Shakunth Aqua Products

Vanagaram, Chennai, Tamil Nadu

An Energy Recovery System (ERS) is a critical component in modern seawater and brackish water Reverse Osmosis (RO) desalination plants, designed to significantly reduce overall power consumption by recovering hydraulic energy from the high-pressure brine stream. Since high-pressure pumping is the largest energy cost in RO desalination, integrating an ERS dramatically enhances plant efficiency and lowers operational expenses.

ERS devices capture the unused energy in the RO reject water—which is still at high pressure—and transfer it back to the feed stream or to the high-pressure pump. This process reduces the load on the feed pump, minimizes energy wastage, and improves the plant’s overall specific energy consumption (SEC).

1. Pressure Exchangers (PX) / Isobaric Chambers

   • Most efficient (up to 98% energy recovery)

   • Directly transfers pressure from brine to feed water

   • Low maintenance and suitable for large desalination plants

2. Turbochargers / Hydroturbines

   • Recover energy through a turbine mechanism

   • Suitable for medium- and small-scale plants

   • Moderate efficiency with simpler design

• Reduces Energy Consumption:
  Lowers operating energy by 30–60%, depending on plant capacity and ERS type.

• Lower Operating Costs:
  Significant reduction in electricity usage, reducing lifecycle cost of desalination.

• Improved RO Performance:
  Stabilized feed pressure increases membrane life and enhances permeate quality.

• Compact, Robust Design:
  High-grade materials (duplex steel, super duplex) ensure long life in seawater conditions.

• Environment Friendly:
  Reduces carbon footprint of desalination by improving energy efficiency.

• Low Maintenance:
  Few moving parts and long service cycles ensure high reliability.

• Large-scale SWRO desalination plants

• Containerized/mobile desalination units

• Industrial desalination systems

• Island resorts & remote communities

• Power plants & petrochemical industries

• Energy recovery efficiency up to 90–98% (Pressure Exchanger type)

• Reduces specific energy consumption to 2.8 – 3.5 kWh/m³ in SWRO systems

• Increases overall RO system stability and reliability

• Extends membrane and pump lifespan

Ultrafiltration (UF) is a pressure-driven membrane filtration process that removes suspended solids, colloids, turbidity, bacteria, and certain viruses from water. The UF membrane typically has a pore size of 0.010.04 microns, ensuring high-quality filtered water without altering the essential minerals.

A UF system uses hollow-fibre or spiral-wound membranes arranged in modules through which water is forced under low pressure. As water passes through the semi-permeable membrane, contaminants are retained while clean water (permeate) passes through.

• Removes turbidity, colour, suspended solids, and microorganisms

• Provides consistent permeate quality irrespective of feed water variations

• Requires no chemicals for routine operation (except for periodic cleaning)

• Compact, energy-efficient, and easy to operate

• Automatic backwashing and chemical cleaning options available

• Durable membrane modules with long service life

• Drinking water purification

• Pre-treatment for RO plants

• Industrial process water

• Wastewater polishing

• Community water supply systems

• Turbidity: < 0.1 NTU

• SDI: < 3

• Microbial removal: > 99.9%

An Auto Wiper UV System is an advanced ultraviolet disinfection unit designed to provide continuous and reliable microbial reduction in water without manual intervention. The system uses UV-C light (typically at 254 nm) to deactivate bacteria, viruses, and other pathogens, ensuring safe and hygienic water for consumption or process use.

To maintain peak UV efficiency, the system is equipped with an automatic mechanical wiper mechanism that periodically cleans the quartz sleeve surrounding the UV lamp. This prevents fouling caused by minerals, organics, and biofilm, ensuring consistent UV transmittance and reducing the need for manual cleaning.

• Automatic Quartz Sleeve Cleaning:
  Motorized wiper assembly cleans the quartz tube at set intervals, preventing scaling and improving UV efficiency.

• High-Intensity UV Lamps:
  Uses low-pressure or medium-pressure germicidal lamps delivering effective disinfection.

• No Chemicals Required:
  100% physical disinfection process with no by-products.

• SS304 / SS316 Construction:
  Corrosion-resistant, hygienic, and suitable for potable and industrial water applications.

• High UV Transmittance Quartz Sleeve:
  Ensures maximum penetration of UV light into the water.

• PLC Control :
  Automatic wiper operation with adjustable cleaning frequency.

• Low Maintenance:
  Minimizes manual cleaning and increases system uptime.

• Drinking water treatment

• Mineral water and packaged drinking water plants

• Food & beverage processing

• Pharma & healthcare water systems

• Industrial process water

• Pre/post RO disinfection

• Wastewater tertiary treatment

• Removes 99.99% (4-log) bacteria, viruses, and pathogens

• Maintains consistent UV intensity with auto-cleaning

• Suitable for low and medium UV transmittance waters

An Ozone Generator is an advanced disinfection and oxidation system used to purify water and air by producing ozone (O), a highly reactive and powerful oxidizing agent. Ozone effectively eliminates bacteria, viruses, algae, organic contaminants, colour, odour, and taste-causing compounds without leaving any chemical residue.

The generator produces ozone using either Corona Discharge (CD) or UV technology, with CD being the most efficient and widely used for industrial applications. The ozone is injected into the water through a Venturi or diffuser, ensuring maximum dissolution and effective treatment.

• High Oxidation Power:
  Ozone is 50 times more powerful than chlorine and works 3000 times faster for microbial disinfection.

• Corona Discharge (CD) Technology:
  Ensures high ozone output with low power consumption and long service life.

• Air Preparation Unit (Optional):
  Integrated moisture remover, oxygen concentrator, or air dryer to increase ozone purity and output efficiency.

• Stainless Steel / Powder-Coated MS Enclosure:
  Provides durability, corrosion resistance, and safe operation.

• Digital Controls & Indicators:
  Display for ozone output, voltage, current, and system status.

• Safety Interlocks:
  Built-in protections against over-voltage, over-current, and overheating.

• No Chemical Residue:
  Ozone decomposes back into oxygen, ensuring environmentally safe treatment.

• Drinking water disinfection

• Swimming pools and aquaculture

• RO permeate/post-treatment

• Food & beverage sanitization

• Industrial wastewater colour & odour removal

• Cooling tower treatment

• Air sterilization and odour control

• Effective removal of bacteria, viruses, algae, and harmful microorganisms

• Oxidizes iron, manganese, sulphides, and organics

• Eliminates odour and improves taste

• Enhances overall water quality without chemical addition

A Belt Type Oil Skimmer is a mechanical oil-removal device designed to efficiently separate and collect floating oil, grease, and other hydrocarbons from the surface of water or coolant tanks. It operates using a continuous loop belt made of oil-attracting (oleophilic) material that rotates through the liquid surface, collects the floating oil, and removes it using wiper blades.

The system is highly effective for removing tramp oil from machine coolant, oily wastewater, effluent treatment plants (ETPs), and industrial process tanks, helping extend coolant life, reduce bacterial growth, and improve downstream treatment efficiency.

• Oleophilic Belt Material:
  The belt selectively attracts oil while rejecting water, ensuring high oil recovery with minimal water drag.

• Continuous Operation:
  The rotating belt lifts oil to the skimmer head, where scraper blades efficiently remove and discharge it.

• Durable Construction:
  Available in SS304, MS powder-coated, or customized materials for corrosive environments.

• Adjustable Belt Length:
  Suitable for tanks, pits, sumps, and coolant reservoirs of varying depths.

• Low Maintenance:
  Simple design with minimal moving parts ensures reliable and long-term operation.

• Energy Efficient:
  Operates with low power consumption, making it ideal for continuous use.

• CNC machines & coolant tanks

• Industrial wastewater treatment (ETP/STP)

• Oil-water separators

• Automobile and machining industries

• Food processing units

• Parts washing machines

• Zero Liquid Discharge (ZLD) systems

• Effectively removes floating oil, grease, and hydrocarbons

• Reduces coolant contamination and bacterial growth

• Enhances treatment efficiency for downstream processes

• Improves overall water quality and reduces maintenance cost

A Cartridge Filter Housing is a pressure vessel designed to hold one or multiple filter cartridges for the removal of suspended solids, turbidity, fine particles, and microbial contaminants from water and process fluids. It is commonly used as a pre-filtration or polishing step in water treatment systems to protect downstream equipment such as RO membranes, UV systems, pumps, and process pipelines.

The housing is designed to accommodate various cartridge typessuch as PP spun, melt-blown, pleated, activated carbon, or string-wound cartridgesin sizes typically ranging from 10, 20, 30, to 40 length. It ensures safe and leak-free filtration while maintaining high flow rates and low pressure drop.

• Robust Construction:
  Available in SS304, SS316, MS Epoxy-coated, FRP, or UPVC based on application and water quality.

• Single & Multi-Cartridge Options:
  From 1 cartridge upto 3, 5, 7, 10, 12, 15, 20 &30 cartridges for higher flow requirements.

• Hygienic Design:
  To Suit code-7 cartridges Polished internal and external surfaces (in SS models) to meet drinking water and industrial standards.

• Easy Cartridge Replacement:
  Quick-open clamp or bolt-type closure for fast servicing and maintenance.

• High Pressure Rating:
  Options available in 3 kg/cm, 5 kg/cm, 10 kg/cm and above.

• Various End Connections:
  Flanged, threaded (BSP/NPT), or victaulic connections for easy integration.

• RO plant pre-filtration

• Drinking water systems

• Packaged drinking water industry

• Food & beverage processing

• Pharmaceuticals & healthcare

• Chemical & petrochemical industries

• Swimming pools and aquaculture

• General industrial filtration

• Removes fine particles up to 150 microns depending on cartridge selection

• Ensures low SDI (Silt Density Index) for RO feed

• Protects downstream equipment and increases system life

• Provides consistent flow with minimal pressure drop

• Suitable for both low- and high-turbidity waters