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Submerged ultrafiltration membrane (SUF)

The submerged ultrafiltration membrane system adopts the following: 1. Open type external pressure ultrafiltration membrane module 2. Curtain type ultrafiltration membrane module. It is fully immersed in the membrane tank, through the liquid level pressure difference combined with suction pump negative pressure suction production, membrane components replace the traditional coagulation, sedimentation, filtration and other processes, widely used in municipal tap water quality upgrading, Municipal Reclaimed Water and reclaimed water reuse, river metallurgy, industrial wastewater reuse, seawater desalination and other fields.

Main membrane materials of submerged ultrafiltration membrane: the PVDF nano alloy + PET hollow fiber membrane developed by using the network structure technology formed by a variety of composite materials and special nano materials, has the characteristics of good anti pollution performance, large flux, smooth internal and external surface of membrane wire, high relative strength, and good recovery of cleaning flux.

1. Introduction to parameters of submerged column ultrafiltration membrane module:

Model			KJ-SUF6050-PVDF	KJ-SUF6050-PP
Performance	Membrane type		S ubmerged column ultrafiltration membrane module
	Max.influent turbidity		＜20NTU
	Max.influent particle		＜100μm
	Turbidity of produced water		＜0.5NTU/＜0.2NTU
Specifications	Type		External pressure type
	Type of membrane filament		PVDF	PP
	Intercepted molecular weight（Dalton）		80~100 thousand /50~80 thousand
	Relative membrane area		20m2	80m2
	Size(mm)		Long:1295X Diameter:165 (Maximum:280)
	Membrane Filament inner / outer diameter		2.2~2.4mm	0.38/0.48mm
Conditions of use	Design flux	Deep well water	1.2m3/h
		Surface water	0.9m3/h
		treated wastewater	0.6m3/h
	Max. transmembrane pressure difference		0.10Mpa/ 0.35Mpa
	Tolerance concentration of residual chlorine		5000ppm/100ppm
	PH		1～12/0～14
	Online cleaning mode		Water backwashing combined with air scrubbing
Process conditions	Backwash pressure		0~0.10Mpa	0~0.30Mpa 0~0.35Mpa
	Backwash flow: Design flux		1.5~2.5 （Advice 2.0）
	Design suction pressure		-0.10Mpa~0
	Backwash inlet gas volume		60～100m3/h·m2
	Chemical cleaning chemicals		HCl、NaClO+0.2%NaOH mixed liquid	HCl、NaOH

2.Submerged curtain type ultrafiltration membrane module

Parameter	Model	KJ-SUF-13	KJ-SUF2-13	KJ-SUF4390A	KJ-SUF3290A	KJ-SUF2590A-32
		KJ-SUF-17	KJ-SUF2-17
	Deep well water	0.7t/h	0.7t/h	2.5t/h	1.9t/h	1.9t/h
		1.0t/h	1.0t/h
	Surface water	0.55t/h	0.55t/h	1.9t/h	1.45t/h	1.45t/h
		0.75 t/h	0.75 t/h
	Treated wastewater	0.38t/h	0.38t/h	1.28t/h	1.0t/h	1.0t/h
		0.5t/h	0.5t/h
	Note: the above data are calculated by practical experience, which should be adjusted according to the actual situation.
	Size：W x L (mm)	655X1550	575X1550	1300X2000	1300X1510	1250X2000
		655x2050	575X2050
	Outlet type	DN15 Internal thread	DN15 Internal thread	DN20 Internal thread	DN20 Internal thread	DN15“U" Plug in type
	Effective membrane area （m2）	12.75	12.75	43.6	32.5	32.5
		17.30	17.30
	Shell material	ABS/UPVC	ABS/UPVC	ABS/UPVC	ABS/UPVC	ABS/SS304
	Membrane material	PVDF
	Filtration	0.1um	0.1um	0.1um	0.1um	0.1（0.4） um
	External diameter	2.2~2.4mm
	PH	1-12
Typical process conditions	Operation mode	Negative pressure suction
	Max.transmembrane pressure difference	-0.08MPa
	Max. backwash pressure	0.1MPa
	Chemical disinfectant	NaClO
	Chemical cleaning agent	Citric acid、NaOH、NaClO
Note: the technical parameters in the table are factory inspection values under standard conditions or calculated values from practical experience. Since different conditions and water quality will produce different effects, the values in this table are only for design reference;

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