membrane filtration which rejects particles in the approximate size range of 1 nanometer. Nanofiltration (NF) falls between Ultrafiltration (UF) and Reverse Osmosis (RO) Membranes.

Organic molecules with molecular weights greater than 150 daltons are rejected in Nanofiltration (NF). Also, dissolved salts are rejected in the range of 20-98% depending on type and concentration of salts. Typical applications of Nanofiltration (NF) include removal of color, total organic carbon (TOC) & hardness from water. Also, the overall reduction of total dissolved solids (TDS) occurs within the process.

Nanofiltration (NF) is being used for separation of organic & inorganic mixtures. Nanofiltration membranes are also used for desalting or deashing application These membranes allows chlorides to pass through the membrane in permeate and product remain in the concentrate. Nanofiltration (NF) membranes are sometimes referred to as softening membranes due to their ability to reject calcium and magnesium. Nanofiltration (NF) membranes also remove sulphate from the water.

Paramount Limited provides Nanofiltration membrane system. We manufacture skid mounted Nanofiltration membrane systems of all capacity. Paramount offers pilot plan trials to check the suitability of Nanofiltration membrane system for water, wastewater & process applications in all industries. Paramount Limited has installed several Nanofiltration membrane system for Dye desalting & concentration. Using this technology, Paramount Limited has achieved Zero Liquid Discharge in distillery units. It was used for the treatment of spent wash at the outlet of biodigester having COD & BOD as high as 55,000 ppm 8,000 ppm respectively.

Reverse Osmosis Technology is the tightest possible membrane process in liquid separation. In most cases the membrane is designed to allow only water to pass through the membrane while rejecting the salts. This process requires high pressure at the high concentration side of the membrane, Normally the operating pressure range is 8-60 bar depends on the type of water like fresh, brackish & sea water.

The RO membrane acts as a barrier to all dissolved salts and inorganic molecules as well as organic molecules with a molecular weight greater than approximately 100 daltons. Rejection of dissolved salt is typically 95 to 99%.

Paramount Limited provide the most economical process for desalination of brackish water and sea water. The system allows further integration with pre & post treatment such as media filters clarifier, microfiltration (MF), Ultrafiltration (UF) in the pretreatment side and ultra-violet sterilizer and chlorination system, degasser & pH correction are the part of post treatment. However, there are numerous other applications in the chemical, pharmaceutical, and food industry, as well as in effluent water recycling applications.

Paramount Limited offers unique hydrophilic Reverse Osmosis (RO) membrane system to produce recycle quality of water from wastewater, having high COD & BOD. Paramount offers pilot plan trials to check the suitability of Reverse Osmosis (RO) membrane system for water, wastewater & process applications in all industries.

Using this technology, Paramount Limited has achieved Zero Liquid Discharge in Refineries, Pharmaceuticals, Drug Industry, Pigment industry & Textile industry.

Paramount Limited can design & manufacture skid mounted Reverse Osmosis (RO) membrane systems of all capacity. We have provided systems with flow capacity up to 24,000 cubic meters per day for Industrial recycle & reuse. Also, Industrial wastewater, with COD & BOD as high as 50,000 ppm & 10,000 ppm respectively, have been treated by our Reverse Osmosis (RO) membrane system.

Ultrapure water is used in Pharmaceutical industry, Semiconductor industry, Power industry, Solar power generation, electronics, medical, research and dialysis applications to name a few.

Ultrapure water systems are used to reduce or eliminate dissolved and suspended solids, biological organisms, dissolved gasses and organic carbon. This is critical in complying with required standards for different commercial and industrial applications.

Ultrapure water treatment uses appropriate processes for removing organic compounds in water, dissolved and suspended solids, organic carbon, dissolved gasses and biological organisms (e.g., bacteria, viruses, pyrogens).

Paramount Limited designs and integrates the various process steps depending on the ultra pure water requirements for the specific applications.

Paramount integrates the following processes depending on the raw water quality and the ultrapure water quality requirement based on the specific industry utility:

• Multigrade filtration for removal of suspended solids
• Membrane based filtration units (ultrafiltration/ microfiltration/ nanofiltration) for reduction of suspended solids, colloidal particles, and control of virus and bacteria
• Softeners for reduction of hardness
• Suitable chemical dosing arrangements to achieve disinfection of water, reduction of residual Chlorine, reduction of sparingly soluble salts etc
• Ultraviolet system for reduction of TOC
• Ultraviolet disinfection system
• Reverse Osmosis treatment
• Degassifiers
• Electro de-ionization as polishing system
• Mixed bed resin treatment

The salient features of Paramount integrated Ultrapure water treatment systems ensures,

• Reliability
• Clean operation
• Minimum possible effluent generation
• Minimization of chemical handling and use
• Excellent capacity of microbial reduction
• Continuous operation
• Ease of validation
• Compliance with FDA requirement

Paramount provides optimal and safe Ultra pure water storage and distribution system.

The prime necessity of Ultra pure storage & distribution system is to distribute the water to all user points in the plant without deterioration in the quality of Ultra pure water received from Generation system.

Following factors are considered in our design of Storage & Distribution system:

• Capacity of Ultra pure water generation system
• Peak load of the user points
• Return line minimum velocity required
• Elevation of the system and user points
• Pressure requirement at user points
• To maintain 1 Kg/Cm2 pressure in return line
• No. of User points
• Line size

The salient features of the Paramount design and supplied Ultrapure water Storage and distribution system are:

• High quality Tubes used for piping
• Carefully designed and sized Pumps for reliable and trouble free operation
• Storage tank is facilitated with Hot water sanitization jacketing
• Hydrophobic Vent Filter cartridge with heat traced vent filter housing
• Conductivity Transmitter is provided with dump valve
• No, or minimum possible dead legs
• Use of Zero Dead leg valves in place of Y loop with simple diaphragm valve
• Fully automated system PLC Panel with multi colour MMI for smooth operation and accurate record and with minimal or no human interference
• Multiple levels pass word (up to three levels) protection in all system settings provide a tamper proof setting
• All connections are Triclover end to avoid threaded connections