Presentation on theme: "Membrane Filtration Units for Industrial & Domestic Applications We Care Our Customer."— Presentation transcript:
Membrane Filtration Units for Industrial & Domestic Applications We Care Our Customer
Membrane Filtration Applications Ultra filtration Membranes - Removal of Turbidity, Bacteria and Viruses, with Pre-filtration and Post filtration other contaminants can also be removed. Reverse Osmosis Membranes - Removal of Salts and other ions.
Absolute System Integrator Strong Engineering Team for Technology Research and Procurement Highly Trained Staff Strong Reliance on Engineering Strong Partnerships with Original Equipment Manufacturers (OEM) Export Based Manufacturing Systems Acknowledged as Manufacturer of WFP by Engineering Development Board
Aqua Refine Pro with Pre-Filtration Standard capacities of 2m3/hr & 4m3/hr drinking water customizable for other production capacities. Designs available for upto 2.0 IMGD plants. Depth Filtration through sand filters to remove turbidity. Taste & Odor treatment through granular activated carbon filters (GAC) Arsenic removal through absorption by Granular Ferric Hydroxide (GFH) media. Fluoride removal through Active Alumina media. Nitrate removal through Cationic Ion Exchange Resin Media Hardness Control System through Anionic Ion Exchange Resin media Bacteriological Contamination through Ultra Filtration membrane certified for 99.99% (Log4) virus removal and 99.9999% (Log6) bacteria removal. Online disinfection through Sodium Hypo-chloride injection (optional) PAC /PLC controlled operation of whole plant including backwashing of whole system. Mimic on plant for operator assistance. Remote monitoring of whole system over GPRS/GSM networks Standardized reporting software module. All the components certified to NSF / KIWA / CE
Design Criterion - Strong Reliance on Engineering System Requirements Capacity (Quantity) Installation Type (Mobile or Fixed) Output requirement (Quality) Selection of UF Membranes Encased or submerged Membrane Material Hydrophilic / hydrophobic Structure for strength (Single bore / multiple bore) Production methodology (Single continuous body, Double skin) Mode of operation (Inside-out / outside in) Cross Flow / Dead End Cleaning processes Backwash (Top/Bottom), Forward Flush (Top/Bottom), CEB, CIP.
Design Criterion - Strong Reliance on Engineering Selection of UF Membranes (continued) Performance Characteristics Flux Recovery Membrane Area Particle Rejection (LRV of Viruses / Bacteria) ANSI/NSF + KIWA/IWW Certifications and quality control methodology Selection of Media (Sand, Carbon, Activated Alumina, Granular Hydroxide, Ion exchange) Removal Capabilities Life of Media Quantity of media Hydraulic / Mechanical Design Pressure losses Power consumption Reliability Automation Requirement Batch / On demand Operation Plant Operation Processes Scada / Remote Monitoring Operator less
Pore Size vs Virus / Bacteria Size Smallest Water Borne Bacteria Smallest Water Borne Virus
Ultra Filtration Process Flow Diagram
Three paths to fresh water. KSB provides reliable solutions to support all three standard methods of extracting fresh water from the sea: 1. RO (Reverse Osmosis) pumps seawater at very high pressure through selectively permeable membranes, separating salts from the water. 2. MSF (Multistage Flash) is a rapid evaporation process, in which seawater is flashed-heated into steam and condensed. 3. MED (Multiple Effect Distillation) passes seawater through evaporators in multiple stages which is systematically condensed at low temperatures and pressures. Whatever method is applied, KSB is able to leverage extensive experience in the energy field to optimize operations, maximize performance and ensure the lowest costs for energy and maintenance.
Inge Module - cut - off module body
Modular, standardized design economies of scale Easily scalable Extremely compact design Integrated module - rack design One stop solution Plug 'n play assembly at site Operation of each row as separate filtration line possible
Efficient RO for reliable drinking water.
RO - Feed Water Limiting ConditionsRO - Role of Pre-treatment Oxidizing agents like chlorine COD & BOD within limits Oil & Grease Nil SDI Less than 5 pH range from 3 to 11 Turbidity less than 1 To reduce particulates & Improve SDI Clarification / Filtration Polymer / coagulant addition Micro Filtration Minimize scaling & fouling Softening Acid & anti scalant addition Anti scalant addition Chlorine Removal Carbon filtration Bisulfide addition Minimize Silica Scaling Antiscalant addition Softening & pH Control Turbo circulator Controlling Organic Dissolved Organic Colloidal Organic RO - Terminology Feed - Product / Permeate - Brine Reject Recovery = Product Flow / Feed Flow Salt Passage = Product TDS / Feed TDS Salt Rejection = 100% - Salt Passage in %
RO - System Components Pre-treatment Clarification Coagulation Filtration / Ultra filtration De-chlorination Dosing System (anti scalant, etc.) Cartridge filter RO Membrane System Membranes Pressure Tubes High Pressure Pump Energy Recovery System Control Panel Cleaning System Tank Filter Pump Post Treatment DM Plant pH adjustment Degasification Raw feed water to supply water to the pre-treatment Pre-treatment for turbidity, TSS, colloidal particle & organics UF/Cartridge filter to remove ultra small particles to control SDI (Silt Density Index) Anti scalant dosing system High pressure pump & feed control valve to pressurize the feed water to membranes Membranes are housed in FRP pressure vessels / tubes. A reject control valve to control the recovery of the system Flow indications to measure permeate & reject flow Pressure gauges/sensors to measure the quality of permeate water Cleaning system consisting of tank, CF, pump Operating Parameters: Feed - Pressure, Concentration, pH, temperature. Permeate - Concentration, Flow, pressure Reject - Flow, Pressure, concentration Instrumentation used: pH meter, Conductivity meter, Rota meter, Pressure gauges, ORP meter, Level switches, Pressure Switches, Electrical controls.
RO - Fouling / Scaling Fouling Types Scaling from Hardness Salts Scaling by Silica Fouling by Metal Oxides Plugging by suspended solids Biological fouling Scaling The deposition of sparingly soluble salts onto the membrane surface and / or feed channel material Scaling occurs primarily in the down stream elements because of the high concentrations existing in this portion of the RO system Common scalants include Calcium Sulphate, silica, and Calcium Carbonate
Energy recovering strategies: Comparison of efficiencies 100 % spec. Energy consumption without ERS ~64 % spec. Energy consumption with Turbine – ERS Efficiency of Turbine System: 80 - 88% Further Reduction of specific Energy Consumption Turbine- Isobaric ~47 % spec. Energy consumption with Isobaric ERS Efficiency of Isobaric ERS: 92 - 96% Conclusion: Lowest Energy Consumption with Isobaric ERS
AquaRefine UF Series
KSB Large Scale Saltec System
KSB Experience - SWRO SingaporeCyprusSharmulShaikh Test Lab, Frankenthal CDWA Project Malta