SEAWATER DESALINATION WATER TREATMENT DIVISION

Transcription

1 WATER TREATMENT DIVISION SEAWATER DESALINATION DESIGN, MANUFACTURING, SUPPLY AND CONSTRUCTION ON A TURNKEY BASIS OF THE WATER INDUSTRY OBJECTS FOR INDUSTRIAL ENTERPRISES

2 Seawater Desalination About company The company AGBOR Engineering, founded in 1985, is part of international group of the companies, known as «Water Group». It is one of the European leading companies in engineering and water treatment equipment manufacturing. The Company s main function is focused on solving processing water preparation problems. Inclusive in this function is: the production of quality drinking water, seawater desalination, industrial wastewater purification, closed cycles of water supplies and the production of cooling circuits. WATER GROUP consists of: AGBOR Engineering (UK) Water Group Ltd Oy (Finland) LLC AGBOR Engineering (Russia) FE AGBOR Engineering Ltd (Ukraine) 1 AGBOR Engineering

3 SEAWATER DESALINATION Seawater Desalination Seawater Desalination technologies Seawater Desalination is one of the most important processes which helps to prevent many problems in the future. Presently, at time of global and gradual reduction of water reserves, the problem of seawater desalination and water purification becomes quietly significant. Agbor Engineering is developing seawater desalination together with water and waste water treatment technologies. The most important desalination methods are: Thermal Desalination (Distillation) Desalination on the semipermeable membranes (Reverse Osmosis) Comparison of desalination methods: Thermal Desalination (MED, MSF) is a power-consuming process. Membrane Desalination (RO) is a power efficient process. Power consumption, kw*h/m 3 Steam Electric. Total MED 4,5 1,2-2,0 5,7-6,5 MSF 14 3,0-4, RO - 2,6-4,2 2,6-4,2 World Water Reserves A large saline water layer, that covers main part of the earth's surface, is the whole entity. It has approximately constant composition. The World Ocean is enormous. Its volume is 1,35 billion km 3. It covers approximately 72 % of the earth's surface. The World Ocean consists of almost all the water on the Earth (97 %). Approximately 2,1 % of water is concentrated in the polar ice and glaciers. 0,6 % consist of fresh water in lakes, rivers and ground water. The rest 0,1 % is saline water of drilled-wells and brackish waters. 2

4 About project AGBOR Engineering develops engineering and performs supply of complex desalination installation of Mediterranean Sea water for MMK-Atakas, metallurgical plant in Turkey. Available equipment and technology are suitable for water treatment, supply and disposal. Problem Data: Water-supply source Salt content of the source water Source water hardness Capacity requirement: UF RO 1-st stage RO 2-st stage sea water ppm 139 mg-eq/l m3/d m3/d m3/d Metallurgical plant MMK Atakash has two production areas in Turkey; one of them is situated in Iskenderun, and the other one in Istanbul. 3 AGBOR Engineering

5 SEAWATER DESALINATION Solution Technology is chosen by the following scheme: Seawater Ultrafiltation (2000 m3/h) Reverse Osmosis (1000 m3/h and 660 m3/h) Drainless Purification of chrome-, oil- and SSAS containing drains and equipment for dehydration. Process automation and construction solutions perform technological processes according to Seller s requirements. Customer s water supply is designed with such schemes of the reverse water supply, as: contact ( dirty ) and contactless ( clean ) cooling circuits. It prevents industrial waste disposal outside the complex. The project proposes 6 systems of contactless cooling. The systems are based on the principle of cooling water quality, input pressure, temperature and location. 4

6 Production Facility of Desalinated Water Preparation High pressure pumps unit Unit (1000 m3/h) 1st stage Reverse Osmosis 5 AGBOR Engineering

7 SEAWATER DESALINATION Production Facility of Desalinated Water Preparation 2-nd stage Reverse Osmosis Unit (660 m3/h) 6

8 Screen Filters Automatic self-cleaning filters, with nominal filtration value of 200 micron, are applied to prevent clogging and mechanical damages of the ultrafiltration membrane capillaries. Advantages: Cleaning without main flow interruption ; These filters are energy-independent; They don t require technical service; They have easy installation and operation. Ultrafiltration Ultrafiltration is the most efficient method of the surface and sea water clarification which is used before Reverse Osmosis installation. Utrafiltration is based on the principle of water filtration through the polymeric porous material. It delays suspended and colloid particles and transmits dissolved salts. Ultrafiltration has eight racks; each of them consists of 96 parallel membranes dizzer 5000 of Inge production. Reverse Osmosis Water desalination, performed by Reverse Osmosis, is based on the principle of water filtration through the polymeric material (membranes) at high pressure. Pore diameter of polymeric material delays dissolved salts: 1st stage of Reverse Osmosis has five units; each of them consists of 50 parallel high pressure housings. Each housing has six loaded membranes Hydranautics of 8040 standard. 2nd stage of Reverse Osmosis has three subunits; each of them consists of 28 parallel high pressure housings. Each housing has six loaded membranes Hydranautics of 8040 standard. Hydranautics (USA) is a worldwide leader of membrane manufacturing. 7 AGBOR Engineering

9 SEAWATER DESALINATION Pressure Exchanger (PX) Energy Recovery Inc. (ERI) is American company, a worldwide leader of energy-efficient devices manufacturing which are used for seawater desalination systems based on Reverse Osmosis technology. Energy saving is about 40 %. Membranes Purified water High pressure pump Booster pump Sea water PX Device Brine Balance diagram 2500 m3/h MF Screen filter 200 micron Open water intake 500 m3/h UF Ultrafiltration Inge 2000 m3/h 2120 m3/h 120 m 3 /h 1175 м3/ч RO1 Reverse osmosis Hydranautics 785 m3/h 160 m3/h RO2 Reverse osmosis Hydranautics 665 m3/h Into the sea 8

10 Reagents and energy consumption Parameter Source water, m 3 Flushing water, m 3 Brine, m 3 Purified water, m 3 Sodium hypochlorite, kg Sodium metabisulphite, kg Coagulant, kg Antiscalant, kg Sulfuric acid 96 %, kg Sodium hydroxide 44 %, kg Electrical capacity, kw Amount per month Water Consumption and Sewage Water Reagents for dosing and chemical flushing Energy consumption 4800 Water quality parameters Parameter Measuring Unit Data Filtrate Permeate 1 Permeate 2 Suspended particles TDS mgо 2 /dm pн Hardness mg-eq/dm Alcalinity mg-eq/dm Ferrum < 0.1 < Sodium Chlorides Sulfates Nitrates < 1 < Fluorides Boron AGBOR Engineering

11 SEAWATER DESALINATION 10

12 AGBOR Engineering (UK) SWANSEA Suite17, Princess House, Princess Way, SA1 3 Tel (0) Fax (0) enquiries@agbor-engineering.co.uk LW AGBOR Engineering Ltd (RUSSIA) WATER TREATMENT DIVISION MOSCOW 15b5 embankment Academican Tupolev Moscow, , Russia Tel./Fax +7 (495) info@agbor.ru TechnoChemReagentBel Ltd (BELARUS) GRODNO , Grodno 1, Vilenskaya Street Tel./Fax info@txr.by HydroTech Engineering Ltd (UKRAINE) DNIPROPETROVSK Molodogvardeiskaya Street, 45-B Dnipropetrovsk, Ukraine tel. +38 (056) (-16, -18) Tel./Fax +38 (056) E