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| BIONICS SEAPRO DESALINATION SYSTEMS (FQ-100 SERIES) |
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| INTRODUCTION |
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| The large and medium type Bionics Seapro Desalination Systems (FQ-100 series) seawater desalting equipment is suitable for island ,Seashore, tourist area and the lacked water city, it can effectively remove the inorganic salt from the seawater, heavy metal, organic bacterium and germ, it can turn the high quality water into national life drinking water standard, This set of system processing adopts the completely automatic multi combination valve, it comes true completely automatic great current capacity backlash, the brand-new shell of system, the pipeline adopts the endure-corrosive material, guaranteed complete set system durable. The RO system has adopted the most advanced RO system design software and the membrane software, according to produce the water volume union highly effective unique energy recycling technical design; it has guaranteed the system movement low energy consumption. |
| PROCESS EXPLAINATION & CONSTRUCTION DETAILS |
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The full desalination plant comprises the cation exchanger, anion exchanger and mixed bed filter as well as supply container with chloric acid (HCl) and caustic soda (NaOH). The cation exchanger contains the cations and supplies defined quantities to the nitrogen ions so that the anions are available behind the filter in the form of free acids. After depletion, the filters are usually regenerated with soda lye.
If fully desalinated water (deionate) is to be generated, the mixed bed filters are connected. Here, the cation and anion mass is also available as a mixture. Behind this filter, saltfree water is attained which has a conductivity of less than 0.2mS/cm and a silicic acid content of less then 0.02 mg/l.
A desalination installation consists of a pre-treatment system, a desalination unit and a subsequential treatment. A high-pressure pump increases the feed water pressure to the required workload. The workload is considerably higher than the osmotic pressure, in order to bring about a satisfactory flow through the membrane. A higher workload will result in a higher amount of treated water. A desalination installation
A high-pressure switch regulates the pressure within the membranes. The installation also contains flow meters and pressure meters for process regulation. Furthermore, there are a number of security measures such as a low-pressure switch and a conductivity meter with a security barrier.
The desalination unit in a desalination installation consists of a number of Reverse Osmosis membranes in several pressure vessels, which are placed in a certain order. The feed water that is pumped into the module will be separated into water with a low salt content and water with a high salt content.
The water with a low salt content is called ‘permeate’ and the water with a high salt content is called ‘concentrate’. The concentrate flow is regulated by a pressure vessel, which is placed within the concentrate. The pressure vessel regulates the percentage of feed water that leaves the module through the concentrate flow.
In a spiral module that consists of multiple membranes situated in a pressure vessel, the feed water flows within the pressure vessel, through the spiral channels of the element.
The spiral membranes in the pressure vessel that are interconnected will make sure that the feed water becomes more concentrated. When the concentrate passes through the last membrane, it will reach a pressure lid, which releases pressure.
The permeate of each membrane element is collected in a tube that is place centrally in each spiral membrane. Outside the pressure vessel a drain catches the permeate off the spiral membranes.
A specific benefit of spiral membrane units is the fact that they can be arranged serially within any pressure vessel. This means that the feed water flows through a membrane with one tubular system multiple times.
Hollow fiber units do not have this benefit, which means that they need separate drains for the feed water, the permeate and the concentrate. Hollow fiber installations that are built on a grand scale will have very high system costs, mainly for the built-up of the drainage system.
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| Click for Technical Specification |
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