Specifications

1.Highly automated
2.Easy maintenance
3.Less excess sludge
4.Low cost

Description

 Rely on national standard GB19298-2003 china drinking water sanitary standard,aim at user water quality condition , based on design reasonable,effluent water qualified, work continuous,steady,minimum investment,convenient operating maintenance principle, make 2t/h RO plant.

Design standard

Raw water : ground water

Water yield 2m3/h, operation time: 12h per day, desalting rate ≥95%, recovery 75%,

Raw water conductivity ≤1000us/cm,the output cleaning water standard electrical conductivity 2us/cm-5 us/cm.

Raw Water pretreatment part
Raw water contains many impurities, such as suspended substance,

colloid, organic and inorganic matter. In order to ensure the system

reverse osmosis preliminary desalination part of the normal operation,

you must first remove the suspended solids in water, colloid, organic

matter, etc., so that meet the requirements of the reverse osmosis water, so the system Settings of raw water pretreatment. Raw water pretreatment part includes mechanical filter, activated carbon filter, softener,

security filter.
(1)Mechanical filter  Reverse osmosis equipment to the water

 turbidity have higher requirements, especially the reverse osmosis water pollution index for SDI value is less than 4, turbidity less than 1 ntu.

Many medium filter of the filter material, including five types of quartz

sand, used to remove the suspended solids and the stability of raw

water off the colloid
(2)Active Carbon Filter 

Reverse osmosis equipment requirement logged residual chlorine content is less than 0.1 mg/l, so using activated carbon filter removal raw water of residual chlorine, prevent reverse osmosis membrane polluted. At the same time can be further raw water adsorption of organic matter. Activated carbon filter and fill in the refined shell type activated carbon for adsorption raw water of residual chlorine, organic matter, part of the pigment and harmful material, educe the chemical oxygen consumption COD. Activated carbon is widely used in water for life and food industrial water purification, due to the effect of the specific surface area is very big, the surface and was full of average for twenty - 30 angstrom micro hole, therefore, activated carbon has the very high adsorption capacity.

(3)Softener  

Using sodium ion exchange resin will raw water of

calcium and magnesium ion replacement out, after the equipment after

 out for hardness very low softening water. When the resin adsorption to a certain amount of calcium and magnesium ions, must be regenerated: saturated brine soak resin the resin of calcium and magnesium in the

plasma and replacement out, restore resin softening exchange capacity, and will waste discharge. The regeneration process include: backwashing - loose resin layer, suction salt regeneration - happen exchange

reaction, flushing (is wash) - will chemical reaction exchange down of

calcium and magnesium ions rinse, water injection - to the next

regeneration
(4)Security Filter  

The security filter belong to micro filter

equipment, in the pretreatment system up insurance effect, when

mechanical filter working condition not normal when checks, to ensure

that all cases can provide qualified water supply pipeline, prevent the

water and the particle enters the water pump and reverse osmosis

system, especially set up security filter as the final filter unit.When filter in and out of the

differential pressure greater than 0.1 Mpa to replace filter (caused by the filter medium directly into the microporous membrane filter in the gap,

so that it is difficult to through the acid and alkali cleaning recovery

throughput). Filter structure can meet the requirements of rapid change

filter
3,Reverse osmosis desalination part 
The water contains all kinds of inorganic salt, with the usual filter cannot be removed, but with the traditional ion exchange method purify, are

faced with alkali consumption, regeneration cycle is short, the workers

labor intensity and serious environmental pollution and so on, and

reverse osmosis technology is nearly over twenty years emerging high

 technology and new technology, it used reverse osmosis principle, using a highly selective permeability of the reverse osmosis membrane, can make the water of the inorganic salt removal rate reached 98%. So it

has simple operation, low energy consumption, no pollution, etc., and in the preparation of pure water can be widely used. Reverse osmosis

desalination system

structure and function: 
(1)High Pressure Pump   High pressure pump is designed to ake the reverse osmosis water reaches a certain pressure, let the

reverse osmosis process are to be carried out, which overcome the

 osmotic pressure water molecules through the reverse osmosis

membrane to fresh water layer
(2)Reverse osmosis membrane element and pressure vessel  

 The reverse osmosis device can purify the water most of the inorganic salt, particles, bacteria, viruses and other soluble substances, etc.Reverse

osmosis membrane element in U.S. Hyde can company produces the CPA3 high desalination rate bottom pressure film, made of aromatic polyamide composite membrane.The use of membrane element condition is: the highest temperature

45 oc, pH range of 3.0-10.0, the highest operating pressure 4.14 MPa, the biggest pressure loss is 0.07, the highest water pollution index Map SDI for 5 he highest water turbidity 1.0 NTU, fill the highest residual chlorine content 0.1 PPM, single concentrated water and through the flow of water ratio of 5:1.n normal circumstances, the membrane element average service life for three years.

The membrane element design work pressure is 1.4-1.7 within the scope of the Map. Pressure vessel is the reverse osmosis membrane element to provide working pressure environment shell, using glass fiber reinforced plastic 8 "- 2 w pressure container, rated working pressure of 120 psi, i.e., 0.9 Mpa, a root pressure container can hold two root reverse osmosis membrane element.
(3)Automatic Backwash Installation 

Reverse osmosis in the operation of the process, the enrichment process and concentration polarization will lead to membrane surface contact with the raw water content of solid concentration than raw water ontology concentration.Therefore equipped with automatic low pressure flushing device in the boot before and after stopping or continuous running a adjustable period after the reverse osmosis membrane for timing of low pressure flushing, will be attached to the membrane surface a small amount of pollutant washed away.Flushing is completed, the system automatically return to wash before starting the state.The reverse osmosis device with German production automatic low pressure flushing protection device, when the reverse osmosis boot the device happen automatically flush membrane action, to ensure that the membrane pollution to a minimum degree.

Detailed configuration:

seri	name	specification	place of origin	Qty	Remark
Pretreatment
1	Multi-media filter	φ500×1750 FRP tank	china	1
2	Activated carbon filter	φ500×1750 FRP tank	china	1
3	softener	scale inhibition	china	1
4	Quartz sand	20# refine	china	300Kg
5	Activated carbon	5-10#	china	150Kg
6	Water distributor, salt box  ,steel belt,fittings,manual operation multiway head
main body
1	Precision filter	20”(SS304)	china	1
	PPR filter element	1000×6	China brand	5
2	high-pressure pump	4.5kw	China CNP	1
		3kw	China CNP	1
3	RO membrane shell	FRP 8” ×3	China	2
		FRP 8” ×3	china	1
4	RO membrane	ESPA1-8040	China brand	5
		ESPA1-8040	China brand	3
5	conductivity meter	CM230	shanghai	2
6	flow meter	Z-300K6(20GPM)	china	4
7	oil charge pressure gage	0~400psi	china	4
8	pressure gage	0~100psi	china	1
9	pressure adjust gauges		china	2
10	solenoid valve	0927600	china	1
11	Timing wash		china	2
12	sampling valve		china	3
13	SS rack		china	1
Electrical control cabinet
1	AC contactor	LC1-D3810	China	3	Engineering plastics,alloy
2	thermal relay	LR2-D1316C	china	3	Engineering plastics,alloy
3	intermediate relay	MY4NJ	china	2	Engineering plastics,alloy
4	electrician accessory		china
Attach	Raw water pump	CHL4-50	CNP	1	Casting iron