Introduction
Submerged membrane filtration (SMF) technology is a new type of membrane technology. It is a new type of membrane filtration process in which ultra-low-pressure hollow-fiber membrane technology and continuous membrane filtration technology are combined together. It uses open-ended hollow fiber membrane elements, which put the membrane directly into the membrane tank that  is full of water, then go through the vacuum suction pump, use  atmospheric pressure, so that the surface water can  go through the membrane, get out from the inside, and the purpose of purification is achieved.
The  daily treatment capacity of the single membrane tank can reach more than 10,000 tons. The combination of more than one membrane and backwash operation can be adapted to different water conditions and scale, so that the control system of water treatment can be greatly simplified, and  the reliability is greatly improved. It is especially suited for large-scale water treatment work.
The technology can help hollow fiber membrane achieve on-line cleaning and online chemical enhancement cleaning, the elimination of membrane fouling and an effective restoration of membrane flux.The technology can achieve integral online test for the membrane. No matter when you have any problem  with membrane, it can be judged quickly and accurately, and can be easily isolated  and replace the membrane.
Submerged membrane filtration (SMF) technology is a research result from MOTIMO after many years’s  research of ultra-low-pressure membrane filter technology, development and  the accumulated experience  of practical application.It is an international advanced technology after the birth of CMF, MBR, TWF. Tianjin MOTIMO Membrane Technology CO.,Ltd. has the integral intellectual property rights on  technique.
 

Project	Raw water	Application
municipal sewage treatment and re-use	STP second class producing water	Landscape, irrigation, industrial production, toilet flushing and vehicles cleaning water
Deep treatment and re-use of Industrial waste water	STP second class producing water Circulating and cooling industrial water	Make industry process water process water cooling circulating water etc.
Industrial water treatment	Ground water or surface water	Make industry process water
RO-pretreatment	Sea water and other water needing desalination	Sea water desalination, pure water, hyperpure water, desalted water for industrial process etc.
Supply processing	Ground water or surface water	Municipal water supply treatment
Residential water and commerce water treatment	Tap water	Drinking water purification

 Features:

•	PVDF has the capability of high anti-pollution ,anti-oxidation and fouling resistance with high flux and a stable effluent, it is easy to wash and has a long service life
•	Equipment is easy to control and the system operates automatically that can also be controlled remotely
•	Unique online air-water backwashing methology, excellent recovery rate of flux, lower self-expense water cost
•	Compact structure, suitable for the large-scale water treatment project
•	Apply specifically to transformation or extension, the original filter tank with membrane method, enhancing the processing scale and water quality
•	Generate Product water under negative suction pressure, operate with ultra-low pressure, saving  electrical energy
•	Commonly industrial dosing device can be used to wash the system, saving O&Mcosts
	high water quality, high water recovery rate, effective water-saving

 SMF System Process

  

To eliminate the membrane pollution, renew membrane flux, after running for some periods, it needs CEB or CIP chemical cleaning.

pretreatment system	fine grating	backwash system	Backwash pump,backwash tank
water supply system	water supply trench	gas supply system.	air compressor, air reservoir
membrane unit system	membrane module, membrane frames	Dosing system	Dosing pump, dosing tank
permeate system	Permeate pump , permeatetank	Cleaning system	chemical,cleaning pump, cleaning tank
backwash system	wastewater tank	Control systems	PLC control cabinet

 Engineer Application & Reprsentative Cases:

Project	Industry	Raw water	Scale T/D	Application
A reclaimed water plant	Municipal	Municipal second producing water	53,200	Domestic water
An industrial park in Tianjin	Municipal	Municipal second producing water	100,000	Park water

 We Can Provide For Users:
• SMF technical advice
• SMF application engineering design
• SMF membrane equipment’s processing and manufacturing
• SMF application engineering construction, equipment installation and debugging
• SMF system operation and management and after-sales service