Issue 26/2015 - Positive osmosis achieves zero discharge of desulfurization wastewater

Recently, Beijing Votel Water Technology Co.
, Ltd.
cooperated with Huaneng Changxing Power Plant to achieve zero discharge of desulfurization wastewater by using a treatment method combining traditional lime coagulation clarification pretreatment technology and innovative positive osmosis technology, creating conditions
for such industrial sewage to achieve zero discharge and pollution-free comprehensive utilization of seawater desalination.

Beijing Votel combines its own lime coagulation clarification technology with the world's most advanced positive osmosis membrane treatment technology to design and build a 22 cubic meters / hour power plant desulfurization wastewater zero discharge system, which can not only reuse 100% of the wastewater, but also separate
all pollutants in the wastewater in the form of crystalline salt and sludge.
It is expected to recover 180,000 tons of high-quality fresh water per year, producing about 2,000 tons
of marketable industrial-grade crystalline salt.

The desulfurization brine produced by Changxing power plant is 18 tons per hour, which can be concentrated into 3~4 tons
after being treated by Votel's positive osmosis technology.
This results in a much smaller mold and significantly reduced
consumption of steam, electricity and chemicals during operation.
Compared with traditional technology, this technology can reduce the capital investment of enterprises by about 20% and operating costs
by about 30%.
(Chemical)