Page 42 - THE GLOBAL LEADER IN MEMBRANE SEPARATION INDUSTRY

PART 02 Proficient in membrane technology and
Photovoltaic materials-recovery
of silicon material cutting fluid
Silicon materials are widely used in the electronics and new energy industries, such as
photovoltaic silicon wafers, semiconductor wafers, glass panels, etc. During the processing of silicon
materials, a large amount of wastewater is generated, and the content of pollutants is high. In the
entire process of silicon material cutting fluid recovery, such as the preparation of raw materials for
silicon material production, the purification and grading of cooling liquid for silicon processing
waste liquid recycling, the preparation of process pure water, comprehensive wastewater treatment
and reuse, JIUWU HI-TECH has developed a series of process package technologies to help silicon
material production enterprises achieve green and sustainable development.
Technical advantages
· Advanced separation technology makes process separation more efficient；
· Low loss rate of silicon materials, high water reuse rate, increase corporate profits;
· Exclusive cooling liquid membrane purification and classification process, saving the amount of cooling liquid used;
· The system is mature, stable in operation, saves electricity consumption, and reduces emissions;
· Small footprint, high degree of automation.
Case presentation
10GW photovoltaic cutting fluid recycling project for a certain enterprise in Jiangsu Province
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customized processes as needed
Fuel ethanol
The traditional production process of fuel ethanol mostly uses grains and crops such as corn
and cassava as raw materials, which is difficult to solve the development problem of "not competing
for food and land with people". The production cost of non grain ethanol and biomass ethanol is
relatively high, and the market competitive advantage is relatively low. The production process
using industrial exhaust gas as raw material has low cost and produces high value-added protein
powder, turning waste into treasure, and is a revolutionary new technology for fuel ethanol; It can
effectively reduce CO , particulate matter, and NOX emissions caused by combustion, reduce
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greenhouse gas emissions, and is of great significance for protecting the ecological environment
and achieving "carbon peaking and carbon neutrality".
Separation of fuel ethanol production process
In response to the difficulties in achieving continuity and complex process control in
fermentation, as well as a series of issues such as complex gas fermentation systems, severe
membrane pollution, and difficult membrane regeneration, JIUWU HI-TECH and customers have
jointly developed a ceramic membrane separation technology coupled fermentation process. From
feasibility demonstration of small-scale and pilot research and development to industrial
application, we have successfully achieved the transformation of research and development
achievements. This technology can effectively separate microorganisms and product ethanol,
maintain strain vitality, reduce product feedback inhibition, and thus enable the continuous
operation of the fermentation process.
Technical advantages
· Ceramic membrane separation coupled fermentation process；
· Ceramic membranes are more resistant to pollution, easy to clean, and easier to achieve
long-term operation, reducing cleaning frequency;
· The ceramic membrane system has a high level of automation, making process regulation
more flexible and stable;
· Realize continuity of production, simplify processes, and reduce production costs.
A ceramic membrane separation coupled fermentation process system for an annual production
of 45000t/a fuel ethanol in a certain enterprise in Hebei Province.
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