Issue 42/2014 - Inauguration of seawater laboratory for positive osmosis wastewater treatment

China's first industrial wastewater zero discharge and seawater desalination and comprehensive utilization laboratory using positive osmosis technology was inaugurated
in Beijing on October 22.
The laboratory can realize the simulation experiment research of the whole process of zero discharge of industrial wastewater and seawater desalination and comprehensive utilization, and independent experiments
in each link.

The application of reverse osmosis membrane technology water treatment process in China has been basically mature, but the water treatment process of positive osmosis membrane technology is still blank
.
The former has large energy consumption and low water production efficiency, especially for the salt content of pretreated water
.
Forward osmosis does not require a pressurized process like reverse osmosis in the water treatment process, which can achieve zero discharge of industrial sewage and low-cost operation of seawater desalination, so as to achieve energy saving, high efficiency and environmental protection
.
In seawater desalination, the positive osmosis treatment process can increase the water yield of seawater desalination from the current 40% to 85%, and make it possible to extract bromine, magnesium and potassium from the generated high concentration of seawater, which has high economic value, and can greatly reduce the operating cost of seawater desalination, reduce the pollution caused by high salinity seawater to the environment, and consume 70%
of the current process.

The laboratory was jointly established
by Beijing Waltel Technology Co.
, Ltd.
, a subsidiary of China National Engineering International, and Fushun Research Institute of Sinopec.
Votel AG has a number of patented lime pretreatment technologies
.
Sinopec Fushun Research Institute has many years of technology accumulation and R&D experience
in the petrochemical field.
The cooperation will promote the application
of forward osmosis technology in the field of petrochemical wastewater treatment.
(New)