HS-FSHB RO Series RO Seawater Desalination System

HS-FSHB Series RO Seawater Desalination System

Description

The seawater desalination equipment is designed for fisher, steamship and coastland where lack of freshwater. This equipment can make seawater get rid of mineral, organism, bacteria and many others, become ultra clean and clear freshwater which meets the national drinking water quality standard. This pre-filtration system complete the large flow backwashing and washing procedure full automatic by adopting the most advanced full automatic multiport valves. All pipes made of resistant material, so that the whole system can use a long time. RO system has adopted advanced RO system components and high-quality membranes elements, and has designed according to the equipment’s output combining with unique efficient technology so that the system can save much energy. With advanced inspection and monitoring system, the system can present precise information about the operation system and make sure the whole system operate stably and safely.

Main Configuration

HS-FSHB Series RO Seawater Desalination System
10T RO Seawater Desalination Equipment	20T Seawater Desalination Device	30T Marine Fresh Water Generator
40T Reverse Osmosis Seawater Desalination Plant	50T Portable Seawater Desalination Plant	60T Desalination Facility

Technical Specifications

Model	HS-FSHB
	10	20	30	40	50	60
Raw water	≤40000mg/L	≤36000mg/L	≤36000mg/L	≤36000mg/L	≤36000mg/L	≤36000mg/L
Inlet temperature	5～45℃	5～45℃	5～45℃	5～45℃	5～45℃	5～45℃
Inlet flow	2m³/h	2.60m³/h	4.47m³/h	5.2m³/h	5.96m³/h	6.25m³/h
Product flow (Optional)	10m³/D	20m³/D	30m³/D	40m³/D	50m³/D	60m³/D
Rejection	≥99.5%	≥99.5%	≥99.5%	≥99.5%	≥99.5%	≥99.5%
Product quality	≤700mg/L	≤700mg/L	≤500mg/L	≤700mg/L	≤700mg/L	≤700mg/L
Operating pressure	＜6.5MPa	＜6.5MPa	＜6.5MPa	＜6.5MPa	＜6.5MPa	＜6.5MPa
Voltage	380V/50Hz/three-phase (Other voltage optional)
Environment temperature	0～45℃	0～45℃	0～45℃	0～45℃	0～45℃	0～45℃
Air humidity	20～90%	20～90%	20～90%	20～90%	20～90%	20～90%

Process Flow Diagram

System Components

(1)Feed pump: Providing backwash and rinsing engine for multi medium filter and precision filter.

(2)Multi medium filters: The function of multi medium filter is to guarantee the entire alga, specially the suspended solid, minerals, metals and many other large particulate get rid of the original water .The filter can reduce the pollution index of the original water which can meet the RO system’s long term requirement .

(3)Precision Filter: In order to prevent the material leakage in filter and left suspended solid from entering the membrane system before water enter reverse osmosis equipment through passing activated carbon filter, a security filter should be set ahead of the membrane system.

(4)Reverse osmosis system: RO system is the central desalination unit in this system, almost all soluble salt, colloid, organics and microbe will be cleaned out by applying the RO membrane’s peculiarity.

(5)Rinse system: Ro system after running chronically, It can be polluted by some substances rinse out hardly. Micro-salt and organics scale chronically to make film performance decline, operating pressure go up, so system must be rinse with chemical agent, so that it return to normal.

Methods to Prevent Fouling of Seawater Desalination Equipment

The long-term use of seawater desalination equipment will cause internal scaling and affect the water yield. We can prevent this problem in the following three ways.

1.Adding acid: adding acid is an effective method to control the scaling of CaCO3teshufeuh. According to the calculation software, the Stiff-Davis exponent in concentrated water is a positive number. This indicates that there is a tendency for CaCO3 scaling. If the Stiff-Davis index is negative, there is no fouling tendency. Acidification does not prevent the deposition of other dispersible dissolved salts (CaSO4, BaSO4, etc.). In most cases, special or food grade sulfuric acid is recommended when pH adjustment of reverse osmosis feed water is required.

2.Adding scale inhibitor/dispersant: The inorganic salt sodium hexametaphosphate (SHMP) is a commonly used scale inhibitor to prevent the deposition of CaCO3 and CaSO4. Many new composite scale inhibitors. The deposition of inorganic salts can be prevented. The specific needs to be selected according to the calculation software of each scale inhibitor manufacturer.

3.Simultaneous use of acid and scale inhibitor: The simultaneous use of acid and scale inhibitor includes two situations; when the pH of the produced water meets the expected requirements, and the scale inhibitor needs to be added according to the water quality. When the scaling tendency of CaCO3 is serious.

IACS Certificate Options: BV, CCS, NK, DNV, GL, IRS, ABS, LR, RMRS, RINA