Industry Overview
Reverse Osmosis (RO) is a water purification technology used to remove a large majority of dissolved inorganic solids, salts, and other contaminants from water. The process works by applying pressure to water and forcing it through a semi-permeable membrane, allowing water molecules to pass while restricting many dissolved substances. RO is based on the naturally occurring phenomenon of osmosis, in which water tends to migrate through a semi-permeable membrane from a solution of lower concentration toward one of higher concentration.
Reverse Osmosis reverses this natural process by applying external pressure to the more concentrated solution, enabling purified water to pass through the membrane. The technology is widely associated with membrane-based separation processes and includes different membrane configurations and materials, such as cellulose acetate and thin film composite membranes. The project covers the preparation of supporting membranes, polyamide active layers, membrane post-treatment, coating processes, spiral-wound membrane cartridge assembly, testing, marking, and packing. It also addresses plant layout, location factors, project implementation, market position, suppliers, and project economics for a plant capacity of 1800 Nos/day.
Cost Estimation
| Particulars | Value |
|---|---|
| Plant Capacity | 1800 Nos/day |
| Land & Building (4047 Sq.MT) | Rs. 2.28 Cr |
| Plant & Machinery | Rs. 2.25 Cr |
| Working Capital for 2 Month | Rs 1.56 Cr |
| Total Capital Investment | Rs. 6.45 Cr |
| Rate of Return | 39% |
| Break Even Point | 56% |
Content Index
- INTRODUCTION
- STAGES OF FILTRATION
- STORAGE TANK
- TYPES OF MEMBRANE PROCESSES
- (A) ULTRAFILTRATION
- (B) MICROFILTRATION MICRO FILTRATION
- (C) REVERSE OSMOSIS
- RO IS ALSO KNOWN AS HYPERFILTRATION
- TYPES OF REVERSE OSMOSIS MEMBRANE
- (A) ASYMMETRIC MEMBRANE - CELLULOSE ACETATE (CA) MEMBRANE
- MEMBRANE PREPARATION:
- CELLULOSE ACETATE MEMBRANE FILTER APPLICATIONS
- CELLULOSE ACETATE MEMBRANE FILTER SPECIFICATIONS
- PERFORMANCE BY PORE SIZE
- (B) THIN FILM COMPOSITE MEMBRAN:-
- CONSTRUCTION
- SPIRAL WOUND MODULE
- CONSTRUCTION
- HOW IT WORKS
- DISADVANTAGES
- ADVANTAGES
- ADVANTAGES
- DISADVANTAGE
- USES AND APPLICATION
- B.I.S. SPECIFICATION
- PROCESS FLOW CHART
- MANUFACTURING PROCESS
- MANUFACTURING OF FOR THIN FILM COMPOSITE MEMBRANE ELEMENT
- RAW MATERIALS:
- MANUFACTURING PROCESS
- THERE ARE THE MAIN THREE STEPS FOR MAKING TFC MEMBRANE
- THE TECHNOLOGY FOR PREPARATION OF COMPOSITE POLYAMIDE REVERSE OSMOSIS (RO) MEMBRANE INVOLVES VARIOUS STEPS:
- (1) PREPARATION OF CASTING SOLUTION (PSF SOL)
- (2) PHASE INVERSION METHOD FOR PREPARATION SUPPORTING MEMBRANE (LAYER) (CASTING PROCESS)
- IMMERSION PRECIPITATION 31
- FACTORS AFFECTING MEMBRANE STRUCTURE
- (A) ADDITION OF SOLVENT TO THE COAGULATION BATH
- (B) POLYMER CONCENTRATION
- (C) ADDITION OF NON-SOLVENT TO THE CASTING SOLUTION
- (D) EVAPORATION TIME
- (E) PORE-FORMING ADDITIVES
- MEMBRANE POST-TREATMENT
- (A) ANNEALING
- (B) CROSS LINKING
- (C) DRYING BY SOLVENT EXCHANGE
- (3) PREPARATION OF POLYAMIDE ACTIVE LAYER (COATING PROCESS) ON SUPPORT LAYER
- COATING PROCESS
- (A) DIP COATING
- (B) INTERFACIAL POLYMERISATION
- (4) ASSEMBLING PROCESS OF SPIRAL WOUND MEMBRANE CARTRIDGE
- TESTING 39
- HYDROSTATIC TEST
- MARKING
- PACKING
- MARKET POSITION
- GLOBAL MARKET TREND
- KEY MARKET PLAYERS
- PLANT LAYOUT
- PRINCIPLES OF PLANT LAYOUT
- MAJOR PROVISIONS IN ROAD PLANNING FOR MULTIPURPOSE SERVICE ARE:
- PLANT LOCATION FACTORS
- PRIMARY FACTORS
- 1. RAW-MATERIAL SUPPLY:
- 2. MARKETS:
- 3. POWER AND FUEL SUPPLY:
- 4. WATER SUPPLY:
- 5. CLIMATE:
- 6. TRANSPORTATION:
- 7. WASTE DISPOSAL:
- 8. LABOR:
- 9. REGULATORY LAWS:
- 10. TAXES:
- 11. SITE CHARACTERISTICS:
- 12. COMMUNITY FACTORS:
- 13. VULNERABILITY TO WARTIME ATTACK:
- 14. FLOOD AND FIRE CONTROL:
- EXPLANATION OF TERMS USED IN THE PROJECT REPORT
- 1. DEPRECIATION:
- 2. FIXED ASSETS:
- 3. WORKING CAPITAL:
- 4. BREAK-EVEN POINT:
- 5. OTHER FIXED EXPENSES:
- 6. MARGIN MONEY:
- 8. TOTAL LOAD:
- 9. LAND AREA/MAN POWER RATIO:
- PROJECT IMPLEMENTATION SCHEDULES
- INTRODUCTION
- PROJECT HANDLING
- PROJECT SCHEDULING
- PROJECT CONSTRUCTION SCHEDULE
- TIME SCHEDULE
- SUPPLIERS OF TFC RO MEMBRANE
- SUPPLIERS OF RAW MATERIALS
- SUPPLIERS OF POLY SULPHONE
- SUPPLIERS OF N-METHYL PYRROLIDONE
- SUPPLIERS OF NON-WOVEN POLYSTER FABRIC
- SUPPLIERS OF TRI METHYL CLORIDE
- SUPPLIERS OF PLANT AND MACHINERY
- SUPPLIERS OF TFC RO MEMBRANE MAKING MACHINE
- SUPPLIERS OF SPIRAL WOUND MEMBRANE ASSEMBLING PLANT
- SUPPLIERS PF POLY SULPHONE CASTING AND COATING MACHINE
- SUPPLIERS OF MEMBRANE LAB TEST EQUIPMENT
- SUPPLIERS OF POWER TRANSFORMERS
- SUPPLIERS OF ELECTRICAL PANEL
- SUPPLIERS OF COOLING TOWER
- SUPPLIERS OF EFFULENT TREATMENT PLANT (ETP PLANT)
- SUPPLIERS OF AIR POLLUTION CONTROL EQUIPMENTS
- SUPPLIERS OF AIR CONDITIONING EQUIPMENTS
- SUPPLIERS OF AIR COMPRESSORS
- SUPPLIERS OF PLATFORM WEIGHING MACHINE
- SUPPLIERS OF MATERIAL HANDLING EQUIPMENTS
- SUPPLIERS OF FIRE FIGHTING EQUIPMENTS
- SUPPLIERS OF JIGS AND FIXTURE
- SUPPLIERS OF SUBMERSIBLE WATER PUMP
Appendix
- 1. COST OF PLANT ECONOMICS
- 2. LAND & BUILDING
- 3. PLANT AND MACHINERY
- 4. FIXED CAPITAL INVESTMENT
- 5. RAW MATERIAL
- 6. SALARY AND WAGES
- 7. UTILITIES AND OVERHEADS
- 8. TOTAL WORKING CAPITAL
- 9. COST OF PRODUCTION
- 10. PROFITABILITY ANALYSIS
- 11. BREAK EVEN POINT
- 12. RESOURCES OF FINANCE
- 13. INTEREST CHART
- 14. DEPRECIATION CHART
- 15. CASH FLOW STATEMENT
- 16. PROJECTED BALANCE SHEET
Frequently Asked Questions
Reverse Osmosis is a membrane-based water purification process that uses pressure to separate water from many dissolved contaminants. Water is forced through a semi-permeable membrane, which permits water molecules to pass while restricting many dissolved salts and other substances. The process reverses the natural direction of osmosis by applying external pressure to the more concentrated solution. RO is therefore widely used where removal of dissolved solids and other contaminants is required.
The principal membrane processes discussed are ultrafiltration, microfiltration, and Reverse Osmosis. These processes differ in membrane characteristics and separation capabilities. Ultrafiltration and microfiltration are generally used for removing different classes of suspended or larger contaminants, while RO provides a much finer separation suitable for reducing dissolved salts and other small contaminants. Selection depends on feed-water quality, required treatment performance, and the intended application.
A Thin Film Composite (TFC) RO membrane consists of a thin active polyamide layer supported by a porous supporting membrane. The project describes preparation of the supporting layer, formation of the polyamide active layer, post-treatment, and assembly into spiral-wound membrane cartridges. The technology involves processes such as phase inversion for the support layer and interfacial polymerisation for the active layer. Proper control of membrane structure and processing conditions is important for achieving the required separation performance.
TFC RO membrane manufacturing uses polymeric and other process materials for preparing the supporting and active membrane layers. The report specifically identifies materials and supplier categories including poly sulphone, N-methyl pyrrolidone, non-woven polyster fabric, and tri methyl cloride. The exact material requirements depend on the selected membrane formulation and manufacturing technology. Consistent raw-material quality is important because membrane structure, mechanical properties, permeability, and separation performance can be influenced by formulation and processing conditions.
The major steps include preparation of the supporting membrane, formation of the polyamide active layer, post-treatment, assembly, and testing. The report describes preparation of the casting solution, phase inversion and casting of the supporting layer, membrane post-treatment, and coating of the support layer. Interfacial polymerisation is included among the coating methods. The completed membrane is then assembled into a spiral-wound cartridge and subjected to testing, followed by marking and packing.
A well-planned plant layout helps organize manufacturing operations, material movement, utilities, equipment, storage, and supporting facilities efficiently. The report covers principles of plant layout and provisions for multipurpose service areas. Effective layout planning can help reduce unnecessary movement, support smoother production flows, improve workplace organization, and provide appropriate access to utilities and safety facilities. Plant location considerations also include raw-material supply, markets, power and fuel, water, transportation, waste disposal, labor, regulatory laws, taxes, site characteristics, and community factors.
The report covers suppliers for membrane manufacturing machinery, assembly equipment, laboratory equipment, utilities, electrical systems, and supporting plant facilities. Supplier categories include TFC RO membrane making machines, spiral wound membrane assembling plants, poly sulphone casting and coating machines, membrane lab test equipment, power transformers, electrical panels, cooling towers, ETP plants, air pollution control equipment, air conditioning equipment, air compressors, weighing machines, material handling equipment, fire fighting equipment, jigs and fixtures, and submersible water pumps. These categories support both core manufacturing and auxiliary plant operations.
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