Why Desalination:

The modern world is behest with additional human needs and demands better quality in all walks of life. Technology is continuously adapted to this growing need with a scarcity of natural resources to cater the ever growing population. Earth has one-fourth of its area covered by land mass with the rest being the vast expanse of sea. It is hence imperative to tap this large available resource to cater the needs of the expanding cities and other population centers. Providing an adequate and reliable source of good quality water has become an important mandate, with desalination a key part of the solution.

Principle of Operation:

Paramount Limited adopts the utility of integrated membrane process in removing the high dissolved solids (dissolved salts as in general terminology) from sea water or brackish water from underground aquifers to produce process water for industrial utility or drinkable water for community purposes.

Paramount Limited is adapted to select the most appropriate design requirement from the place where the sea water/ brackish water is pumped for treatment and takes care of the design of the entire pretreatment steps, RO (Reverse Osmosis) unit, post treatment steps and reject management of water. Paramount Limited has developed infrastructure and strategic alliances to manufacture superior quality of the critical components and equipments of the treatment units at its work shop.

Pre Treatment:

Sea water from its intake facility (after pump house) is screened of large solid matter prior to pre-treatment for removal of suspended solids and correction of pH. We provide Reaction clarifier / Lamella clarifiers / Dissolved air flotation / High Rate Solid Contact Clarifier (HRSCC) for removal of suspended solids from intake water depending on the system requirement/ client preference. An additional step of filtration (Pressure Sand Filter / Dual Media Filter / Multi Media Filter followed by Activated Carbon Filters is added. The water is passed through Micron Cartridge filters prior to passing through the membranes.

The design of filtration using Ultrafiltration (UF) methodology or Microfiltration (MF) methodology is adopted based on pilot plant trials to optimize the treatment steps keeping in mind the economy and ease of operation required.

Paramount Limited also offers Nano Filtration (NF)technology integrated into a desalination system – NFSWRO (Sea Water Reverse Osmosis The NF plant receives non-coagulated filtered seawater and reduces turbidity and microorganisms and hardness. The overall concentration of TDS (Total Dissolved Solids) is reduced by approx. 50%, producing permeate that is far superior to seawater as a feed to SWRO. This makes it possible to operate an SWRO plant at a high recovery rate. The high water output combined with a reduction of chemicals and energy (by about 25 – 30%) allows producing good quality water from seawater at a 20 – 25% lower cost compared to conventional SWRO.

RO Unit:

Two stage or two pass RO units are designed to maximize the recovery of water in the system. The modular design of the RO units is adopted to adapt to the varying capacity requirement and with an eye for future expansion requirements. Adequate and appropriate dosage of suitable chemicals is applied to avoid scaling and bio fouling of membranes thereby increasing sustained operation of the unit. Skid mounted CIP (chemical in place) units are the norms of Paramount Limited design to enable effective periodic cleaning of RO membranes. The chemical storage units are fabricated in the company’s work shop. Tanks with material of construction from mild steel to stainless steel are provided with accessories like agitators, pump skids, interconnecting piping, fittings to ensure superior quality and efficient use of resources.

Suitable energy recovery device is (if required) provided to recover the energy from the reject and thereby optimize the overall system energy consumption.

Post Treatment:

Permeate from RO modules is de-gassed and pH corrected in post treatment step. Re-mineralization of RO water is a required post–treatment step to make water drinkable. Adequate injection of chemicals allows calcium ions to re-create some hardness and alkalinity in the water to achieve the standards specified by the World Health Organization. A non-toxic, non-hazardous additive is preferred in potable water.