DongLi Co., LTD was founded in 1926, headquartered in Tokyo, Japan. DongLi group is a world famous in organic synthesis, high polymer chemistry and biochemistry as the core technology of high-tech multinational companies, and in global 19 countries and regions have 200 affiliated and related enterprise, with annual sales of more than 1.2 billion dollars. 35,000 employees.
DongLi company is the earliest engaged in reverse osmosis membrane technology development of enterprise, one of the early in the 1960s began membrane technology research, from the selection of raw materials, the membrane manufacture technology development and membrane element tectonic design etc, for this technology in ultra-pure water. Seawater desalination etc water treatment field application development have made outstanding contributions. Now DongLi has become the world a few can also provide acetate fiber membrane and polyamide composite membrane manufacturers; Meanwhile DongLi company is also the only one has the RO, NF, UF, MF, fiber filter cloth series membrane technology research and development and to provide whole series of commercial market membrane membrane products manufacturers.
DongLi in 1968 start the reverse osmosis membrane of research and development, now, press the different USES production RO, NF, UF, water treatment, etc. Various kinds of MF membrane, become a can develop and manufacture all kinds of liquid membrane comprehensive film maker, in these films have been widely used in different fields. RO, NF membrane products ROMEMBRATM, UF, trademark for MF membrane products for TORAYFILTM trademark. DongLi membrane products career, began in semiconductor industry in ultra-pure water manufacturing, now with seawater desalination, md desalt primarily. Especially in seawater desalination field and is currently in the world has reached accumulative total 54 million m3 / d above the use of performance. In addition, the boiler water supply, industrial water and wastewater treatment and reuse of the film USES the DongLi for various membrane products including resistant organic matter pollution excellent performance low pollution from RO membrane products, has received everywhere large-scale waterworks customers great attention.
In addition, considered the 21st century sewage treating technology revolution of membrane bioreactor (MBR), DongLi has completed the membrane products technology development, has begun on the Chinese market.The main liquid membrane products series:
1. The reverse osmosis desalting type low voltage high TM7 composite membrane element
2. Ultra low voltage large flux type reverse osmosis composite membrane element TMG
3. Extremely low pressure and energy-saving composite membrane element TMH reverse osmosis
4. Low pollution and high desalination rate reverse osmosis composite membrane element the TML
5. High reverse osmosis desalting seawater desalination composite membrane element TM8
6. Energy-saving desalination reverse osmosis composite membrane element TM8L
7. Ehv desalination reverse osmosis composite membrane element TM8H
8. Ultra low voltage large flux nanofiltration composite membrane element TMH
9. Immersion type plate-type MBR membrane bioreactor TMR
No | Model | Short description | Feed Spacer thickness | Permeate flow | Rejection | |
---|---|---|---|---|---|---|
[mil] | [m³/d] | [%] | ||||
1 | TM710 | Small system RO element for brackish water applications | NaN | 9.1 | 99.7 | |
TM720-370 | Standard RO element for brackish water applications | NaN | 36 | 99.7 | ||
3 | TM720-400 | High productivity RO element for brackish water applications | NaN | 38.6 | 99.7 | |
TM720-430 | High productivity RO element for brackish water applications | NaN | 41.6 | 99.7 | ||
5 | TM720L-400 | Low pressure RO element for brackish water applications | NaN | 32.2 | 99.5 | |
TML20-370 | Low fouling RO element for brackish water applications | NaN | 36 | 99.7 | ||
7 | TML20-400 | Low fouling and high productivity RO element for brackish water applications | NaN | 38.6 | 99.7 | |
TMG20-400 | Ultra low pressure RO element for brackish water applications | NaN | 38.6 | 99.5 | ||
9 | TMG20-430 | Ultra low pressure, high productivity and low pressure RO element for brackish water applications | NaN | 41.6 | 99.5 | |
TMG10 | Ultra low pressure small system and low pressure RO element for brackish water applications | NaN | 9.1 | 99.5 | ||
11 | TMH10A | Super ultra low pressure small system and low pressure RO element for brackish water applications | NaN | 9.1 | 99.3 | |
TMH20A-370 | Super ultra low pressure RO element for brackish water applications | NaN | 38.5 | 99.3 | ||
13 | TMH20A-400 | Super ultra low pressure RO element for brackish water applications | NaN | 41.6 | 99.3 | |
TMH20A-430 | Super ultra low pressure high productivity and low pressure RO element for brackish water applications | NaN | 44.7 | 99.3 | ||
15 | TM820C-370 | Standard RO element for sea water applications | NaN | 22.7 | 99.75 | |
TM820C-400 | High productivity RO element for sea water applications | NaN | 24.6 | 99.75 | ||
17 | TM820F-400 | High flow RO element for sea water applications | NaN | 34.1 | 99.7 | |
TM820E-400 | High flow RO element for sea water applications | NaN | 28.3 | 99.75 | ||
19 | TM820A-370 | High Boron rejection RO element for sea water applications | NaN | 21.2 | 99.75 | |
TM820A-400 | High Boron Rejection RO element for sea water applications | NaN | 22.7 | 99.75 | ||
21 | TML10 | Low fouling ,small system RO element for brackish water applications | NaN | 7 | 99.7 | |
TML10F | Low fouling, Pilot Element for comparison with 8" TML membranes, small system RO element for brackish water applications | NaN | 8.3 | 99.7 | ||
23 | TMG20-370 | Ultra low pressure RO element for brackish water applications | NaN | 36 | 99.5 | |
TM720L-430 | Low pressure RO element for brackish water applications | NaN | 32.2 | 99.5 | ||
25 | TM720C-430 | High productivity RO element for brackish water applications | NaN | 33.3 | 99.2 | |
TM720N-400 | Thicker Feed Spacer (0.86 mm Brackish Water RO Element | 34 | 38.6 | 99.7 | ||
27 | TML20N-400 | Low fouling and high productivity RO element for brackish water applications | 34 | 38.6 | 99.7 | |
TM820S-400 | High flow & Low Energy RO element for sea water applications | 28 | 34.1 | 99.75 | ||
29 | TM820V-400 | High flow, High Rejection & Low Energy RO element for sea water applications | 28 | 34.1 | 99.8 |